| /* |
| * Copyright 2010, The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef BCC_FILEHANDLE_H |
| #define BCC_FILEHANDLE_H |
| |
| #include <sys/types.h> |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| namespace bcc { |
| namespace OpenMode { |
| enum ModeType { |
| READ, |
| WRITE |
| }; |
| } |
| |
| class FileHandle { |
| private: |
| int mFD; |
| |
| public: |
| FileHandle() : mFD(-1) { |
| } |
| |
| ~FileHandle() { |
| if (mFD >= 0) { |
| close(); |
| } |
| } |
| |
| int open(char const *filename, OpenMode::ModeType mode); |
| |
| void close(); |
| |
| int getFD() { |
| // Note: This function is designed not being qualified by const. |
| // Because once the file descriptor is given, the user can do every |
| // thing on file descriptor. |
| |
| return mFD; |
| } |
| |
| off_t seek(off_t offset, int whence); |
| |
| ssize_t read(char *buf, size_t count); |
| |
| ssize_t write(char const *buf, size_t count); |
| |
| void truncate(); |
| |
| }; |
| |
| } // namespace bcc |
| |
| #endif // BCC_FILEHANDLE_H |