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-rw-r--r--src/core/lib/iomgr/workqueue_posix.c196
1 files changed, 0 insertions, 196 deletions
diff --git a/src/core/lib/iomgr/workqueue_posix.c b/src/core/lib/iomgr/workqueue_posix.c
deleted file mode 100644
index ecfea68f56..0000000000
--- a/src/core/lib/iomgr/workqueue_posix.c
+++ /dev/null
@@ -1,196 +0,0 @@
-/*
- *
- * Copyright 2015, Google Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * * 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.
- *
- * 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.
- *
- */
-
-#include <grpc/support/port_platform.h>
-
-#ifdef GPR_POSIX_SOCKET
-
-#include "src/core/lib/iomgr/workqueue.h"
-
-#include <stdio.h>
-
-#include <grpc/support/alloc.h>
-#include <grpc/support/log.h>
-#include <grpc/support/useful.h>
-
-#include "src/core/lib/iomgr/ev_posix.h"
-#include "src/core/lib/profiling/timers.h"
-
-static void on_readable(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error);
-
-grpc_error *grpc_workqueue_create(grpc_exec_ctx *exec_ctx,
- grpc_workqueue **workqueue) {
- char name[32];
- *workqueue = gpr_malloc(sizeof(grpc_workqueue));
- gpr_ref_init(&(*workqueue)->refs, 1);
- gpr_atm_no_barrier_store(&(*workqueue)->state, 1);
- grpc_error *err = grpc_wakeup_fd_init(&(*workqueue)->wakeup_fd);
- if (err != GRPC_ERROR_NONE) {
- gpr_free(*workqueue);
- return err;
- }
- sprintf(name, "workqueue:%p", (void *)(*workqueue));
- (*workqueue)->wakeup_read_fd = grpc_fd_create(
- GRPC_WAKEUP_FD_GET_READ_FD(&(*workqueue)->wakeup_fd), name);
- gpr_mpscq_init(&(*workqueue)->queue);
- grpc_closure_init(&(*workqueue)->read_closure, on_readable, *workqueue);
- grpc_fd_notify_on_read(exec_ctx, (*workqueue)->wakeup_read_fd,
- &(*workqueue)->read_closure);
- return GRPC_ERROR_NONE;
-}
-
-static void workqueue_destroy(grpc_exec_ctx *exec_ctx,
- grpc_workqueue *workqueue) {
- grpc_fd_shutdown(exec_ctx, workqueue->wakeup_read_fd);
-}
-
-static void workqueue_orphan(grpc_exec_ctx *exec_ctx,
- grpc_workqueue *workqueue) {
- if (gpr_atm_full_fetch_add(&workqueue->state, -1) == 1) {
- workqueue_destroy(exec_ctx, workqueue);
- }
-}
-
-#ifdef GRPC_WORKQUEUE_REFCOUNT_DEBUG
-void grpc_workqueue_ref(grpc_workqueue *workqueue, const char *file, int line,
- const char *reason) {
- if (workqueue == NULL) return;
- gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "WORKQUEUE:%p ref %d -> %d %s",
- workqueue, (int)workqueue->refs.count, (int)workqueue->refs.count + 1,
- reason);
- gpr_ref(&workqueue->refs);
-}
-#else
-void grpc_workqueue_ref(grpc_workqueue *workqueue) {
- if (workqueue == NULL) return;
- gpr_ref(&workqueue->refs);
-}
-#endif
-
-#ifdef GRPC_WORKQUEUE_REFCOUNT_DEBUG
-void grpc_workqueue_unref(grpc_exec_ctx *exec_ctx, grpc_workqueue *workqueue,
- const char *file, int line, const char *reason) {
- if (workqueue == NULL) return;
- gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "WORKQUEUE:%p unref %d -> %d %s",
