Delete bundled copy of NSS and replace with README.

nspr/pr/src/md/windows/w32shm.c

Index: nspr/pr/src/md/windows/w32shm.c
diff --git a/nspr/pr/src/md/windows/w32shm.c b/nspr/pr/src/md/windows/w32shm.c
deleted file mode 100644
index 8e8b1d684253dbb761e99a2687a78ea4dc166df0..0000000000000000000000000000000000000000
--- a/nspr/pr/src/md/windows/w32shm.c
+++ /dev/null
@@ -1,347 +0,0 @@
-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include <private/primpl.h>       
-#include <string.h>
-#include <prshm.h>
-#include <prerr.h>
-#include <prmem.h>
-
-#if defined(PR_HAVE_WIN32_NAMED_SHARED_MEMORY)
-
-extern PRLogModuleInfo *_pr_shm_lm;
-
-/*
- * NSPR-to-NT access right mapping table for file-mapping objects.
- *
- * The OR of these three access masks must equal FILE_MAP_ALL_ACCESS.
- * This is because if a file-mapping object with the specified name
- * exists, CreateFileMapping requests full access to the existing
- * object.
- */
-static DWORD filemapAccessTable[] = {
-    FILE_MAP_ALL_ACCESS & ~FILE_MAP_WRITE, /* read */
-    FILE_MAP_ALL_ACCESS & ~FILE_MAP_READ, /* write */ 
-    0  /* execute */
-};
-
-extern PRSharedMemory * _MD_OpenSharedMemory( 
-        const char *name,
-        PRSize      size,
-        PRIntn      flags,
-        PRIntn      mode
-)
-{
-    char        ipcname[PR_IPC_NAME_SIZE];
-    PRStatus    rc = PR_SUCCESS;
-    DWORD dwHi, dwLo;
-    PRSharedMemory *shm;
-    DWORD flProtect = ( PAGE_READWRITE );
-    SECURITY_ATTRIBUTES sa;
-    LPSECURITY_ATTRIBUTES lpSA = NULL;
-    PSECURITY_DESCRIPTOR pSD = NULL;
-    PACL pACL = NULL;
-
-    rc = _PR_MakeNativeIPCName( name, ipcname, PR_IPC_NAME_SIZE, _PRIPCShm );
-    if ( PR_FAILURE == rc )
-    {
-        PR_SetError(PR_UNKNOWN_ERROR, 0 );
-        PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, ( "PR_OpenSharedMemory: name is invalid")); 
-        return(NULL);
-    }
-
-    shm = PR_NEWZAP( PRSharedMemory );
-    if ( NULL == shm ) 
-    {
-        PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0 );
-        PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, ( "PR_OpenSharedMemory: New PRSharedMemory out of memory")); 
-        return(NULL);
-    }
-
-    shm->ipcname = PR_MALLOC( (PRUint32) (strlen( ipcname ) + 1) );
-    if ( NULL == shm->ipcname )
-    {
-        PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0 );
-        PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, ( "PR_OpenSharedMemory: New shm->ipcname out of memory")); 
-        PR_DELETE(shm);
-        return(NULL);
-    }
-
-    /* copy args to struct */
-    strcpy( shm->ipcname, ipcname );
-    shm->size = size; 
-    shm->mode = mode;
-    shm->flags = flags;
-    shm->ident = _PR_SHM_IDENT;
-
-    if (flags & PR_SHM_CREATE ) {
-        dwHi = (DWORD) (((PRUint64) shm->size >> 32) & 0xffffffff);
-        dwLo = (DWORD) (shm->size & 0xffffffff);
-
-        if (_PR_NT_MakeSecurityDescriptorACL(mode, filemapAccessTable,
-                &pSD, &pACL) == PR_SUCCESS) {
-            sa.nLength = sizeof(sa);
-            sa.lpSecurityDescriptor = pSD;
-            sa.bInheritHandle = FALSE;
-            lpSA = &sa;
-        }
-#ifdef WINCE
-        {
-            /*
-             * This is assuming that the name will never be larger than
-             * MAX_PATH.  Should we dynamically allocate?
