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-rw-r--r--src/core/lib/iomgr/ev_epoll1_linux.c235
-rw-r--r--src/core/lib/iomgr/ev_epoll_limited_pollers_linux.c8
-rw-r--r--src/core/lib/iomgr/ev_epoll_thread_pool_linux.c8
-rw-r--r--src/core/lib/iomgr/ev_epollex_linux.c8
-rw-r--r--src/core/lib/iomgr/ev_epollsig_linux.c10
-rw-r--r--src/core/lib/iomgr/lockfree_event.c14
-rw-r--r--src/core/lib/iomgr/lockfree_event.h5
7 files changed, 225 insertions, 63 deletions
diff --git a/src/core/lib/iomgr/ev_epoll1_linux.c b/src/core/lib/iomgr/ev_epoll1_linux.c
index 66ba601adb..fb54e9c954 100644
--- a/src/core/lib/iomgr/ev_epoll1_linux.c
+++ b/src/core/lib/iomgr/ev_epoll1_linux.c
@@ -45,6 +45,7 @@
#include "src/core/lib/iomgr/wakeup_fd_posix.h"
#include "src/core/lib/profiling/timers.h"
#include "src/core/lib/support/block_annotate.h"
+#include "src/core/lib/support/string.h"
static grpc_wakeup_fd global_wakeup_fd;
static int g_epfd;
@@ -77,8 +78,21 @@ static void fd_global_shutdown(void);
typedef enum { UNKICKED, KICKED, DESIGNATED_POLLER } kick_state;
+static const char *kick_state_string(kick_state st) {
+ switch (st) {
+ case UNKICKED:
+ return "UNKICKED";
+ case KICKED:
+ return "KICKED";
+ case DESIGNATED_POLLER:
+ return "DESIGNATED_POLLER";
+ }
+ GPR_UNREACHABLE_CODE(return "UNKNOWN");
+}
+
struct grpc_pollset_worker {
kick_state kick_state;
+ int kick_state_mutator; // which line of code last changed kick state
bool initialized_cv;
grpc_pollset_worker *next;
grpc_pollset_worker *prev;
@@ -86,6 +100,12 @@ struct grpc_pollset_worker {
grpc_closure_list schedule_on_end_work;
};
+#define SET_KICK_STATE(worker, state) \
+ do { \
+ (worker)->kick_state = (state); \
+ (worker)->kick_state_mutator = __LINE__; \
+ } while (false)
+
#define MAX_NEIGHBOURHOODS 1024
typedef struct pollset_neighbourhood {
@@ -263,17 +283,17 @@ static bool fd_is_shutdown(grpc_fd *fd) {
static void fd_notify_on_read(grpc_exec_ctx *exec_ctx, grpc_fd *fd,
grpc_closure *closure) {
- grpc_lfev_notify_on(exec_ctx, &fd->read_closure, closure);
+ grpc_lfev_notify_on(exec_ctx, &fd->read_closure, closure, "read");
}
static void fd_notify_on_write(grpc_exec_ctx *exec_ctx, grpc_fd *fd,
grpc_closure *closure) {
- grpc_lfev_notify_on(exec_ctx, &fd->write_closure, closure);
+ grpc_lfev_notify_on(exec_ctx, &fd->write_closure, closure, "write");
}
static void fd_become_readable(grpc_exec_ctx *exec_ctx, grpc_fd *fd,
grpc_pollset *notifier) {
- grpc_lfev_set_ready(exec_ctx, &fd->read_closure);
+ grpc_lfev_set_ready(exec_ctx, &fd->read_closure, "read");
/* Note, it is possible that fd_become_readable might be called twice with
different 'notifier's when an fd becomes readable and it is in two epoll
@@ -285,7 +305,7 @@ static void fd_become_readable(grpc_exec_ctx *exec_ctx, grpc_fd *fd,
}
static void fd_become_writable(grpc_exec_ctx *exec_ctx, grpc_fd *fd) {
- grpc_lfev_set_ready(exec_ctx, &fd->write_closure);
+ grpc_lfev_set_ready(exec_ctx, &fd->write_closure, "write");
}
/*******************************************************************************
@@ -410,13 +430,20 @@ static grpc_error *pollset_kick_all(grpc_pollset *pollset) {
if (pollset->root_worker != NULL) {
grpc_pollset_worker *worker = pollset->root_worker;
do {
- if (worker->initialized_cv) {
- worker->kick_state = KICKED;
