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_SUPPORT_SYNC_POSIX_H
20 #define GRPC_SUPPORT_SYNC_POSIX_H
21 
22 #include <grpc/support/port_platform.h>
23 
24 #include <pthread.h>
25 
26 #include <grpc/support/sync_generic.h>
27 
28 #ifdef GRPC_ASAN_ENABLED
29 /* The member |leak_checker| is used to check whether there is a memory leak
30  * caused by upper layer logic that's missing the |gpr_xx_destroy| call
31  * to the object before freeing it.
32  * This issue was reported at https://github.com/grpc/grpc/issues/17563
33  * and discussed at https://github.com/grpc/grpc/pull/17586
34  */
35 typedef struct {
36   pthread_mutex_t mutex;
37   int* leak_checker;
38 } gpr_mu;
39 
40 typedef struct {
41   pthread_cond_t cond_var;
42   int* leak_checker;
43 } gpr_cv;
44 #else
45 typedef pthread_mutex_t gpr_mu;
46 typedef pthread_cond_t gpr_cv;
47 #endif
48 typedef pthread_once_t gpr_once;
49 
50 #define GPR_ONCE_INIT PTHREAD_ONCE_INIT
51 
52 #endif /* GRPC_SUPPORT_SYNC_POSIX_H */
53