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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 ** prshm.c -- NSPR Named Shared Memory | |
| 8 ** | |
| 9 ** lth. Jul-1999. | |
| 10 */ | |
| 11 #include <string.h> | |
| 12 #include "primpl.h" | |
| 13 | |
| 14 extern PRLogModuleInfo *_pr_shm_lm; | |
| 15 | |
| 16 | |
| 17 #if defined PR_HAVE_SYSV_NAMED_SHARED_MEMORY | |
| 18 /* SysV implementation is in pr/src/md/unix/uxshm.c */ | |
| 19 #elif defined PR_HAVE_POSIX_NAMED_SHARED_MEMORY | |
| 20 /* Posix implementation is in pr/src/md/unix/uxshm.c */ | |
| 21 #elif defined PR_HAVE_WIN32_NAMED_SHARED_MEMORY | |
| 22 /* Win32 implementation is in pr/src/md/windows/w32shm.c */ | |
| 23 #else | |
| 24 /* | |
| 25 ** there is no named_shared_memory | |
| 26 */ | |
| 27 extern PRSharedMemory* _MD_OpenSharedMemory( const char *name, PRSize size, PRI
ntn flags, PRIntn mode ) | |
| 28 { | |
| 29 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); | |
| 30 return NULL; | |
| 31 } | |
| 32 | |
| 33 extern void * _MD_AttachSharedMemory( PRSharedMemory *shm, PRIntn flags ) | |
| 34 { | |
| 35 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); | |
| 36 return NULL; | |
| 37 } | |
| 38 | |
| 39 extern PRStatus _MD_DetachSharedMemory( PRSharedMemory *shm, void *addr ) | |
| 40 { | |
| 41 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); | |
| 42 return PR_FAILURE; | |
| 43 } | |
| 44 | |
| 45 extern PRStatus _MD_CloseSharedMemory( PRSharedMemory *shm ) | |
| 46 { | |
| 47 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); | |
| 48 return PR_FAILURE; | |
| 49 } | |
| 50 | |
| 51 extern PRStatus _MD_DeleteSharedMemory( const char *name ) | |
| 52 { | |
| 53 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); | |
| 54 return PR_FAILURE; | |
| 55 } | |
| 56 #endif /* HAVE_SYSV_NAMED_SHARED_MEMORY */ | |
| 57 | |
| 58 /* | |
| 59 ** FUNCTION: PR_OpenSharedMemory() | |
| 60 ** | |
| 61 */ | |
| 62 PR_IMPLEMENT( PRSharedMemory * ) | |
| 63 PR_OpenSharedMemory( | |
| 64 const char *name, | |
| 65 PRSize size, | |
| 66 PRIntn flags, | |
| 67 PRIntn mode | |
| 68 ) | |
| 69 { | |
| 70 if (!_pr_initialized) _PR_ImplicitInitialization(); | |
| 71 return( _PR_MD_OPEN_SHARED_MEMORY( name, size, flags, mode )); | |
| 72 } /* end PR_OpenSharedMemory() */ | |
| 73 | |
| 74 /* | |
| 75 ** FUNCTION: PR_AttachSharedMemory() | |
| 76 ** | |
| 77 */ | |
| 78 PR_IMPLEMENT( void * ) | |
| 79 PR_AttachSharedMemory( | |
| 80 PRSharedMemory *shm, | |
| 81 PRIntn flags | |
| 82 ) | |
| 83 { | |
| 84 return( _PR_MD_ATTACH_SHARED_MEMORY( shm, flags )); | |
| 85 } /* end PR_AttachSharedMemory() */ | |
| 86 | |
| 87 /* | |
| 88 ** FUNCTION: PR_DetachSharedMemory() | |
| 89 ** | |
| 90 */ | |
| 91 PR_IMPLEMENT( PRStatus ) | |
| 92 PR_DetachSharedMemory( | |
| 93 PRSharedMemory *shm, | |
| 94 void *addr | |
| 95 ) | |
| 96 { | |
| 97 return( _PR_MD_DETACH_SHARED_MEMORY( shm, addr )); | |
| 98 } /* end PR_DetachSharedMemory() */ | |
| 99 | |
| 100 /* | |
| 101 ** FUNCTION: PR_CloseSharedMemory() | |
| 102 ** | |
| 103 */ | |
| 104 PR_IMPLEMENT( PRStatus ) | |
| 105 PR_CloseSharedMemory( | |
| 106 PRSharedMemory *shm | |
| 107 ) | |
| 108 { | |
| 109 return( _PR_MD_CLOSE_SHARED_MEMORY( shm )); | |
| 110 } /* end PR_CloseSharedMemory() */ | |
| 111 | |
| 112 /* | |
| 113 ** FUNCTION: PR_DeleteSharedMemory() | |
| 114 ** | |
| 115 */ | |
| 116 PR_EXTERN( PRStatus ) | |
| 117 PR_DeleteSharedMemory( | |
| 118 const char *name | |
| 119 ) | |
| 120 { | |
| 121 if (!_pr_initialized) _PR_ImplicitInitialization(); | |
| 122 return(_PR_MD_DELETE_SHARED_MEMORY( name )); | |
| 123 } /* end PR_DestroySharedMemory() */ | |
| 124 /* end prshm.c */ | |
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