- gpr_cv_signal(&worker->cv);
- } else {
- worker->kick_state = KICKED;
- append_error(&error, grpc_wakeup_fd_wakeup(&global_wakeup_fd),
- "pollset_shutdown");
+ switch (worker->kick_state) {
+ case KICKED:
+ break;
+ case UNKICKED:
+ SET_KICK_STATE(worker, KICKED);
+ if (worker->initialized_cv) {
+ gpr_cv_signal(&worker->cv);
+ }
+ break;
+ case DESIGNATED_POLLER:
+ SET_KICK_STATE(worker, KICKED);
+ append_error(&error, grpc_wakeup_fd_wakeup(&global_wakeup_fd),
+ "pollset_shutdown");
+ break;
}
worker = worker->next;
@@ -437,7 +464,9 @@ static void pollset_maybe_finish_shutdown(grpc_exec_ctx *exec_ctx,
static void pollset_shutdown(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset,
grpc_closure *closure) {
GPR_ASSERT(pollset->shutdown_closure == NULL);
+ GPR_ASSERT(!pollset->shutting_down);
pollset->shutdown_closure = closure;
+ pollset->shutting_down = true;
GRPC_LOG_IF_ERROR("pollset_shutdown", pollset_kick_all(pollset));
pollset_maybe_finish_shutdown(exec_ctx, pollset);
}
@@ -510,10 +539,14 @@ static bool begin_worker(grpc_pollset *pollset, grpc_pollset_worker *worker,
gpr_timespec deadline) {
if (worker_hdl != NULL) *worker_hdl = worker;
worker->initialized_cv = false;
- worker->kick_state = UNKICKED;
+ SET_KICK_STATE(worker, UNKICKED);
worker->schedule_on_end_work = (grpc_closure_list)GRPC_CLOSURE_LIST_INIT;
pollset->begin_refs++;
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_log(GPR_ERROR, "PS:%p BEGIN_STARTS:%p", pollset, worker);
+ }
+
if (pollset->seen_inactive) {
// pollset has been observed to be inactive, we need to move back to the
// active list
@@ -529,6 +562,11 @@ static bool begin_worker(grpc_pollset *pollset, grpc_pollset_worker *worker,
retry_lock_neighbourhood:
gpr_mu_lock(&neighbourhood->mu);
gpr_mu_lock(&pollset->mu);
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_log(GPR_ERROR, "PS:%p BEGIN_REORG:%p kick_state=%s is_reassigning=%d",
+ pollset, worker, kick_state_string(worker->kick_state),
+ is_reassigning);
+ }
if (pollset->seen_inactive) {
if (neighbourhood != pollset->neighbourhood) {
gpr_mu_unlock(&neighbourhood->mu);
@@ -539,8 +577,9 @@ static bool begin_worker(grpc_pollset *pollset, grpc_pollset_worker *worker,
pollset->seen_inactive = false;
if (neighbourhood->active_root == NULL) {
neighbourhood->active_root = pollset->next = pollset->prev = pollset;
- if (gpr_atm_no_barrier_cas(&g_active_poller, 0, (gpr_atm)worker)) {
- worker->kick_state = DESIGNATED_POLLER;
+ if (worker->kick_state == UNKICKED &&
+ gpr_atm_no_barrier_cas(&g_active_poller, 0, (gpr_atm)worker)) {
+ SET_KICK_STATE(worker, DESIGNATED_POLLER);
}
} else {
pollset->next = neighbourhood->active_root;
@@ -560,18 +599,26 @@ static bool begin_worker(grpc_pollset *pollset, grpc_pollset_worker *worker,
GPR_ASSERT(gpr_atm_no_barrier_load(&g_active_poller) != (gpr_atm)worker);
worker->initialized_cv = true;
gpr_cv_init(&worker->cv);
- while (worker->kick_state == UNKICKED &&
- pollset->shutdown_closure == NULL) {
+ while (worker->kick_state == UNKICKED && !pollset->shutting_down) {
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_log(GPR_ERROR, "PS:%p BEGIN_WAIT:%p kick_state=%s shutdown=%d",
+ pollset, worker, kick_state_string(worker->kick_state),
+ pollset->shutting_down);
+ }
if (gpr_cv_wait(&worker->cv, &pollset->mu, deadline) &&
