nsprpub/pr/src/io/prmmap.c@6474c204b198 (annotated)
nsprpub/pr/src/io/prmmap.c
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | /* |
| michael@0 | 7 | ********************************************************************* |
| michael@0 | 8 | * |
| michael@0 | 9 | * Memory-mapped files |
| michael@0 | 10 | * |
| michael@0 | 11 | ********************************************************************* |
| michael@0 | 12 | */ |
| michael@0 | 13 | |
| michael@0 | 14 | #include "primpl.h" |
| michael@0 | 15 | |
| michael@0 | 16 | PR_IMPLEMENT(PRFileMap *) PR_CreateFileMap( |
| michael@0 | 17 | PRFileDesc *fd, |
| michael@0 | 18 | PRInt64 size, |
| michael@0 | 19 | PRFileMapProtect prot) |
| michael@0 | 20 | { |
| michael@0 | 21 | PRFileMap *fmap; |
| michael@0 | 22 | |
| michael@0 | 23 | PR_ASSERT(prot == PR_PROT_READONLY || prot == PR_PROT_READWRITE |
| michael@0 | 24 | || prot == PR_PROT_WRITECOPY); |
| michael@0 | 25 | fmap = PR_NEWZAP(PRFileMap); |
| michael@0 | 26 | if (NULL == fmap) { |
| michael@0 | 27 | PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); |
| michael@0 | 28 | return NULL; |
| michael@0 | 29 | } |
| michael@0 | 30 | fmap->fd = fd; |
| michael@0 | 31 | fmap->prot = prot; |
| michael@0 | 32 | if (_PR_MD_CREATE_FILE_MAP(fmap, size) == PR_SUCCESS) { |
| michael@0 | 33 | return fmap; |
| michael@0 | 34 | } else { |
| michael@0 | 35 | PR_DELETE(fmap); |
| michael@0 | 36 | return NULL; |
| michael@0 | 37 | } |
| michael@0 | 38 | } |
| michael@0 | 39 | |
| michael@0 | 40 | PR_IMPLEMENT(PRInt32) PR_GetMemMapAlignment(void) |
| michael@0 | 41 | { |
| michael@0 | 42 | return _PR_MD_GET_MEM_MAP_ALIGNMENT(); |
| michael@0 | 43 | } |
| michael@0 | 44 | |
| michael@0 | 45 | PR_IMPLEMENT(void *) PR_MemMap( |
| michael@0 | 46 | PRFileMap *fmap, |
| michael@0 | 47 | PROffset64 offset, |
| michael@0 | 48 | PRUint32 len) |
| michael@0 | 49 | { |
| michael@0 | 50 | return _PR_MD_MEM_MAP(fmap, offset, len); |
| michael@0 | 51 | } |
| michael@0 | 52 | |
| michael@0 | 53 | PR_IMPLEMENT(PRStatus) PR_MemUnmap(void *addr, PRUint32 len) |
| michael@0 | 54 | { |
| michael@0 | 55 | return _PR_MD_MEM_UNMAP(addr, len); |
| michael@0 | 56 | } |
| michael@0 | 57 | |
| michael@0 | 58 | PR_IMPLEMENT(PRStatus) PR_CloseFileMap(PRFileMap *fmap) |
| michael@0 | 59 | { |
| michael@0 | 60 | return _PR_MD_CLOSE_FILE_MAP(fmap); |
| michael@0 | 61 | } |
| michael@0 | 62 | |
| michael@0 | 63 | PR_IMPLEMENT(PRStatus) PR_SyncMemMap( |
| michael@0 | 64 | PRFileDesc *fd, |
| michael@0 | 65 | void *addr, |
| michael@0 | 66 | PRUint32 len) |
| michael@0 | 67 | { |
| michael@0 | 68 | return _PR_MD_SYNC_MEM_MAP(fd, addr, len); |
| michael@0 | 69 | } |
