diff options
Diffstat (limited to 'src/core/lib/iomgr')
36 files changed, 733 insertions, 711 deletions
diff --git a/src/core/lib/iomgr/closure.c b/src/core/lib/iomgr/closure.c index c6ddc76732..da0ec878a3 100644 --- a/src/core/lib/iomgr/closure.c +++ b/src/core/lib/iomgr/closure.c @@ -37,10 +37,13 @@ #include "src/core/lib/profiling/timers.h" -void grpc_closure_init(grpc_closure *closure, grpc_iomgr_cb_func cb, - void *cb_arg) { +grpc_closure *grpc_closure_init(grpc_closure *closure, grpc_iomgr_cb_func cb, + void *cb_arg, + grpc_closure_scheduler *scheduler) { closure->cb = cb; closure->cb_arg = cb_arg; + closure->scheduler = scheduler; + return closure; } void grpc_closure_list_init(grpc_closure_list *closure_list) { @@ -105,11 +108,12 @@ static void closure_wrapper(grpc_exec_ctx *exec_ctx, void *arg, cb(exec_ctx, cb_arg, error); } -grpc_closure *grpc_closure_create(grpc_iomgr_cb_func cb, void *cb_arg) { +grpc_closure *grpc_closure_create(grpc_iomgr_cb_func cb, void *cb_arg, + grpc_closure_scheduler *scheduler) { wrapped_closure *wc = gpr_malloc(sizeof(*wc)); wc->cb = cb; wc->cb_arg = cb_arg; - grpc_closure_init(&wc->wrapper, closure_wrapper, wc); + grpc_closure_init(&wc->wrapper, closure_wrapper, wc, scheduler); return &wc->wrapper; } @@ -117,8 +121,30 @@ void grpc_closure_run(grpc_exec_ctx *exec_ctx, grpc_closure *c, grpc_error *error) { GPR_TIMER_BEGIN("grpc_closure_run", 0); if (c != NULL) { - c->cb(exec_ctx, c->cb_arg, error); + c->scheduler->vtable->run(exec_ctx, c, error); + } else { + GRPC_ERROR_UNREF(error); } - GRPC_ERROR_UNREF(error); GPR_TIMER_END("grpc_closure_run", 0); } + +void grpc_closure_sched(grpc_exec_ctx *exec_ctx, grpc_closure *c, + grpc_error *error) { + GPR_TIMER_BEGIN("grpc_closure_sched", 0); + if (c != NULL) { + c->scheduler->vtable->sched(exec_ctx, c, error); + } else { + GRPC_ERROR_UNREF(error); + } + GPR_TIMER_END("grpc_closure_sched", 0); +} + +void grpc_closure_list_sched(grpc_exec_ctx *exec_ctx, grpc_closure_list *list) { + grpc_closure *c = list->head; + while (c != NULL) { + grpc_closure *next = c->next_data.next; + c->scheduler->vtable->sched(exec_ctx, c, c->error_data.error); + c = next; + } + list->head = list->tail = NULL; +} diff --git a/src/core/lib/iomgr/closure.h b/src/core/lib/iomgr/closure.h index 2b4b271eaa..1b5d9b20a0 100644 --- a/src/core/lib/iomgr/closure.h +++ b/src/core/lib/iomgr/closure.h @@ -59,6 +59,22 @@ typedef struct grpc_closure_list { typedef void (*grpc_iomgr_cb_func)(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error); +typedef struct grpc_closure_scheduler grpc_closure_scheduler; + +typedef struct grpc_closure_scheduler_vtable { + /* NOTE: for all these functions, closure->scheduler == the scheduler that was + used to find this vtable */ + void (*run)(grpc_exec_ctx *exec_ctx, grpc_closure *closure, + grpc_error *error); + void (*sched)(grpc_exec_ctx *exec_ctx, grpc_closure *closure, + grpc_error *error); +} grpc_closure_scheduler_vtable; + +/** Abstract type that can schedule closures for execution */ +struct grpc_closure_scheduler { + const grpc_closure_scheduler_vtable *vtable; +}; + /** A closure over a grpc_iomgr_cb_func. */ struct grpc_closure { /** Once queued, next indicates the next queued closure; before then, scratch @@ -75,6 +91,10 @@ struct grpc_closure { /** Arguments to be passed to "cb". */ void *cb_arg; + /** Scheduler to schedule against: NULL to schedule against current execution + context */ + grpc_closure_scheduler *scheduler; + /** Once queued, the result of the closure. Before then: scratch space */ union { grpc_error *error; @@ -82,12 +102,14 @@ struct grpc_closure { } error_data; }; -/** Initializes \a closure with \a cb and \a cb_arg. */ -void grpc_closure_init(grpc_closure *closure, grpc_iomgr_cb_func cb, - void *cb_arg); +/** Initializes \a closure with \a cb and \a cb_arg. Returns \a closure. */ +grpc_closure *grpc_closure_init(grpc_closure *closure, grpc_iomgr_cb_func cb, + void *cb_arg, + grpc_closure_scheduler *scheduler); /* Create a heap allocated closure: try to avoid except for very rare events */ -grpc_closure *grpc_closure_create(grpc_iomgr_cb_func cb, void *cb_arg); +grpc_closure *grpc_closure_create(grpc_iomgr_cb_func cb, void *cb_arg, + grpc_closure_scheduler *scheduler); #define GRPC_CLOSURE_LIST_INIT \ { NULL, NULL } @@ -115,4 +137,13 @@ bool grpc_closure_list_empty(grpc_closure_list list); void grpc_closure_run(grpc_exec_ctx *exec_ctx, grpc_closure *closure, grpc_error *error); +/** Schedule a closure to be run. Does not need to be run from a safe point. */ +void grpc_closure_sched(grpc_exec_ctx *exec_ctx, grpc_closure *closure, + grpc_error *error); + +/** Schedule all closures in a list to be run. Does not need to be run from a + * safe point. */ +void grpc_closure_list_sched(grpc_exec_ctx *exec_ctx, + grpc_closure_list *closure_list); + #endif /* GRPC_CORE_LIB_IOMGR_CLOSURE_H */ diff --git a/src/core/lib/iomgr/combiner.c b/src/core/lib/iomgr/combiner.c index cfc67020ae..c26a73b2b7 100644 --- a/src/core/lib/iomgr/combiner.c +++ b/src/core/lib/iomgr/combiner.c @@ -56,6 +56,10 @@ int grpc_combiner_trace = 0; struct grpc_combiner { grpc_combiner *next_combiner_on_this_exec_ctx; grpc_workqueue *optional_workqueue; + grpc_closure_scheduler uncovered_scheduler; + grpc_closure_scheduler covered_scheduler; + grpc_closure_scheduler uncovered_finally_scheduler; + grpc_closure_scheduler covered_finally_scheduler; gpr_mpscq queue; // state is: // lower bit - zero if orphaned (STATE_UNORPHANED) @@ -70,6 +74,26 @@ struct grpc_combiner { grpc_closure offload; }; +static void combiner_exec_uncovered(grpc_exec_ctx *exec_ctx, + grpc_closure *closure, grpc_error *error); +static void combiner_exec_covered(grpc_exec_ctx *exec_ctx, + grpc_closure *closure, grpc_error *error); +static void combiner_finally_exec_uncovered(grpc_exec_ctx *exec_ctx, + grpc_closure *closure, + grpc_error *error); +static void combiner_finally_exec_covered(grpc_exec_ctx *exec_ctx, + grpc_closure *closure, + grpc_error *error); + +static const grpc_closure_scheduler_vtable scheduler_uncovered = { + combiner_exec_uncovered, combiner_exec_uncovered}; +static const grpc_closure_scheduler_vtable scheduler_covered = { + combiner_exec_covered, combiner_exec_covered}; +static const grpc_closure_scheduler_vtable finally_scheduler_uncovered = { + combiner_finally_exec_uncovered, combiner_finally_exec_uncovered}; +static const grpc_closure_scheduler_vtable finally_scheduler_covered = { + combiner_finally_exec_covered, combiner_finally_exec_covered}; + static void offload(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error); typedef struct { @@ -102,11 +126,16 @@ grpc_combiner *grpc_combiner_create(grpc_workqueue *optional_workqueue) { lock->time_to_execute_final_list = false; lock->optional_workqueue = optional_workqueue; lock->final_list_covered_by_poller = false; + lock->uncovered_scheduler.vtable = &scheduler_uncovered; + lock->covered_scheduler.vtable = &scheduler_covered; + lock->uncovered_finally_scheduler.vtable = &finally_scheduler_uncovered; + lock->covered_finally_scheduler.vtable = &finally_scheduler_covered; gpr_atm_no_barrier_store(&lock->state, STATE_UNORPHANED); gpr_atm_no_barrier_store(&lock->elements_covered_by_poller, 0); gpr_mpscq_init(&lock->queue); grpc_closure_list_init(&lock->final_list); - grpc_closure_init(&lock->offload, offload, lock); + grpc_closure_init(&lock->offload, offload, lock, + grpc_workqueue_scheduler(lock->optional_workqueue)); GRPC_COMBINER_TRACE(gpr_log(GPR_DEBUG, "C:%p create", lock)); return lock; } @@ -148,9 +177,9 @@ static void push_first_on_exec_ctx(grpc_exec_ctx *exec_ctx, } } -void grpc_combiner_execute(grpc_exec_ctx *exec_ctx, grpc_combiner *lock, - grpc_closure *cl, grpc_error *error, - bool covered_by_poller) { +static void combiner_exec(grpc_exec_ctx *exec_ctx, grpc_combiner *lock, + grpc_closure *cl, grpc_error *error, + bool covered_by_poller) { GPR_TIMER_BEGIN("combiner.execute", 0); gpr_atm last = gpr_atm_full_fetch_add(&lock->state, STATE_ELEM_COUNT_LOW_BIT); GRPC_COMBINER_TRACE(gpr_log( @@ -171,6 +200,24 @@ void grpc_combiner_execute(grpc_exec_ctx *exec_ctx, grpc_combiner *lock, GPR_TIMER_END("combiner.execute", 0); } +#define COMBINER_FROM_CLOSURE_SCHEDULER(closure, scheduler_name) \ + ((grpc_combiner *)(((char *)((closure)->scheduler)) - \ + offsetof(grpc_combiner, scheduler_name))) + +static void combiner_exec_uncovered(grpc_exec_ctx *exec_ctx, grpc_closure *cl, + grpc_error *error) { + combiner_exec(exec_ctx, + COMBINER_FROM_CLOSURE_SCHEDULER(cl, uncovered_scheduler), cl, + error, false); +} + +static void combiner_exec_covered(grpc_exec_ctx *exec_ctx, grpc_closure *cl, + grpc_error *error) { + combiner_exec(exec_ctx, + COMBINER_FROM_CLOSURE_SCHEDULER(cl, covered_scheduler), cl, + error, true); +} + static void move_next(grpc_exec_ctx *exec_ctx) { exec_ctx->active_combiner = exec_ctx->active_combiner->next_combiner_on_this_exec_ctx; @@ -188,8 +235,7 @@ static void queue_offload(grpc_exec_ctx *exec_ctx, grpc_combiner *lock) { move_next(exec_ctx); GRPC_COMBINER_TRACE(gpr_log(GPR_DEBUG, "C:%p queue_offload --> %p", lock, lock->optional_workqueue)); - grpc_workqueue_enqueue(exec_ctx, lock->optional_workqueue, &lock->offload, - GRPC_ERROR_NONE); + grpc_closure_sched(exec_ctx, &lock->offload, GRPC_ERROR_NONE); } bool grpc_combiner_continue_exec_ctx(grpc_exec_ctx *exec_ctx) { @@ -312,23 +358,22 @@ bool grpc_combiner_continue_exec_ctx(grpc_exec_ctx *exec_ctx) { } static void enqueue_finally(grpc_exec_ctx *exec_ctx, void *closure, - grpc_error *error) { - grpc_combiner_execute_finally(exec_ctx, exec_ctx->active_combiner, closure, - GRPC_ERROR_REF(error), false); -} + grpc_error *error); -void grpc_combiner_execute_finally(grpc_exec_ctx *exec_ctx, grpc_combiner *lock, - grpc_closure *closure, grpc_error *error, - bool covered_by_poller) { +static void combiner_execute_finally(grpc_exec_ctx *exec_ctx, + grpc_combiner *lock, grpc_closure *closure, + grpc_error *error, + bool covered_by_poller) { GRPC_COMBINER_TRACE(gpr_log( GPR_DEBUG, "C:%p grpc_combiner_execute_finally c=%p; ac=%p; cov=%d", lock, closure, exec_ctx->active_combiner, covered_by_poller)); GPR_TIMER_BEGIN("combiner.execute_finally", 0); if (exec_ctx->active_combiner != lock) { GPR_TIMER_MARK("slowpath", 0); - grpc_combiner_execute(exec_ctx, lock, - grpc_closure_create(enqueue_finally, closure), error, - false); + grpc_closure_sched( + exec_ctx, grpc_closure_create(enqueue_finally, closure, + grpc_combiner_scheduler(lock, false)), + error); GPR_TIMER_END("combiner.execute_finally", 0); return; } @@ -342,3 +387,36 @@ void grpc_combiner_execute_finally(grpc_exec_ctx *exec_ctx, grpc_combiner *lock, grpc_closure_list_append(&lock->final_list, closure, error); GPR_TIMER_END("combiner.execute_finally", 0); } + +static void enqueue_finally(grpc_exec_ctx *exec_ctx, void *closure, + grpc_error *error) { + combiner_execute_finally(exec_ctx, exec_ctx->active_combiner, closure, + GRPC_ERROR_REF(error), false); +} + +static void combiner_finally_exec_uncovered(grpc_exec_ctx *exec_ctx, + grpc_closure *cl, + grpc_error *error) { + combiner_execute_finally(exec_ctx, COMBINER_FROM_CLOSURE_SCHEDULER( + cl, uncovered_finally_scheduler), + cl, error, false); +} + +static void combiner_finally_exec_covered(grpc_exec_ctx *exec_ctx, + grpc_closure *cl, grpc_error *error) { + combiner_execute_finally( + exec_ctx, COMBINER_FROM_CLOSURE_SCHEDULER(cl, covered_finally_scheduler), + cl, error, true); +} + +grpc_closure_scheduler *grpc_combiner_scheduler(grpc_combiner *combiner, + bool covered_by_poller) { + return covered_by_poller ? &combiner->covered_scheduler + : &combiner->uncovered_scheduler; +} + +grpc_closure_scheduler *grpc_combiner_finally_scheduler( + grpc_combiner *combiner, bool covered_by_poller) { + return covered_by_poller ? &combiner->covered_finally_scheduler + : &combiner->uncovered_finally_scheduler; +} diff --git a/src/core/lib/iomgr/combiner.h b/src/core/lib/iomgr/combiner.h index d04eeed83a..81dff85d40 100644 --- a/src/core/lib/iomgr/combiner.h +++ b/src/core/lib/iomgr/combiner.h @@ -50,14 +50,12 @@ grpc_combiner *grpc_combiner_create(grpc_workqueue *optional_workqueue); // Destroy the lock void grpc_combiner_destroy(grpc_exec_ctx *exec_ctx, grpc_combiner *lock); -// Execute \a action within the lock. -void grpc_combiner_execute(grpc_exec_ctx *exec_ctx, grpc_combiner *lock, - grpc_closure *closure, grpc_error *error, - bool covered_by_poller); -// Execute \a action within the lock just prior to unlocking. -void grpc_combiner_execute_finally(grpc_exec_ctx *exec_ctx, grpc_combiner *lock, - grpc_closure *closure, grpc_error *error, - bool covered_by_poller); +// Fetch a scheduler to schedule closures against +grpc_closure_scheduler *grpc_combiner_scheduler(grpc_combiner *lock, + bool covered_by_poller); +// Scheduler to execute \a action within the lock just prior to unlocking. +grpc_closure_scheduler *grpc_combiner_finally_scheduler(grpc_combiner *lock, + bool covered_by_poller); bool grpc_combiner_continue_exec_ctx(grpc_exec_ctx *exec_ctx); diff --git a/src/core/lib/iomgr/ev_epoll_linux.c b/src/core/lib/iomgr/ev_epoll_linux.c index 07fbfd849e..045001f6d8 100644 --- a/src/core/lib/iomgr/ev_epoll_linux.c +++ b/src/core/lib/iomgr/ev_epoll_linux.c @@ -69,6 +69,9 @@ static int grpc_polling_trace = 0; /* Disabled by default */ gpr_log(GPR_INFO, (fmt), __VA_ARGS__); \ } +/* Uncomment the following enable extra checks on poll_object operations */ +/* #define PO_DEBUG */ + static int grpc_wakeup_signal = -1; static bool is_grpc_wakeup_signal_initialized = false; @@ -95,10 +98,42 @@ void grpc_use_signal(int signum) { struct polling_island; +typedef enum { + POLL_OBJ_FD, + POLL_OBJ_POLLSET, + POLL_OBJ_POLLSET_SET +} poll_obj_type; + +typedef struct poll_obj { +#ifdef PO_DEBUG + poll_obj_type obj_type; +#endif + gpr_mu mu; + struct polling_island *pi; +} poll_obj; + +const char *poll_obj_string(poll_obj_type po_type) { + switch (po_type) { + case POLL_OBJ_FD: + return "fd"; + case POLL_OBJ_POLLSET: + return "pollset"; + case POLL_OBJ_POLLSET_SET: + return "pollset_set"; + } + + GPR_UNREACHABLE_CODE(return "UNKNOWN"); +} + /******************************************************************************* * Fd Declarations */ + +#define FD_FROM_PO(po) ((grpc_fd *)(po)) + struct grpc_fd { + poll_obj po; + int fd; /* refst format: bit 0 : 1=Active / 0=Orphaned @@ -106,8 +141,6 @@ struct grpc_fd { Ref/Unref