diff options
Diffstat (limited to 'src/core/lib/surface/completion_queue.c')
| -rw-r--r-- | src/core/lib/surface/completion_queue.c | 122 |
1 files changed, 96 insertions, 26 deletions
diff --git a/src/core/lib/surface/completion_queue.c b/src/core/lib/surface/completion_queue.c index 1f82c3bad2..5978884db8 100644 --- a/src/core/lib/surface/completion_queue.c +++ b/src/core/lib/surface/completion_queue.c @@ -1,6 +1,6 @@ /* * - * Copyright 2015, Google Inc. + * Copyright 2015-2016, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -48,7 +48,8 @@ #include "src/core/lib/surface/api_trace.h" #include "src/core/lib/surface/call.h" #include "src/core/lib/surface/event_string.h" -#include "src/core/lib/surface/surface_trace.h" + +int grpc_trace_operation_failures; typedef struct { grpc_pollset_worker **worker; @@ -70,6 +71,8 @@ struct grpc_completion_queue { int shutdown; int shutdown_called; int is_server_cq; + /** Can the server cq accept incoming channels */ + int is_non_listening_server_cq; int num_pluckers; plucker pluckers[GRPC_MAX_COMPLETION_QUEUE_PLUCKERS]; grpc_closure pollset_shutdown_done; @@ -84,12 +87,24 @@ struct grpc_completion_queue { }; #define POLLSET_FROM_CQ(cq) ((grpc_pollset *)(cq + 1)) +#define CQ_FROM_POLLSET(ps) (((grpc_completion_queue *)ps) - 1) static gpr_mu g_freelist_mu; static grpc_completion_queue *g_freelist; +int grpc_cq_pluck_trace; +int grpc_cq_event_timeout_trace; + +#define GRPC_SURFACE_TRACE_RETURNED_EVENT(cq, event) \ + if (grpc_api_trace && \ + (grpc_cq_pluck_trace || (event)->type != GRPC_QUEUE_TIMEOUT)) { \ + char *_ev = grpc_event_string(event); \ + gpr_log(GPR_INFO, "RETURN_EVENT[%p]: %s", cq, _ev); \ + gpr_free(_ev); \ + } + static void on_pollset_shutdown_done(grpc_exec_ctx *exec_ctx, void *cc, - bool success); + grpc_error *error); void grpc_cq_global_init(void) { gpr_mu_init(&g_freelist_mu); } @@ -149,6 +164,7 @@ grpc_completion_queue *grpc_completion_queue_create(void *reserved) { cc->shutdown = 0; cc->shutdown_called = 0; cc->is_server_cq = 0; + cc->is_non_listening_server_cq = 0; cc->num_pluckers = 0; #ifndef NDEBUG cc->outstanding_tag_count = 0; @@ -172,7 +188,7 @@ void grpc_cq_internal_ref(grpc_completion_queue *cc) { } static void on_pollset_shutdown_done(grpc_exec_ctx *exec_ctx, void *arg, - bool success) { + grpc_error *error) { grpc_completion_queue *cc = arg; GRPC_CQ_INTERNAL_UNREF(cc, "pollset_destroy"); } @@ -215,7 +231,7 @@ void grpc_cq_begin_op(grpc_completion_queue *cc, void *tag) { event, then enter shutdown mode */ /* Queue a GRPC_OP_COMPLETED operation */ void grpc_cq_end_op(grpc_exec_ctx *exec_ctx, grpc_completion_queue *cc, - void *tag, int success, + void *tag, grpc_error *error, void (*done)(grpc_exec_ctx *exec_ctx, void *done_arg, grpc_cq_completion *storage), void *done_arg, grpc_cq_completion *storage) { @@ -227,16 +243,24 @@ void grpc_cq_end_op(grpc_exec_ctx *exec_ctx, grpc_completion_queue *cc, #endif GPR_TIMER_BEGIN("grpc_cq_end_op", 0); - GRPC_API_TRACE( - "grpc_cq_end_op(exec_ctx=%p, cc=%p, tag=%p, success=%d, done=%p, " - "done_arg=%p, storage=%p)", - 7, (exec_ctx, cc, tag, success, done, done_arg, storage)); + if (grpc_api_trace || + (grpc_trace_operation_failures && error != GRPC_ERROR_NONE)) { + const char *errmsg = grpc_error_string(error); + GRPC_API_TRACE( + "grpc_cq_end_op(exec_ctx=%p, cc=%p, tag=%p, error=%s, done=%p, " + "done_arg=%p, storage=%p)", + 7, (exec_ctx, cc, tag, errmsg, done, done_arg, storage)); + if (grpc_trace_operation_failures && error != GRPC_ERROR_NONE) { + gpr_log(GPR_ERROR, "Operation failed: tag=%p, error=%s", tag, errmsg); + } + grpc_error_free_string(errmsg); + } storage->tag = tag; storage->done = done; storage->done_arg = done_arg; - storage->next = - ((uintptr_t)&cc->completed_head) | ((uintptr_t)(success != 0)); + storage->next = ((uintptr_t)&cc->completed_head) | + ((uintptr_t)(error == GRPC_ERROR_NONE)); gpr_mu_lock(cc->mu); #ifndef NDEBUG @@ -263,8 +287,15 @@ void grpc_cq_end_op(grpc_exec_ctx *exec_ctx, grpc_completion_queue *cc, break; } } - grpc_pollset_kick(POLLSET_FROM_CQ(cc), pluck_worker); + grpc_error *kick_error = + grpc_pollset_kick(POLLSET_FROM_CQ(cc), pluck_worker); gpr_mu_unlock(cc->mu); + if (kick_error != GRPC_ERROR_NONE) { + const char *msg = grpc_error_string(kick_error); + gpr_log(GPR_ERROR, "Kick failed: %s", msg); + grpc_error_free_string(msg); + GRPC_ERROR_UNREF(kick_error); + } } else { cc->completed_tail->next = ((uintptr_t)storage) | (1u & (uintptr_t)cc->completed_tail->next); @@ -278,6 +309,8 @@ void grpc_cq_end_op(grpc_exec_ctx *exec_ctx, grpc_completion_queue *cc, } GPR_TIMER_END("grpc_cq_end_op", 0); + + GRPC_ERROR_UNREF(error); } grpc_event grpc_completion_queue_next(grpc_completion_queue *cc, @@ -293,10 +326,11 @@ grpc_event grpc_completion_queue_next(grpc_completion_queue *cc, GRPC_API_TRACE( "grpc_completion_queue_next(" "cc=%p, " - "deadline=gpr_timespec { tv_sec: %lld, tv_nsec: %d, clock_type: %d }, " + "deadline=gpr_timespec { tv_sec: %" PRId64 + ", tv_nsec: %d, clock_type: %d }, " "reserved=%p)", - 5, (cc, (long long)deadline.tv_sec, (int)deadline.tv_nsec, - (int)deadline.clock_type, reserved)); + 5, (cc, deadline.tv_sec, deadline.tv_nsec, (int)deadline.clock_type, + reserved)); GPR_ASSERT(!reserved); deadline = gpr_convert_clock_type(deadline, GPR_CLOCK_MONOTONIC); @@ -343,8 +377,18 @@ grpc_event grpc_completion_queue_next(grpc_completion_queue *cc, gpr_mu_lock(cc->mu); continue; } else { - grpc_pollset_work(&exec_ctx, POLLSET_FROM_CQ(cc), &worker, now, - iteration_deadline); + grpc_error *err = grpc_pollset_work(&exec_ctx, POLLSET_FROM_CQ(cc), + &worker, now, iteration_deadline); + if (err != GRPC_ERROR_NONE) { + gpr_mu_unlock(cc->mu); + const char *msg = grpc_error_string(err); + gpr_log(GPR_ERROR, "Completion queue next failed: %s", msg); + grpc_error_free_string(msg); + GRPC_ERROR_UNREF(err); + memset(&ret, 0, sizeof(ret)); + ret.type = GRPC_QUEUE_TIMEOUT; + break; + } } } GRPC_SURFACE_TRACE_RETURNED_EVENT(cc, &ret); @@ -392,13 +436,16 @@ grpc_event grpc_completion_queue_pluck(grpc_completion_queue *cc, void *tag, GPR_TIMER_BEGIN("grpc_completion_queue_pluck", 0); - GRPC_API_TRACE( - "grpc_completion_queue_pluck(" - "cc=%p, tag=%p, " - "deadline=gpr_timespec { tv_sec: %lld, tv_nsec: %d, clock_type: %d }, " - "reserved=%p)", - 6, (cc, tag, (long long)deadline.tv_sec, (int)deadline.tv_nsec, - (int)deadline.clock_type, reserved)); + if (grpc_cq_pluck_trace) { + GRPC_API_TRACE( + "grpc_completion_queue_pluck(" + "cc=%p, tag=%p, " + "deadline=gpr_timespec { tv_sec: %" PRId64 + ", tv_nsec: %d, clock_type: %d }, " + "reserved=%p)", + 6, (cc, tag, deadline.tv_sec, deadline.tv_nsec, + (int)deadline.clock_type, reserved)); + } GPR_ASSERT(!reserved); deadline = gpr_convert_clock_type(deadline, GPR_CLOCK_MONOTONIC); @@ -460,8 +507,19 @@ grpc_event grpc_completion_queue_pluck(grpc_completion_queue *cc, void *tag, grpc_exec_ctx_flush(&exec_ctx); gpr_mu_lock(cc->mu); } else { - grpc_pollset_work(&exec_ctx, POLLSET_FROM_CQ(cc), &worker, now, - iteration_deadline); + grpc_error *err = grpc_pollset_work(&exec_ctx, POLLSET_FROM_CQ(cc), + &worker, now, iteration_deadline); + if (err != GRPC_ERROR_NONE) { + del_plucker(cc, tag, &worker); + gpr_mu_unlock(cc->mu); + const char *msg = grpc_error_string(err); + gpr_log(GPR_ERROR, "Completion queue next failed: %s", msg); + grpc_error_free_string(msg); + GRPC_ERROR_UNREF(err); + memset(&ret, 0, sizeof(ret)); + ret.type = GRPC_QUEUE_TIMEOUT; + break; + } } del_plucker(cc, tag, &worker); } @@ -511,6 +569,18 @@ grpc_pollset *grpc_cq_pollset(grpc_completion_queue *cc) { return POLLSET_FROM_CQ(cc); } +grpc_completion_queue *grpc_cq_from_pollset(grpc_pollset *ps) { + return CQ_FROM_POLLSET(ps); +} + +void grpc_cq_mark_non_listening_server_cq(grpc_completion_queue *cc) { + cc->is_non_listening_server_cq = 1; +} + +bool grpc_cq_is_non_listening_server_cq(grpc_completion_queue *cc) { + return (cc->is_non_listening_server_cq == 1); +} + void grpc_cq_mark_server_cq(grpc_completion_queue *cc) { cc->is_server_cq = 1; } int grpc_cq_is_server_cq(grpc_completion_queue *cc) { return cc->is_server_cq; } |