1 /* 2 * file_handle.h - File handle 3 * 4 * Copyright (c) 2016-2017 Intel Corporation 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 * 18 * Author: Yinhang Liu <yinhangx.liu@intel.com> 19 * Author: Wind Yuan <feng.yuan@intel.com> 20 */ 21 22 #ifndef XCAM_FILE_HANDLE_H 23 #define XCAM_FILE_HANDLE_H 24 25 #include <xcam_std.h> 26 27 namespace XCam { 28 29 class FileHandle { 30 public: 31 FileHandle (); 32 explicit FileHandle (const char *name, const char *option); 33 virtual ~FileHandle (); 34 is_valid()35 bool is_valid () const { 36 return (_fp ? true : false); 37 } 38 bool end_of_file (); 39 XCamReturn open (const char *name, const char *option); 40 XCamReturn close (); 41 XCamReturn rewind (); 42 XCamReturn get_file_size (size_t &size); get_file_name()43 const char* get_file_name () const { 44 return _file_name; 45 } 46 XCamReturn read_file (void *buf, const size_t &size); 47 XCamReturn write_file (const void *buf, const size_t &size); 48 49 private: 50 XCAM_DEAD_COPY (FileHandle); 51 52 protected: 53 FILE *_fp; 54 55 private: 56 char *_file_name; 57 size_t _file_size; 58 }; 59 60 } 61 62 #endif //XCAM_FILE_HANDLE_H