worker->kick_state == UNKICKED) {
- worker->kick_state = KICKED;
+ SET_KICK_STATE(worker, KICKED);
}
}
*now = gpr_now(now->clock_type);
}
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_log(GPR_ERROR, "PS:%p BEGIN_DONE:%p kick_state=%s shutdown=%d", pollset,
+ worker, kick_state_string(worker->kick_state),
+ pollset->shutting_down);
+ }
- return worker->kick_state == DESIGNATED_POLLER &&
- pollset->shutdown_closure == NULL;
+ return worker->kick_state == DESIGNATED_POLLER && !pollset->shutting_down;
}
static bool check_neighbourhood_for_available_poller(
@@ -591,10 +638,18 @@ static bool check_neighbourhood_for_available_poller(
case UNKICKED:
if (gpr_atm_no_barrier_cas(&g_active_poller, 0,
(gpr_atm)inspect_worker)) {
- inspect_worker->kick_state = DESIGNATED_POLLER;
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_log(GPR_DEBUG, " .. choose next poller to be %p",
+ inspect_worker);
+ }
+ SET_KICK_STATE(inspect_worker, DESIGNATED_POLLER);
if (inspect_worker->initialized_cv) {
gpr_cv_signal(&inspect_worker->cv);
}
+ } else {
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_log(GPR_DEBUG, " .. beaten to choose next poller");
+ }
}
// even if we didn't win the cas, there's a worker, we can stop
found_worker = true;
@@ -607,9 +662,12 @@ static bool check_neighbourhood_for_available_poller(
break;
}
inspect_worker = inspect_worker->next;
- } while (inspect_worker != inspect->root_worker);
+ } while (!found_worker && inspect_worker != inspect->root_worker);
}
if (!found_worker) {
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_log(GPR_DEBUG, " .. mark pollset %p inactive", inspect);
+ }
inspect->seen_inactive = true;
if (inspect == neighbourhood->active_root) {
neighbourhood->active_root =
@@ -627,15 +685,22 @@ static bool check_neighbourhood_for_available_poller(
static void end_worker(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset,
grpc_pollset_worker *worker,
grpc_pollset_worker **worker_hdl) {
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_log(GPR_DEBUG, "PS:%p END_WORKER:%p", pollset, worker);
+ }
if (worker_hdl != NULL) *worker_hdl = NULL;
- worker->kick_state = KICKED;
+ /* Make sure we appear kicked */
+ SET_KICK_STATE(worker, KICKED);
grpc_closure_list_move(&worker->schedule_on_end_work,
&exec_ctx->closure_list);
if (gpr_atm_no_barrier_load(&g_active_poller) == (gpr_atm)worker) {
if (worker->next != worker && worker->next->kick_state == UNKICKED) {
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_log(GPR_DEBUG, " .. choose next poller to be peer %p", worker);
+ }
GPR_ASSERT(worker->next->initialized_cv);
gpr_atm_no_barrier_store(&g_active_poller, (gpr_atm)worker->next);
- worker->next->kick_state = DESIGNATED_POLLER;
+ SET_KICK_STATE(worker->next, DESIGNATED_POLLER);
gpr_cv_signal(&worker->next->cv);
if (grpc_exec_ctx_has_work(exec_ctx)) {
gpr_mu_unlock(&pollset->mu);
@@ -644,9 +709,9 @@ static void end_worker(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset,
}
} else {
gpr_atm_no_barrier_store(&g_active_poller, 0);
- gpr_mu_unlock(&pollset->mu);
size_t poller_neighbourhood_idx =
(size_t)(pollset->neighbourhood - g_neighbourhoods);
+ gpr_mu_unlock(&pollset->mu);
bool found_worker = false;
bool scan_state[MAX_NEIGHBOURHOODS];