by two to avoid altering the orphaned bit */ gpr_atm refst; - gpr_mu mu; - /* Indicates that the fd is shutdown and that any pending read/write closures should fail */ bool shutdown; @@ -120,9 +153,6 @@ struct grpc_fd { grpc_closure *read_closure; grpc_closure *write_closure; - /* The polling island to which this fd belongs to (protected by mu) */ - struct polling_island *polling_island; - struct grpc_fd *freelist_next; grpc_closure *on_done_closure; @@ -172,6 +202,8 @@ static void fd_global_shutdown(void); /* This is also used as grpc_workqueue (by directly casing it) */ typedef struct polling_island { + grpc_closure_scheduler workqueue_scheduler; + gpr_mu mu; /* Ref count. Use PI_ADD_REF() and PI_UNREF() macros to increment/decrement the refcount. @@ -225,41 +257,21 @@ struct grpc_pollset_worker { }; struct grpc_pollset { - gpr_mu mu; + poll_obj po; + grpc_pollset_worker root_worker; bool kicked_without_pollers; bool shutting_down; /* Is the pollset shutting down ? */ bool finish_shutdown_called; /* Is the 'finish_shutdown_locked()' called ? */ grpc_closure *shutdown_done; /* Called after after shutdown is complete */ - - /* The polling island to which this pollset belongs to */ - struct polling_island *polling_island; }; /******************************************************************************* * Pollset-set Declarations */ -/* TODO: sreek - Change the pollset_set implementation such that a pollset_set - * directly points to a polling_island (and adding an fd/pollset/pollset_set to - * the current pollset_set would result in polling island merges. This would - * remove the need to maintain fd_count here. This will also significantly - * simplify the grpc_fd structure since we would no longer need to explicitly - * maintain the orphaned state */ struct grpc_pollset_set { - gpr_mu mu; - - size_t pollset_count; - size_t pollset_capacity; - grpc_pollset **pollsets; - - size_t pollset_set_count; - size_t pollset_set_capacity; - struct grpc_pollset_set **pollset_sets; - - size_t fd_count; - size_t fd_capacity; - grpc_fd **fds; + poll_obj po; }; /******************************************************************************* @@ -295,6 +307,8 @@ static __thread polling_island *g_current_thread_polling_island; /* Forward declaration */ static void polling_island_delete(grpc_exec_ctx *exec_ctx, polling_island *pi); +static void workqueue_enqueue(grpc_exec_ctx *exec_ctx, grpc_closure *closure, + grpc_error *error); #ifdef GRPC_TSAN /* Currently TSAN may incorrectly flag data races between epoll_ctl and @@ -307,6 +321,9 @@ static void polling_island_delete(grpc_exec_ctx *exec_ctx, polling_island *pi); gpr_atm g_epoll_sync; #endif /* defined(GRPC_TSAN) */ +static const grpc_closure_scheduler_vtable workqueue_scheduler_vtable = { + workqueue_enqueue, workqueue_enqueue}; + static void pi_add_ref(polling_island *pi); static void pi_unref(grpc_exec_ctx *exec_ctx, polling_island *pi); @@ -519,6 +536,7 @@ static polling_island *polling_island_create(grpc_exec_ctx *exec_ctx, *error = GRPC_ERROR_NONE; pi = gpr_malloc(sizeof(*pi)); + pi->workqueue_scheduler.vtable = &workqueue_scheduler_vtable; gpr_mu_init(&pi->mu); pi->fd_cnt = 0; pi->fd_capacity = 0; @@ -790,10 +808,10 @@ static polling_island *polling_island_merge(polling_island *p, return q; } -static void workqueue_enqueue(grpc_exec_ctx *exec_ctx, - grpc_workqueue *workqueue, grpc_closure *closure, +static void workqueue_enqueue(grpc_exec_ctx *exec_ctx, grpc_closure *closure, grpc_error *error) { GPR_TIMER_BEGIN("workqueue.enqueue", 0); + grpc_workqueue *workqueue = (grpc_workqueue *)closure->scheduler; /* take a ref to the workqueue: otherwise it can happen that whatever events * this kicks off ends up destroying the workqueue before this function * completes */ @@ -810,6 +828,12 @@ static void workqueue_enqueue(grpc_exec_ctx *exec_ctx, GPR_TIMER_END("workqueue.enqueue", 0); } +static grpc_closure_scheduler *workqueue_scheduler(grpc_workqueue *workqueue) { + polling_island *pi = (polling_island *)workqueue; + return workqueue == NULL ? grpc_schedule_on_exec_ctx + : &pi->workqueue_scheduler; +} + static grpc_error *polling_island_global_init() { grpc_error *error = GRPC_ERROR_NONE; @@ -915,7 +939,7 @@ static void fd_global_shutdown(void) { while (fd_freelist != NULL) { grpc_fd *fd = fd_freelist; fd_freelist = fd_freelist->freelist_next; - gpr_mu_destroy(&fd->mu); + gpr_mu_destroy(&fd->po.mu); gpr_free(fd); } gpr_mu_destroy(&fd_freelist_mu); @@ -933,13 +957,17 @@ static grpc_fd *fd_create(int fd, const char *name) { if (new_fd == NULL) { new_fd = gpr_malloc(sizeof(grpc_fd)); - gpr_mu_init(&new_fd->mu); + gpr_mu_init(&new_fd->po.mu); } - /* Note: It is not really needed to get the new_fd->mu lock here. If this is a - newly created fd (or an fd we got from the freelist), no one else would be - holding a lock to it anyway. */ - gpr_mu_lock(&new_fd->mu); + /* Note: It is not really needed to get the new_fd->po.mu lock here. If this + * is a newly created fd (or an fd we got from the freelist), no one else + * would be holding a lock to it anyway. */ + gpr_mu_lock(&new_fd->po.mu); + new_fd->po.pi = NULL; +#ifdef PO_DEBUG + new_fd->po.obj_type = POLL_OBJ_FD; +#endif gpr_atm_rel_store(&new_fd->refst, (gpr_atm)1); new_fd->fd = fd; @@ -947,12 +975,11 @@ static grpc_fd *fd_create(int fd, const char *name) { new_fd->orphaned = false; new_fd->read_closure = CLOSURE_NOT_READY; new_fd->write_closure = CLOSURE_NOT_READY; - new_fd->polling_island = NULL; new_fd->freelist_next = NULL; new_fd->on_done_closure = NULL; new_fd->read_notifier_pollset = NULL; - gpr_mu_unlock(&new_fd->mu); + gpr_mu_unlock(&new_fd->po.mu); char *fd_name; gpr_asprintf(&fd_name, "%s fd=%d", name, fd); @@ -964,17 +991,13 @@ static grpc_fd *fd_create(int fd, const char *name) { return new_fd; } -static bool fd_is_orphaned(grpc_fd *fd) { - return (gpr_atm_acq_load(&fd->refst) & 1) == 0; -} - static int fd_wrapped_fd(grpc_fd *fd) { int ret_fd = -1; - gpr_mu_lock(&fd->mu); + gpr_mu_lock(&fd->po.mu); if (!fd->orphaned) { ret_fd = fd->fd; } - gpr_mu_unlock(&fd->mu); + gpr_mu_unlock(&fd->po.mu); return ret_fd; } @@ -986,7 +1009,7 @@ static void fd_orphan(grpc_exec_ctx *exec_ctx, grpc_fd *fd, grpc_error *error = GRPC_ERROR_NONE; polling_island *unref_pi = NULL; - gpr_mu_lock(&fd->mu); + gpr_mu_lock(&fd->po.mu); fd->on_done_closure = on_done; /* If release_fd is not NULL, we should be relinquishing control of the file @@ -1006,25 +1029,24 @@ static void fd_orphan(grpc_exec_ctx *exec_ctx, grpc_fd *fd, /* Remove the fd from the polling island: - Get a lock on the latest polling island (i.e the last island in the - linked list pointed by fd->polling_island). This is the island that + linked list pointed by fd->po.pi). This is the island that would actually contain the fd - Remove the fd from the latest polling island - Unlock the latest polling island - - Set fd->polling_island to NULL (but remove the ref on the polling island + - Set fd->po.pi to NULL (but remove the ref on the polling island before doing this.) */ - if (fd->polling_island != NULL) { - polling_island *pi_latest = polling_island_lock(fd->polling_island); + if (fd->po.pi != NULL) { + polling_island *pi_latest = polling_island_lock(fd->po.pi); polling_island_remove_fd_locked(pi_latest, fd, is_fd_closed, &error); gpr_mu_unlock(&pi_latest->mu); - unref_pi = fd->polling_island; - fd->polling_island = NULL; + unref_pi = fd->po.pi; + fd->po.pi = NULL; } - grpc_exec_ctx_sched(exec_ctx, fd->on_done_closure, GRPC_ERROR_REF(error), - NULL); + grpc_closure_sched(exec_ctx, fd->on_done_closure, GRPC_ERROR_REF(error)); - gpr_mu_unlock(&fd->mu); + gpr_mu_unlock(&fd->po.mu); UNREF_BY(fd, 2, reason); /* Drop the reference */ if (unref_pi != NULL) { /* Unref stale polling island here, outside the fd lock above. @@ -1048,16 +1070,14 @@ static grpc_error *fd_shutdown_error(bool shutdown) { static void notify_on_locked(grpc_exec_ctx *exec_ctx, grpc_fd *fd, grpc_closure **st, grpc_closure *closure) { if (fd->shutdown) { - grpc_exec_ctx_sched(exec_ctx, closure, GRPC_ERROR_CREATE("FD shutdown"), - NULL); + grpc_closure_sched(exec_ctx, closure, GRPC_ERROR_CREATE("FD shutdown")); } else if (*st == CLOSURE_NOT_READY) { /* not ready ==> switch to a waiting state by setting the closure */ *st = closure; } else if (*st == CLOSURE_READY) { /* already ready ==> queue the closure to run immediately */ *st = CLOSURE_NOT_READY; - grpc_exec_ctx_sched(exec_ctx, closure, fd_shutdown_error(fd->shutdown), - NULL); + grpc_closure_sched(exec_ctx, closure, fd_shutdown_error(fd->shutdown)); } else { /* upcallptr was set to a different closure. This is an error! */ gpr_log(GPR_ERROR, @@ -1079,7 +1099,7 @@ static int set_ready_locked(grpc_exec_ctx *exec_ctx, grpc_fd *fd, return 0; } else { /* waiting ==> queue closure */ - grpc_exec_ctx_sched(exec_ctx, *st, fd_shutdown_error(fd->shutdown), NULL); + grpc_closure_sched(exec_ctx, *st, fd_shutdown_error(fd->shutdown)); *st = CLOSURE_NOT_READY; return 1; } @@ -1089,23 +1109,23 @@ static grpc_pollset *fd_get_read_notifier_pollset(grpc_exec_ctx *exec_ctx, grpc_fd *fd) { grpc_pollset *notifier = NULL; - gpr_mu_lock(&fd->mu); + gpr_mu_lock(&fd->po.mu); notifier = fd->read_notifier_pollset; - gpr_mu_unlock(&fd->mu); + gpr_mu_unlock(&fd->po.mu); return notifier; } static bool fd_is_shutdown(grpc_fd *fd) { - gpr_mu_lock(&fd->mu); + gpr_mu_lock(&fd->po.mu); const bool r = fd->shutdown; - gpr_mu_unlock(&fd->mu); + gpr_mu_unlock(&fd->po.mu); return r; } /* Might be called multiple times */ static void fd_shutdown(grpc_exec_ctx *exec_ctx, grpc_fd *fd) { - gpr_mu_lock(&fd->mu); + gpr_mu_lock(&fd->po.mu); /* Do the actual shutdown only once */ if (!fd->shutdown) { fd->shutdown = true; @@ -1116,28 +1136,28 @@ static void fd_shutdown(grpc_exec_ctx *exec_ctx, grpc_fd *fd) { set_ready_locked(exec_ctx, fd, &fd->read_closure); set_ready_locked(exec_ctx, fd, &fd->write_closure); } - gpr_mu_unlock(&fd->mu); + gpr_mu_unlock(&fd->po.mu); } static void fd_notify_on_read(grpc_exec_ctx *exec_ctx, grpc_fd *fd, grpc_closure *closure) { - gpr_mu_lock(&fd->mu); + gpr_mu_lock(&fd->po.mu); notify_on_locked(exec_ctx, fd, &fd->read_closure, closure); - gpr_mu_unlock(&fd->mu); + gpr_mu_unlock(&fd->po.mu); } static void fd_notify_on_write(grpc_exec_ctx *exec_ctx, grpc_fd *fd, grpc_closure *closure) { - gpr_mu_lock(&fd->mu); + gpr_mu_lock(&fd->po.mu); notify_on_locked(exec_ctx, fd, &fd->write_closure, closure); - gpr_mu_unlock(&fd->mu); + gpr_mu_unlock(&fd->po.mu); } static grpc_workqueue *fd_get_workqueue(grpc_fd *fd) { - gpr_mu_lock(&fd->mu); - grpc_workqueue *workqueue = GRPC_WORKQUEUE_REF( - (grpc_workqueue *)fd->polling_island, "fd_get_workqueue"); - gpr_mu_unlock(&fd->mu); + gpr_mu_lock(&fd->po.mu); + grpc_workqueue *workqueue = + GRPC_WORKQUEUE_REF((grpc_workqueue *)fd->po.pi, "fd_get_workqueue"); + gpr_mu_unlock(&fd->po.mu); return workqueue; } @@ -1277,8 +1297,12 @@ static grpc_error *kick_poller(void) { } static void pollset_init(grpc_pollset *pollset, gpr_mu **mu) { - gpr_mu_init(&pollset->mu); - *mu = &pollset->mu; + gpr_mu_init(&pollset->po.mu); + *mu = &pollset->po.mu; + pollset->po.pi = NULL; +#ifdef PO_DEBUG + pollset->po.obj_type = POLL_OBJ_POLLSET; +#endif pollset->root_worker.next = pollset->root_worker.prev = &pollset->root_worker; pollset->kicked_without_pollers = false; @@ -1286,8 +1310,6 @@ static void pollset_init(grpc_pollset *pollset, gpr_mu **mu) { pollset->shutting_down = false; pollset->finish_shutdown_called = false; pollset->shutdown_done = NULL; - - pollset->polling_island = NULL; } /* Convert a timespec to milliseconds: @@ -1317,26 +1339,26 @@ static int poll_deadline_to_millis_timeout(gpr_timespec deadline, static void fd_become_readable(grpc_exec_ctx *exec_ctx, grpc_fd *fd, grpc_pollset *notifier) { - /* Need the fd->mu since we might be racing with fd_notify_on_read */ - gpr_mu_lock(&fd->mu); + /* Need the fd->po.mu since we might be racing with fd_notify_on_read */ + gpr_mu_lock(&fd->po.mu); set_ready_locked(exec_ctx, fd, &fd->read_closure); fd->read_notifier_pollset = notifier; - gpr_mu_unlock(&fd->mu); + gpr_mu_unlock(&fd->po.mu); } static void fd_become_writable(grpc_exec_ctx *exec_ctx, grpc_fd *fd) { - /* Need the fd->mu since we might be racing with fd_notify_on_write */ - gpr_mu_lock(&fd->mu); + /* Need the fd->po.mu since we might be racing with fd_notify_on_write */ + gpr_mu_lock(&fd->po.mu); set_ready_locked(exec_ctx, fd, &fd->write_closure); - gpr_mu_unlock(&fd->mu); + gpr_mu_unlock(&fd->po.mu); } static void pollset_release_polling_island(grpc_exec_ctx *exec_ctx, grpc_pollset *ps, char *reason) { - if (ps->polling_island != NULL) { - PI_UNREF(exec_ctx, ps->polling_island, reason); + if (ps->po.pi != NULL) { + PI_UNREF(exec_ctx, ps->po.pi, reason); } - ps->polling_island = NULL; + ps->po.pi = NULL; } static void finish_shutdown_locked(grpc_exec_ctx *exec_ctx, @@ -1346,12 +1368,12 @@ static void finish_shutdown_locked(grpc_exec_ctx *exec_ctx, pollset->finish_shutdown_called = true; - /* Release the ref and set pollset->polling_island to NULL */ + /* Release the ref and set pollset->po.pi to NULL */ pollset_release_polling_island(exec_ctx, pollset, "ps_shutdown"); - grpc_exec_ctx_sched(exec_ctx, pollset->shutdown_done, GRPC_ERROR_NONE, NULL); + grpc_closure_sched(exec_ctx, pollset->shutdown_done, GRPC_ERROR_NONE); } -/* pollset->mu lock must be held by the caller before calling this */ +/* pollset->po.mu lock must be held by the caller before calling this */ static void pollset_shutdown(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset, grpc_closure *closure) { GPR_TIMER_BEGIN("pollset_shutdown", 0); @@ -1376,7 +1398,7 @@ static void pollset_shutdown(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset, * here */ static void pollset_destroy(grpc_pollset *pollset) { GPR_ASSERT(!pollset_has_workers(pollset)); - gpr_mu_destroy(&pollset->mu); + gpr_mu_destroy(&pollset->po.mu); } static void pollset_reset(grpc_pollset *pollset) { @@ -1386,7 +1408,7 @@ static void pollset_reset(grpc_pollset *pollset) { pollset->finish_shutdown_called = false; pollset->kicked_without_pollers = false; pollset->shutdown_done = NULL; - GPR_ASSERT(pollset->polling_island == NULL); + GPR_ASSERT(pollset->po.pi == NULL); } static bool maybe_do_workqueue_work(grpc_exec_ctx *exec_ctx, @@ -1399,7 +1421,9 @@ static bool maybe_do_workqueue_work(grpc_exec_ctx *exec_ctx, workqueue_maybe_wakeup(pi); } grpc_closure *c = (grpc_closure *)n; - grpc_closure_run(exec_ctx, c, c->error_data.error); + grpc_error *error = c->error_data.error; + c->cb(exec_ctx, c->cb_arg, error); + GRPC_ERROR_UNREF(error); return true; } else if (gpr_atm_no_barrier_load(&pi->workqueue_item_count) > 0) { /* n == NULL might mean there's work but it's not available to be popped @@ -1426,7 +1450,7 @@ static void pollset_work_and_unlock(grpc_exec_ctx *exec_ctx, GPR_TIMER_BEGIN("pollset_work_and_unlock", 0); /* We need to get the epoll_fd to wait on. The epoll_fd is in inside the - latest polling island pointed by pollset->polling_island. + latest polling island pointed by pollset->po.pi Since epoll_fd is immutable, we can read it without obtaining the polling island lock. There is however a possibility that the polling island (from @@ -1435,36 +1459,36 @@ static void pollset_work_and_unlock(grpc_exec_ctx *exec_ctx, right-away from epoll_wait() and pick up the latest polling_island the next this function (i.e pollset_work_and_unlock()) is called */ - if (pollset->polling_island == NULL) { - pollset->polling_island = polling_island_create(exec_ctx, NULL, error); - if (pollset->polling_island == NULL) { + if (pollset->po.pi == NULL) { + pollset->po.pi = polling_island_create(exec_ctx, NULL, error); + if (pollset->po.pi == NULL) { GPR_TIMER_END("pollset_work_and_unlock", 0); return; /* Fatal error. We cannot continue */ } - PI_ADD_REF(pollset->polling_island, "ps"); + PI_ADD_REF(pollset->po.pi, "ps"); GRPC_POLLING_TRACE("pollset_work: pollset: %p created new pi: %p", - (void *)pollset, (void *)pollset->polling_island); + (void *)pollset, (void *)pollset->po.pi); } - pi = polling_island_maybe_get_latest(pollset->polling_island); + pi = polling_island_maybe_get_latest(pollset->po.pi); epoll_fd = pi->epoll_fd; - /* Update the pollset->polling_island since the island being pointed by - pollset->polling_island maybe older than the one pointed by pi) */ - if (pollset->polling_island != pi) { + /* Update the pollset->po.pi since the island being pointed by + pollset->po.pi maybe older than the one pointed by pi) */ + if (pollset->po.pi != pi) { /* Always do PI_ADD_REF before PI_UNREF because PI_UNREF may cause the polling island to be deleted */ PI_ADD_REF(pi, "ps"); - PI_UNREF(exec_ctx, pollset->polling_island, "ps"); - pollset->polling_island = pi; + PI_UNREF(exec_ctx, pollset->po.pi, "ps"); + pollset->po.pi = pi; } /* Add an extra ref so that the island does not get destroyed (which means the epoll_fd won't be closed) while we are are doing an epoll_wait() on the epoll_fd */ PI_ADD_REF(pi, "ps_work"); - gpr_mu_unlock(&pollset->mu); + gpr_mu_unlock(&pollset->po.mu); /* If we get some workqueue work to do, it might end up completing an item on the completion queue, so there's no need to poll... so we skip that and @@ -1537,17 +1561,17 @@ static void pollset_work_and_unlock(grpc_exec_ctx *exec_ctx, GPR_ASSERT(pi != NULL); /* Before leaving, release the extra ref we added to the polling island. It - is important to use "pi" here (i.e our old copy of pollset->polling_island + is important to use "pi" here (i.e our old copy of pollset->po.pi that we got before releasing the polling island lock). This is because - pollset->polling_island pointer might get udpated in other parts of the + pollset->po.pi pointer might get udpated in other parts of the code when there is an island merge while we are doing epoll_wait() above */ PI_UNREF(exec_ctx, pi, "ps_work"); GPR_TIMER_END("pollset_work_and_unlock", 0); } -/* pollset->mu lock must be held by the caller before calling this. - The function pollset_work() may temporarily release the lock (pollset->mu) +/* pollset->po.mu lock must be held by the caller before calling this. + The function pollset_work() may temporarily release the lock (pollset->po.mu) during the course of its execution but it will always re-acquire the lock and ensure that it is held by the time the function returns */ static grpc_error *pollset_work(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset, @@ -1617,7 +1641,7 @@ static grpc_error *pollset_work(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset, &g_orig_sigmask, &error); grpc_exec_ctx_flush(exec_ctx); - gpr_mu_lock(&pollset->mu); + gpr_mu_lock(&pollset->po.mu); /* Note: There is no need to reset worker.is_kicked to 0 since we are no longer going to use this worker */ @@ -1637,9 +1661,9 @@ static grpc_error *pollset_work(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset, GPR_TIMER_MARK("pollset_work.finish_shutdown_locked", 0); finish_shutdown_locked(exec_ctx, pollset); - gpr_mu_unlock(&pollset->mu); + gpr_mu_unlock(&pollset->po.mu); grpc_exec_ctx_flush(exec_ctx); - gpr_mu_lock(&pollset->mu); + gpr_mu_lock(&pollset->po.mu); } *worker_hdl = NULL; @@ -1653,130 +1677,160 @@ static grpc_error *pollset_work(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset, return error; } -static void pollset_add_fd(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset, - grpc_fd *fd) { - GPR_TIMER_BEGIN("pollset_add_fd", 0); - - grpc_error *error = GRPC_ERROR_NONE; +static void add_poll_object(grpc_exec_ctx *exec_ctx, poll_obj *bag, + poll_obj_type bag_type, poll_obj *item, + poll_obj_type item_type) { + GPR_TIMER_BEGIN("add_poll_object", 0); - gpr_mu_lock(&pollset->mu); - gpr_mu_lock(&fd->mu); +#ifdef PO_DEBUG + GPR_ASSERT(item->obj_type == item_type); + GPR_ASSERT(bag->obj_type == bag_type); +#endif + grpc_error *error = GRPC_ERROR_NONE; polling_island *pi_new = NULL; + gpr_mu_lock(&bag->mu); + gpr_mu_lock(&item->mu); + retry: - /* 1) If fd->polling_island and pollset->polling_island are both non-NULL and - * equal, do nothing. - * 2) If fd->polling_island and pollset->polling_island are both NULL, create - * a new polling island (with a refcount of 2) and make the polling_island - * fields in both fd and pollset to point to the new island - * 3) If one of fd->polling_island or pollset->polling_island is NULL, update - * the NULL polling_island field to point to the non-NULL polling_island - * field (ensure that the refcount on the polling island is incremented by - * 1 to account for the newly added reference) - * 4) Finally, if fd->polling_island and pollset->polling_island are non-NULL - * and different, merge both the polling islands and update the - * polling_island fields in both fd and pollset to point to the merged - * polling island. + /* + * 1) If item->pi and bag->pi are both non-NULL and equal, do nothing + * 2) If item->pi and bag->pi are both NULL, create a new polling island (with + * a refcount of 2) and point item->pi and bag->pi to the new island + * 3) If exactly one of item->pi or bag->pi is NULL, update it to point to + * the other's non-NULL pi + * 4) Finally if item->pi and bag-pi are non-NULL and not-equal, merge the + * polling islands and update item->pi and bag->pi to point to the new + * island */ - if (fd->orphaned) { - gpr_mu_unlock(&fd->mu); - gpr_mu_unlock(&pollset->mu); - /* early out */ + /* Early out if we are trying to add an 'fd' to a 'bag' but the fd is already + * orphaned */ + if (item_type == POLL_OBJ_FD && (FD_FROM_PO(item))->orphaned) { + gpr_mu_unlock(&item->mu); + gpr_mu_unlock(&bag->mu); return; } - if (fd->polling_island == pollset->polling_island) { - pi_new = fd->polling_island; + if (item->pi == bag->pi) { + pi_new = item->pi; if (pi_new == NULL) { - /* Unlock before creating a new polling island: the polling island will - create a workqueue which creates a file descriptor, and holding an fd - lock here can eventually cause a loop to appear to TSAN (making it - unhappy). We don't think it's a real loop (there's an epoch point where - that loop possibility disappears), but the advantages of keeping TSAN - happy outweigh any performance advantage we might have by keeping the - lock held. */ - gpr_mu_unlock(&fd->mu); - pi_new = polling_island_create(exec_ctx, fd, &error); - gpr_mu_lock(&fd->mu); - /* Need to reverify any assumptions made between the initial lock and - getting to this branch: if they've changed, we need to throw away our - work and figure things out again. */ - if (fd->polling_island != NULL) { - GRPC_POLLING_TRACE( - "pollset_add_fd: Raced creating new polling island. pi_new: %p " - "(fd: %d, pollset: %p)", - (void *)pi_new, fd->fd, (void *)pollset); - - /* No need to lock 'pi_new' here since this is a new polling island and - * no one has a reference to it yet */ - polling_island_remove_all_fds_locked(pi_new, true, &error); - - /* Ref and unref so that the polling island gets deleted during unref */ - PI_ADD_REF(pi_new, "dance_of_destruction"); - PI_UNREF(exec_ctx, pi_new, "dance_of_destruction"); - goto retry; + /* GPR_ASSERT(item->pi == bag->pi == NULL) */ + + /* If we are adding an fd to a bag (i.e pollset or pollset_set), then + * we need to do some extra work to make TSAN happy */ + if (item_type == POLL_OBJ_FD) { + /* Unlock before creating a new polling island: the polling island will + create a workqueue which creates a file descriptor, and holding an fd + lock here can eventually cause a loop to appear to TSAN (making it + unhappy). We don't think it's a real loop (there's an epoch point + where that loop possibility disappears), but the advantages of + keeping TSAN happy outweigh any performance advantage we might have + by keeping the lock held. */ + gpr_mu_unlock(&item->mu); + pi_new = polling_island_create(exec_ctx, FD_FROM_PO(item), &error); + gpr_mu_lock(&item->mu); + + /* Need to reverify any assumptions made between the initial lock and + getting to this branch: if they've changed, we need to throw away our + work and figure things out again. */ + if (item->pi != NULL) { + GRPC_POLLING_TRACE( + "add_poll_object: Raced creating new polling island. pi_new: %p " + "(fd: %d, %s: %p)", + (void *)pi_new, FD_FROM_PO(item)->fd, poll_obj_string(bag_type), + (void *)bag); + /* No need to lock 'pi_new' here since this is a new polling island + * and no one has a reference to it yet */ + polling_island_remove_all_fds_locked(pi_new, true, &error); + + /* Ref and unref so that the polling island gets deleted during unref + */ + PI_ADD_REF(pi_new, "dance_of_destruction"); + PI_UNREF(exec_ctx, pi_new, "dance_of_destruction"); + goto retry; + } } else { - GRPC_POLLING_TRACE( - "pollset_add_fd: Created new polling island. pi_new: %p (fd: %d, " - "pollset: %p)", - (void *)pi_new, fd->fd, (void *)pollset); + pi_new = polling_island_create(exec_ctx, NULL, &error); } + + GRPC_POLLING_TRACE( + "add_poll_object: Created new polling island. pi_new: %p (%s: %p, " + "%s: %p)", + (void *)pi_new, poll_obj_string(item_type), (void *)item, + poll_obj_string(bag_type), (void *)bag); + } else { + GRPC_POLLING_TRACE( + "add_poll_object: Same polling island. pi: %p (%s, %s)", + (void *)pi_new, poll_obj_string(item_type), + poll_obj_string(bag_type)); + } + } else if (item->pi == NULL) { + /* GPR_ASSERT(bag->pi != NULL) */ + /* Make pi_new point to latest pi*/ + pi_new = polling_island_lock(bag->pi); + + if (item_type == POLL_OBJ_FD) { + grpc_fd *fd = FD_FROM_PO(item); + polling_island_add_fds_locked(pi_new, &fd, 1, true, &error); } - } else if (fd->polling_island == NULL) { - pi_new = polling_island_lock(pollset->polling_island); - polling_island_add_fds_locked(pi_new, &fd, 1, true, &error); - gpr_mu_unlock(&pi_new->mu); + gpr_mu_unlock(&pi_new->mu); GRPC_POLLING_TRACE( - "pollset_add_fd: fd->pi was NULL. pi_new: %p (fd: %d, pollset: %p, " - "pollset->pi: %p)", - (void *)pi_new, fd->fd, (void *)pollset, - (void *)pollset->polling_island); - } else if (pollset->polling_island == NULL) { - pi_new = polling_island_lock(fd->polling_island); + "add_poll_obj: item->pi was NULL. pi_new: %p (item(%s): %p, " + "bag(%s): %p)", + (void *)pi_new, poll_obj_string(item_type), (void *)item, + poll_obj_string(bag_type), (void *)bag); + } else if (bag->pi == NULL) { + /* GPR_ASSERT(item->pi != NULL) */ + /* Make pi_new to point to latest pi */ + pi_new = polling_island_lock(item->pi); gpr_mu_unlock(&pi_new->mu); - GRPC_POLLING_TRACE( - "pollset_add_fd: pollset->pi was NULL. pi_new: %p (fd: %d, pollset: " - "%p, fd->pi: %p", - (void *)pi_new, fd->fd, (void *)pollset, (void *)fd->polling_island); + "add_poll_obj: bag->pi was NULL. pi_new: %p (item(%s): %p, " + "bag(%s): %p)", + (void *)pi_new, poll_obj_string(item_type), (void *)item, + poll_obj_string(bag_type), (void *)bag); } else { - pi_new = polling_island_merge(fd->polling_island, pollset->polling_island, - &error); + pi_new = polling_island_merge(item->pi, bag->pi, &error); GRPC_POLLING_TRACE( - "pollset_add_fd: polling islands merged. pi_new: %p (fd: %d, pollset: " - "%p, fd->pi: %p, pollset->pi: %p)", - (void *)pi_new, fd->fd, (void *)pollset, (void *)fd->polling_island, - (void *)pollset->polling_island); + "add_poll_obj: polling islands merged. pi_new: %p (item(%s): %p, " + "bag(%s): %p)", + (void *)pi_new, poll_obj_string(item_type), (void *)item, + poll_obj_string(bag_type), (void *)bag); } - /* At this point, pi_new is the polling island that both fd->polling_island - and pollset->polling_island must be pointing to */ + /* At this point, pi_new is the polling island that both item->pi and bag->pi + MUST be pointing to */ - if (fd->polling_island != pi_new) { - PI_ADD_REF(pi_new, "fd"); - if (fd->polling_island != NULL) { - PI_UNREF(exec_ctx, fd->polling_island, "fd"); + if (item->pi != pi_new) { + PI_ADD_REF(pi_new, poll_obj_string(item_type)); + if (item->pi != NULL) { + PI_UNREF(exec_ctx, item->pi, poll_obj_string(item_type)); } - fd->polling_island = pi_new; + item->pi = pi_new; } - if (pollset->polling_island != pi_new) { - PI_ADD_REF(pi_new, "ps"); - if (pollset->polling_island != NULL) { - PI_UNREF(exec_ctx, pollset->polling_island, "ps"); + if (bag->pi != pi_new) { + PI_ADD_REF(pi_new, poll_obj_string(bag_type)); + if (bag->pi != NULL) { + PI_UNREF(exec_ctx, bag->pi, poll_obj_string(bag_type)); } - pollset->polling_island = pi_new; + bag->pi = pi_new; } - gpr_mu_unlock(&fd->mu); - gpr_mu_unlock(&pollset->mu); + gpr_mu_unlock(&item->mu); + gpr_mu_unlock(&bag->mu); - GRPC_LOG_IF_ERROR("pollset_add_fd", error); + GRPC_LOG_IF_ERROR("add_poll_object", error); + GPR_TIMER_END("add_poll_object", 0); +} - GPR_TIMER_END("pollset_add_fd", 0); +static void pollset_add_fd(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset, + grpc_fd *fd) { + add_poll_object(exec_ctx, &pollset->po, POLL_OBJ_POLLSET, &fd->po, + POLL_OBJ_FD); } /******************************************************************************* @@ -1784,142 +1838,60 @@ retry: */ static grpc_pollset_set *pollset_set_create(void) { - grpc_pollset_set *pollset_set = gpr_malloc(sizeof(*pollset_set)); - memset(pollset_set, 0, sizeof(*pollset_set)); - gpr_mu_init(&pollset_set->mu); - return pollset_set; + grpc_pollset_set *pss = gpr_malloc(sizeof(*pss)); + gpr_mu_init(&pss->po.mu); + pss->po.pi = NULL; +#ifdef PO_DEBUG + pss->po.obj_type = POLL_OBJ_POLLSET_SET; +#endif + return pss; } -static void pollset_set_destroy(grpc_pollset_set *pollset_set) { - size_t i; - gpr_mu_destroy(&pollset_set->mu); - for (i = 0; i < pollset_set->fd_count; i++) { - GRPC_FD_UNREF(pollset_set->fds[i], "pollset_set"); +static void pollset_set_destroy(grpc_pollset_set *pss) { + gpr_mu_destroy(&pss->po.mu); + + if (pss->po.pi != NULL) { + grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; + PI_UNREF(&exec_ctx, pss->po.pi, "pss_destroy"); + grpc_exec_ctx_finish(&exec_ctx); } - gpr_free(pollset_set->pollsets); - gpr_free(pollset_set->pollset_sets); - gpr_free(pollset_set->fds); - gpr_free(pollset_set); + + gpr_free(pss); } -static void pollset_set_add_fd(grpc_exec_ctx *exec_ctx, - grpc_pollset_set *pollset_set, grpc_fd *fd) { - size_t i; - gpr_mu_lock(&pollset_set->mu); - if (pollset_set->fd_count == pollset_set->fd_capacity) { - pollset_set->fd_capacity = GPR_MAX(8, 2 * pollset_set->fd_capacity); - pollset_set->fds = gpr_realloc( - pollset_set->fds, pollset_set->fd_capacity * sizeof(*pollset_set->fds)); - } - GRPC_FD_REF(fd, "pollset_set"); - pollset_set->fds[pollset_set->fd_count++] = fd; - for (i = 0; i < pollset_set->pollset_count; i++) { - pollset_add_fd(exec_ctx, pollset_set->pollsets[i], fd); - } - for (i = 0; i < pollset_set->pollset_set_count; i++) { - pollset_set_add_fd(exec_ctx, pollset_set->pollset_sets[i], fd); - } - gpr_mu_unlock(&pollset_set->mu); +static void pollset_set_add_fd(grpc_exec_ctx *exec_ctx, grpc_pollset_set *pss, + grpc_fd *fd) { + add_poll_object(exec_ctx, &pss->po, POLL_OBJ_POLLSET_SET, &fd->po, + POLL_OBJ_FD); } -static void pollset_set_del_fd(grpc_exec_ctx *exec_ctx, - grpc_pollset_set *pollset_set, grpc_fd *fd) { - size_t i; - gpr_mu_lock(&pollset_set->mu); - for (i = 0; i < pollset_set->fd_count; i++) { - if (pollset_set->fds[i] == fd) { - pollset_set->fd_count--; - GPR_SWAP(grpc_fd *, pollset_set->fds[i], - pollset_set->fds[pollset_set->fd_count]); - GRPC_FD_UNREF(fd, "pollset_set"); - break; - } - } - for (i = 0; i < pollset_set->pollset_set_count; i++) { - pollset_set_del_fd(exec_ctx, pollset_set->pollset_sets[i], fd); - } - gpr_mu_unlock(&pollset_set->mu); +static void pollset_set_del_fd(grpc_exec_ctx *exec_ctx, grpc_pollset_set *pss, + grpc_fd *fd) { + /* Nothing to do */ } static void pollset_set_add_pollset(grpc_exec_ctx *exec_ctx, - grpc_pollset_set *pollset_set, - grpc_pollset *pollset) { - size_t i, j; - gpr_mu_lock(&pollset_set->mu); - if (pollset_set->pollset_count == pollset_set->pollset_capacity) { - pollset_set->pollset_capacity = - GPR_MAX(8, 2 * pollset_set->pollset_capacity); - pollset_set->pollsets = - gpr_realloc(pollset_set->pollsets, pollset_set->pollset_capacity * - sizeof(*pollset_set->pollsets)); - } - pollset_set->pollsets[pollset_set->pollset_count++] = pollset; - for (i = 0, j = 0; i < pollset_set->fd_count; i++) { - if (fd_is_orphaned(pollset_set->fds[i])) { - GRPC_FD_UNREF(pollset_set->fds[i], "pollset_set"); - } else { - pollset_add_fd(exec_ctx, pollset, pollset_set->fds[i]); - pollset_set->fds[j++] = pollset_set->fds[i]; - } - } - pollset_set->fd_count = j; - gpr_mu_unlock(&pollset_set->mu); + grpc_pollset_set *pss, grpc_pollset *ps) { + add_poll_object(exec_ctx, &pss->po, POLL_OBJ_POLLSET_SET, &ps->po, + POLL_OBJ_POLLSET); } static void pollset_set_del_pollset(grpc_exec_ctx *exec_ctx, - grpc_pollset_set *pollset_set, - grpc_pollset *pollset) { - size_t i; - gpr_mu_lock(&pollset_set->mu); - for (i = 0; i < pollset_set->pollset_count; i++) { - if (pollset_set->pollsets[i] == pollset) { - pollset_set->pollset_count--; - GPR_SWAP(grpc_pollset *, pollset_set->pollsets[i], - pollset_set->pollsets[pollset_set->pollset_count]); - break; - } - } - gpr_mu_unlock(&pollset_set->mu); + grpc_pollset_set *pss, grpc_pollset *ps) { + /* Nothing to do */ } static void pollset_set_add_pollset_set(grpc_exec_ctx *exec_ctx, grpc_pollset_set *bag, grpc_pollset_set *item) { - size_t i, j; - gpr_mu_lock(&bag->mu); - if (bag->pollset_set_count == bag->pollset_set_capacity) { - bag->pollset_set_capacity = GPR_MAX(8, 2 * bag->pollset_set_capacity); - bag->pollset_sets = - gpr_realloc(bag->pollset_sets, - bag->pollset_set_capacity * sizeof(*bag->pollset_sets)); - } - bag->pollset_sets[bag->pollset_set_count++] = item; - for (i = 0, j = 0; i < bag->fd_count; i++) { - if (fd_is_orphaned(bag->fds[i])) { - GRPC_FD_UNREF(bag->fds[i], "pollset_set"); - } else { - pollset_set_add_fd(exec_ctx, item, bag->fds[i]); - bag->fds[j++] = bag->fds[i]; - } - } - bag->fd_count = j; - gpr_mu_unlock(&bag->mu); + add_poll_object(exec_ctx, &bag->po, POLL_OBJ_POLLSET_SET, &item->po, + POLL_OBJ_POLLSET_SET); } static void pollset_set_del_pollset_set(grpc_exec_ctx *exec_ctx, grpc_pollset_set *bag, grpc_pollset_set *item) { - size_t i; - gpr_mu_lock(&bag->mu); - for (i = 0; i < bag->pollset_set_count; i++) { - if (bag->pollset_sets[i] == item) { - bag->pollset_set_count--; - GPR_SWAP(grpc_pollset_set *, bag->pollset_sets[i], - bag->pollset_sets[bag->pollset_set_count]); - break; - } - } - gpr_mu_unlock(&bag->mu); + /* Nothing to do */ } /* Test helper functions @@ -1927,9 +1899,9 @@ static void pollset_set_del_pollset_set(grpc_exec_ctx *exec_ctx, void *grpc_fd_get_polling_island(grpc_fd *fd) { polling_island *pi; - gpr_mu_lock(&fd->mu); - pi = fd->polling_island; - gpr_mu_unlock(&fd->mu); + gpr_mu_lock(&fd->po.mu); + pi = fd->po.pi; + gpr_mu_unlock(&fd->po.mu); return pi; } @@ -1937,9 +1909,9 @@ void *grpc_fd_get_polling_island(grpc_fd *fd) { void *grpc_pollset_get_polling_island(grpc_pollset *ps) { polling_island *pi; - gpr_mu_lock(&ps->mu); - pi = ps->polling_island; - gpr_mu_unlock(&ps->mu); + gpr_mu_lock(&ps->po.mu); + pi = ps->po.pi; + gpr_mu_unlock(&ps->po.mu); return pi; } @@ -2000,7 +1972,7 @@ static const grpc_event_engine_vtable vtable = { .workqueue_ref = workqueue_ref, .workqueue_unref = workqueue_unref, - .workqueue_enqueue = workqueue_enqueue, + .workqueue_scheduler = workqueue_scheduler, .shutdown_engine = shutdown_engine, }; diff --git a/src/core/lib/iomgr/ev_poll_posix.c b/src/core/lib/iomgr/ev_poll_posix.c index 21b28e5554..5bc5621443 100644 --- a/src/core/lib/iomgr/ev_poll_posix.c +++ b/src/core/lib/iomgr/ev_poll_posix.c @@ -397,7 +397,7 @@ static void close_fd_locked(grpc_exec_ctx *exec_ctx, grpc_fd *fd) { if (!fd->released) { close(fd->fd); } - grpc_exec_ctx_sched(exec_ctx, fd->on_done_closure, GRPC_ERROR_NONE, NULL); + grpc_closure_sched(exec_ctx, fd->on_done_closure, GRPC_ERROR_NONE); } static int fd_wrapped_fd(grpc_fd *fd) { @@ -457,16 +457,14 @@ static grpc_error *fd_shutdown_error(bool shutdown) { static void notify_on_locked(grpc_exec_ctx *exec_ctx, grpc_fd *fd, grpc_closure **st, grpc_closure *closure) { if (fd->shutdown) { - grpc_exec_ctx_sched(exec_ctx, closure, GRPC_ERROR_CREATE("FD shutdown"), - NULL); + grpc_closure_sched(exec_ctx, closure, GRPC_ERROR_CREATE("FD shutdown")); } else if (*st == CLOSURE_NOT_READY) { /* not ready ==> switch to a waiting state by setting the closure */ *st = closure; } else if (*st == CLOSURE_READY) { /* already ready ==> queue the closure to run immediately */ *st = CLOSURE_NOT_READY; - grpc_exec_ctx_sched(exec_ctx, closure, fd_shutdown_error(fd->shutdown), - NULL); + grpc_closure_sched(exec_ctx, closure, fd_shutdown_error(fd->shutdown)); maybe_wake_one_watcher_locked(fd); } else { /* upcallptr was set to a different closure. This is an error! */ @@ -489,7 +487,7 @@ static int set_ready_locked(grpc_exec_ctx *exec_ctx, grpc_fd *fd, return 0; } else { /* waiting ==> queue closure */ - grpc_exec_ctx_sched(exec_ctx, *st, fd_shutdown_error(fd->shutdown), NULL); + grpc_closure_sched(exec_ctx, *st, fd_shutdown_error(fd->shutdown)); *st = CLOSURE_NOT_READY; return 1; } @@ -852,7 +850,7 @@ static void finish_shutdown(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset) { GRPC_FD_UNREF(pollset->fds[i], "multipoller"); } pollset->fd_count = 0; - grpc_exec_ctx_sched(exec_ctx, pollset->shutdown_done, GRPC_ERROR_NONE, NULL); + grpc_closure_sched(exec_ctx, pollset->shutdown_done, GRPC_ERROR_NONE); } static void work_combine_error(grpc_error **composite, grpc_error *error) { @@ -901,7 +899,7 @@ static grpc_error *pollset_work(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset, if (!pollset_has_workers(pollset) && !grpc_closure_list_empty(pollset->idle_jobs)) { GPR_TIMER_MARK("pollset_work.idle_jobs", 0); - grpc_exec_ctx_enqueue_list(exec_ctx, &pollset->idle_jobs, NULL); + grpc_closure_list_sched(exec_ctx, &pollset->idle_jobs); goto done; } /* If we're shutting down then we don't execute any extended work */ @@ -1081,7 +1079,7 @@ static grpc_error *pollset_work(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset, * TODO(dklempner): Can we refactor the shutdown logic to avoid this? */ gpr_mu_lock(&pollset->mu); } else if (!grpc_closure_list_empty(pollset->idle_jobs)) { - grpc_exec_ctx_enqueue_list(exec_ctx, &pollset->idle_jobs, NULL); + grpc_closure_list_sched(exec_ctx, &pollset->idle_jobs); gpr_mu_unlock(&pollset->mu); grpc_exec_ctx_flush(exec_ctx); gpr_mu_lock(&pollset->mu); @@ -1100,7 +1098,7 @@ static void pollset_shutdown(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset, pollset->shutdown_done = closure; pollset_kick(pollset, GRPC_POLLSET_KICK_BROADCAST); if (!pollset_has_workers(pollset)) { - grpc_exec_ctx_enqueue_list(exec_ctx, &pollset->idle_jobs, NULL); + grpc_closure_list_sched(exec_ctx, &pollset->idle_jobs); } if (!pollset->called_shutdown && !pollset_has_workers(pollset)) { pollset->called_shutdown = 1; @@ -1288,10 +1286,8 @@ static void workqueue_unref(grpc_exec_ctx *exec_ctx, grpc_workqueue *workqueue) {} #endif -static void workqueue_enqueue(grpc_exec_ctx *exec_ctx, - grpc_workqueue *workqueue, grpc_closure *closure, - grpc_error *error) { - grpc_exec_ctx_sched(exec_ctx, closure, error, NULL); +static grpc_closure_scheduler *workqueue_scheduler(grpc_workqueue *workqueue) { + return grpc_schedule_on_exec_ctx; } /******************************************************************************* @@ -1534,7 +1530,7 @@ static const grpc_event_engine_vtable vtable = { .workqueue_ref = workqueue_ref, .workqueue_unref = workqueue_unref, - .workqueue_enqueue = workqueue_enqueue, + .workqueue_scheduler = workqueue_scheduler, .shutdown_engine = shutdown_engine, }; diff --git a/src/core/lib/iomgr/ev_posix.c b/src/core/lib/iomgr/ev_posix.c index ab139895fd..2975d619e1 100644 --- a/src/core/lib/iomgr/ev_posix.c +++ b/src/core/lib/iomgr/ev_posix.c @@ -275,9 +275,8 @@ void grpc_workqueue_unref(grpc_exec_ctx *exec_ctx, grpc_workqueue *workqueue) { } #endif -void grpc_workqueue_enqueue(grpc_exec_ctx *exec_ctx, grpc_workqueue *workqueue, - grpc_closure *closure, grpc_error *error) { - g_event_engine->workqueue_enqueue(exec_ctx, workqueue, closure, error); +grpc_closure_scheduler *grpc_workqueue_scheduler(grpc_workqueue *workqueue) { + return g_event_engine->workqueue_scheduler(workqueue); } #endif // GRPC_POSIX_SOCKET diff --git a/src/core/lib/iomgr/ev_posix.h b/src/core/lib/iomgr/ev_posix.h index cb5832539d..1068a4bad5 100644 --- a/src/core/lib/iomgr/ev_posix.h +++ b/src/core/lib/iomgr/ev_posix.h @@ -106,8 +106,7 @@ typedef struct grpc_event_engine_vtable { grpc_workqueue *(*workqueue_ref)(grpc_workqueue *workqueue); void (*workqueue_unref)(grpc_exec_ctx *exec_ctx, grpc_workqueue *workqueue); #endif - void (*workqueue_enqueue)(grpc_exec_ctx *exec_ctx, grpc_workqueue *workqueue, - grpc_closure *closure, grpc_error *error); + grpc_closure_scheduler *(*workqueue_scheduler)(grpc_workqueue *workqueue); } grpc_event_engine_vtable; void grpc_event_engine_init(void); diff --git a/src/core/lib/iomgr/exec_ctx.c b/src/core/lib/iomgr/exec_ctx.c index 604713e578..6aa788f8e5 100644 --- a/src/core/lib/iomgr/exec_ctx.c +++ b/src/core/lib/iomgr/exec_ctx.c @@ -57,7 +57,6 @@ bool grpc_always_ready_to_finish(grpc_exec_ctx *exec_ctx, void *arg_ignored) { return true; } -#ifndef GRPC_EXECUTION_CONTEXT_SANITIZER bool grpc_exec_ctx_flush(grpc_exec_ctx *exec_ctx) { bool did_something = 0; GPR_TIMER_BEGIN("grpc_exec_ctx_flush", 0); @@ -67,8 +66,10 @@ bool grpc_exec_ctx_flush(grpc_exec_ctx *exec_ctx) { exec_ctx->closure_list.head = exec_ctx->closure_list.tail = NULL; while (c != NULL) { grpc_closure *next = c->next_data.next; + grpc_error *error = c->error_data.error; did_something = true; - grpc_closure_run(exec_ctx, c, c->error_data.error); + c->cb(exec_ctx, c->cb_arg, error); + GRPC_ERROR_UNREF(error); c = next; } } else if (!grpc_combiner_continue_exec_ctx(exec_ctx)) { @@ -76,30 +77,6 @@ bool grpc_exec_ctx_flush(grpc_exec_ctx *exec_ctx) { } } GPR_ASSERT(exec_ctx->active_combiner == NULL); - if (exec_ctx->stealing_from_workqueue != NULL) { - if (grpc_exec_ctx_ready_to_finish(exec_ctx)) { - grpc_workqueue_enqueue(exec_ctx, exec_ctx->stealing_from_workqueue, - exec_ctx->stolen_closure, - exec_ctx->stolen_closure->error_data.error); - GRPC_WORKQUEUE_UNREF(exec_ctx, exec_ctx->stealing_from_workqueue, - "exec_ctx_sched"); - exec_ctx->stealing_from_workqueue = NULL; - exec_ctx->stolen_closure = NULL; - } else { - grpc_closure *c = exec_ctx->stolen_closure; - GRPC_WORKQUEUE_UNREF(exec_ctx, exec_ctx->stealing_from_workqueue, - "exec_ctx_sched"); - exec_ctx->stealing_from_workqueue = NULL; - exec_ctx->stolen_closure = NULL; - grpc_error *error = c->error_data.error; - GPR_TIMER_BEGIN("grpc_exec_ctx_flush.stolen_cb", 0); - c->cb(exec_ctx, c->cb_arg, error); - GRPC_ERROR_UNREF(error); - GPR_TIMER_END("grpc_exec_ctx_flush.stolen_cb", 0); - grpc_exec_ctx_flush(exec_ctx); - did_something = true; - } - } GPR_TIMER_END("grpc_exec_ctx_flush", 0); return did_something; } @@ -109,104 +86,21 @@ void grpc_exec_ctx_finish(grpc_exec_ctx *exec_ctx) { grpc_exec_ctx_flush(exec_ctx); } -void grpc_exec_ctx_sched(grpc_exec_ctx *exec_ctx, grpc_closure *closure, - grpc_error *error, - grpc_workqueue *offload_target_or_null) { - GPR_TIMER_BEGIN("grpc_exec_ctx_sched", 0); - if (offload_target_or_null == NULL) { - grpc_closure_list_append(&exec_ctx->closure_list, closure, error); - } else