1 /* 2 * Copyright 2014 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 #include <img_utils/FileOutput.h> 18 19 #include <utils/Log.h> 20 21 namespace android { 22 namespace img_utils { 23 24 FileOutput::FileOutput(String8 path) : mFp(NULL), mPath(path), mOpen(false) {} 25 26 FileOutput::~FileOutput() { 27 if (mOpen) { 28 ALOGW("%s: Destructor called with %s still open.", __FUNCTION__, mPath.string()); 29 close(); 30 } 31 } 32 33 status_t FileOutput::open() { 34 if (mOpen) { 35 ALOGW("%s: Open called when file %s already open.", __FUNCTION__, mPath.string()); 36 return OK; 37 } 38 mFp = ::fopen(mPath, "wb"); 39 if (!mFp) { 40 ALOGE("%s: Could not open file %s", __FUNCTION__, mPath.string()); 41 return BAD_VALUE; 42 } 43 mOpen = true; 44 return OK; 45 } 46 47 status_t FileOutput::write(const uint8_t* buf, size_t offset, size_t count) { 48 if (!mOpen) { 49 ALOGE("%s: Could not write file %s, file not open.", __FUNCTION__, mPath.string()); 50 return BAD_VALUE; 51 } 52 53 ::fwrite(buf + offset, sizeof(uint8_t), count, mFp); 54 55 int error = ::ferror(mFp); 56 if (error != 0) { 57 ALOGE("%s: Error %d occurred while writing file %s.", __FUNCTION__, error, mPath.string()); 58 return BAD_VALUE; 59 } 60 return OK; 61 } 62 63 status_t FileOutput::close() { 64 if(!mOpen) { 65 ALOGW("%s: Close called when file %s already close.", __FUNCTION__, mPath.string()); 66 return OK; 67 } 68 69 status_t ret = OK; 70 if(::fclose(mFp) != 0) { 71 ALOGE("%s: Failed to close file %s.", __FUNCTION__, mPath.string()); 72 ret = BAD_VALUE; 73 } 74 mOpen = false; 75 return ret; 76 } 77 78 } /*namespace img_utils*/ 79 } /*namespace android*/ 80
