GRPC Core 0.10.0.0

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tls.h
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1 /*
2 *
3 * Copyright 2015, Google Inc.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met:
9 *
10 * * Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * * Redistributions in binary form must reproduce the above
13 * copyright notice, this list of conditions and the following disclaimer
14 * in the documentation and/or other materials provided with the
15 * distribution.
16 * * Neither the name of Google Inc. nor the names of its
17 * contributors may be used to endorse or promote products derived from
18 * this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 *
32 */
33
34 #ifndef GRPC_SUPPORT_TLS_H
35 #define GRPC_SUPPORT_TLS_H
36
37 #include <grpc/support/port_platform.h>
38
39 /* Thread local storage.
40
41 A minimal wrapper that should be implementable across many compilers,
42 and implementable efficiently across most modern compilers.
43
44 Thread locals have type gpr_intptr.
45
46 Declaring a thread local variable 'foo':
47 GPR_TLS_DECL(foo);
48 Thread locals always have static scope.
49
50 Initializing a thread local (must be done at library initialization
51 time):
52 gpr_tls_init(&foo);
53
54 Destroying a thread local:
55 gpr_tls_destroy(&foo);
56
57 Setting a thread local (returns new_value):
58 gpr_tls_set(&foo, new_value);
59
60 Accessing a thread local:
61 current_value = gpr_tls_get(&foo, value);
62
63 ALL functions here may be implemented as macros. */
64
65 #ifdef GPR_GCC_TLS
66 #include <grpc/support/tls_gcc.h>
67 #endif
68
69 #ifdef GPR_MSVC_TLS
70 #include <grpc/support/tls_msvc.h>
71 #endif
72
73 #ifdef GPR_PTHREAD_TLS
74 #include <grpc/support/tls_pthread.h>
75 #endif
76
77 #endif
port_platform.h
tls_pthread.h
tls_msvc.h
tls_gcc.h