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Diffstat (limited to 'src/core/lib/iomgr/ev_epoll1_linux.c')
-rw-r--r--src/core/lib/iomgr/ev_epoll1_linux.c145
1 files changed, 19 insertions, 126 deletions
diff --git a/src/core/lib/iomgr/ev_epoll1_linux.c b/src/core/lib/iomgr/ev_epoll1_linux.c
index ad69f808cd..66ba601adb 100644
--- a/src/core/lib/iomgr/ev_epoll1_linux.c
+++ b/src/core/lib/iomgr/ev_epoll1_linux.c
@@ -1,33 +1,18 @@
/*
*
- * Copyright 2017, Google Inc.
- * All rights reserved.
+ * Copyright 2017 gRPC authors.
*
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
*
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
+ * http://www.apache.org/licenses/LICENSE-2.0
*
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
*
*/
@@ -58,7 +43,6 @@
#include "src/core/lib/iomgr/iomgr_internal.h"
#include "src/core/lib/iomgr/lockfree_event.h"
#include "src/core/lib/iomgr/wakeup_fd_posix.h"
-#include "src/core/lib/iomgr/workqueue.h"
#include "src/core/lib/profiling/timers.h"
#include "src/core/lib/support/block_annotate.h"
@@ -130,7 +114,9 @@ struct grpc_pollset {
* Pollset-set Declarations
*/
-struct grpc_pollset_set {};
+struct grpc_pollset_set {
+ char unused;
+};
/*******************************************************************************
* Common helpers
@@ -208,8 +194,10 @@ static grpc_fd *fd_create(int fd, const char *name) {
char *fd_name;
gpr_asprintf(&fd_name, "%s fd=%d", name, fd);
grpc_iomgr_register_object(&new_fd->iomgr_object, fd_name);
-#ifdef GRPC_FD_REF_COUNT_DEBUG
- gpr_log(GPR_DEBUG, "FD %d %p create %s", fd, (void *)new_fd, fd_name);
+#ifndef NDEBUG
+ if (GRPC_TRACER_ON(grpc_trace_fd_refcount)) {
+ gpr_log(GPR_DEBUG, "FD %d %p create %s", fd, new_fd, fd_name);
+ }
#endif
gpr_free(fd_name);
@@ -251,7 +239,7 @@ static void fd_orphan(grpc_exec_ctx *exec_ctx, grpc_fd *fd,
close(fd->fd);
}
- grpc_closure_sched(exec_ctx, on_done, GRPC_ERROR_REF(error));
+ GRPC_CLOSURE_SCHED(exec_ctx, on_done, GRPC_ERROR_REF(error));
grpc_iomgr_unregister_object(&fd->iomgr_object);
grpc_lfev_destroy(&fd->read_closure);
@@ -283,10 +271,6 @@ static void fd_notify_on_write(grpc_exec_ctx *exec_ctx, grpc_fd *fd,
grpc_lfev_notify_on(exec_ctx, &fd->write_closure, closure);
}
-static grpc_workqueue *fd_get_workqueue(grpc_fd *fd) {
- return (grpc_workqueue *)0xb0b51ed;
-}
-
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);
@@ -313,8 +297,6 @@ GPR_TLS_DECL(g_current_thread_worker);
static gpr_atm g_active_poller;
static pollset_neighbourhood *g_neighbourhoods;
static size_t g_num_neighbourhoods;
-static gpr_mu g_wq_mu;
-static grpc_closure_list g_wq_items;
/* Return true if first in list */
static bool worker_insert(grpc_pollset *pollset, grpc_pollset_worker *worker) {
@@ -363,8 +345,6 @@ static grpc_error *pollset_global_init(void) {
gpr_atm_no_barrier_store(&g_active_poller, 0);
global_wakeup_fd.read_fd = -1;
grpc_error *err = grpc_wakeup_fd_init(&global_wakeup_fd);
- gpr_mu_init(&g_wq_mu);
- g_wq_items = (grpc_closure_list)GRPC_CLOSURE_LIST_INIT;
if (err != GRPC_ERROR_NONE) return err;
struct epoll_event ev = {.events = (uint32_t)(EPOLLIN | EPOLLET),
.data.ptr = &global_wakeup_fd};
@@ -383,7 +363,6 @@ static grpc_error *pollset_global_init(void) {
static void pollset_global_shutdown(void) {
gpr_tls_destroy(&g_current_thread_pollset);
gpr_tls_destroy(&g_current_thread_worker);
- gpr_mu_destroy(&g_wq_mu);
if (global_wakeup_fd.read_fd != -1) grpc_wakeup_fd_destroy(&global_wakeup_fd);
for (size_t i = 0; i < g_num_neighbourhoods; i++) {
gpr_mu_destroy(&g_neighbourhoods[i].mu);
@@ -450,7 +429,7 @@ static void pollset_maybe_finish_shutdown(grpc_exec_ctx *exec_ctx,
grpc_pollset *pollset) {
if (pollset->shutdown_closure != NULL && pollset->root_worker == NULL &&
pollset->begin_refs == 0) {
- grpc_closure_sched(exec_ctx, pollset->shutdown_closure, GRPC_ERROR_NONE);
+ GRPC_CLOSURE_SCHED(exec_ctx, pollset->shutdown_closure, GRPC_ERROR_NONE);
