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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
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 WEBKIT_PLUGINS_PPAPI_PPB_FILE_IO_IMPL_H_ | 5 #ifndef WEBKIT_PLUGINS_PPAPI_PPB_FILE_IO_IMPL_H_ |
6 #define WEBKIT_PLUGINS_PPAPI_PPB_FILE_IO_IMPL_H_ | 6 #define WEBKIT_PLUGINS_PPAPI_PPB_FILE_IO_IMPL_H_ |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "base/file_path.h" | 9 #include "base/file_path.h" |
10 #include "base/memory/ref_counted.h" | 10 #include "base/memory/ref_counted.h" |
11 #include "base/memory/scoped_callback_factory.h" | 11 #include "base/memory/scoped_callback_factory.h" |
12 #include "base/memory/scoped_ptr.h" | 12 #include "base/memory/scoped_ptr.h" |
13 #include "base/platform_file.h" | 13 #include "base/platform_file.h" |
14 #include "ppapi/c/dev/pp_file_info_dev.h" | 14 #include "ppapi/c/dev/pp_file_info_dev.h" |
15 #include "ppapi/c/pp_time.h" | 15 #include "ppapi/c/pp_time.h" |
16 #include "ppapi/thunk/ppb_file_io_api.h" | |
17 #include "webkit/plugins/ppapi/callbacks.h" | 16 #include "webkit/plugins/ppapi/callbacks.h" |
18 #include "webkit/plugins/ppapi/plugin_delegate.h" | 17 #include "webkit/plugins/ppapi/plugin_delegate.h" |
19 #include "webkit/plugins/ppapi/resource.h" | 18 #include "webkit/plugins/ppapi/resource.h" |
20 | 19 |
21 struct PP_CompletionCallback; | 20 struct PP_CompletionCallback; |
22 struct PPB_FileIO_Dev; | 21 struct PPB_FileIO_Dev; |
23 struct PPB_FileIOTrusted_Dev; | 22 struct PPB_FileIOTrusted_Dev; |
24 | 23 |
25 namespace webkit { | 24 namespace webkit { |
26 namespace ppapi { | 25 namespace ppapi { |
27 | 26 |
28 class PluginModule; | 27 class PluginModule; |
29 class PPB_FileRef_Impl; | 28 class PPB_FileRef_Impl; |
30 | 29 |
31 class PPB_FileIO_Impl : public Resource, | 30 class PPB_FileIO_Impl : public Resource { |
32 public ::ppapi::thunk::PPB_FileIO_API { | |
33 public: | 31 public: |
34 explicit PPB_FileIO_Impl(PluginInstance* instance); | 32 explicit PPB_FileIO_Impl(PluginInstance* instance); |
35 virtual ~PPB_FileIO_Impl(); | 33 virtual ~PPB_FileIO_Impl(); |
36 | 34 |
37 static PP_Resource Create(PP_Instance instance); | 35 // Returns a pointer to the interface implementing PPB_FileIO that is exposed |
| 36 // to the plugin. |
| 37 static const PPB_FileIO_Dev* GetInterface(); |
38 | 38 |
39 // ResourceObjectBase overrides. | 39 // Returns a pointer to the interface implementing PPB_FileIOTrusted that is |
40 ::ppapi::thunk::PPB_FileIO_API* AsPPB_FileIO_API(); | 40 // exposed to the plugin. |
| 41 static const PPB_FileIOTrusted_Dev* GetTrustedInterface(); |
41 | 42 |
42 // PPB_FileIO_API implementation. | 43 // Resource overrides. |
43 virtual int32_t Open(PP_Resource file_ref, | 44 virtual PPB_FileIO_Impl* AsPPB_FileIO_Impl(); |
44 int32_t open_flags, | 45 |
45 PP_CompletionCallback callback) OVERRIDE; | 46 // PPB_FileIO implementation. |
46 virtual int32_t Query(PP_FileInfo_Dev* info, | 47 int32_t Open(PPB_FileRef_Impl* file_ref, |
47 PP_CompletionCallback callback) OVERRIDE; | 48 int32_t open_flags, |
48 virtual int32_t Touch(PP_Time last_access_time, | 49 PP_CompletionCallback callback); |
49 PP_Time last_modified_time, | 50 int32_t Query(PP_FileInfo_Dev* info, |
