diff options
| -rw-r--r-- | build.yaml | 1 | ||||
| -rw-r--r-- | src/core/lib/iomgr/ev_posix.cc | 41 | ||||
| -rw-r--r-- | src/core/lib/iomgr/ev_posix.h | 10 | ||||
| -rw-r--r-- | test/cpp/microbenchmarks/bm_cq_multiple_threads.cc | 28 | ||||
| -rw-r--r-- | tools/run_tests/generated/tests.json | 2 |
5 files changed, 53 insertions, 29 deletions
diff --git a/build.yaml b/build.yaml index 70af96046c..53c93c2b16 100644 --- a/build.yaml +++ b/build.yaml @@ -4106,6 +4106,7 @@ targets: - mac - linux - posix + uses_polling: false - name: bm_error build: test language: c++ diff --git a/src/core/lib/iomgr/ev_posix.cc b/src/core/lib/iomgr/ev_posix.cc index 0e45fc42ca..c30614e7e5 100644 --- a/src/core/lib/iomgr/ev_posix.cc +++ b/src/core/lib/iomgr/ev_posix.cc @@ -101,10 +101,15 @@ const grpc_event_engine_vtable* init_non_polling(bool explicit_request) { } } // namespace -static const event_engine_factory g_factories[] = { +#define ENGINE_HEAD_CUSTOM "head_custom" +#define ENGINE_TAIL_CUSTOM "tail_custom" + +static event_engine_factory g_factories[] = { + {ENGINE_HEAD_CUSTOM, nullptr}, {ENGINE_HEAD_CUSTOM, nullptr}, {"epollex", grpc_init_epollex_linux}, {"epoll1", grpc_init_epoll1_linux}, {"epollsig", grpc_init_epollsig_linux}, {"poll", grpc_init_poll_posix}, {"poll-cv", grpc_init_poll_cv_posix}, {"none", init_non_polling}, + {ENGINE_TAIL_CUSTOM, nullptr}, {ENGINE_TAIL_CUSTOM, nullptr}, }; static void add(const char* beg, const char* end, char*** ss, size_t* ns) { @@ -138,7 +143,7 @@ static bool is(const char* want, const char* have) { static void try_engine(const char* engine) { for (size_t i = 0; i < GPR_ARRAY_SIZE(g_factories); i++) { - if (is(engine, g_factories[i].name)) { + if (g_factories[i].factory != nullptr && is(engine, g_factories[i].name)) { if ((g_event_engine = g_factories[i].factory( 0 == strcmp(engine, g_factories[i].name)))) { g_poll_strategy_name = g_factories[i].name; @@ -149,14 +154,32 @@ static void try_engine(const char* engine) { } } -/* This should be used for testing purposes ONLY */ -void grpc_set_event_engine_test_only( - const grpc_event_engine_vtable* ev_engine) { - g_event_engine = ev_engine; -} +/* Call this before calling grpc_event_engine_init() */ +void grpc_register_event_engine_factory(const char* name, + event_engine_factory_fn factory, + bool add_at_head) { + const char* custom_match = + add_at_head ? ENGINE_HEAD_CUSTOM : ENGINE_TAIL_CUSTOM; + + // Overwrite an existing registration if already registered + for (size_t i = 0; i < GPR_ARRAY_SIZE(g_factories); i++) { + if (0 == strcmp(name, g_factories[i].name)) { + g_factories[i].factory = factory; + return; + } + } + + // Otherwise fill in an available custom slot + for (size_t i = 0; i < GPR_ARRAY_SIZE(g_factories); i++) { + if (0 == strcmp(g_factories[i].name, custom_match)) { + g_factories[i].name = name; + g_factories[i].factory = factory; + return; + } + } -const grpc_event_engine_vtable* grpc_get_event_engine_test_only() { - return g_event_engine; + // Otherwise fail + GPR_ASSERT(false); } /* Call this only after calling grpc_event_engine_init() */ diff --git a/src/core/lib/iomgr/ev_posix.h b/src/core/lib/iomgr/ev_posix.h index 8d0bcc0710..b8fb8f534b 100644 --- a/src/core/lib/iomgr/ev_posix.h +++ b/src/core/lib/iomgr/ev_posix.h @@ -82,6 +82,11 @@ typedef struct grpc_event_engine_vtable { void (*shutdown_engine)(void); } grpc_event_engine_vtable; +/* register a new event engine factory */ +void grpc_register_event_engine_factory( + const char* name, const grpc_event_engine_vtable* (*factory)(bool), + bool add_at_head); + void grpc_event_engine_init(void); void grpc_event_engine_shutdown(void); @@ -173,9 +178,4 @@ void grpc_pollset_set_del_fd(grpc_pollset_set* pollset_set, grpc_fd* fd); typedef int (*grpc_poll_function_type)(struct pollfd*, nfds_t, int); extern grpc_poll_function_type grpc_poll_function; -/* WARNING: The following two functions should be used for testing purposes - * ONLY */ -void grpc_set_event_engine_test_only(const grpc_event_engine_vtable*); -const grpc_event_engine_vtable* grpc_get_event_engine_test_only(); - #endif /* GRPC_CORE_LIB_IOMGR_EV_POSIX_H */ diff --git a/test/cpp/microbenchmarks/bm_cq_multiple_threads.cc b/test/cpp/microbenchmarks/bm_cq_multiple_threads.cc index da095c3e68..2f66a6d53e 100644 --- a/test/cpp/microbenchmarks/bm_cq_multiple_threads.cc +++ b/test/cpp/microbenchmarks/bm_cq_multiple_threads.cc @@ -37,12 +37,9 @@ struct grpc_pollset { namespace grpc { namespace testing { -auto& force_library_initialization = Library::get(); - static void* g_tag = (void*)static_cast<intptr_t>(10); // Some random number static grpc_completion_queue* g_cq; static grpc_event_engine_vtable g_vtable; -static const grpc_event_engine_vtable* g_old_vtable; static void pollset_shutdown(grpc_pollset* ps, grpc_closure* closure) { GRPC_CLOSURE_SCHED(closure, GRPC_ERROR_NONE); @@ -83,7 +80,7 @@ static grpc_error* pollset_work(grpc_pollset* ps, grpc_pollset_worker** worker, return GRPC_ERROR_NONE; } -static void init_engine_vtable() { +static const grpc_event_engine_vtable* init_engine_vtable(bool) { memset(&g_vtable, 0, sizeof(g_vtable)); g_vtable.pollset_size = sizeof(grpc_pollset); @@ -92,17 +89,23 @@ static void init_engine_vtable() { g_vtable.pollset_destroy = pollset_destroy; g_vtable.pollset_work = pollset_work; g_vtable.pollset_kick = pollset_kick; + g_vtable.shutdown_engine = [] {}; + + return &g_vtable; } static void setup() { - grpc_init(); + // This test should only ever be run with a non or any polling engine + // Override the polling engine for the non-polling engine + // and add a custom polling engine + grpc_register_event_engine_factory("none", init_engine_vtable, false); + grpc_register_event_engine_factory("bm_cq_multiple_threads", + init_engine_vtable, true); - /* Override the event engine with our test event engine (g_vtable); but before - * that, save the current event engine in g_old_vtable. We will have to set - * g_old_vtable back before calling grpc_shutdown() */ - init_engine_vtable(); - g_old_vtable = grpc_get_event_engine_test_only(); - grpc_set_event_engine_test_only(&g_vtable); + grpc_init(); + GPR_ASSERT(strcmp(grpc_get_poll_strategy_name(), "none") == 0 || + strcmp(grpc_get_poll_strategy_name(), "bm_cq_multiple_threads") == + 0); g_cq = grpc_completion_queue_create_for_next(nullptr); } @@ -118,9 +121,6 @@ static void teardown() { } grpc_completion_queue_destroy(g_cq); - - /* Restore the old event engine before calling grpc_shutdown */ - grpc_set_event_engine_test_only(g_old_vtable); grpc_shutdown(); } diff --git a/tools/run_tests/generated/tests.json b/tools/run_tests/generated/tests.json index cf3b54e044..03e809c298 100644 --- a/tools/run_tests/generated/tests.json +++ b/tools/run_tests/generated/tests.json @@ -3483,7 +3483,7 @@ "mac", "posix" ], - "uses_polling": true + "uses_polling": false }, { "args": [], |