for (size_t i = 0; !found_worker && i < g_num_neighbourhoods; i++) {
@@ -682,6 +747,9 @@ static void end_worker(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset,
if (worker->initialized_cv) {
gpr_cv_destroy(&worker->cv);
}
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_log(GPR_DEBUG, " .. remove worker");
+ }
if (EMPTIED == worker_remove(pollset, worker)) {
pollset_maybe_finish_shutdown(exec_ctx, pollset);
}
@@ -702,16 +770,18 @@ static grpc_error *pollset_work(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset,
pollset->kicked_without_poller = false;
return GRPC_ERROR_NONE;
}
- gpr_tls_set(&g_current_thread_pollset, (intptr_t)pollset);
if (begin_worker(pollset, &worker, worker_hdl, &now, deadline)) {
+ gpr_tls_set(&g_current_thread_pollset, (intptr_t)pollset);
gpr_tls_set(&g_current_thread_worker, (intptr_t)&worker);
- GPR_ASSERT(!pollset->shutdown_closure);
+ GPR_ASSERT(!pollset->shutting_down);
GPR_ASSERT(!pollset->seen_inactive);
gpr_mu_unlock(&pollset->mu);
append_error(&error, pollset_epoll(exec_ctx, pollset, now, deadline),
err_desc);
gpr_mu_lock(&pollset->mu);
gpr_tls_set(&g_current_thread_worker, 0);
+ } else {
+ gpr_tls_set(&g_current_thread_pollset, (intptr_t)pollset);
}
end_worker(exec_ctx, pollset, &worker, worker_hdl);
gpr_tls_set(&g_current_thread_pollset, 0);
@@ -720,46 +790,136 @@ static grpc_error *pollset_work(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset,
static grpc_error *pollset_kick(grpc_pollset *pollset,
grpc_pollset_worker *specific_worker) {
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_strvec log;
+ gpr_strvec_init(&log);
+ char *tmp;
+ gpr_asprintf(
+ &tmp, "PS:%p KICK:%p curps=%p curworker=%p root=%p", pollset,
+ specific_worker, (void *)gpr_tls_get(&g_current_thread_pollset),
+ (void *)gpr_tls_get(&g_current_thread_worker), pollset->root_worker);
+ gpr_strvec_add(&log, tmp);
+ if (pollset->root_worker != NULL) {
+ gpr_asprintf(&tmp, " {kick_state=%s next=%p {kick_state=%s}}",
+ kick_state_string(pollset->root_worker->kick_state),
+ pollset->root_worker->next,
+ kick_state_string(pollset->root_worker->next->kick_state));
+ gpr_strvec_add(&log, tmp);
+ }
+ if (specific_worker != NULL) {
+ gpr_asprintf(&tmp, " worker_kick_state=%s",
+ kick_state_string(specific_worker->kick_state));
+ gpr_strvec_add(&log, tmp);
+ }
+ tmp = gpr_strvec_flatten(&log, NULL);
+ gpr_strvec_destroy(&log);
+ gpr_log(GPR_ERROR, "%s", tmp);
+ gpr_free(tmp);
+ }
if (specific_worker == NULL) {
if (gpr_tls_get(&g_current_thread_pollset) != (intptr_t)pollset) {
grpc_pollset_worker *root_worker = pollset->root_worker;
if (root_worker == NULL) {
pollset->kicked_without_poller = true;
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_log(GPR_ERROR, " .. kicked_without_poller");
+ }
return GRPC_ERROR_NONE;
}
grpc_pollset_worker *next_worker = root_worker->next;
- if (root_worker == next_worker &&
- root_worker == (grpc_pollset_worker *)gpr_atm_no_barrier_load(
- &g_active_poller)) {
- root_worker->kick_state = KICKED;
+ if (root_worker->kick_state == KICKED) {
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_log(GPR_ERROR, " .. already kicked %p", root_worker);
+ }
+ SET_KICK_STATE(root_worker, KICKED);
+ return GRPC_ERROR_NONE;
+ } else if (next_worker->kick_state == KICKED) {
