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
FileOutput(String8 path)24 FileOutput::FileOutput(String8 path) : mFp(NULL), mPath(path), mOpen(false) {}
25
~FileOutput()26 FileOutput::~FileOutput() {
27 if (mOpen) {
28 ALOGW("%s: Destructor called with %s still open.", __FUNCTION__, mPath.c_str());
29 close();
30 }
31 }
32
open()33 status_t FileOutput::open() {
34 if (mOpen) {
35 ALOGW("%s: Open called when file %s already open.", __FUNCTION__, mPath.c_str());
36 return OK;
37 }
38 mFp = ::fopen(mPath, "wb");
39 if (!mFp) {
40 ALOGE("%s: Could not open file %s", __FUNCTION__, mPath.c_str());
41 return BAD_VALUE;
42 }
43 mOpen = true;
44 return OK;
45 }
46
write(const uint8_t * buf,size_t offset,size_t count)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.c_str());
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.c_str());
58 return BAD_VALUE;
59 }
60 return OK;
61 }
62
close()63 status_t FileOutput::close() {
64 if(!mOpen) {
65 ALOGW("%s: Close called when file %s already close.", __FUNCTION__, mPath.c_str());
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.c_str());
72 ret = BAD_VALUE;
73 }
74 mOpen = false;
75 return ret;
76 }
77
78 } /*namespace img_utils*/
79 } /*namespace android*/
80