OLD | NEW |
---|---|
(Empty) | |
1 // Copyright (c) 2016 The Chromium Authors. All rights reserved. | |
Alexei Svitkine (slow)
2016/12/09 18:04:15
Nit: No (c)
| |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef BASE_MEMORY_SHARED_MEMORY_HELPER_H_ | |
6 #define BASE_MEMORY_SHARED_MEMORY_HELPER_H_ | |
7 | |
8 #include "base/memory/shared_memory.h" | |
9 | |
10 #include <fcntl.h> | |
11 | |
12 namespace base { | |
13 | |
14 struct ScopedPathUnlinkerTraits { | |
15 static FilePath* InvalidValue() { return nullptr; } | |
16 | |
17 static void Free(FilePath* path) { | |
18 if (unlink(path->value().c_str())) | |
19 PLOG(WARNING) << "unlink"; | |
20 } | |
21 }; | |
22 | |
23 // Unlinks the FilePath when the object is destroyed. | |
24 using ScopedPathUnlinker = ScopedGeneric<FilePath*, ScopedPathUnlinkerTraits>; | |
25 | |
26 #if !defined(OS_ANDROID) | |
27 // Makes a temporary file, fdopens it, and then unlinks it. |fp| is populated | |
28 // with the fdopened FILE. |readonly_fd| is populated with the opened fd if | |
29 // options.share_read_only is true. |path| is populated with the location of | |
30 // the file before it was unlinked. | |
31 // Returns false if there's an unhandled failure. | |
32 bool CreateAnonymousSharedMemory(const SharedMemoryCreateOptions& options, | |
33 ScopedFILE* fp, | |
34 ScopedFD* readonly_fd, | |
35 FilePath* path); | |
36 | |
37 bool PrepareMapFile(ScopedFILE fp, ScopedFD readonly_fd, int* mapped_file, | |
Alexei Svitkine (slow)
2016/12/09 18:04:16
Add a comment.
lawrencewu
2016/12/09 18:33:57
Done.
| |
38 int* readonly_mapped_file); | |
39 #endif | |
40 | |
41 } // namespace base | |
42 | |
43 #endif // BASE_MEMORY_SHARED_MEMORY_HELPER_H_ | |
OLD | NEW |