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_log(GPR_ERROR, " .. already kicked %p", next_worker);
+ }
+ SET_KICK_STATE(next_worker, KICKED);
+ return GRPC_ERROR_NONE;
+ } else if (root_worker ==
+ next_worker && // only try and wake up a poller if
+ // there is no next worker
+ root_worker == (grpc_pollset_worker *)gpr_atm_no_barrier_load(
+ &g_active_poller)) {
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_log(GPR_ERROR, " .. kicked %p", root_worker);
+ }
+ SET_KICK_STATE(root_worker, KICKED);
return grpc_wakeup_fd_wakeup(&global_wakeup_fd);
} else if (next_worker->kick_state == UNKICKED) {
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_log(GPR_ERROR, " .. kicked %p", next_worker);
+ }
GPR_ASSERT(next_worker->initialized_cv);
- next_worker->kick_state = KICKED;
+ SET_KICK_STATE(next_worker, KICKED);
gpr_cv_signal(&next_worker->cv);
return GRPC_ERROR_NONE;
+ } else if (next_worker->kick_state == DESIGNATED_POLLER) {
+ if (root_worker->kick_state != DESIGNATED_POLLER) {
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_log(
+ GPR_ERROR,
+ " .. kicked root non-poller %p (initialized_cv=%d) (poller=%p)",
+ root_worker, root_worker->initialized_cv, next_worker);
+ }
+ SET_KICK_STATE(root_worker, KICKED);
+ if (root_worker->initialized_cv) {
+ gpr_cv_signal(&root_worker->cv);
+ }
+ return GRPC_ERROR_NONE;
+ } else {
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_log(GPR_ERROR, " .. non-root poller %p (root=%p)", next_worker,
+ root_worker);
+ }
+ SET_KICK_STATE(next_worker, KICKED);
+ return grpc_wakeup_fd_wakeup(&global_wakeup_fd);
+ }
} else {
+ GPR_ASSERT(next_worker->kick_state == KICKED);
+ SET_KICK_STATE(next_worker, KICKED);
return GRPC_ERROR_NONE;
}
} else {
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_log(GPR_ERROR, " .. kicked while waking up");
+ }
return GRPC_ERROR_NONE;
}
} else if (specific_worker->kick_state == KICKED) {
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_log(GPR_ERROR, " .. specific worker already kicked");
+ }
return GRPC_ERROR_NONE;
} else if (gpr_tls_get(&g_current_thread_worker) ==
(intptr_t)specific_worker) {
- specific_worker->kick_state = KICKED;
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_log(GPR_ERROR, " .. mark %p kicked", specific_worker);
+ }
+ SET_KICK_STATE(specific_worker, KICKED);
return GRPC_ERROR_NONE;
} else if (specific_worker ==
(grpc_pollset_worker *)gpr_atm_no_barrier_load(&g_active_poller)) {
- specific_worker->kick_state = KICKED;
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_log(GPR_ERROR, " .. kick active poller");
+ }
+ SET_KICK_STATE(specific_worker, KICKED);
return grpc_wakeup_fd_wakeup(&global_wakeup_fd);
} else if (specific_worker->initialized_cv) {
- specific_worker->kick_state = KICKED;
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_log(GPR_ERROR, " .. kick waiting worker");
+ }
+ SET_KICK_STATE(specific_worker, KICKED);
gpr_cv_signal(&specific_worker->cv);
return GRPC_ERROR_NONE;
} else {
- specific_worker->kick_state = KICKED;
+ if (GRPC_TRACER_ON(grpc_polling_trace)) {
+ gpr_log(GPR_ERROR, " .. kick non-waiting worker");
+ }
+ SET_KICK_STATE(specific_worker, KICKED);
return GRPC_ERROR_NONE;
}
}
@@ -841,9 +1001,6 @@ static const grpc_event_engine_vtable vtable = {
/* It is possible that GLIBC has epoll but the underlying kernel doesn't.