50 PP_CompletionCallback callback) OVERRIDE; | 51 PP_CompletionCallback callback); |
51 virtual int32_t Read(int64_t offset, | 52 int32_t Touch(PP_Time last_access_time, |
52 char* buffer, | 53 PP_Time last_modified_time, |
53 int32_t bytes_to_read, | 54 PP_CompletionCallback callback); |
54 PP_CompletionCallback callback) OVERRIDE; | 55 int32_t Read(int64_t offset, |
55 virtual int32_t Write(int64_t offset, | 56 char* buffer, |
56 const char* buffer, | 57 int32_t bytes_to_read, |
57 int32_t bytes_to_write, | 58 PP_CompletionCallback callback); |
58 PP_CompletionCallback callback) OVERRIDE; | 59 int32_t Write(int64_t offset, |
59 virtual int32_t SetLength(int64_t length, | 60 const char* buffer, |
60 PP_CompletionCallback callback) OVERRIDE; | 61 int32_t bytes_to_write, |
61 virtual int32_t Flush(PP_CompletionCallback callback) OVERRIDE; | 62 PP_CompletionCallback callback); |
62 virtual void Close() OVERRIDE; | 63 int32_t SetLength(int64_t length, |
63 virtual int32_t GetOSFileDescriptor() OVERRIDE; | 64 PP_CompletionCallback callback); |
64 virtual int32_t WillWrite(int64_t offset, | 65 int32_t Flush(PP_CompletionCallback callback); |
65 int32_t bytes_to_write, | 66 void Close(); |
66 PP_CompletionCallback callback) OVERRIDE; | 67 |
67 virtual int32_t WillSetLength(int64_t length, | 68 // PPB_FileIOTrusted implementation. |
68 PP_CompletionCallback callback) OVERRIDE; | 69 int32_t GetOSFileDescriptor(); |
| 70 int32_t WillWrite(int64_t offset, |
| 71 int32_t bytes_to_write, |
| 72 PP_CompletionCallback callback); |
| 73 int32_t WillSetLength(int64_t length, |
| 74 PP_CompletionCallback callback); |
69 | 75 |
70 private: | 76 private: |
71 // Verifies: | 77 // Verifies: |
72 // - that |callback| is valid (only nonblocking operation supported); | 78 // - that |callback| is valid (only nonblocking operation supported); |
73 // - that the file is already open or not, depending on |should_be_open|; and | 79 // - that the file is already open or not, depending on |should_be_open|; and |
74 // - that no callback is already pending. | 80 // - that no callback is already pending. |
75 // Returns |PP_OK| to indicate that everything is valid or |PP_ERROR_...| if | 81 // Returns |PP_OK| to indicate that everything is valid or |PP_ERROR_...| if |
76 // the call should be aborted and that code returned to the plugin. | 82 // the call should be aborted and that code returned to the plugin. |
77 int32_t CommonCallValidation(bool should_be_open, | 83 int32_t CommonCallValidation(bool should_be_open, |
78 PP_CompletionCallback callback); | 84 PP_CompletionCallback callback); |
(...skipping 28 matching lines...) Expand all Loading... |
107 // Pointer back to the caller's read buffer; used by |Read()|. Not owned. | 113 // Pointer back to the caller's read buffer; used by |Read()|. Not owned. |
108 char* read_buffer_; | 114 char* read_buffer_; |
109 | 115 |
110 DISALLOW_COPY_AND_ASSIGN(PPB_FileIO_Impl); | 116 DISALLOW_COPY_AND_ASSIGN(PPB_FileIO_Impl); |
111 }; | 117 }; |
112 | 118 |
113 } // namespace ppapi | 119 } // namespace ppapi |
114 } // namespace webkit | 120 } // namespace webkit |
115 | 121 |
116 #endif // WEBKIT_PLUGINS_PPAPI_PPB_FILE_IO_IMPL_H_ | 122 #endif // WEBKIT_PLUGINS_PPAPI_PPB_FILE_IO_IMPL_H_ |
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