pollset->shutdown_closure = NULL;
}
}
@@ -507,9 +486,6 @@ static grpc_error *pollset_epoll(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset,
for (int i = 0; i < r; i++) {
void *data_ptr = events[i].data.ptr;
if (data_ptr == &global_wakeup_fd) {
- gpr_mu_lock(&g_wq_mu);
- grpc_closure_list_move(&g_wq_items, &exec_ctx->closure_list);
- gpr_mu_unlock(&g_wq_mu);
append_error(&error, grpc_wakeup_fd_consume_wakeup(&global_wakeup_fd),
err_desc);
} else {
@@ -792,84 +768,6 @@ static void pollset_add_fd(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset,
grpc_fd *fd) {}
/*******************************************************************************
- * Workqueue Definitions
- */
-
-#ifdef GRPC_WORKQUEUE_REFCOUNT_DEBUG
-static grpc_workqueue *workqueue_ref(grpc_workqueue *workqueue,
- const char *file, int line,
- const char *reason) {
- return workqueue;
-}
-
-static void workqueue_unref(grpc_exec_ctx *exec_ctx, grpc_workqueue *workqueue,
- const char *file, int line, const char *reason) {}
-#else
-static grpc_workqueue *workqueue_ref(grpc_workqueue *workqueue) {
- return workqueue;
-}
-
-static void workqueue_unref(grpc_exec_ctx *exec_ctx,
- grpc_workqueue *workqueue) {}
-#endif
-
-static void wq_sched(grpc_exec_ctx *exec_ctx, grpc_closure *closure,
- grpc_error *error) {
- // find a neighbourhood to wakeup
- bool scheduled = false;
- size_t initial_neighbourhood = choose_neighbourhood();
- for (size_t i = 0; !scheduled && i < g_num_neighbourhoods; i++) {
- pollset_neighbourhood *neighbourhood =
- &g_neighbourhoods[(initial_neighbourhood + i) % g_num_neighbourhoods];
- if (gpr_mu_trylock(&neighbourhood->mu)) {
- if (neighbourhood->active_root != NULL) {
- grpc_pollset *inspect = neighbourhood->active_root;
- do {
- if (gpr_mu_trylock(&inspect->mu)) {
- if (inspect->root_worker != NULL) {
- grpc_pollset_worker *inspect_worker = inspect->root_worker;
- do {
- if (inspect_worker->kick_state == UNKICKED) {
- inspect_worker->kick_state = KICKED;
- grpc_closure_list_append(
- &inspect_worker->schedule_on_end_work, closure, error);
- if (inspect_worker->initialized_cv) {
- gpr_cv_signal(&inspect_worker->cv);
- }
- scheduled = true;
- }
- inspect_worker = inspect_worker->next;
- } while (!scheduled && inspect_worker != inspect->root_worker);
- }
- gpr_mu_unlock(&inspect->mu);
- }
- inspect = inspect->next;
- } while (!scheduled && inspect != neighbourhood->active_root);
- }
- gpr_mu_unlock(&neighbourhood->mu);
- }
- }
- if (!scheduled) {
- gpr_mu_lock(&g_wq_mu);
- grpc_closure_list_append(&g_wq_items, closure, error);
- gpr_mu_unlock(&g_wq_mu);
- GRPC_LOG_IF_ERROR("workqueue_scheduler",
- grpc_wakeup_fd_wakeup(&global_wakeup_fd));
- }
-}
-
-static const grpc_closure_scheduler_vtable
- singleton_workqueue_scheduler_vtable = {wq_sched, wq_sched,
- "epoll1_workqueue"};
-
-static grpc_closure_scheduler singleton_workqueue_scheduler = {
- &singleton_workqueue_scheduler_vtable};
-
-static grpc_closure_scheduler *workqueue_scheduler(grpc_workqueue *workqueue) {
- return &singleton_workqueue_scheduler;
-}
-
-/*******************************************************************************
* Pollset-set Definitions
*/
@@ -920,7 +818,6 @@ static const grpc_event_engine_vtable vtable = {
.fd_notify_on_read = fd_notify_on_read,
.fd_notify_on_write = fd_notify_on_write,
.fd_get_read_notifier_pollset = fd_get_read_notifier_pollset,
- .fd_get_workqueue = fd_get_workqueue,
.pollset_init = pollset_init,
.pollset_shutdown = pollset_shutdown,
@@ -938,10 +835,6 @@ static const grpc_event_engine_vtable vtable = {
.pollset_set_add_fd = pollset_set_add_fd,
.pollset_set_del_fd = pollset_set_del_fd,
- .workqueue_ref = workqueue_ref,
- .workqueue_unref = workqueue_unref,
- .workqueue_scheduler = workqueue_scheduler,
-
.shutdown_engine = shutdown_engine,
};
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-15 18:18:10 +0000