/*
 * Copyright (C) 2003, 2006, 2007 Apple Inc.  All rights reserved.
 * Copyright (C) 2007-2009 Torch Mobile, Inc.
 * Copyright (C) 2011 University of Szeged. 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 COMPUTER, 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 COMPUTER, 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.
 */

// The vprintf_stderr_common function triggers this error in the Mac build.
// Feel free to remove this pragma if this file builds on Mac.
// According to
// http://gcc.gnu.org/onlinedocs/gcc-4.2.1/gcc/Diagnostic-Pragmas.html#Diagnostic-Pragmas
// we need to place this directive before any data or functions are defined.
#pragma GCC diagnostic ignored "-Wmissing-format-attribute"

#include "third_party/blink/renderer/platform/wtf/assertions.h"

#include "build/build_config.h"

#if defined(OS_MACOSX)
#include <asl.h>
#elif defined(OS_ANDROID)
#include <android/log.h>
#elif defined(OS_WIN)
#include <windows.h>
#endif

PRINTF_FORMAT(1, 0)
void vprintf_stderr_common(const char* format, va_list args) {
#if defined(OS_MACOSX)
  va_list copyOfArgs;
  va_copy(copyOfArgs, args);
  asl_vlog(0, 0, ASL_LEVEL_NOTICE, format, copyOfArgs);
  va_end(copyOfArgs);
#elif defined(OS_ANDROID)
  __android_log_vprint(ANDROID_LOG_WARN, "WebKit", format, args);
#elif defined(OS_WIN)
  if (IsDebuggerPresent()) {
    size_t size = 1024;

    do {
      char* buffer = (char*)malloc(size);
      if (!buffer)
        break;

      if (_vsnprintf(buffer, size, format, args) != -1) {
        OutputDebugStringA(buffer);
        free(buffer);
        break;
      }

      free(buffer);
      size *= 2;
    } while (size > 1024);
  }
#endif
  vfprintf(stderr, format, args);
}