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| 1 /* Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 /* Copyright (c) 2012 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 | 5 |
| 6 /* From ppb_file_io.idl modified Thu Jan 12 16:13:13 2012. */ | 6 /* From ppb_file_io.idl modified Fri Jan 20 13:16:36 2012. */ |
| 7 | 7 |
| 8 #ifndef PPAPI_C_PPB_FILE_IO_H_ | 8 #ifndef PPAPI_C_PPB_FILE_IO_H_ |
| 9 #define PPAPI_C_PPB_FILE_IO_H_ | 9 #define PPAPI_C_PPB_FILE_IO_H_ |
| 10 | 10 |
| 11 #include "ppapi/c/pp_bool.h" | 11 #include "ppapi/c/pp_bool.h" |
| 12 #include "ppapi/c/pp_completion_callback.h" | 12 #include "ppapi/c/pp_completion_callback.h" |
| 13 #include "ppapi/c/pp_file_info.h" | 13 #include "ppapi/c/pp_file_info.h" |
| 14 #include "ppapi/c/pp_instance.h" | 14 #include "ppapi/c/pp_instance.h" |
| 15 #include "ppapi/c/pp_macros.h" | 15 #include "ppapi/c/pp_macros.h" |
| 16 #include "ppapi/c/pp_resource.h" | 16 #include "ppapi/c/pp_resource.h" |
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| 163 * | 163 * |
| 164 * @param[in] file_io A <code>PP_Resource</code> corresponding to a file | 164 * @param[in] file_io A <code>PP_Resource</code> corresponding to a file |
| 165 * FileIO. | 165 * FileIO. |
| 166 * @param[in] offset The offset into the file. | 166 * @param[in] offset The offset into the file. |
| 167 * @param[in] buffer The buffer to hold the specified number of bytes read. | 167 * @param[in] buffer The buffer to hold the specified number of bytes read. |
| 168 * @param[in] bytes_to_read The number of bytes to read from | 168 * @param[in] bytes_to_read The number of bytes to read from |
| 169 * <code>offset</code>. | 169 * <code>offset</code>. |
| 170 * @param[in] callback A <code>PP_CompletionCallback</code> to be called upon | 170 * @param[in] callback A <code>PP_CompletionCallback</code> to be called upon |
| 171 * completion of Read(). | 171 * completion of Read(). |
| 172 * | 172 * |
| 173 * @return An The number of bytes read an error code from | 173 * @return An number of bytes read an error code from |
| 174 * <code>pp_errors.h</code>. If the return value is 0, then end-of-file was | 174 * <code>pp_errors.h</code>. If the return value is 0, then end-of-file was |
| 175 * reached. It is valid to call Read() multiple times with a completion | 175 * reached. It is valid to call Read() multiple times with a completion |
| 176 * callback to queue up parallel reads from the file, but pending reads | 176 * callback to queue up parallel reads from the file, but pending reads |
| 177 * cannot be interleaved with other operations. | 177 * cannot be interleaved with other operations. |
| 178 */ | 178 */ |
| 179 int32_t (*Read)(PP_Resource file_io, | 179 int32_t (*Read)(PP_Resource file_io, |
| 180 int64_t offset, | 180 int64_t offset, |
| 181 char* buffer, | 181 char* buffer, |
| 182 int32_t bytes_to_read, | 182 int32_t bytes_to_read, |
| 183 struct PP_CompletionCallback callback); | 183 struct PP_CompletionCallback callback); |
| 184 /** | 184 /** |
| 185 * Write() writes to an offset in the file. This function might perform a | 185 * Write() writes to an offset in the file. This function might perform a |
| 186 * partial write. The FileIO object must have been opened with write access. | 186 * partial write. The FileIO object must have been opened with write access. |
| 187 * | 187 * |
| 188 * @param[in] file_io A <code>PP_Resource</code> corresponding to a file | 188 * @param[in] file_io A <code>PP_Resource</code> corresponding to a file |
| 189 * FileIO. | 189 * FileIO. |
| 190 * @param[in] offset The offset into the file. | 190 * @param[in] offset The offset into the file. |
| 191 * @param[in] buffer The buffer to hold the specified number of bytes read. | 191 * @param[in] buffer The buffer to hold the specified number of bytes read. |
| 192 * @param[in] bytes_to_write The number of bytes to write to | 192 * @param[in] bytes_to_write The number of bytes to write to |
| 193 * <code>offset</code>. | 193 * <code>offset</code>. |
| 194 * @param[in] callback A <code>PP_CompletionCallback</code> to be called upon | 194 * @param[in] callback A <code>PP_CompletionCallback</code> to be called upon |
| 195 * completion of Write(). | 195 * completion of Write(). |
| 196 * | 196 * |
| 197 * @return An The number of bytes written or an error code from | 197 * @return The number of bytes written or an error code from |
| 198 * <code>pp_errors.h</code>. If the return value is 0, then end-of-file was | 198 * <code>pp_errors.h</code>. If the return value is 0, then end-of-file was |
| 199 * reached. It is valid to call Write() multiple times with a completion | 199 * reached. It is valid to call Write() multiple times with a completion |
| 200 * callback to queue up parallel writes to the file, but pending writes | 200 * callback to queue up parallel writes to the file, but pending writes |
| 201 * cannot be interleaved with other operations. | 201 * cannot be interleaved with other operations. |
| 202 */ | 202 */ |
| 203 int32_t (*Write)(PP_Resource file_io, | 203 int32_t (*Write)(PP_Resource file_io, |
| 204 int64_t offset, | 204 int64_t offset, |
| 205 const char* buffer, | 205 const char* buffer, |
| 206 int32_t bytes_to_write, | 206 int32_t bytes_to_write, |
| 207 struct PP_CompletionCallback callback); | 207 struct PP_CompletionCallback callback); |
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| 254 void (*Close)(PP_Resource file_io); | 254 void (*Close)(PP_Resource file_io); |
| 255 }; | 255 }; |
| 256 | 256 |
| 257 typedef struct PPB_FileIO_1_0 PPB_FileIO; | 257 typedef struct PPB_FileIO_1_0 PPB_FileIO; |
| 258 /** | 258 /** |
| 259 * @} | 259 * @} |
| 260 */ | 260 */ |
| 261 | 261 |
| 262 #endif /* PPAPI_C_PPB_FILE_IO_H_ */ | 262 #endif /* PPAPI_C_PPB_FILE_IO_H_ */ |
| 263 | 263 |
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