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      1 /*
      2  *
      3  * Copyright 2015 gRPC authors.
      4  *
      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
      8  *
      9  *     http://www.apache.org/licenses/LICENSE-2.0
     10  *
     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.
     16  *
     17  */
     18 
     19 #ifndef GRPC_CORE_LIB_GPR_TLS_GCC_H
     20 #define GRPC_CORE_LIB_GPR_TLS_GCC_H
     21 
     22 #include <grpc/support/port_platform.h>
     23 
     24 #include <stdbool.h>
     25 
     26 #include <grpc/support/log.h>
     27 
     28 /** Thread local storage based on gcc compiler primitives.
     29    #include tls.h to use this - and see that file for documentation */
     30 
     31 struct gpr_gcc_thread_local {
     32   intptr_t value;
     33 };
     34 
     35 #define GPR_TLS_DECL(name) \
     36   static __thread struct gpr_gcc_thread_local name = {0}
     37 
     38 #define GPR_TLS_CLASS_DECL(name) \
     39   static __thread struct gpr_gcc_thread_local name
     40 
     41 #define GPR_TLS_CLASS_DEF(name) __thread struct gpr_gcc_thread_local name = {0}
     42 
     43 #define gpr_tls_init(tls) \
     44   do {                    \
     45   } while (0)
     46 #define gpr_tls_destroy(tls) \
     47   do {                       \
     48   } while (0)
     49 #define gpr_tls_set(tls, new_value) (((tls)->value) = (new_value))
     50 #define gpr_tls_get(tls) ((tls)->value)
     51 
     52 #endif /* GRPC_CORE_LIB_GPR_TLS_GCC_H */
     53