3 * Copyright 2015 gRPC authors.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
19 #ifndef GRPC_CORE_LIB_GPR_TLS_PTHREAD_H
20 #define GRPC_CORE_LIB_GPR_TLS_PTHREAD_H
22 #include <grpc/support/port_platform.h>
24 #include <grpc/support/log.h> /* for GPR_ASSERT */
27 /** Thread local storage based on pthread library calls.
28 #include tls.h to use this - and see that file for documentation */
30 struct gpr_pthread_thread_local {
34 /** Use GPR_TLS_DECL to declare tls static variables outside a class */
35 #define GPR_TLS_DECL(name) static struct gpr_pthread_thread_local name = {0}
37 /** Use GPR_TLS_CLASS_DECL to declare tls static variable members of a class.
38 * GPR_TLS_CLASS_DEF needs to be called to define this member. */
39 #define GPR_TLS_CLASS_DECL(name) static struct gpr_pthread_thread_local name
41 /** Use GPR_TLS_CLASS_DEF to declare tls static variable members of a class.
42 * GPR_TLS_CLASS_DEF needs to be called to define this member. */
43 #define GPR_TLS_CLASS_DEF(name) struct gpr_pthread_thread_local name = {0}
45 #define gpr_tls_init(tls) GPR_ASSERT(0 == pthread_key_create(&(tls)->key, NULL))
46 #define gpr_tls_destroy(tls) pthread_key_delete((tls)->key)
47 #define gpr_tls_get(tls) ((intptr_t)pthread_getspecific((tls)->key))
51 intptr_t gpr_tls_set(struct gpr_pthread_thread_local* tls, intptr_t value);
56 #endif /* GRPC_CORE_LIB_GPR_TLS_PTHREAD_H */