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comparison: ipc/chromium/src/base/platform_file_posix.cc
ipc/chromium/src/base/platform_file_posix.cc
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:ed1e649cacbc |
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| 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "base/platform_file.h" | |
| 6 | |
| 7 #include <sys/stat.h> | |
| 8 #include <fcntl.h> | |
| 9 #include <errno.h> | |
| 10 #ifdef ANDROID | |
| 11 #include <linux/stat.h> | |
| 12 #endif | |
| 13 | |
| 14 #include "base/logging.h" | |
| 15 #include "base/string_util.h" | |
| 16 | |
| 17 namespace base { | |
| 18 | |
| 19 // TODO(erikkay): does it make sense to support PLATFORM_FILE_EXCLUSIVE_* here? | |
| 20 PlatformFile CreatePlatformFile(const std::wstring& name, | |
| 21 int flags, | |
| 22 bool* created) { | |
| 23 int open_flags = 0; | |
| 24 if (flags & PLATFORM_FILE_CREATE) | |
| 25 open_flags = O_CREAT | O_EXCL; | |
| 26 | |
| 27 if (flags & PLATFORM_FILE_CREATE_ALWAYS) { | |
| 28 DCHECK(!open_flags); | |
| 29 open_flags = O_CREAT | O_TRUNC; | |
| 30 } | |
| 31 | |
| 32 if (!open_flags && !(flags & PLATFORM_FILE_OPEN) && | |
| 33 !(flags & PLATFORM_FILE_OPEN_ALWAYS)) { | |
| 34 NOTREACHED(); | |
| 35 errno = ENOTSUP; | |
| 36 return kInvalidPlatformFileValue; | |
| 37 } | |
| 38 | |
| 39 if (flags & PLATFORM_FILE_WRITE && flags & PLATFORM_FILE_READ) { | |
| 40 open_flags |= O_RDWR; | |
| 41 } else if (flags & PLATFORM_FILE_WRITE) { | |
| 42 open_flags |= O_WRONLY; | |
| 43 } else if (!(flags & PLATFORM_FILE_READ)) { | |
| 44 NOTREACHED(); | |
| 45 } | |
| 46 | |
| 47 DCHECK(O_RDONLY == 0); | |
| 48 | |
| 49 int descriptor = open(WideToUTF8(name).c_str(), open_flags, | |
| 50 S_IRUSR | S_IWUSR); | |
| 51 | |
| 52 if (flags & PLATFORM_FILE_OPEN_ALWAYS) { | |
| 53 if (descriptor > 0) { | |
| 54 if (created) | |
| 55 *created = false; | |
| 56 } else { | |
| 57 open_flags |= O_CREAT; | |
| 58 descriptor = open(WideToUTF8(name).c_str(), open_flags, | |
| 59 S_IRUSR | S_IWUSR); | |
| 60 if (created && descriptor > 0) | |
| 61 *created = true; | |
| 62 } | |
| 63 } | |
| 64 | |
| 65 return descriptor; | |
| 66 } | |
| 67 | |
| 68 } // namespace base |
