third_party/WebKit/Source/platform/wtf/FilePrintStream.cpp

/*
 * Copyright (C) 2012 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "platform/wtf/FilePrintStream.h"

#include "platform/wtf/PtrUtil.h"
#include <memory>

namespace WTF {

FilePrintStream::FilePrintStream(FILE* file, AdoptionMode adoption_mode)
    : file_(file), adoption_mode_(adoption_mode) {}

FilePrintStream::~FilePrintStream() {
  if (adoption_mode_ == kBorrow)
    return;
  fclose(file_);
}

std::unique_ptr<FilePrintStream> FilePrintStream::Open(const char* filename,
                                                       const char* mode) {
  FILE* file = fopen(filename, mode);
  if (!file)
    return std::unique_ptr<FilePrintStream>();

  return WTF::MakeUnique<FilePrintStream>(file);
}

void FilePrintStream::Vprintf(const char* format, va_list arg_list) {
  vfprintf(file_, format, arg_list);
}

void FilePrintStream::Flush() {
  fflush(file_);
}

}  // namespace WTF