The Tor Browser: nsprpub/pr/src/memory/prshm.c@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     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/. */

     6 /*

     7 ** prshm.c -- NSPR Named Shared Memory

     8 **

     9 ** lth. Jul-1999.

    10 */

    11 #include <string.h>

    12 #include "primpl.h"

    14 extern PRLogModuleInfo *_pr_shm_lm;

    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, PRIntn flags, PRIntn mode )

    28 {

    29     PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);

    30     return NULL;

    31 }

    33 extern void * _MD_AttachSharedMemory( PRSharedMemory *shm, PRIntn flags )

    34 {

    35     PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);

    36     return NULL;

    37 }

    39 extern PRStatus _MD_DetachSharedMemory( PRSharedMemory *shm, void *addr )

    40 {

    41     PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);

    42     return PR_FAILURE;

    43 }

    45 extern PRStatus _MD_CloseSharedMemory( PRSharedMemory *shm )

    46 {

    47     PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);

    48     return PR_FAILURE;

    49 }

    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 */

    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() */

    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() */

    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() */

   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() */

   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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