| /* |
| * |
| * 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. |
| * |
| */ |
| |
| /* Posix implementation for gpr threads. */ |
| |
| #include <grpc/support/port_platform.h> |
| |
| #ifdef GPR_POSIX_SYNC |
| |
| #include <pthread.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <grpc/support/alloc.h> |
| #include <grpc/support/log.h> |
| #include <grpc/support/thd.h> |
| #include <grpc/support/useful.h> |
| |
| struct thd_arg { |
| void (*body)(void *arg); /* body of a thread */ |
| void *arg; /* argument to a thread */ |
| }; |
| |
| /* Body of every thread started via gpr_thd_new. */ |
| static void *thread_body(void *v) { |
| struct thd_arg a = *(struct thd_arg *)v; |
| free(v); |
| (*a.body)(a.arg); |
| return NULL; |
| } |
| |
| int gpr_thd_new(gpr_thd_id *t, void (*thd_body)(void *arg), void *arg, |
| const gpr_thd_options *options) { |
| int thread_started; |
| pthread_attr_t attr; |
| pthread_t p; |
| /* don't use gpr_malloc as we may cause an infinite recursion with |
| * the profiling code */ |
| struct thd_arg *a = malloc(sizeof(*a)); |
| GPR_ASSERT(a != NULL); |
| a->body = thd_body; |
| a->arg = arg; |
| |
| GPR_ASSERT(pthread_attr_init(&attr) == 0); |
| if (gpr_thd_options_is_detached(options)) { |
| GPR_ASSERT(pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED) == |
| 0); |
| } else { |
| GPR_ASSERT(pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE) == |
| 0); |
| } |
| thread_started = (pthread_create(&p, &attr, &thread_body, a) == 0); |
| GPR_ASSERT(pthread_attr_destroy(&attr) == 0); |
| if (!thread_started) { |
| free(a); |
| } |
| *t = (gpr_thd_id)p; |
| return thread_started; |
| } |
| |
| gpr_thd_id gpr_thd_currentid(void) { return (gpr_thd_id)pthread_self(); } |
| |
| void gpr_thd_join(gpr_thd_id t) { pthread_join((pthread_t)t, NULL); } |
| |
| #endif /* GPR_POSIX_SYNC */ |