* Create a dummy epoll_fd to make sure epoll support is available */
const grpc_event_engine_vtable *grpc_init_epoll1_linux(bool explicit_request) {
- /* TODO(ctiller): temporary, until this stabilizes */
- if (!explicit_request) return NULL;
-
if (!grpc_has_wakeup_fd()) {
return NULL;
}
@@ -862,6 +1019,8 @@ const grpc_event_engine_vtable *grpc_init_epoll1_linux(bool explicit_request) {
return NULL;
}
+ gpr_log(GPR_ERROR, "grpc epoll fd: %d", g_epfd);
+
return &vtable;
}
diff --git a/src/core/lib/iomgr/ev_epoll_limited_pollers_linux.c b/src/core/lib/iomgr/ev_epoll_limited_pollers_linux.c
index 9f82c480bc..3c03f79ce0 100644
--- a/src/core/lib/iomgr/ev_epoll_limited_pollers_linux.c
+++ b/src/core/lib/iomgr/ev_epoll_limited_pollers_linux.c
@@ -1008,12 +1008,12 @@ static void fd_shutdown(grpc_exec_ctx *exec_ctx, grpc_fd *fd, grpc_error *why) {
static void fd_notify_on_read(grpc_exec_ctx *exec_ctx, grpc_fd *fd,
grpc_closure *closure) {
- grpc_lfev_notify_on(exec_ctx, &fd->read_closure, closure);
+ grpc_lfev_notify_on(exec_ctx, &fd->read_closure, closure, "read");
}
static void fd_notify_on_write(grpc_exec_ctx *exec_ctx, grpc_fd *fd,
grpc_closure *closure) {
- grpc_lfev_notify_on(exec_ctx, &fd->write_closure, closure);
+ grpc_lfev_notify_on(exec_ctx, &fd->write_closure, closure, "write");
}
/*******************************************************************************
@@ -1224,7 +1224,7 @@ 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) {
- grpc_lfev_set_ready(exec_ctx, &fd->read_closure);
+ grpc_lfev_set_ready(exec_ctx, &fd->read_closure, "read");
/* Note, it is possible that fd_become_readable might be called twice with
different 'notifier's when an fd becomes readable and it is in two epoll
@@ -1236,7 +1236,7 @@ static void fd_become_readable(grpc_exec_ctx *exec_ctx, grpc_fd *fd,
}
static void fd_become_writable(grpc_exec_ctx *exec_ctx, grpc_fd *fd) {
- grpc_lfev_set_ready(exec_ctx, &fd->write_closure);
+ grpc_lfev_set_ready(exec_ctx, &fd->write_closure, "write");
}
static void pollset_release_polling_island(grpc_exec_ctx *exec_ctx,
diff --git a/src/core/lib/iomgr/ev_epoll_thread_pool_linux.c b/src/core/lib/iomgr/ev_epoll_thread_pool_linux.c
index 49be72c03e..1058f69a83 100644
--- a/src/core/lib/iomgr/ev_epoll_thread_pool_linux.c
+++ b/src/core/lib/iomgr/ev_epoll_thread_pool_linux.c
@@ -560,12 +560,12 @@ static void fd_shutdown(grpc_exec_ctx *exec_ctx, grpc_fd *fd, grpc_error *why) {
static void fd_notify_on_read(grpc_exec_ctx *exec_ctx, grpc_fd *fd,
grpc_closure *closure) {
- grpc_lfev_notify_on(exec_ctx, &fd->read_closure, closure);
+ grpc_lfev_notify_on(exec_ctx, &fd->read_closure, closure, "read");
}
static void fd_notify_on_write(grpc_exec_ctx *exec_ctx, grpc_fd *fd,
grpc_closure *closure) {
- grpc_lfev_notify_on(exec_ctx, &fd->write_closure, closure);
+ grpc_lfev_notify_on(exec_ctx, &fd->write_closure, closure, "write");
}
/*******************************************************************************
@@ -696,11 +696,11 @@ static void pollset_init(grpc_pollset *pollset, gpr_mu **mu) {
}
static void fd_become_readable(grpc_exec_ctx *exec_ctx, grpc_fd *fd) {
- grpc_lfev_set_ready(exec_ctx, &fd->read_closure);
