blob: 5d7e48925853e17bb98463f3ff81bb05fb29f073 [file] [log] [blame]
// Copyright 2019 The Cobalt Authors. All Rights Reserved.
//
// 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.
#include "starboard/shared/starboard/file_atomic_replace_write_file.h"
#include <algorithm>
#include "starboard/common/file.h"
#include "starboard/common/log.h"
#include "starboard/file.h"
namespace starboard {
namespace shared {
namespace starboard {
bool SbFileAtomicReplaceWriteFile(const char* path,
const char* data,
int64_t data_size) {
SbFileError error;
SbFile temp_file = SbFileOpen(
path, kSbFileCreateAlways | kSbFileWrite | kSbFileRead, NULL, &error);
if (error != kSbFileOk) {
return false;
}
SbFileTruncate(temp_file, 0);
const char* source = data;
int64_t to_write = data_size;
while (to_write > 0) {
const int to_write_max =
static_cast<int>(std::min(to_write, static_cast<int64_t>(kSbInt32Max)));
const int bytes_written = SbFileWrite(temp_file, source, to_write_max);
RecordFileWriteStat(bytes_written);
if (bytes_written < 0) {
SbFileClose(temp_file);
SbFileDelete(path);
return false;
}
source += bytes_written;
to_write -= bytes_written;
}
SbFileFlush(temp_file);
if (!SbFileClose(temp_file)) {
return false;
}
return true;
}
} // namespace starboard
} // namespace shared
} // namespace starboard