- workqueue, (int)workqueue->refs.count, (int)workqueue->refs.count - 1,
- reason);
- if (gpr_unref(&workqueue->refs)) {
- workqueue_orphan(exec_ctx, workqueue);
- }
-}
-#else
-void grpc_workqueue_unref(grpc_exec_ctx *exec_ctx, grpc_workqueue *workqueue) {
- if (workqueue == NULL) return;
- if (gpr_unref(&workqueue->refs)) {
- workqueue_orphan(exec_ctx, workqueue);
- }
-}
-#endif
-
-static void drain(grpc_exec_ctx *exec_ctx, grpc_workqueue *workqueue) {
- abort();
-}
-
-static void wakeup(grpc_exec_ctx *exec_ctx, grpc_workqueue *workqueue) {
- GPR_TIMER_MARK("workqueue.wakeup", 0);
- grpc_error *err = grpc_wakeup_fd_wakeup(&workqueue->wakeup_fd);
- if (!GRPC_LOG_IF_ERROR("wakeupfd_wakeup", err)) {
- drain(exec_ctx, workqueue);
- }
-}
-
-static void on_readable(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) {
- GPR_TIMER_BEGIN("workqueue.on_readable", 0);
-
- grpc_workqueue *workqueue = arg;
-
- if (error != GRPC_ERROR_NONE) {
- /* HACK: let wakeup_fd code know that we stole the fd */
- workqueue->wakeup_fd.read_fd = 0;
- grpc_wakeup_fd_destroy(&workqueue->wakeup_fd);
- grpc_fd_orphan(exec_ctx, workqueue->wakeup_read_fd, NULL, NULL, "destroy");
- GPR_ASSERT(gpr_atm_no_barrier_load(&workqueue->state) == 0);
- gpr_free(workqueue);
- } else {
- error = grpc_wakeup_fd_consume_wakeup(&workqueue->wakeup_fd);
- gpr_mpscq_node *n = gpr_mpscq_pop(&workqueue->queue);
- if (error == GRPC_ERROR_NONE) {
- grpc_fd_notify_on_read(exec_ctx, workqueue->wakeup_read_fd,
- &workqueue->read_closure);
- } else {
- /* recurse to get error handling */
- on_readable(exec_ctx, arg, error);
- }
- if (n == NULL) {
- /* try again - queue in an inconsistant state */
- wakeup(exec_ctx, workqueue);
- } else {
- switch (gpr_atm_full_fetch_add(&workqueue->state, -2)) {
- case 3: // had one count, one unorphaned --> done, unorphaned
- break;
- case 2: // had one count, one orphaned --> done, orphaned
- workqueue_destroy(exec_ctx, workqueue);
- break;
- case 1:
- case 0:
- // these values are illegal - representing an already done or
- // deleted workqueue
- GPR_UNREACHABLE_CODE(break);
- default:
- // schedule a wakeup since there's more to do
- wakeup(exec_ctx, workqueue);
- }
- grpc_closure *cl = (grpc_closure *)n;
- grpc_error *clerr = cl->error;
- cl->cb(exec_ctx, cl->cb_arg, clerr);
- GRPC_ERROR_UNREF(clerr);
- }
- }
-
- GPR_TIMER_END("workqueue.on_readable", 0);
-}
-
-void grpc_workqueue_enqueue(grpc_exec_ctx *exec_ctx, grpc_workqueue *workqueue,
- grpc_closure *closure, grpc_error *error) {
- GPR_TIMER_BEGIN("workqueue.enqueue", 0);
- gpr_atm last = gpr_atm_full_fetch_add(&workqueue->state, 2);
- GPR_ASSERT(last & 1);
- closure->error = error;
- gpr_mpscq_push(&workqueue->queue, &closure->next_data.atm_next);
- if (last == 1) {
- wakeup(exec_ctx, workqueue);
- }
- GPR_TIMER_END("workqueue.enqueue", 0);
-}
-
-#endif /* GPR_POSIX_SOCKET */
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