+ grpc_lfev_set_ready(exec_ctx, &fd->read_closure, "read");
}
static void fd_become_writable(grpc_exec_ctx *exec_ctx, grpc_fd *fd) {
- grpc_lfev_set_ready(exec_ctx, &fd->write_closure);
+ grpc_lfev_set_ready(exec_ctx, &fd->write_closure, "write");
}
static void pollset_release_epoll_set(grpc_exec_ctx *exec_ctx, grpc_pollset *ps,
diff --git a/src/core/lib/iomgr/ev_epollex_linux.c b/src/core/lib/iomgr/ev_epollex_linux.c
index 5574838187..ceecff7a88 100644
--- a/src/core/lib/iomgr/ev_epollex_linux.c
+++ b/src/core/lib/iomgr/ev_epollex_linux.c
@@ -412,12 +412,12 @@ static void fd_shutdown(grpc_exec_ctx *exec_ctx, grpc_fd *fd, grpc_error *why) {
static void fd_notify_on_read(grpc_exec_ctx *exec_ctx, grpc_fd *fd,
grpc_closure *closure) {
- grpc_lfev_notify_on(exec_ctx, &fd->read_closure, closure);
+ grpc_lfev_notify_on(exec_ctx, &fd->read_closure, closure, "read");
}
static void fd_notify_on_write(grpc_exec_ctx *exec_ctx, grpc_fd *fd,
grpc_closure *closure) {
- grpc_lfev_notify_on(exec_ctx, &fd->write_closure, closure);
+ grpc_lfev_notify_on(exec_ctx, &fd->write_closure, closure, "write");
}
/*******************************************************************************
@@ -676,7 +676,7 @@ 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) {
- grpc_lfev_set_ready(exec_ctx, &fd->read_closure);
+ grpc_lfev_set_ready(exec_ctx, &fd->read_closure, "read");
/* Note, it is possible that fd_become_readable might be called twice with
different 'notifier's when an fd becomes readable and it is in two epoll
@@ -688,7 +688,7 @@ static void fd_become_readable(grpc_exec_ctx *exec_ctx, grpc_fd *fd,
}
static void fd_become_writable(grpc_exec_ctx *exec_ctx, grpc_fd *fd) {
- grpc_lfev_set_ready(exec_ctx, &fd->write_closure);
+ grpc_lfev_set_ready(exec_ctx, &fd->write_closure, "write");
}
static grpc_error *fd_become_pollable_locked(grpc_fd *fd) {
diff --git a/src/core/lib/iomgr/ev_epollsig_linux.c b/src/core/lib/iomgr/ev_epollsig_linux.c
index 3c4ca9c7c5..4030f8f135 100644
--- a/src/core/lib/iomgr/ev_epollsig_linux.c
+++ b/src/core/lib/iomgr/ev_epollsig_linux.c
@@ -934,12 +934,12 @@ static void fd_shutdown(grpc_exec_ctx *exec_ctx, grpc_fd *fd, grpc_error *why) {
static void fd_notify_on_read(grpc_exec_ctx *exec_ctx, grpc_fd *fd,
grpc_closure *closure) {
- grpc_lfev_notify_on(exec_ctx, &fd->read_closure, closure);
+ grpc_lfev_notify_on(exec_ctx, &fd->read_closure, closure, "read");
}
static void fd_notify_on_write(grpc_exec_ctx *exec_ctx, grpc_fd *fd,
grpc_closure *closure) {
- grpc_lfev_notify_on(exec_ctx, &fd->write_closure, closure);
+ grpc_lfev_notify_on(exec_ctx, &fd->write_closure, closure, "write");
}
/*******************************************************************************
@@ -1116,7 +1116,7 @@ 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) {
- grpc_lfev_set_ready(exec_ctx, &fd->read_closure);
+ grpc_lfev_set_ready(exec_ctx, &fd->read_closure, "read");
/* Note, it is possible that fd_become_readable might be called twice with
different 'notifier's when an fd becomes readable and it is in two epoll
@@ -1128,7 +1128,7 @@ static void fd_become_readable(grpc_exec_ctx *exec_ctx, grpc_fd *fd,
}
static void fd_become_writable(grpc_exec_ctx *exec_ctx, grpc_fd *fd) {