if (exec_ctx->stealing_from_workqueue == NULL) { - exec_ctx->stealing_from_workqueue = offload_target_or_null; - closure->error_data.error = error; - exec_ctx->stolen_closure = closure; - } else if (exec_ctx->stealing_from_workqueue != offload_target_or_null) { - grpc_workqueue_enqueue(exec_ctx, offload_target_or_null, closure, error); - GRPC_WORKQUEUE_UNREF(exec_ctx, offload_target_or_null, "exec_ctx_sched"); - } else { /* stealing_from_workqueue == offload_target_or_null */ - grpc_workqueue_enqueue(exec_ctx, offload_target_or_null, - exec_ctx->stolen_closure, - exec_ctx->stolen_closure->error_data.error); - closure->error_data.error = error; - exec_ctx->stolen_closure = closure; - GRPC_WORKQUEUE_UNREF(exec_ctx, offload_target_or_null, "exec_ctx_sched"); - } - GPR_TIMER_END("grpc_exec_ctx_sched", 0); +static void exec_ctx_run(grpc_exec_ctx *exec_ctx, grpc_closure *closure, + grpc_error *error) { + closure->cb(exec_ctx, closure->cb_arg, error); + GRPC_ERROR_UNREF(error); } -void grpc_exec_ctx_enqueue_list(grpc_exec_ctx *exec_ctx, - grpc_closure_list *list, - grpc_workqueue *offload_target_or_null) { - grpc_closure_list_move(list, &exec_ctx->closure_list); +static void exec_ctx_sched(grpc_exec_ctx *exec_ctx, grpc_closure *closure, + grpc_error *error) { + grpc_closure_list_append(&exec_ctx->closure_list, closure, error); } void grpc_exec_ctx_global_init(void) {} void grpc_exec_ctx_global_shutdown(void) {} -#else -static gpr_mu g_mu; -static gpr_cv g_cv; -static int g_threads = 0; - -static void run_closure(void *arg) { - grpc_closure *closure = arg; - grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; - closure->cb(&exec_ctx, closure->cb_arg, (closure->final_data & 1) != 0); - grpc_exec_ctx_finish(&exec_ctx); - gpr_mu_lock(&g_mu); - if (--g_threads == 0) { - gpr_cv_signal(&g_cv); - } - gpr_mu_unlock(&g_mu); -} - -static void start_closure(grpc_closure *closure) { - gpr_thd_id id; - gpr_mu_lock(&g_mu); - g_threads++; - gpr_mu_unlock(&g_mu); - gpr_thd_new(&id, run_closure, closure, NULL); -} - -bool grpc_exec_ctx_flush(grpc_exec_ctx *exec_ctx) { return false; } - -void grpc_exec_ctx_finish(grpc_exec_ctx *exec_ctx) {} -void grpc_exec_ctx_enqueue(grpc_exec_ctx *exec_ctx, grpc_closure *closure, - bool success, - grpc_workqueue *offload_target_or_null) { - GPR_ASSERT(offload_target_or_null == NULL); - if (closure == NULL) return; - closure->final_data = success; - start_closure(closure); -} - -void grpc_exec_ctx_enqueue_list(grpc_exec_ctx *exec_ctx, - grpc_closure_list *list, - grpc_workqueue *offload_target_or_null) { - GPR_ASSERT(offload_target_or_null == NULL); - if (list == NULL) return; - grpc_closure *p = list->head; - while (p) { - grpc_closure *start = p; - p = grpc_closure_next(start); - start_closure(start); - } - grpc_closure_list r = GRPC_CLOSURE_LIST_INIT; - *list = r; -} - -void grpc_exec_ctx_global_init(void) { - gpr_mu_init(&g_mu); - gpr_cv_init(&g_cv); -} - -void grpc_exec_ctx_global_shutdown(void) { - gpr_mu_lock(&g_mu); - while (g_threads != 0) { - gpr_cv_wait(&g_cv, &g_mu, gpr_inf_future(GPR_CLOCK_REALTIME)); - } - gpr_mu_unlock(&g_mu); - - gpr_mu_destroy(&g_mu); - gpr_cv_destroy(&g_cv); -} -#endif +static const grpc_closure_scheduler_vtable exec_ctx_scheduler_vtable = { + exec_ctx_run, exec_ctx_sched}; +static grpc_closure_scheduler exec_ctx_scheduler = {&exec_ctx_scheduler_vtable}; +grpc_closure_scheduler *grpc_schedule_on_exec_ctx = &exec_ctx_scheduler; diff --git a/src/core/lib/iomgr/exec_ctx.h b/src/core/lib/iomgr/exec_ctx.h index 7e50cb9825..e566f1b3e8 100644 --- a/src/core/lib/iomgr/exec_ctx.h +++ b/src/core/lib/iomgr/exec_ctx.h @@ -66,17 +66,6 @@ typedef struct grpc_combiner grpc_combiner; #ifndef GRPC_EXECUTION_CONTEXT_SANITIZER struct grpc_exec_ctx { grpc_closure_list closure_list; - /** The workqueue we're stealing work from. - As items are queued to the execution context, we try to steal one - workqueue item and execute it inline (assuming the exec_ctx is not - finished) - doing so does not invalidate the workqueue's contract, and - provides a small latency win in cases where we get a hit */ - grpc_workqueue *stealing_from_workqueue; - /** The workqueue item that was stolen from the workqueue above. When new - items are scheduled to be offloaded to that workqueue, we need to update - this like a 1-deep fifo to maintain the invariant that workqueue items - queued by one thread are started in order */ - grpc_closure *stolen_closure; /** currently active combiner: updated only via combiner.c */ grpc_combiner *active_combiner; /** last active combiner in the active combiner list */ @@ -89,10 +78,7 @@ struct grpc_exec_ctx { /* initializer for grpc_exec_ctx: prefer to use GRPC_EXEC_CTX_INIT whenever possible */ #define GRPC_EXEC_CTX_INIT_WITH_FINISH_CHECK(finish_check, finish_check_arg) \ - { \ - GRPC_CLOSURE_LIST_INIT, NULL, NULL, NULL, NULL, false, finish_check_arg, \ - finish_check \ - } + { GRPC_CLOSURE_LIST_INIT, NULL, NULL, false, finish_check_arg, finish_check } #else struct grpc_exec_ctx { bool cached_ready_to_finish; @@ -108,6 +94,8 @@ struct grpc_exec_ctx { #define GRPC_EXEC_CTX_INIT \ GRPC_EXEC_CTX_INIT_WITH_FINISH_CHECK(grpc_always_ready_to_finish, NULL) +extern grpc_closure_scheduler *grpc_schedule_on_exec_ctx; + /** Flush any work that has been enqueued onto this grpc_exec_ctx. * Caller must guarantee that no interfering locks are held. * Returns true if work was performed, false otherwise. */ @@ -115,14 +103,6 @@ bool grpc_exec_ctx_flush(grpc_exec_ctx *exec_ctx); /** Finish any pending work for a grpc_exec_ctx. Must be called before * the instance is destroyed, or work may be lost. */ void grpc_exec_ctx_finish(grpc_exec_ctx *exec_ctx); -/** Add a closure to be executed in the future. - If \a offload_target_or_null is NULL, the closure will be executed at the - next exec_ctx.{finish,flush} point. - If \a offload_target_or_null is non-NULL, the closure will be scheduled - against the workqueue, and a reference to the workqueue will be consumed. */ -void grpc_exec_ctx_sched(grpc_exec_ctx *exec_ctx, grpc_closure *closure, - grpc_error *error, - grpc_workqueue *offload_target_or_null); /** Returns true if we'd like to leave this execution context as soon as possible: useful for deciding whether to do something more or not depending on outside context */ @@ -131,11 +111,6 @@ bool grpc_exec_ctx_ready_to_finish(grpc_exec_ctx *exec_ctx); bool grpc_never_ready_to_finish(grpc_exec_ctx *exec_ctx, void *arg_ignored); /** A finish check that is always ready to finish */ bool grpc_always_ready_to_finish(grpc_exec_ctx *exec_ctx, void *arg_ignored); -/** Add a list of closures to be executed at the next flush/finish point. - * Leaves \a list empty. */ -void grpc_exec_ctx_enqueue_list(grpc_exec_ctx *exec_ctx, - grpc_closure_list *list, - grpc_workqueue *offload_target_or_null); void grpc_exec_ctx_global_init(void); diff --git a/src/core/lib/iomgr/executor.c b/src/core/lib/iomgr/executor.c index 8d7535d6fe..1342a28d8d 100644 --- a/src/core/lib/iomgr/executor.c +++ b/src/core/lib/iomgr/executor.c @@ -77,10 +77,18 @@ static void closure_exec_thread_func(void *ignored) { gpr_mu_unlock(&g_executor.mu); break; } else { - grpc_exec_ctx_enqueue_list(&exec_ctx, &g_executor.closures, NULL); + grpc_closure *c = g_executor.closures.head; + grpc_closure_list_init(&g_executor.closures); + gpr_mu_unlock(&g_executor.mu); + while (c != NULL) { + grpc_closure *next = c->next_data.next; + grpc_error *error = c->error_data.error; + c->cb(&exec_ctx, c->cb_arg, error); + GRPC_ERROR_UNREF(error); + c = next; + } + grpc_exec_ctx_flush(&exec_ctx); } - gpr_mu_unlock(&g_executor.mu); - grpc_exec_ctx_flush(&exec_ctx); } grpc_exec_ctx_finish(&exec_ctx); } @@ -112,7 +120,8 @@ static void maybe_spawn_locked() { g_executor.pending_join = 1; } -void grpc_executor_push(grpc_closure *closure, grpc_error *error) { +static void executor_push(grpc_exec_ctx *exec_ctx, grpc_closure *closure, + grpc_error *error) { gpr_mu_lock(&g_executor.mu); if (g_executor.shutting_down == 0) { grpc_closure_list_append(&g_executor.closures, closure, error); @@ -133,7 +142,15 @@ void grpc_executor_shutdown() { * list below because we aren't accepting new work */ /* Execute pending callbacks, some may be performing cleanups */ - grpc_exec_ctx_enqueue_list(&exec_ctx, &g_executor.closures, NULL); + grpc_closure *c = g_executor.closures.head; + grpc_closure_list_init(&g_executor.closures); + while (c != NULL) { + grpc_closure *next = c->next_data.next; + grpc_error *error = c->error_data.error; + c->cb(&exec_ctx, c->cb_arg, error); + GRPC_ERROR_UNREF(error); + c = next; + } grpc_exec_ctx_finish(&exec_ctx); GPR_ASSERT(grpc_closure_list_empty(g_executor.closures)); if (pending_join) { @@ -141,3 +158,8 @@ void grpc_executor_shutdown() { } gpr_mu_destroy(&g_executor.mu); } + +static const grpc_closure_scheduler_vtable executor_vtable = {executor_push, + executor_push}; +static grpc_closure_scheduler executor_scheduler = {&executor_vtable}; +grpc_closure_scheduler *grpc_executor_scheduler = &executor_scheduler; diff --git a/src/core/lib/iomgr/executor.h b/src/core/lib/iomgr/executor.h index da9dcd07d0..53f3b6d441 100644 --- a/src/core/lib/iomgr/executor.h +++ b/src/core/lib/iomgr/executor.h @@ -43,9 +43,7 @@ * non-blocking solution available. */ void grpc_executor_init(); -/** Enqueue \a closure for its eventual execution of \a f(arg) on a separate - * thread */ -void grpc_executor_push(grpc_closure *closure, grpc_error *error); +extern grpc_closure_scheduler *grpc_executor_scheduler; /** Shutdown the executor, running all pending work as part of the call */ void grpc_executor_shutdown(); diff --git a/src/core/lib/iomgr/pollset_uv.c b/src/core/lib/iomgr/pollset_uv.c index 3a74b842b6..ed3edeee94 100644 --- a/src/core/lib/iomgr/pollset_uv.c +++ b/src/core/lib/iomgr/pollset_uv.c @@ -83,7 +83,7 @@ void grpc_pollset_shutdown(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset, // Drain any pending UV callbacks without blocking uv_run(uv_default_loop(), UV_RUN_NOWAIT); } - grpc_exec_ctx_sched(exec_ctx, closure, GRPC_ERROR_NONE, NULL); + grpc_closure_sched(exec_ctx, closure, GRPC_ERROR_NONE); } void grpc_pollset_destroy(grpc_pollset *pollset) { diff --git a/src/core/lib/iomgr/pollset_windows.c b/src/core/lib/iomgr/pollset_windows.c index 5540303e49..2a45e708df 100644 --- a/src/core/lib/iomgr/pollset_windows.c +++ b/src/core/lib/iomgr/pollset_windows.c @@ -109,7 +109,7 @@ void grpc_pollset_shutdown(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset, pollset->shutting_down = 1; grpc_pollset_kick(pollset, GRPC_POLLSET_KICK_BROADCAST); if (!pollset->is_iocp_worker) { - grpc_exec_ctx_sched(exec_ctx, closure, GRPC_ERROR_NONE, NULL); + grpc_closure_sched(exec_ctx, closure, GRPC_ERROR_NONE); } else { pollset->on_shutdown = closure; } @@ -167,8 +167,7 @@ grpc_error *grpc_pollset_work(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset, } if (pollset->shutting_down && pollset->on_shutdown != NULL) { - grpc_exec_ctx_sched(exec_ctx, pollset->on_shutdown, GRPC_ERROR_NONE, - NULL); + grpc_closure_sched(exec_ctx, pollset->on_shutdown, GRPC_ERROR_NONE); pollset->on_shutdown = NULL; } goto done; diff --git a/src/core/lib/iomgr/resolve_address.h b/src/core/lib/iomgr/resolve_address.h index 275924448a..e03d16fa4e 100644 --- a/src/core/lib/iomgr/resolve_address.h +++ b/src/core/lib/iomgr/resolve_address.h @@ -36,6 +36,7 @@ #include <stddef.h> #include "src/core/lib/iomgr/exec_ctx.h" +#include "src/core/lib/iomgr/pollset_set.h" #define GRPC_MAX_SOCKADDR_SIZE 128 @@ -54,6 +55,7 @@ typedef struct { /* TODO(ctiller): add a timeout here */ extern void (*grpc_resolve_address)(grpc_exec_ctx *exec_ctx, const char *addr, const char *default_port, + grpc_pollset_set *interested_parties, grpc_closure *on_done, grpc_resolved_addresses **addresses); /* Destroy resolved addresses */ diff --git a/src/core/lib/iomgr/resolve_address_posix.c b/src/core/lib/iomgr/resolve_address_posix.c index de791b2b67..50e470d149 100644 --- a/src/core/lib/iomgr/resolve_address_posix.c +++ b/src/core/lib/iomgr/resolve_address_posix.c @@ -163,10 +163,9 @@ typedef struct { static void do_request_thread(grpc_exec_ctx *exec_ctx, void *rp, grpc_error *error) { request *r = rp; - grpc_exec_ctx_sched( + grpc_closure_sched( exec_ctx, r->on_done, - grpc_blocking_resolve_address(r->name, r->default_port, r->addrs_out), - NULL); + grpc_blocking_resolve_address(r->name, r->default_port, r->addrs_out)); gpr_free(r->name); gpr_free(r->default_port); gpr_free(r); @@ -181,20 +180,22 @@ void grpc_resolved_addresses_destroy(grpc_resolved_addresses *addrs) { static void resolve_address_impl(grpc_exec_ctx *exec_ctx, const char *name, const char *default_port, + grpc_pollset_set *interested_parties, grpc_closure *on_done, grpc_resolved_addresses **addrs) { request *r = gpr_malloc(sizeof(request)); - grpc_closure_init(&r->request_closure, do_request_thread, r); + grpc_closure_init(&r->request_closure, do_request_thread, r, + grpc_executor_scheduler); r->name = gpr_strdup(name); r->default_port = gpr_strdup(default_port); r->on_done = on_done; r->addrs_out = addrs; - grpc_executor_push(&r->request_closure, GRPC_ERROR_NONE); + grpc_closure_sched(exec_ctx, &r->request_closure, GRPC_ERROR_NONE); } -void (*grpc_resolve_address)(grpc_exec_ctx *exec_ctx, const char *name, - const char *default_port, grpc_closure *on_done, - grpc_resolved_addresses **addrs) = - resolve_address_impl; +void (*grpc_resolve_address)( + grpc_exec_ctx *exec_ctx, const char *name, const char *default_port, + grpc_pollset_set *interested_parties, grpc_closure *on_done, + grpc_resolved_addresses **addrs) = resolve_address_impl; #endif diff --git a/src/core/lib/iomgr/resolve_address_uv.c b/src/core/lib/iomgr/resolve_address_uv.c index b8295acfa1..9b5f3209f0 100644 --- a/src/core/lib/iomgr/resolve_address_uv.c +++ b/src/core/lib/iomgr/resolve_address_uv.c @@ -98,7 +98,7 @@ static void getaddrinfo_callback(uv_getaddrinfo_t *req, int status, grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; grpc_error *error; error = handle_addrinfo_result(status, res, r->addresses); - grpc_exec_ctx_sched(&exec_ctx, r->on_done, error, NULL); + grpc_closure_sched(&exec_ctx, r->on_done, error); grpc_exec_ctx_finish(&exec_ctx); gpr_free(r->hints); @@ -181,6 +181,7 @@ void grpc_resolved_addresses_destroy(grpc_resolved_addresses *addrs) { static void resolve_address_impl(grpc_exec_ctx *exec_ctx, const char *name, const char *default_port, + grpc_pollset_set *interested_parties, grpc_closure *on_done, grpc_resolved_addresses **addrs) { uv_getaddrinfo_t *req; @@ -192,7 +193,7 @@ static void resolve_address_impl(grpc_exec_ctx *exec_ctx, const char *name, int s; err = try_split_host_port(name, default_port, &host, &port); if (err != GRPC_ERROR_NONE) { - grpc_exec_ctx_sched(exec_ctx, on_done, err, NULL); + grpc_closure_sched(exec_ctx, on_done, err); return; } r = gpr_malloc(sizeof(request)); @@ -216,16 +217,16 @@ static void resolve_address_impl(grpc_exec_ctx *exec_ctx, const char *name, *addrs = NULL; err = GRPC_ERROR_CREATE("getaddrinfo failed"); err = grpc_error_set_str(err, GRPC_ERROR_STR_OS_ERROR, uv_strerror(s)); - grpc_exec_ctx_sched(exec_ctx, on_done, err, NULL); + grpc_closure_sched(exec_ctx, on_done, err); gpr_free(r); gpr_free(req); gpr_free(hints); } } -void (*grpc_resolve_address)(grpc_exec_ctx *exec_ctx, const char *name, - const char *default_port, grpc_closure *on_done, - grpc_resolved_addresses **addrs) = - resolve_address_impl; +void (*grpc_resolve_address)( + grpc_exec_ctx *exec_ctx, const char *name, const char *default_port, + grpc_pollset_set *interested_parties, grpc_closure *on_done, + grpc_resolved_addresses **addrs) = resolve_address_impl; #endif /* GRPC_UV */ diff --git a/src/core/lib/iomgr/resolve_address_windows.c b/src/core/lib/iomgr/resolve_address_windows.c index e139293c03..2439ce3cb7 100644 --- a/src/core/lib/iomgr/resolve_address_windows.c +++ b/src/core/lib/iomgr/resolve_address_windows.c @@ -154,7 +154,7 @@ static void do_request_thread(grpc_exec_ctx *exec_ctx, void *rp, } else { GRPC_ERROR_REF(error); } - grpc_exec_ctx_sched(exec_ctx, r->on_done, error, NULL); + grpc_closure_sched(exec_ctx, r->on_done, error); gpr_free(r->name); gpr_free(r->default_port); gpr_free(r); @@ -169,20 +169,22 @@ void grpc_resolved_addresses_destroy(grpc_resolved_addresses *addrs) { static void resolve_address_impl(grpc_exec_ctx *exec_ctx, const char *name, const char *default_port, + grpc_pollset_set *interested_parties, grpc_closure *on_done, grpc_resolved_addresses **addresses) { request *r = gpr_malloc(sizeof(request)); - grpc_closure_init(&r->request_closure, do_request_thread, r); + grpc_closure_init(&r->request_closure, do_request_thread, r, + grpc_executor_scheduler); r->name = gpr_strdup(name); r->default_port = gpr_strdup(default_port); r->on_done = on_done; r->addresses = addresses; - grpc_executor_push(&r->request_closure, GRPC_ERROR_NONE); + grpc_closure_sched(exec_ctx, &r->request_closure, GRPC_ERROR_NONE); } -void (*grpc_resolve_address)(grpc_exec_ctx *exec_ctx, const char *name, - const char *default_port, grpc_closure *on_done, - grpc_resolved_addresses **addresses) = - resolve_address_impl; +void (*grpc_resolve_address)( + grpc_exec_ctx *exec_ctx, const char *name, const char *default_port, + grpc_pollset_set *interested_parties, grpc_closure *on_done, + grpc_resolved_addresses **addresses) = resolve_address_impl; #endif diff --git a/src/core/lib/iomgr/resource_quota.c b/src/core/lib/iomgr/resource_quota.c index 213d29600c..8db539edfb 100644 --- a/src/core/lib/iomgr/resource_quota.c +++ b/src/core/lib/iomgr/resource_quota.c @@ -265,9 +265,8 @@ static void rq_step_sched(grpc_exec_ctx *exec_ctx, if (resource_quota->step_scheduled) return; resource_quota->step_scheduled = true; grpc_resource_quota_internal_ref(resource_quota); - grpc_combiner_execute_finally(exec_ctx, resource_quota->combiner, - &resource_quota->rq_step_closure, - GRPC_ERROR_NONE, false); + grpc_closure_sched(exec_ctx, &resource_quota->rq_step_closure, + GRPC_ERROR_NONE); } /* returns true if all allocations are completed */ @@ -294,7 +293,7 @@ static bool rq_alloc(grpc_exec_ctx *exec_ctx, } if (resource_user->free_pool >= 0) { resource_user->allocating = false; - grpc_exec_ctx_enqueue_list(exec_ctx, &resource_user->on_allocated, NULL); + grpc_closure_list_sched(exec_ctx, &resource_user->on_allocated); gpr_mu_unlock(&resource_user->mu); } else { rulist_add_head(resource_user, GRPC_RULIST_AWAITING_ALLOCATION); @@ -439,7 +438,7 @@ static bool ru_post_reclaimer(grpc_exec_ctx *exec_ctx, resource_user->new_reclaimers[destructive] = NULL; GPR_ASSERT(resource_user->reclaimers[destructive] == NULL); if (gpr_atm_acq_load(&resource_user->shutdown) > 0) { - grpc_exec_ctx_sched(exec_ctx, closure, GRPC_ERROR_CANCELLED, NULL); + grpc_closure_sched(exec_ctx, closure, GRPC_ERROR_CANCELLED); return false; } resource_user->reclaimers[destructive] = closure; @@ -480,10 +479,10 @@ static void ru_post_destructive_reclaimer(grpc_exec_ctx *exec_ctx, void *ru, static void ru_shutdown(grpc_exec_ctx *exec_ctx, void *ru, grpc_error *error) { grpc_resource_user *resource_user = ru; - grpc_exec_ctx_sched(exec_ctx, resource_user->reclaimers[0], - GRPC_ERROR_CANCELLED, NULL); - grpc_exec_ctx_sched(exec_ctx, resource_user->reclaimers[1], - GRPC_ERROR_CANCELLED, NULL); + grpc_closure_sched(exec_ctx, resource_user->reclaimers[0], + GRPC_ERROR_CANCELLED); + grpc_closure_sched(exec_ctx, resource_user->reclaimers[1], + GRPC_ERROR_CANCELLED); resource_user->reclaimers[0] = NULL; resource_user->reclaimers[1] = NULL; rulist_remove(resource_user, GRPC_RULIST_RECLAIMER_BENIGN); @@ -496,10 +495,10 @@ static void ru_destroy(grpc_exec_ctx *exec_ctx, void *ru, grpc_error *error) { for (int i = 0; i < GRPC_RULIST_COUNT; i++) { rulist_remove(resource_user, (grpc_rulist)i); } - grpc_exec_ctx_sched(exec_ctx, resource_user->reclaimers[0], - GRPC_ERROR_CANCELLED, NULL); - grpc_exec_ctx_sched(exec_ctx, resource_user->reclaimers[1], - GRPC_ERROR_CANCELLED, NULL); + grpc_closure_sched(exec_ctx, resource_user->reclaimers[0], + GRPC_ERROR_CANCELLED); + grpc_closure_sched(exec_ctx, resource_user->reclaimers[1], + GRPC_ERROR_CANCELLED); if (resource_user->free_pool != 0) { resource_user->resource_quota->free_pool += resource_user->free_pool; rq_step_sched(exec_ctx, resource_user->resource_quota); @@ -571,9 +570,12 @@ grpc_resource_quota *grpc_resource_quota_create(const char *name) { gpr_asprintf(&resource_quota->name, "anonymous_pool_%" PRIxPTR, (intptr_t)resource_quota); } - grpc_closure_init(&resource_quota->rq_step_closure, rq_step, resource_quota); + grpc_closure_init( + &resource_quota->rq_step_closure, rq_step, resource_quota, + grpc_combiner_finally_scheduler(resource_quota->combiner, true)); grpc_closure_init(&resource_quota->rq_reclamation_done_closure, - rq_reclamation_done, resource_quota); + rq_reclamation_done, resource_quota, + grpc_combiner_scheduler(resource_quota->combiner, false)); for (int i = 0; i < GRPC_RULIST_COUNT; i++) { resource_quota->roots[i] = NULL; } @@ -614,9 +616,8 @@ void grpc_resource_quota_resize(grpc_resource_quota *resource_quota, rq_resize_args *a = gpr_malloc(sizeof(*a)); a->resource_quota = grpc_resource_quota_internal_ref(resource_quota); a->size = (int64_t)size; - grpc_closure_init(&a->closure, rq_resize, a); - grpc_combiner_execute(&exec_ctx, resource_quota->combiner, &a->closure, - GRPC_ERROR_NONE, false); + grpc_closure_init(&a->closure, rq_resize, a, grpc_schedule_on_exec_ctx); + grpc_closure_sched(&exec_ctx, &a->closure, GRPC_ERROR_NONE); grpc_exec_ctx_finish(&exec_ctx); } @@ -663,15 +664,19 @@ grpc_resource_user *grpc_resource_user_create( resource_user->resource_quota = grpc_resource_quota_internal_ref(resource_quota); grpc_closure_init(&resource_user->allocate_closure, &ru_allocate, - resource_user); + resource_user, + grpc_combiner_scheduler(resource_quota->combiner, false)); grpc_closure_init(&resource_user->add_to_free_pool_closure, - &ru_add_to_free_pool, resource_user); + &ru_add_to_free_pool, resource_user, + grpc_combiner_scheduler(resource_quota->combiner, false)); grpc_closure_init(&resource_user->post_reclaimer_closure[0], - &ru_post_benign_reclaimer, resource_user); + &ru_post_benign_reclaimer, resource_user, + grpc_combiner_scheduler(resource_quota->combiner, false)); grpc_closure_init(&resource_user->post_reclaimer_closure[1], - &ru_post_destructive_reclaimer, resource_user); - grpc_closure_init(&resource_user->destroy_closure, &ru_destroy, - resource_user); + &ru_post_destructive_reclaimer, resource_user, + grpc_combiner_scheduler(resource_quota->combiner, false)); + grpc_closure_init(&resource_user->destroy_closure, &ru_destroy, resource_user, + grpc_combiner_scheduler(resource_quota->combiner, false)); gpr_mu_init(&resource_user->mu); gpr_atm_rel_store(&resource_user->refs, 1); gpr_atm_rel_store(&resource_user->shutdown, 0); @@ -706,9 +711,8 @@ static void ru_unref_by(grpc_exec_ctx *exec_ctx, gpr_atm old = gpr_atm_full_fetch_add(&resource_user->refs, -amount); GPR_ASSERT(old >= amount); if (old == amount) { - grpc_combiner_execute(exec_ctx, resource_user->resource_quota->combiner, - &resource_user->destroy_closure, GRPC_ERROR_NONE, - false); + grpc_closure_sched(exec_ctx, &resource_user->destroy_closure, + GRPC_ERROR_NONE); } } @@ -724,9 +728,12 @@ void grpc_resource_user_unref(grpc_exec_ctx *exec_ctx, void grpc_resource_user_shutdown(grpc_exec_ctx *exec_ctx, grpc_resource_user *resource_user) { if (gpr_atm_full_fetch_add(&resource_user->shutdown, 1) == 0) { - grpc_combiner_execute(exec_ctx, resource_user->resource_quota->combiner, - grpc_closure_create(ru_shutdown, resource_user), - GRPC_ERROR_NONE, false); + grpc_closure_sched(exec_ctx, + grpc_closure_create( + ru_shutdown, resource_user, + grpc_combiner_scheduler( + resource_user->resource_quota->combiner, false)), + GRPC_ERROR_NONE); } } @@ -746,12 +753,11 @@ void grpc_resource_user_alloc(grpc_exec_ctx *exec_ctx, GRPC_ERROR_NONE); if (!resource_user->allocating) { resource_user->allocating = true; - grpc_combiner_execute(exec_ctx, resource_user->resource_quota->combiner, - &resource_user->allocate_closure, GRPC_ERROR_NONE, - false); + grpc_closure_sched(exec_ctx, &resource_user->allocate_closure, + GRPC_ERROR_NONE); } } else { - grpc_exec_ctx_sched(exec_ctx, optional_on_done, GRPC_ERROR_NONE, NULL); + grpc_closure_sched(exec_ctx, optional_on_done, GRPC_ERROR_NONE); } gpr_mu_unlock(&resource_user->mu); } @@ -770,9 +776,8 @@ void grpc_resource_user_free(grpc_exec_ctx *exec_ctx, if (is_bigger_than_zero && was_zero_or_negative && !resource_user->added_to_free_pool) { resource_user->added_to_free_pool = true; - grpc_combiner_execute(exec_ctx, resource_user->resource_quota->combiner, - &resource_user->add_to_free_pool_closure, - GRPC_ERROR_NONE, false); + grpc_closure_sched(exec_ctx, &resource_user->add_to_free_pool_closure, + GRPC_ERROR_NONE); } gpr_mu_unlock(&resource_user->mu); ru_unref_by(exec_ctx, resource_user, (gpr_atm)size); @@ -784,9 +789,9 @@ void grpc_resource_user_post_reclaimer(grpc_exec_ctx *exec_ctx, grpc_closure *closure) { GPR_ASSERT(resource_user->new_reclaimers[destructive] == NULL); resource_user->new_reclaimers[destructive] = closure; - grpc_combiner_execute(exec_ctx, resource_user->resource_quota->combiner, - &resource_user->post_reclaimer_closure[destructive], - GRPC_ERROR_NONE, false); + grpc_closure_sched(exec_ctx, + &resource_user->post_reclaimer_closure[destructive], + GRPC_ERROR_NONE); } void grpc_resource_user_finish_reclamation(grpc_exec_ctx *exec_ctx, @@ -795,18 +800,20 @@ void grpc_resource_user_finish_reclamation(grpc_exec_ctx *exec_ctx, gpr_log(GPR_DEBUG, "RQ %s %s: reclamation complete", resource_user->resource_quota->name, resource_user->name); } - grpc_combiner_execute( - exec_ctx, resource_user->resource_quota->combiner, - &resource_user->resource_quota->rq_reclamation_done_closure, - GRPC_ERROR_NONE, false); + grpc_closure_sched( + exec_ctx, &resource_user->resource_quota->rq_reclamation_done_closure, + GRPC_ERROR_NONE); } void grpc_resource_user_slice_allocator_init( grpc_resource_user_slice_allocator *slice_allocator, grpc_resource_user *resource_user, grpc_iomgr_cb_func cb, void *p) { - grpc_closure_init(&slice_allocator->on_allocated, ru_allocated_slices, - slice_allocator); - grpc_closure_init(&slice_allocator->on_done, cb, p); + grpc_closure_init( + &slice_allocator->on_allocated, ru_allocated_slices, slice_allocator, + grpc_combiner_scheduler(resource_user->resource_quota->combiner, false)); + grpc_closure_init( + &slice_allocator->on_done, cb, p, + grpc_combiner_scheduler(resource_user->resource_quota->combiner, false)); slice_allocator->resource_user = resource_user; } diff --git a/src/core/lib/iomgr/socket_windows.c b/src/core/lib/iomgr/socket_windows.c index 54911e0e31..2f2e02f715 100644 --- a/src/core/lib/iomgr/socket_windows.c +++ b/src/core/lib/iomgr/socket_windows.c @@ -131,7 +131,7 @@ static void socket_notify_on_iocp(grpc_exec_ctx *exec_ctx, gpr_mu_lock(&socket->state_mu); if (info->has_pending_iocp) { info->has_pending_iocp = 0; - grpc_exec_ctx_sched(exec_ctx, closure, GRPC_ERROR_NONE, NULL); + grpc_closure_sched(exec_ctx, closure, GRPC_ERROR_NONE); } else { info->closure = closure; } @@ -154,7 +154,7 @@ void grpc_socket_become_ready(grpc_exec_ctx *exec_ctx, grpc_winsocket *socket, GPR_ASSERT(!info->has_pending_iocp); gpr_mu_lock(&socket->state_mu); if (info->closure) { - grpc_exec_ctx_sched(exec_ctx, info->closure, GRPC_ERROR_NONE, NULL); + grpc_closure_sched(exec_ctx, info->closure, GRPC_ERROR_NONE); info->closure = NULL; } else { info->has_pending_iocp = 1; diff --git a/src/core/lib/iomgr/tcp_client_posix.c b/src/core/lib/iomgr/tcp_client_posix.c index a3a70a8ed7..d089d2bc3b 100644 --- a/src/core/lib/iomgr/tcp_client_posix.c +++ b/src/core/lib/iomgr/tcp_client_posix.c @@ -265,7 +265,7 @@ finish: grpc_channel_args_destroy(ac->channel_args); gpr_free(ac); } - grpc_exec_ctx_sched(exec_ctx, closure, error, NULL); + grpc_closure_sched(exec_ctx, closure, error); } static void tcp_client_connect_impl(grpc_exec_ctx *exec_ctx, @@ -294,7 +294,7 @@ static void tcp_client_connect_impl(grpc_exec_ctx *exec_ctx, error = grpc_create_dualstack_socket(addr, SOCK_STREAM, 0, &dsmode, &fd); if (error != GRPC_ERROR_NONE) { - grpc_exec_ctx_sched(exec_ctx, closure, error, NULL); + grpc_closure_sched(exec_ctx, closure, error); return; } if (dsmode == GRPC_DSMODE_IPV4) { @@ -303,7 +303,7 @@ static void tcp_client_connect_impl(grpc_exec_ctx *exec_ctx, addr = &addr4_copy; } if ((error = prepare_socket(addr, fd, channel_args)) != GRPC_ERROR_NONE) { - grpc_exec_ctx_sched(exec_ctx, closure, error, NULL); + grpc_closure_sched(exec_ctx, closure, error); return; } @@ -321,14 +321,13 @@ static void tcp_client_connect_impl(grpc_exec_ctx *exec_ctx, if (err >= 0) { *ep = grpc_tcp_client_create_from_fd(exec_ctx, fdobj, channel_args, addr_str); - grpc_exec_ctx_sched(exec_ctx, closure, GRPC_ERROR_NONE, NULL); + grpc_closure_sched(exec_ctx, closure, GRPC_ERROR_NONE); goto done; } if (errno != EWOULDBLOCK && errno != EINPROGRESS) { grpc_fd_orphan(exec_ctx, fdobj, NULL, NULL, "tcp_client_connect_error"); - grpc_exec_ctx_sched(exec_ctx, closure, GRPC_OS_ERROR(errno, "connect"), - NULL); + grpc_closure_sched(exec_ctx, closure, GRPC_OS_ERROR(errno, "connect")); goto done; } @@ -343,8 +342,8 @@ static void tcp_client_connect_impl(grpc_exec_ctx *exec_ctx, addr_str = NULL; gpr_mu_init(&ac->mu); ac->refs = 2; - ac->write_closure.cb = on_writable; - ac->write_closure.cb_arg = ac; + grpc_closure_init(&ac->write_closure, on_writable, ac, + grpc_schedule_on_exec_ctx); ac->channel_args = grpc_channel_args_copy(channel_args); if (grpc_tcp_trace) { diff --git a/src/core/lib/iomgr/tcp_client_uv.c b/src/core/lib/iomgr/tcp_client_uv.c index b07f9ceffa..b1664b85fd 100644 --- a/src/core/lib/iomgr/tcp_client_uv.c +++ b/src/core/lib/iomgr/tcp_client_uv.c @@ -110,7 +110,7 @@ static void uv_tc_on_connect(uv_connect_t *req, int status) { if (done) { uv_tcp_connect_cleanup(&exec_ctx, connect); } - grpc_exec_ctx_sched(&exec_ctx, closure, error, NULL); + grpc_closure_sched(&exec_ctx, closure, error); grpc_exec_ctx_finish(&exec_ctx); } diff --git a/src/core/lib/iomgr/tcp_client_windows.c b/src/core/lib/iomgr/tcp_client_windows.c index 1127588ebc..692252bbe0 100644 --- a/src/core/lib/iomgr/tcp_client_windows.c +++ b/src/core/lib/iomgr/tcp_client_windows.c @@ -129,7 +129,7 @@ static void on_connect(grpc_exec_ctx *exec_ctx, void *acp, grpc_error *error) { async_connect_unlock_and_cleanup(exec_ctx, ac, socket); /* If the connection was aborted, the callback was already called when the deadline was met. */ - grpc_exec_ctx_sched(exec_ctx, on_done, error, NULL); + grpc_closure_sched(exec_ctx, on_done, error); } /* Tries to issue one async connection, then schedules both an IOCP @@ -227,7 +227,7 @@ void grpc_tcp_client_connect(grpc_exec_ctx *exec_ctx, grpc_closure *on_done, ac->addr_name = grpc_sockaddr_to_uri(addr); ac->endpoint = endpoint; ac->resource_quota = resource_quota; - grpc_closure_init(&ac->on_connect, on_connect, ac); + grpc_closure_init(&ac->on_connect, on_connect, ac, grpc_schedule_on_exec_ctx); grpc_timer_init(exec_ctx, &ac->alarm, deadline, on_alarm, ac, gpr_now(GPR_CLOCK_MONOTONIC)); @@ -247,7 +247,7 @@ failure: closesocket(sock); } grpc_resource_quota_internal_unref(exec_ctx, resource_quota); - grpc_exec_ctx_sched(exec_ctx, on_done, final_error, NULL); + grpc_closure_sched(exec_ctx, on_done, final_error); } #endif /* GRPC_WINSOCK_SOCKET */ diff --git a/src/core/lib/iomgr/tcp_posix.c b/src/core/lib/iomgr/tcp_posix.c index 12a4797e6f..21a0371d10 100644 --- a/src/core/lib/iomgr/tcp_posix.c +++ b/src/core/lib/iomgr/tcp_posix.c @@ -107,6 +107,12 @@ typedef struct { grpc_resource_user_slice_allocator slice_allocator; } grpc_tcp; +static grpc_error *tcp_annotate_error(grpc_error *src_error, grpc_tcp *tcp) { + return grpc_error_set_str( + grpc_error_set_int(src_error, GRPC_ERROR_INT_FD, tcp->fd), + GRPC_ERROR_STR_TARGET_ADDRESS, tcp->peer_string); +} + static void tcp_handle_read(grpc_exec_ctx *exec_ctx, void *arg /* grpc_tcp */, grpc_error *error); static void tcp_handle_write(grpc_exec_ctx *exec_ctx, void *arg /* grpc_tcp */, @@ -230,13 +236,15 @@ static void tcp_do_read(grpc_exec_ctx *exec_ctx, grpc_tcp *tcp) { grpc_fd_notify_on_read(exec_ctx, tcp->em_fd, &tcp->read_closure); } else { grpc_slice_buffer_reset_and_unref(tcp->incoming_buffer); - call_read_cb(exec_ctx, tcp, GRPC_OS_ERROR(errno, "recvmsg")); + call_read_cb(exec_ctx, tcp, + tcp_annotate_error(GRPC_OS_ERROR(errno, "recvmsg"), tcp)); TCP_UNREF(exec_ctx, tcp, "read"); } } else if (read_bytes == 0) { /* 0 read size ==> end of stream */ grpc_slice_buffer_reset_and_unref(tcp->incoming_buffer); - call_read_cb(exec_ctx, tcp, GRPC_ERROR_CREATE("Socket closed")); + call_read_cb(exec_ctx, tcp, + tcp_annotate_error(GRPC_ERROR_CREATE("Socket closed"), tcp)); TCP_UNREF(exec_ctx, tcp, "read"); } else { GPR_ASSERT((size_t)read_bytes <= tcp->incoming_buffer->length); @@ -308,7 +316,7 @@ static void tcp_read(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep, tcp->finished_edge = false; grpc_fd_notify_on_read(exec_ctx, tcp->em_fd, &tcp->read_closure); } else { - grpc_exec_ctx_sched(exec_ctx, &tcp->read_closure, GRPC_ERROR_NONE, NULL); + grpc_closure_sched(exec_ctx, &tcp->read_closure, GRPC_ERROR_NONE); } } @@ -365,8 +373,13 @@ static bool tcp_flush(grpc_tcp *tcp, grpc_error **error) { tcp->outgoing_slice_idx = unwind_slice_idx; tcp->outgoing_byte_idx = unwind_byte_idx; return false; + } else if (errno == EPIPE) { + *error = grpc_error_set_int(GRPC_OS_ERROR(errno, "sendmsg"), + GRPC_ERROR_INT_GRPC_STATUS, + GRPC_STATUS_UNAVAILABLE); + return true; } else { - *error = GRPC_OS_ERROR(errno, "sendmsg"); + *error = tcp_annotate_error(GRPC_OS_ERROR(errno, "sendmsg"), tcp); return true; } } @@ -447,10 +460,10 @@ static void tcp_write(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep, if (buf->length == 0) { GPR_TIMER_END("tcp_write", 0); - grpc_exec_ctx_sched(exec_ctx, cb, grpc_fd_is_shutdown(tcp->em_fd) - ? GRPC_ERROR_CREATE("EOF") - : GRPC_ERROR_NONE, - NULL); + grpc_closure_sched(exec_ctx, cb, + grpc_fd_is_shutdown(tcp->em_fd) + ? tcp_annotate_error(GRPC_ERROR_CREATE("EOF"), tcp) + : GRPC_ERROR_NONE); return; } tcp->outgoing_buffer = buf; @@ -470,7 +483,7 @@ static void tcp_write(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep, gpr_log(GPR_DEBUG, "write: %s", str); grpc_error_free_string(str); } - grpc_exec_ctx_sched(exec_ctx, cb, error, NULL); + grpc_closure_sched(exec_ctx, cb, error); } GPR_TIMER_END("tcp_write", 0); @@ -538,10 +551,10 @@ grpc_endpoint *grpc_tcp_create(grpc_fd *em_fd, gpr_ref_init(&tcp->refcount, 1); gpr_atm_no_barrier_store(&tcp->shutdown_count, 0); tcp->em_fd = em_fd; - tcp->read_closure.cb = tcp_handle_read; - tcp->read_closure.cb_arg = tcp; - tcp->write_closure.cb = tcp_handle_write; - tcp->write_closure.cb_arg = tcp; + grpc_closure_init(&tcp->read_closure, tcp_handle_read, tcp, + grpc_schedule_on_exec_ctx); + grpc_closure_init(&tcp->write_closure, tcp_handle_write, tcp, + grpc_schedule_on_exec_ctx); grpc_slice_buffer_init(&tcp->last_read_buffer); tcp->resource_user = grpc_resource_user_create(resource_quota, peer_string); grpc_resource_user_slice_allocator_init( diff --git a/src/core/lib/iomgr/tcp_server.h b/src/core/lib/iomgr/tcp_server.h index 6eba8c4057..437a94beff 100644 --- a/src/core/lib/iomgr/tcp_server.h +++ b/src/core/lib/iomgr/tcp_server.h @@ -52,7 +52,8 @@ typedef struct grpc_tcp_server_acceptor { unsigned fd_index; } grpc_tcp_server_acceptor; -/* Called for newly connected TCP connections. */ +/* Called for newly connected TCP connections. + Takes ownership of acceptor. */ typedef void (*grpc_tcp_server_cb)(grpc_exec_ctx *exec_ctx, void *arg, grpc_endpoint *ep, grpc_pollset *accepting_pollset, diff --git a/src/core/lib/iomgr/tcp_server_posix.c b/src/core/lib/iomgr/tcp_server_posix.c index 7e2fb0f1f9..6db624dd56 100644 --- a/src/core/lib/iomgr/tcp_server_posix.c +++ b/src/core/lib/iomgr/tcp_server_posix.c @@ -208,7 +208,7 @@ static void finish_shutdown(grpc_exec_ctx *exec_ctx, grpc_tcp_server *s) { GPR_ASSERT(s->shutdown); gpr_mu_unlock(&s->mu); if (s->shutdown_complete != NULL) { - grpc_exec_ctx_sched(exec_ctx, s->shutdown_complete, GRPC_ERROR_NONE, NULL); + grpc_closure_sched(exec_ctx, s->shutdown_complete, GRPC_ERROR_NONE); } gpr_mu_destroy(&s->mu); @@ -254,8 +254,8 @@ static void deactivated_all_ports(grpc_exec_ctx *exec_ctx, grpc_tcp_server *s) { grpc_tcp_listener *sp; for (sp = s->head; sp; sp = sp->next) { grpc_unlink_if_unix_domain_socket(&sp->addr); - sp->destroyed_closure.cb = destroyed_port; - sp->destroyed_closure.cb_arg = s; + grpc_closure_init(&sp->destroyed_closure, destroyed_port, s, + grpc_schedule_on_exec_ctx); grpc_fd_orphan(exec_ctx, sp->emfd, &sp->destroyed_closure, NULL, "tcp_listener_shutdown"); } @@ -381,16 +381,12 @@ error: /* event manager callback when reads are ready */ static void on_read(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *err) { grpc_tcp_listener *sp = arg; - grpc_tcp_server_acceptor acceptor = {sp->server, sp->port_index, - sp->fd_index}; - grpc_pollset *read_notifier_pollset = NULL; - grpc_fd *fdobj; if (err != GRPC_ERROR_NONE) { goto error; } - read_notifier_pollset = + grpc_pollset *read_notifier_pollset = sp->server->pollsets[(size_t)gpr_atm_no_barrier_fetch_add( &sp->server->next_pollset_to_assign, 1) % sp->server->pollset_count]; @@ -426,7 +422,7 @@ static void on_read(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *err) { gpr_log(GPR_DEBUG, "SERVER_CONNECT: incoming connection: %s", addr_str); } - fdobj = grpc_fd_create(fd, name); + grpc_fd *fdobj = grpc_fd_create(fd, name); if (read_notifier_pollset == NULL) { gpr_log(GPR_ERROR, "Read notifier pollset is not set on the fd"); @@ -435,11 +431,17 @@ static void on_read(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *err) { grpc_pollset_add_fd(exec_ctx, read_notifier_pollset, fdobj); + // Create acceptor. + grpc_tcp_server_acceptor *acceptor = gpr_malloc(sizeof(*acceptor)); + acceptor->from_server = sp->server; + acceptor->port_index = sp->port_index; + acceptor->fd_index = sp->fd_index; + sp->server->on_accept_cb( exec_ctx, sp->server->on_accept_cb_arg, grpc_tcp_create(fdobj, sp->server->resource_quota, GRPC_TCP_DEFAULT_READ_SLICE_SIZE, addr_str), - read_notifier_pollset, &acceptor); + read_notifier_pollset, acceptor); gpr_free(name); gpr_free(addr_str); @@ -721,8 +723,8 @@ void grpc_tcp_server_start(grpc_exec_ctx *exec_ctx, grpc_tcp_server *s, "clone_port", clone_port(sp, (unsigned)(pollset_count - 1)))); for (i = 0; i < pollset_count; i++) { grpc_pollset_add_fd(exec_ctx, pollsets[i], sp->emfd); - sp->read_closure.cb = on_read; - sp->read_closure.cb_arg = sp; + grpc_closure_init(&sp->read_closure, on_read, sp, + grpc_schedule_on_exec_ctx); grpc_fd_notify_on_read(exec_ctx, sp->emfd, &sp->read_closure); s->active_ports++; sp = sp->next; @@ -731,8 +733,8 @@ void grpc_tcp_server_start(grpc_exec_ctx *exec_ctx, grpc_tcp_server *s, for (i = 0; i < pollset_count; i++) { grpc_pollset_add_fd(exec_ctx, pollsets[i], sp->emfd); } - sp->read_closure.cb = on_read; - sp->read_closure.cb_arg = sp; + grpc_closure_init(&sp->read_closure, on_read, sp, + grpc_schedule_on_exec_ctx); grpc_fd_notify_on_read(exec_ctx, sp->emfd, &sp->read_closure); s->active_ports++; sp = sp->next; @@ -758,7 +760,7 @@ void grpc_tcp_server_unref(grpc_exec_ctx *exec_ctx, grpc_tcp_server *s) { if (gpr_unref(&s->refs)) { grpc_tcp_server_shutdown_listeners(exec_ctx, s); gpr_mu_lock(&s->mu); - grpc_exec_ctx_enqueue_list(exec_ctx, &s->shutdown_starting, NULL); + grpc_closure_list_sched(exec_ctx, &s->shutdown_starting); gpr_mu_unlock(&s->mu); tcp_server_destroy(exec_ctx, s); } diff --git a/src/core/lib/iomgr/tcp_server_uv.c b/src/core/lib/iomgr/tcp_server_uv.c index b5b9b92a20..8abc60d624 100644 --- a/src/core/lib/iomgr/tcp_server_uv.c +++ b/src/core/lib/iomgr/tcp_server_uv.c @@ -126,7 +126,7 @@ void grpc_tcp_server_shutdown_starting_add(grpc_tcp_server *s, static void finish_shutdown(grpc_exec_ctx *exec_ctx, grpc_tcp_server *s) { if (s->shutdown_complete != NULL) { - grpc_exec_ctx_sched(exec_ctx, s->shutdown_complete, GRPC_ERROR_NONE, NULL); + grpc_closure_sched(exec_ctx, s->shutdown_complete, GRPC_ERROR_NONE); } while (s->head) { @@ -170,7 +170,7 @@ void grpc_tcp_server_unref(grpc_exec_ctx *exec_ctx, grpc_tcp_server *s) { if (gpr_unref(&s->refs)) { /* Complete shutdown_starting work before destroying. */ grpc_exec_ctx local_exec_ctx = GRPC_EXEC_CTX_INIT; - grpc_exec_ctx_enqueue_list(&local_exec_ctx, &s->shutdown_starting, NULL); + grpc_closure_list_sched(&local_exec_ctx, &s->shutdown_starting); if (exec_ctx == NULL) { grpc_exec_ctx_flush(&local_exec_ctx); tcp_server_destroy(&local_exec_ctx, s); @@ -188,7 +188,6 @@ static void accepted_connection_close_cb(uv_handle_t *handle) { static void on_connect(uv_stream_t *server, int status) { grpc_tcp_listener *sp = (grpc_tcp_listener *)server->data; - grpc_tcp_server_acceptor acceptor = {sp->server, sp->port_index, 0}; uv_tcp_t *client; grpc_endpoint *ep = NULL; grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; @@ -201,6 +200,7 @@ static void on_connect(uv_stream_t *server, int status) { uv_strerror(status)); return; } + client = gpr_malloc(sizeof(uv_tcp_t)); uv_tcp_init(uv_default_loop(), client); // UV documentation says this is guaranteed to succeed @@ -220,8 +220,13 @@ static void on_connect(uv_stream_t *server, int status) { gpr_log(GPR_INFO, "uv_tcp_getpeername error: %s", uv_strerror(status)); } ep = grpc_tcp_create(client, sp->server->resource_quota, peer_name_string); + // Create acceptor. + grpc_tcp_server_acceptor *acceptor = gpr_malloc(sizeof(*acceptor)); + acceptor->from_server = sp->server; + acceptor->port_index = sp->port_index; + acceptor->fd_index = 0; sp->server->on_accept_cb(&exec_ctx, sp->server->on_accept_cb_arg, ep, NULL, - &acceptor); + acceptor); grpc_exec_ctx_finish(&exec_ctx); } } diff --git a/src/core/lib/iomgr/tcp_server_windows.c b/src/core/lib/iomgr/tcp_server_windows.c index b8a391c059..6302bff5d2 100644 --- a/src/core/lib/iomgr/tcp_server_windows.c +++ b/src/core/lib/iomgr/tcp_server_windows.c @@ -162,11 +162,12 @@ static void destroy_server(grpc_exec_ctx *exec_ctx, void *arg, static void finish_shutdown_locked(grpc_exec_ctx *exec_ctx, grpc_tcp_server *s) { if (s->shutdown_complete != NULL) { - grpc_exec_ctx_sched(exec_ctx, s->shutdown_complete, GRPC_ERROR_NONE, NULL); + grpc_closure_sched(exec_ctx, s->shutdown_complete, GRPC_ERROR_NONE); } - grpc_exec_ctx_sched(exec_ctx, grpc_closure_create(destroy_server, s), - GRPC_ERROR_NONE, NULL); + grpc_closure_sched(exec_ctx, grpc_closure_create(destroy_server, s, + grpc_schedule_on_exec_ctx), + GRPC_ERROR_NONE); } grpc_tcp_server *grpc_tcp_server_ref(grpc_tcp_server *s) { @@ -204,7 +205,7 @@ void grpc_tcp_server_unref(grpc_exec_ctx *exec_ctx, grpc_tcp_server *s) { if (gpr_unref(&s->refs)) { grpc_tcp_server_shutdown_listeners(exec_ctx, s); gpr_mu_lock(&s->mu); - grpc_exec_ctx_enqueue_list(exec_ctx, &s->shutdown_starting, NULL); + grpc_closure_list_sched(exec_ctx, &s->shutdown_starting); gpr_mu_unlock(&s->mu); tcp_server_destroy(exec_ctx, s); } @@ -323,7 +324,6 @@ failure: /* Event manager callback when reads are ready. */ static void on_accept(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) { grpc_tcp_listener *sp = arg; - grpc_tcp_server_acceptor acceptor = {sp->server, sp->port_index, 0}; SOCKET sock = sp->new_socket; grpc_winsocket_callback_info *info = &sp->socket->read_info; grpc_endpoint *ep = NULL; @@ -396,8 +396,13 @@ static void on_accept(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) { /* The only time we should call our callback, is where we successfully managed to accept a connection, and created an endpoint. */ if (ep) { + // Create acceptor. + grpc_tcp_server_acceptor *acceptor = gpr_malloc(sizeof(*acceptor)); + acceptor->from_server = sp->server; + acceptor->port_index = sp->port_index; + acceptor->fd_index = 0; sp->server->on_accept_cb(exec_ctx, sp->server->on_accept_cb_arg, ep, NULL, - &acceptor); + acceptor); } /* As we were notified from the IOCP of one and exactly one accept, the former socked we created has now either been destroy or assigned @@ -461,7 +466,7 @@ static grpc_error *add_socket_to_server(grpc_tcp_server *s, SOCKET sock, sp->new_socket = INVALID_SOCKET; sp->port = port; sp->port_index = port_index; - grpc_closure_init(&sp->on_accept, on_accept, sp); + grpc_closure_init(&sp->on_accept, on_accept, sp, grpc_schedule_on_exec_ctx); GPR_ASSERT(sp->socket); gpr_mu_unlock(&s->mu); *listener = sp; diff --git a/src/core/lib/iomgr/tcp_uv.c b/src/core/lib/iomgr/tcp_uv.c index 6e2ad1dbe9..4be95457d5 100644 --- a/src/core/lib/iomgr/tcp_uv.c +++ b/src/core/lib/iomgr/tcp_uv.c @@ -169,7 +169,7 @@ static void read_callback(uv_stream_t *stream, ssize_t nread, // nread < 0: Error error = GRPC_ERROR_CREATE("TCP Read failed"); } - grpc_exec_ctx_sched(&exec_ctx, cb, error, NULL); + grpc_closure_sched(&exec_ctx, cb, error); grpc_exec_ctx_finish(&exec_ctx); } @@ -190,7 +190,7 @@ static void uv_endpoint_read(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep, error = GRPC_ERROR_CREATE("TCP Read failed at start"); error = grpc_error_set_str(error, GRPC_ERROR_STR_OS_ERROR, uv_strerror(status)); - grpc_exec_ctx_sched(exec_ctx, cb, error, NULL); + grpc_closure_sched(exec_ctx, cb, error); } if (grpc_tcp_trace) { const char *str = grpc_error_string(error); @@ -217,7 +217,7 @@ static void write_callback(uv_write_t *req, int status) { gpr_free(tcp->write_buffers); grpc_resource_user_free(&exec_ctx, tcp->resource_user, sizeof(uv_buf_t) * tcp->write_slices->count); - grpc_exec_ctx_sched(&exec_ctx, cb, error, NULL); + grpc_closure_sched(&exec_ctx, cb, error); grpc_exec_ctx_finish(&exec_ctx); } @@ -243,8 +243,8 @@ static void uv_endpoint_write(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep, } if (tcp->shutting_down) { - grpc_exec_ctx_sched(exec_ctx, cb, - GRPC_ERROR_CREATE("TCP socket is shutting down"), NULL); + grpc_closure_sched(exec_ctx, cb, + GRPC_ERROR_CREATE("TCP socket is shutting down")); return; } @@ -254,7 +254,7 @@ static void uv_endpoint_write(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep, if (tcp->write_slices->count == 0) { // No slices means we don't have to do anything, // and libuv doesn't like empty writes - grpc_exec_ctx_sched(exec_ctx, cb, GRPC_ERROR_NONE, NULL); + grpc_closure_sched(exec_ctx, cb, GRPC_ERROR_NONE); return; } diff --git a/src/core/lib/iomgr/tcp_windows.c b/src/core/lib/iomgr/tcp_windows.c index d4613b674e..fa13ac1d25 100644 --- a/src/core/lib/iomgr/tcp_windows.c +++ b/src/core/lib/iomgr/tcp_windows.c @@ -188,7 +188,7 @@ static void on_read(grpc_exec_ctx *exec_ctx, void *tcpp, grpc_error *error) { tcp->read_cb = NULL; TCP_UNREF(exec_ctx, tcp, "read"); - grpc_exec_ctx_sched(exec_ctx, cb, error, NULL); + grpc_closure_sched(exec_ctx, cb, error); } static void win_read(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep, @@ -202,8 +202,8 @@ static void win_read(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep, WSABUF buffer; if (tcp->shutting_down) { - grpc_exec_ctx_sched(exec_ctx, cb, - GRPC_ERROR_CREATE("TCP socket is shutting down"), NULL); + grpc_closure_sched(exec_ctx, cb, + GRPC_ERROR_CREATE("TCP socket is shutting down")); return; } @@ -227,7 +227,7 @@ static void win_read(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep, /* Did we get data immediately ? Yay. */ if (info->wsa_error != WSAEWOULDBLOCK) { info->bytes_transfered = bytes_read; - grpc_exec_ctx_sched(exec_ctx, &tcp->on_read, GRPC_ERROR_NONE, NULL); + grpc_closure_sched(exec_ctx, &tcp->on_read, GRPC_ERROR_NONE); return; } @@ -240,8 +240,8 @@ static void win_read(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep, int wsa_error = WSAGetLastError(); if (wsa_error != WSA_IO_PENDING) { info->wsa_error = wsa_error; - grpc_exec_ctx_sched(exec_ctx, &tcp->on_read, - GRPC_WSA_ERROR(info->wsa_error, "WSARecv"), NULL); + grpc_closure_sched(exec_ctx, &tcp->on_read, + GRPC_WSA_ERROR(info->wsa_error, "WSARecv")); return; } } @@ -272,7 +272,7 @@ static void on_write(grpc_exec_ctx *exec_ctx, void *tcpp, grpc_error *error) { } TCP_UNREF(exec_ctx, tcp, "write"); - grpc_exec_ctx_sched(exec_ctx, cb, error, NULL); + grpc_closure_sched(exec_ctx, cb, error); } /* Initiates a write. */ @@ -290,8 +290,8 @@ static void win_write(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep, size_t len; if (tcp->shutting_down) { - grpc_exec_ctx_sched(exec_ctx, cb, - GRPC_ERROR_CREATE("TCP socket is shutting down"), NULL); + grpc_closure_sched(exec_ctx, cb, + GRPC_ERROR_CREATE("TCP socket is shutting down")); return; } @@ -322,7 +322,7 @@ static void win_write(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep, grpc_error *error = status == 0 ? GRPC_ERROR_NONE : GRPC_WSA_ERROR(info->wsa_error, "WSASend"); - grpc_exec_ctx_sched(exec_ctx, cb, error, NULL); + grpc_closure_sched(exec_ctx, cb, error); if (allocated) gpr_free(allocated); return; } @@ -340,8 +340,7 @@ static void win_write(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep, int wsa_error = WSAGetLastError(); if (wsa_error != WSA_IO_PENDING) { TCP_UNREF(exec_ctx, tcp, "write"); - grpc_exec_ctx_sched(exec_ctx, cb, GRPC_WSA_ERROR(wsa_error, "WSASend"), - NULL); + grpc_closure_sched(exec_ctx, cb, GRPC_WSA_ERROR(wsa_error, "WSASend")); return; } } @@ -424,8 +423,8 @@ grpc_endpoint *grpc_tcp_create(grpc_winsocket *socket, tcp->socket = socket; gpr_mu_init(&tcp->mu); gpr_ref_init(&tcp->refcount, 1); - grpc_closure_init(&tcp->on_read, on_read, tcp); - grpc_closure_init(&tcp->on_write, on_write, tcp); + grpc_closure_init(&tcp->on_read, on_read, tcp, grpc_schedule_on_exec_ctx); + grpc_closure_init(&tcp->on_write, on_write, tcp, grpc_schedule_on_exec_ctx); tcp->peer_string = gpr_strdup(peer_string); tcp->resource_user = grpc_resource_user_create(resource_quota, peer_string); /* Tell network status tracking code about the new endpoint */ diff --git a/src/core/lib/iomgr/timer_generic.c b/src/core/lib/iomgr/timer_generic.c index 00058f9d86..ecd3b284dc 100644 --- a/src/core/lib/iomgr/timer_generic.c +++ b/src/core/lib/iomgr/timer_generic.c @@ -184,22 +184,22 @@ void grpc_timer_init(grpc_exec_ctx *exec_ctx, grpc_timer *timer, shard_type *shard = &g_shards[shard_idx(timer)]; GPR_ASSERT(deadline.clock_type == g_clock_type); GPR_ASSERT(now.clock_type == g_clock_type); - grpc_closure_init(&timer->closure, timer_cb, timer_cb_arg); + grpc_closure_init(&timer->closure, timer_cb, timer_cb_arg, + grpc_schedule_on_exec_ctx); timer->deadline = deadline; timer->triggered = 0; if (!g_initialized) { timer->triggered = 1; - grpc_exec_ctx_sched( + grpc_closure_sched( exec_ctx, &timer->closure, - GRPC_ERROR_CREATE("Attempt to create timer before initialization"), - NULL); + GRPC_ERROR_CREATE("Attempt to create timer before initialization")); return; } if (gpr_time_cmp(deadline, now) <= 0) { timer->triggered = 1; - grpc_exec_ctx_sched(exec_ctx, &timer->closure, GRPC_ERROR_NONE, NULL); + grpc_closure_sched(exec_ctx, &timer->closure, GRPC_ERROR_NONE); return; } @@ -251,7 +251,7 @@ void grpc_timer_cancel(grpc_exec_ctx *exec_ctx, grpc_timer *timer) { shard_type *shard = &g_shards[shard_idx(timer)]; gpr_mu_lock(&shard->mu); if (!timer->triggered) { - grpc_exec_ctx_sched(exec_ctx, &timer->closure, GRPC_ERROR_CANCELLED, NULL); + grpc_closure_sched(exec_ctx, &timer->closure, GRPC_ERROR_CANCELLED); timer->triggered = 1; if (timer->heap_index == INVALID_HEAP_INDEX) { list_remove(timer); @@ -317,7 +317,7 @@ static size_t pop_timers(grpc_exec_ctx *exec_ctx, shard_type *shard, grpc_timer *timer; gpr_mu_lock(&shard->mu); while ((timer = pop_one(shard, now))) { - grpc_exec_ctx_sched(exec_ctx, &timer->closure, GRPC_ERROR_REF(error), NULL); + grpc_closure_sched(exec_ctx, &timer->closure, GRPC_ERROR_REF(error)); n++; } *new_min_deadline = compute_min_deadline(shard); diff --git a/src/core/lib/iomgr/timer_uv.c b/src/core/lib/iomgr/timer_uv.c index cfcb89268b..00b835ffb8 100644 --- a/src/core/lib/iomgr/timer_uv.c +++ b/src/core/lib/iomgr/timer_uv.c @@ -55,7 +55,7 @@ void run_expired_timer(uv_timer_t *handle) { grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; GPR_ASSERT(!timer->triggered); timer->triggered = 1; - grpc_exec_ctx_sched(&exec_ctx, &timer->closure, GRPC_ERROR_NONE, NULL); + grpc_closure_sched(&exec_ctx, &timer->closure, GRPC_ERROR_NONE); stop_uv_timer(handle); grpc_exec_ctx_finish(&exec_ctx); } @@ -65,10 +65,11 @@ void grpc_timer_init(grpc_exec_ctx *exec_ctx, grpc_timer *timer, void *timer_cb_arg, gpr_timespec now) { uint64_t timeout; uv_timer_t *uv_timer; - grpc_closure_init(&timer->closure, timer_cb, timer_cb_arg); + grpc_closure_init(&timer->closure, timer_cb, timer_cb_arg, + grpc_schedule_on_exec_ctx); if (gpr_time_cmp(deadline, now) <= 0) { timer->triggered = 1; - grpc_exec_ctx_sched(exec_ctx, &timer->closure, GRPC_ERROR_NONE, NULL); + grpc_closure_sched(exec_ctx, &timer->closure, GRPC_ERROR_NONE); return; } timer->triggered = 0; @@ -83,7 +84,7 @@ void grpc_timer_init(grpc_exec_ctx *exec_ctx, grpc_timer *timer, void grpc_timer_cancel(grpc_exec_ctx *exec_ctx, grpc_timer *timer) { if (!timer->triggered) { timer->triggered = 1; - grpc_exec_ctx_sched(exec_ctx, &timer->closure, GRPC_ERROR_CANCELLED, NULL); + grpc_closure_sched(exec_ctx, &timer->closure, GRPC_ERROR_CANCELLED); stop_uv_timer((uv_timer_t *)timer->uv_timer); } } diff --git a/src/core/lib/iomgr/udp_server.c b/src/core/lib/iomgr/udp_server.c index 3c24ea9afa..dfbd295c91 100644 --- a/src/core/lib/iomgr/udp_server.c +++ b/src/core/lib/iomgr/udp_server.c @@ -126,7 +126,7 @@ grpc_udp_server *grpc_udp_server_create(void) { static void finish_shutdown(grpc_exec_ctx *exec_ctx, grpc_udp_server *s) { if (s->shutdown_complete != NULL) { - grpc_exec_ctx_sched(exec_ctx, s->shutdown_complete, GRPC_ERROR_NONE, NULL); + grpc_closure_sched(exec_ctx, s->shutdown_complete, GRPC_ERROR_NONE); } gpr_mu_destroy(&s->mu); @@ -170,8 +170,8 @@ static void deactivated_all_ports(grpc_exec_ctx *exec_ctx, grpc_udp_server *s) { for (sp = s->head; sp; sp = sp->next) { grpc_unlink_if_unix_domain_socket(&sp->addr); - sp->destroyed_closure.cb = destroyed_port; - sp->destroyed_closure.cb_arg = s; + grpc_closure_init(&sp->destroyed_closure, destroyed_port, s, + grpc_schedule_on_exec_ctx); /* Call the orphan_cb to signal that the FD is about to be closed and * should no longer be used. */ @@ -446,8 +446,8 @@ void grpc_udp_server_start(grpc_exec_ctx *exec_ctx, grpc_udp_server *s, for (i = 0; i < pollset_count; i++) { grpc_pollset_add_fd(exec_ctx, pollsets[i], sp->emfd); } - sp->read_closure.cb = on_read; - sp->read_closure.cb_arg = sp; + grpc_closure_init(&sp->read_closure, on_read, sp, + grpc_schedule_on_exec_ctx); grpc_fd_notify_on_read(exec_ctx, sp->emfd, &sp->read_closure); s->active_ports++; diff --git a/src/core/lib/iomgr/workqueue.h b/src/core/lib/iomgr/workqueue.h index 73d9849843..371b0f55dc 100644 --- a/src/core/lib/iomgr/workqueue.h +++ b/src/core/lib/iomgr/workqueue.h @@ -72,17 +72,16 @@ grpc_workqueue *grpc_workqueue_ref(grpc_workqueue *workqueue); void grpc_workqueue_unref(grpc_exec_ctx *exec_ctx, grpc_workqueue *workqueue); #endif -/** Add a work item to a workqueue. Items added to a work queue will be started - in approximately the order they were enqueued, on some thread that may or - may not be the current thread. Successive closures enqueued onto a workqueue - MAY be executed concurrently. +/** Fetch the workqueue closure scheduler. Items added to a work queue will be + started in approximately the order they were enqueued, on some thread that + may or may not be the current thread. Successive closures enqueued onto a + workqueue MAY be executed concurrently. It is generally more expensive to add a closure to a workqueue than to the execution context, both in terms of CPU work and in execution latency. Use work queues when it's important that other threads be given a chance to tackle some workload. */ -void grpc_workqueue_enqueue(grpc_exec_ctx *exec_ctx, grpc_workqueue *workqueue, - grpc_closure *closure, grpc_error *error); +grpc_closure_scheduler *grpc_workqueue_scheduler(grpc_workqueue *workqueue); #endif /* GRPC_CORE_LIB_IOMGR_WORKQUEUE_H */ diff --git a/src/core/lib/iomgr/workqueue_uv.c b/src/core/lib/iomgr/workqueue_uv.c index e58ca476cc..4d61b40912 100644 --- a/src/core/lib/iomgr/workqueue_uv.c +++ b/src/core/lib/iomgr/workqueue_uv.c @@ -58,9 +58,8 @@ grpc_workqueue *grpc_workqueue_ref(grpc_workqueue *workqueue) { void grpc_workqueue_unref(grpc_exec_ctx *exec_ctx, grpc_workqueue *workqueue) {} #endif -void grpc_workqueue_enqueue(grpc_exec_ctx *exec_ctx, grpc_workqueue *workqueue, - grpc_closure *closure, grpc_error *error) { - grpc_exec_ctx_sched(exec_ctx, closure, error, NULL); +grpc_closure_scheduler *grpc_workqueue_scheduler(grpc_workqueue *workqueue) { + return grpc_schedule_on_exec_ctx; } #endif /* GPR_UV */ diff --git a/src/core/lib/iomgr/workqueue_windows.c b/src/core/lib/iomgr/workqueue_windows.c index 5c93d3c59e..234b47cdf5 100644 --- a/src/core/lib/iomgr/workqueue_windows.c +++ b/src/core/lib/iomgr/workqueue_windows.c @@ -56,9 +56,8 @@ grpc_workqueue *grpc_workqueue_ref(grpc_workqueue *workqueue) { void grpc_workqueue_unref(grpc_exec_ctx *exec_ctx, grpc_workqueue *workqueue) {} #endif -void grpc_workqueue_enqueue(grpc_exec_ctx *exec_ctx, grpc_workqueue *workqueue, - grpc_closure *closure, grpc_error *error) { - grpc_exec_ctx_sched(exec_ctx, closure, error, NULL); +grpc_closure_scheduler *grpc_workqueue_scheduler(grpc_workqueue *workqueue) { + return grpc_schedule_on_exec_ctx; } #endif /* GPR_WINDOWS */ |