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Side by Side Diff: nspr/pr/src/misc/pripcsem.c

Issue 2078763002: Delete bundled copy of NSS and replace with README. (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/nss@master
Patch Set: Delete bundled copy of NSS and replace with README. Created 4 years, 6 months ago
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1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
5
6 /*
7 * File: pripcsem.c
8 *
9 * Description: implements the named semaphores API in prsemipc.h
10 * for classic NSPR. If _PR_HAVE_NAMED_SEMAPHORES is not defined,
11 * the named semaphore functions all fail with the error code
12 * PR_NOT_IMPLEMENTED_ERROR.
13 */
14
15 #include "primpl.h"
16
17 #ifdef _PR_PTHREADS
18
19 #error "This file should not be compiled for the pthreads version"
20
21 #else
22
23 #ifndef _PR_HAVE_NAMED_SEMAPHORES
24
25 PRSem * _PR_MD_OPEN_SEMAPHORE(
26 const char *osname, PRIntn flags, PRIntn mode, PRUintn value)
27 {
28 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
29 return NULL;
30 }
31
32 PRStatus _PR_MD_WAIT_SEMAPHORE(PRSem *sem)
33 {
34 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
35 return PR_FAILURE;
36 }
37
38 PRStatus _PR_MD_POST_SEMAPHORE(PRSem *sem)
39 {
40 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
41 return PR_FAILURE;
42 }
43
44 PRStatus _PR_MD_CLOSE_SEMAPHORE(PRSem *sem)
45 {
46 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
47 return PR_FAILURE;
48 }
49
50 PRStatus _PR_MD_DELETE_SEMAPHORE(const char *osname)
51 {
52 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
53 return PR_FAILURE;
54 }
55
56 #endif /* !_PR_HAVE_NAMED_SEMAPHORES */
57
58 PR_IMPLEMENT(PRSem *) PR_OpenSemaphore(
59 const char *name, PRIntn flags, PRIntn mode, PRUintn value)
60 {
61 char osname[PR_IPC_NAME_SIZE];
62
63 if (!_pr_initialized) _PR_ImplicitInitialization();
64 if (_PR_MakeNativeIPCName(name, osname, sizeof(osname), _PRIPCSem)
65 == PR_FAILURE) {
66 return NULL;
67 }
68 return _PR_MD_OPEN_SEMAPHORE(osname, flags, mode, value);
69 }
70
71 PR_IMPLEMENT(PRStatus) PR_WaitSemaphore(PRSem *sem)
72 {
73 return _PR_MD_WAIT_SEMAPHORE(sem);
74 }
75
76 PR_IMPLEMENT(PRStatus) PR_PostSemaphore(PRSem *sem)
77 {
78 return _PR_MD_POST_SEMAPHORE(sem);
79 }
80
81 PR_IMPLEMENT(PRStatus) PR_CloseSemaphore(PRSem *sem)
82 {
83 return _PR_MD_CLOSE_SEMAPHORE(sem);
84 }
85
86 PR_IMPLEMENT(PRStatus) PR_DeleteSemaphore(const char *name)
87 {
88 char osname[PR_IPC_NAME_SIZE];
89
90 if (!_pr_initialized) _PR_ImplicitInitialization();
91 if (_PR_MakeNativeIPCName(name, osname, sizeof(osname), _PRIPCSem)
92 == PR_FAILURE) {
93 return PR_FAILURE;
94 }
95 return _PR_MD_DELETE_SEMAPHORE(osname);
96 }
97
98 #endif /* _PR_PTHREADS */
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