- grpc_lfev_set_ready(exec_ctx, &fd->write_closure);
+ grpc_lfev_set_ready(exec_ctx, &fd->write_closure, "write");
}
static void pollset_release_polling_island(grpc_exec_ctx *exec_ctx,
@@ -1732,7 +1732,7 @@ const grpc_event_engine_vtable *grpc_init_epollsig_linux(
if (!is_grpc_wakeup_signal_initialized) {
/* TODO(ctiller): when other epoll engines are ready, remove the true || to
* force this to be explitly chosen if needed */
- if (true || explicit_request) {
+ if (explicit_request) {
grpc_use_signal(SIGRTMIN + 6);
} else {
return NULL;
diff --git a/src/core/lib/iomgr/lockfree_event.c b/src/core/lib/iomgr/lockfree_event.c
index c2ceecb3c5..f967b22ba9 100644
--- a/src/core/lib/iomgr/lockfree_event.c
+++ b/src/core/lib/iomgr/lockfree_event.c
@@ -79,12 +79,12 @@ bool grpc_lfev_is_shutdown(gpr_atm *state) {
}
void grpc_lfev_notify_on(grpc_exec_ctx *exec_ctx, gpr_atm *state,
- grpc_closure *closure) {
+ grpc_closure *closure, const char *variable) {
while (true) {
gpr_atm curr = gpr_atm_no_barrier_load(state);
if (GRPC_TRACER_ON(grpc_polling_trace)) {
- gpr_log(GPR_DEBUG, "lfev_notify_on: %p curr=%p closure=%p", state,
- (void *)curr, closure);
+ gpr_log(GPR_ERROR, "lfev_notify_on[%s]: %p curr=%p closure=%p", variable,
+ state, (void *)curr, closure);
}
switch (curr) {
case CLOSURE_NOT_READY: {
@@ -149,7 +149,7 @@ bool grpc_lfev_set_shutdown(grpc_exec_ctx *exec_ctx, gpr_atm *state,
while (true) {
gpr_atm curr = gpr_atm_no_barrier_load(state);
if (GRPC_TRACER_ON(grpc_polling_trace)) {
- gpr_log(GPR_DEBUG, "lfev_set_shutdown: %p curr=%p err=%s", state,
+ gpr_log(GPR_ERROR, "lfev_set_shutdown: %p curr=%p err=%s", state,
(void *)curr, grpc_error_string(shutdown_err));
}
switch (curr) {
@@ -193,12 +193,14 @@ bool grpc_lfev_set_shutdown(grpc_exec_ctx *exec_ctx, gpr_atm *state,
GPR_UNREACHABLE_CODE(return false);
}
-void grpc_lfev_set_ready(grpc_exec_ctx *exec_ctx, gpr_atm *state) {
+void grpc_lfev_set_ready(grpc_exec_ctx *exec_ctx, gpr_atm *state,
+ const char *variable) {
while (true) {
gpr_atm curr = gpr_atm_no_barrier_load(state);
if (GRPC_TRACER_ON(grpc_polling_trace)) {
- gpr_log(GPR_DEBUG, "lfev_set_ready: %p curr=%p", state, (void *)curr);
+ gpr_log(GPR_ERROR, "lfev_set_ready[%s]: %p curr=%p", variable, state,
+ (void *)curr);
}
switch (curr) {
diff --git a/src/core/lib/iomgr/lockfree_event.h b/src/core/lib/iomgr/lockfree_event.h
index ef3844a07a..6a14a0f3b2 100644
--- a/src/core/lib/iomgr/lockfree_event.h
+++ b/src/core/lib/iomgr/lockfree_event.h
@@ -30,10 +30,11 @@ void grpc_lfev_destroy(gpr_atm *state);
bool grpc_lfev_is_shutdown(gpr_atm *state);
void grpc_lfev_notify_on(grpc_exec_ctx *exec_ctx, gpr_atm *state,
- grpc_closure *closure);
+ grpc_closure *closure, const char *variable);
/* Returns true on first successful shutdown */
bool grpc_lfev_set_shutdown(grpc_exec_ctx *exec_ctx, gpr_atm *state,
grpc_error *shutdown_err);
-void grpc_lfev_set_ready(grpc_exec_ctx *exec_ctx, gpr_atm *state);
+void grpc_lfev_set_ready(grpc_exec_ctx *exec_ctx, gpr_atm *state,
+ const char *variable);
#endif /* GRPC_CORE_LIB_IOMGR_LOCKFREE_EVENT_H */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 06:18:35 +0000