1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 /* 18 * Provide a series of proxy functions for basic file accessors. 19 * The behavior of these functions can be changed to return different 20 * errors under a variety of conditions. 21 */ 22 23 #ifndef _UPDATER_OTA_IO_H_ 24 #define _UPDATER_OTA_IO_H_ 25 26 #include <stdio.h> 27 #include <sys/stat.h> 28 29 #include <memory> 30 31 #include <android-base/unique_fd.h> 32 33 #define OTAIO_CACHE_FNAME "/cache/saved.file" 34 35 void ota_set_fault_files(); 36 37 int ota_open(const char* path, int oflags); 38 39 int ota_open(const char* path, int oflags, mode_t mode); 40 41 FILE* ota_fopen(const char* filename, const char* mode); 42 43 size_t ota_fread(void* ptr, size_t size, size_t nitems, FILE* stream); 44 45 ssize_t ota_read(int fd, void* buf, size_t nbyte); 46 47 size_t ota_fwrite(const void* ptr, size_t size, size_t count, FILE* stream); 48 49 ssize_t ota_write(int fd, const void* buf, size_t nbyte); 50 51 int ota_fsync(int fd); 52 53 struct OtaCloser { 54 static void Close(int); 55 }; 56 57 using unique_fd = android::base::unique_fd_impl<OtaCloser>; 58 59 int ota_close(unique_fd& fd); 60 61 struct OtaFcloser { 62 void operator()(FILE*) const; 63 }; 64 65 using unique_file = std::unique_ptr<FILE, OtaFcloser>; 66 67 int ota_fclose(unique_file& fh); 68 69 #endif 70
