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Side by Side Diff: ppapi/c/trusted/ppb_file_io_trusted.h

Issue 7210027: Part I of many. Moving FileIO, FileRef, and FileSystem out of Dev. For now, just copying over s... (Closed) Base URL: http://src.chromium.org/svn/trunk/src/
Patch Set: '' Created 9 years, 6 months ago
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1 /* Copyright (c) 2010 The Chromium Authors. All rights reserved. 1 /* Copyright (c) 2010 The Chromium Authors. All rights reserved.
nfullagar 2011/06/21 20:15:23 2011
Sang Ahn 2011/06/21 20:41:08 Done.
2 * Use of this source code is governed by a BSD-style license that can be 2 * Use of this source code is governed by a BSD-style license that can be
3 * found in the LICENSE file. 3 * found in the LICENSE file.
4 */ 4 */
5 #ifndef PPAPI_C_DEV_PPB_FILE_IO_TRUSTED_DEV_H_ 5 #ifndef PPAPI_C_PPB_FILE_IO_TRUSTED_H_
6 #define PPAPI_C_DEV_PPB_FILE_IO_TRUSTED_DEV_H_ 6 #define PPAPI_C_PPB_FILE_IO_TRUSTED_H_
7 7
8 #include "ppapi/c/pp_resource.h" 8 #include "ppapi/c/pp_resource.h"
9 #include "ppapi/c/pp_stdint.h" 9 #include "ppapi/c/pp_stdint.h"
10 10
11 struct PP_CompletionCallback; 11 struct PP_CompletionCallback;
12 12
13 #define PPB_FILEIOTRUSTED_DEV_INTERFACE_0_2 "PPB_FileIOTrusted(Dev);0.2" 13 #define PPB_FILEIOTRUSTED_INTERFACE_1_0 "PPB_FileIOTrusted(Dev);1.0"
nfullagar 2011/06/21 20:15:23 Please see earlier comment on interface #
Sang Ahn 2011/06/21 20:41:08 Done.
14 #define PPB_FILEIOTRUSTED_DEV_INTERFACE PPB_FILEIOTRUSTED_DEV_INTERFACE_0_2 14 #define PPB_FILEIOTRUSTED_INTERFACE PPB_FILEIOTRUSTED_INTERFACE_1_0
15 15
16 // Available only to trusted implementations. 16 // Available only to trusted implementations.
17 struct PPB_FileIOTrusted_Dev { 17 struct PPB_FileIOTrusted {
18 // Returns a file descriptor corresponding to the given FileIO object. On 18 // Returns a file descriptor corresponding to the given FileIO object. On
19 // Windows, returns a HANDLE; on all other platforms, returns a POSIX file 19 // Windows, returns a HANDLE; on all other platforms, returns a POSIX file
20 // descriptor. The FileIO object must have been opened with a successful 20 // descriptor. The FileIO object must have been opened with a successful
21 // call to FileIO::Open. The file descriptor will be closed automatically 21 // call to FileIO::Open. The file descriptor will be closed automatically
22 // when the FileIO object is closed or destroyed. 22 // when the FileIO object is closed or destroyed.
23 int32_t (*GetOSFileDescriptor)(PP_Resource file_io); 23 int32_t (*GetOSFileDescriptor)(PP_Resource file_io);
24 24
25 // Notifies the browser that underlying file will be modified. This gives 25 // Notifies the browser that underlying file will be modified. This gives
26 // the browser the opportunity to apply quota restrictions and possibly 26 // the browser the opportunity to apply quota restrictions and possibly
27 // return an error to indicate that the write is not allowed. 27 // return an error to indicate that the write is not allowed.
28 int32_t (*WillWrite)(PP_Resource file_io, 28 int32_t (*WillWrite)(PP_Resource file_io,
29 int64_t offset, 29 int64_t offset,
30 int32_t bytes_to_write, 30 int32_t bytes_to_write,
31 struct PP_CompletionCallback callback); 31 struct PP_CompletionCallback callback);
32 32
33 // Notifies the browser that underlying file will be modified. This gives 33 // Notifies the browser that underlying file will be modified. This gives
34 // the browser the opportunity to apply quota restrictions and possibly 34 // the browser the opportunity to apply quota restrictions and possibly
35 // return an error to indicate that the write is not allowed. 35 // return an error to indicate that the write is not allowed.
36 int32_t (*WillSetLength)(PP_Resource file_io, 36 int32_t (*WillSetLength)(PP_Resource file_io,
37 int64_t length, 37 int64_t length,
38 struct PP_CompletionCallback callback); 38 struct PP_CompletionCallback callback);
39 39
40 // TODO(darin): Maybe unify the above into a single WillChangeFileSize 40 // TODO(darin): Maybe unify the above into a single WillChangeFileSize
41 // method? The above methods have the advantage of mapping to PPB_FileIO 41 // method? The above methods have the advantage of mapping to PPB_FileIO
42 // Write and SetLength calls. WillChangeFileSize would require the caller to 42 // Write and SetLength calls. WillChangeFileSize would require the caller to
43 // compute the file size resulting from a Write call, which may be 43 // compute the file size resulting from a Write call, which may be
44 // undesirable. 44 // undesirable.
45 }; 45 };
46 46
47 #endif /* PPAPI_C_DEV_PPB_FILE_IO_TRUSTED_DEV_H_ */ 47 #endif /* PPAPI_C_PPB_FILE_IO_TRUSTED_H_ */
48
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