-             */
-            PRUnichar wideIpcName[MAX_PATH];
-            MultiByteToWideChar(CP_ACP, 0, shm->ipcname, -1,
-                                wideIpcName, MAX_PATH);
-            shm->handle = CreateFileMappingW(
-                (HANDLE)-1 ,
-                lpSA,
-                flProtect,
-                dwHi,
-                dwLo,
-                wideIpcName);
-        }
-#else
-        shm->handle = CreateFileMappingA(
-            (HANDLE)-1 ,
-            lpSA,
-            flProtect,
-            dwHi,
-            dwLo,
-            shm->ipcname);
-#endif
-        if (lpSA != NULL) {
-            _PR_NT_FreeSecurityDescriptorACL(pSD, pACL);
-        }
-
-        if ( NULL == shm->handle ) {
-            PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, 
-                ( "PR_OpenSharedMemory: CreateFileMapping() failed: %s",
-                    shm->ipcname )); 
-            _PR_MD_MAP_DEFAULT_ERROR( GetLastError());
-            PR_FREEIF( shm->ipcname )
-            PR_DELETE( shm );
-            return(NULL);
-        } else {
-            if (( flags & PR_SHM_EXCL) && ( GetLastError() == ERROR_ALREADY_EXISTS ))  {
-                PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, 
-                    ( "PR_OpenSharedMemory: Request exclusive & already exists",
-                        shm->ipcname )); 
-                PR_SetError( PR_FILE_EXISTS_ERROR, ERROR_ALREADY_EXISTS );
-                CloseHandle( shm->handle );
-                PR_FREEIF( shm->ipcname )
-                PR_DELETE( shm );
-                return(NULL);
-            } else {
-                PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, 
-                    ( "PR_OpenSharedMemory: CreateFileMapping() success: %s, handle: %d",
-                        shm->ipcname, shm->handle ));
-                return(shm);
-            }
-        }
-    } else {
-#ifdef WINCE
-        PR_SetError( PR_NOT_IMPLEMENTED_ERROR, 0 );
-        shm->handle = NULL;  /* OpenFileMapping not supported */
-#else
-        shm->handle = OpenFileMapping( FILE_MAP_WRITE, TRUE, shm->ipcname );
-#endif
-        if ( NULL == shm->handle ) {
-            _PR_MD_MAP_DEFAULT_ERROR( GetLastError());
-            PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, 
-                ( "PR_OpenSharedMemory: OpenFileMapping() failed: %s, error: %d",
-                    shm->ipcname, PR_GetOSError())); 
-            PR_FREEIF( shm->ipcname );
-            PR_DELETE( shm );
-            return(NULL);
-        } else {
-            PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, 
-                ( "PR_OpenSharedMemory: OpenFileMapping() success: %s, handle: %d",
-                    shm->ipcname, shm->handle )); 
-                return(shm);
-        }
-    }
-    /* returns from separate paths */
-}
-
-extern void * _MD_AttachSharedMemory( PRSharedMemory *shm, PRIntn flags )
-{
-    PRUint32    access = FILE_MAP_WRITE;
-    void        *addr;
-
-    PR_ASSERT( shm->ident == _PR_SHM_IDENT );
-
-    if ( PR_SHM_READONLY & flags )
-        access = FILE_MAP_READ;
-
-    addr = MapViewOfFile( shm->handle,
-        access,
-        0, 0,
-        shm->size );
-
-    if ( NULL == addr ) {
-        _PR_MD_MAP_DEFAULT_ERROR( GetLastError());
-        PR_LOG( _pr_shm_lm, PR_LOG_ERROR, 
-            ("_MD_AttachSharedMemory: MapViewOfFile() failed. OSerror: %d", PR_GetOSError()));
-    }
-
-    return( addr );
-} /* end _MD_ATTACH_SHARED_MEMORY() */
-
-
-extern PRStatus _MD_DetachSharedMemory( PRSharedMemory *shm, void *addr )
-{
-    PRStatus rc = PR_SUCCESS;
-    BOOL        wrc;
-
-    PR_ASSERT( shm->ident == _PR_SHM_IDENT );
-
-    wrc = UnmapViewOfFile( addr );
-    if ( FALSE == wrc ) 
-    {
-        _PR_MD_MAP_DEFAULT_ERROR( GetLastError());
-        PR_LOG( _pr_shm_lm, PR_LOG_ERROR, 
-            ("_MD_DetachSharedMemory: UnmapViewOfFile() failed. OSerror: %d", PR_GetOSError()));
-        rc = PR_FAILURE;
-    }
-
-    return( rc );
-}
-
-
-extern PRStatus _MD_CloseSharedMemory( PRSharedMemory *shm )
-{
-    PRStatus rc = PR_SUCCESS;
-    BOOL wrc;
-
-    PR_ASSERT( shm->ident == _PR_SHM_IDENT );
-
-    wrc = CloseHandle( shm->handle );
-    if ( FALSE == wrc )
-    {
-        _PR_MD_MAP_DEFAULT_ERROR( GetLastError());
-        PR_LOG( _pr_shm_lm, PR_LOG_ERROR, 
-            ("_MD_CloseSharedMemory: CloseHandle() failed. OSerror: %d", PR_GetOSError()));
-        rc = PR_FAILURE;
-    }
-    PR_FREEIF( shm->ipcname );
-    PR_DELETE( shm );
-
-    return( rc );
-} /* end _MD_CLOSE_SHARED_MEMORY() */
-
-extern PRStatus _MD_DeleteSharedMemory( const char *name )
-{
-    return( PR_SUCCESS );
-}    
-
-
-/*
-** Windows implementation of anonymous memory (file) map
-*/
-extern PRLogModuleInfo *_pr_shma_lm;
-
-extern PRFileMap* _md_OpenAnonFileMap( 
-    const char *dirName,
-    PRSize      size,
-    PRFileMapProtect prot
-)
-{
-    PRFileMap   *fm;
-    HANDLE      hFileMap;
-
-    fm = PR_CreateFileMap( (PRFileDesc*)-1, size, prot );
-    if ( NULL == fm )  {
-        PR_LOG( _pr_shma_lm, PR_LOG_DEBUG,
-            ("_md_OpenAnonFileMap(): PR_CreateFileMap(): failed"));
-        goto Finished;
-    }
-
-    /*
-    ** Make fm->md.hFileMap inheritable. We can't use
-    ** GetHandleInformation and SetHandleInformation
-    ** because these two functions fail with
-    ** ERROR_CALL_NOT_IMPLEMENTED on Win95.
-    */
-    if (DuplicateHandle(GetCurrentProcess(), fm->md.hFileMap,
-            GetCurrentProcess(), &hFileMap,
-            0, TRUE /* inheritable */,
-            DUPLICATE_SAME_ACCESS) == FALSE) {
-        PR_SetError( PR_UNKNOWN_ERROR, GetLastError() );
-        PR_LOG( _pr_shma_lm, PR_LOG_DEBUG,
-            ("_md_OpenAnonFileMap(): DuplicateHandle(): failed"));
-        PR_CloseFileMap( fm );
-        fm = NULL;
-        goto Finished;
-    }
-    CloseHandle(fm->md.hFileMap);
-    fm->md.hFileMap = hFileMap;
-
-Finished:    
-    return(fm);
-} /* end md_OpenAnonFileMap() */
-
-/*
-** _md_ExportFileMapAsString()
-**
-*/
-extern PRStatus _md_ExportFileMapAsString(
-    PRFileMap *fm,
-    PRSize    bufSize,
-    char      *buf
-)
-{
-    PRIntn  written;
-
-    written = PR_snprintf( buf, (PRUint32) bufSize, "%d:%" PR_PRIdOSFD ":%ld",
-        (PRIntn)fm->prot, (PROsfd)fm->md.hFileMap, (PRInt32)fm->md.dwAccess );
-
-    PR_LOG( _pr_shma_lm, PR_LOG_DEBUG,
-        ("_md_ExportFileMapAsString(): prot: %x, hFileMap: %x, dwAccess: %x",
-            fm->prot, fm->md.hFileMap, fm->md.dwAccess ));
-        
-    return((written == -1)? PR_FAILURE : PR_SUCCESS);
-} /* end _md_ExportFileMapAsString() */
-
-
-/*
-** _md_ImportFileMapFromString()
-**
-*/
-extern PRFileMap * _md_ImportFileMapFromString(
-    const char *fmstring
-)
-{
-    PRIntn  prot;
-    PROsfd hFileMap;
-    PRInt32 dwAccess;
-    PRFileMap *fm = NULL;
-
-    PR_sscanf( fmstring, "%d:%" PR_SCNdOSFD ":%ld",
-        &prot, &hFileMap, &dwAccess );
-
-    fm = PR_NEWZAP(PRFileMap);
-    if ( NULL == fm ) {
-        PR_LOG( _pr_shma_lm, PR_LOG_DEBUG,
-            ("_md_ImportFileMapFromString(): PR_NEWZAP(): Failed"));
-        return(fm);
-    }
-
-    fm->prot = (PRFileMapProtect)prot;
-    fm->md.hFileMap = (HANDLE)hFileMap;
-    fm->md.dwAccess = (DWORD)dwAccess;
-    fm->fd = (PRFileDesc*)-1;
-
-    PR_LOG( _pr_shma_lm, PR_LOG_DEBUG,
-        ("_md_ImportFileMapFromString(): fm: %p, prot: %d, hFileMap: %8.8x, dwAccess: %8.8x, fd: %x",
-            fm, prot, fm->md.hFileMap, fm->md.dwAccess, fm->fd));
-    return(fm);
-} /* end _md_ImportFileMapFromString() */
-
-#else
-Error! Why is PR_HAVE_WIN32_NAMED_SHARED_MEMORY not defined? 
-#endif /* PR_HAVE_WIN32_NAMED_SHARED_MEMORY */
-/* --- end w32shm.c --- */