// -*- mode: c++; c-basic-offset: 4 -*-

/*

 * Copyright (C) 2003, 2006, 2007 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 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. 

 */

#include "config.h"

#include "Assertions.h"

#include <stdio.h>

#include <stdarg.h>

#include <string.h>

#if PLATFORM(MAC)

#include <CoreFoundation/CFString.h>

#endif

#if PLATFORM(WIN)

#ifndef WINVER

#define WINVER 0x0500

#endif

#ifndef _WIN32_WINNT

#define _WIN32_WINNT 0x0500

#endif

#include <windows.h>

#include <crtdbg.h>

#endif

extern "C" {

// This is to work around the "you should use a printf format attribute" warning on GCC

// We can't use _attribute__ ((format (printf, 2, 3))) since we allow %@

static int (* vfprintf_no_warning)(FILE *, const char*, va_list) = vfprintf;

static void vprintf_stderr_common(const char* format, va_list args)

{

#if PLATFORM(MAC)

    if (strstr(format, "%@")) {

        CFStringRef cfFormat = CFStringCreateWithCString(NULL, format, kCFStringEncodingUTF8);

        CFStringRef str = CFStringCreateWithFormatAndArguments(NULL, NULL, cfFormat, args);

        int length = CFStringGetMaximumSizeForEncoding(CFStringGetLength(str), kCFStringEncodingUTF8);

        char* buffer = (char*)malloc(length + 1);

        CFStringGetCString(str, buffer, length, kCFStringEncodingUTF8);

        fputs(buffer, stderr);

        free(buffer);

        CFRelease(str);

        CFRelease(cfFormat);

    } else

#elif PLATFORM(WIN)

    if (IsDebuggerPresent()) {

        size_t size = 1024;

        do {

            char* buffer = (char*)malloc(size);

            if (buffer == NULL)

                break;

            if (_vsnprintf(buffer, size, format, args) != -1) {

                OutputDebugStringA(buffer);

                free(buffer);

                break;

            }

            free(buffer);

            size *= 2;

        } while (size > 1024);

    }

#endif

        vfprintf_no_warning(stderr, format, args);

}

static void printf_stderr_common(const char* format, ...)

{

    va_list args;

    va_start(args, format);

    vprintf_stderr_common(format, args);

    va_end(args);

}

static void printCallSite(const char* file, int line, const char* function)

{

#if PLATFORM(WIN) && defined _DEBUG

    _CrtDbgReport(_CRT_WARN, file, line, NULL, "%s\n", function);

#else

    printf_stderr_common("(%s:%d %s)\n", file, line, function);

#endif

}

void WTFReportAssertionFailure(const char* file, int line, const char* function, const char* assertion)

{

    if (assertion)

        printf_stderr_common("ASSERTION FAILED: %s\n", assertion);

    else

        printf_stderr_common("SHOULD NEVER BE REACHED\n");

    printCallSite(file, line, function);

}

void WTFReportAssertionFailureWithMessage(const char* file, int line, const char* function, const char* assertion, const char* format, ...)

{

    printf_stderr_common("ASSERTION FAILED: ");

    va_list args;

    va_start(args, format);

    vprintf_stderr_common(format, args);

    va_end(args);

    printf_stderr_common("\n%s\n", assertion);

    printCallSite(file, line, function);

}

void WTFReportArgumentAssertionFailure(const char* file, int line, const char* function, const char* argName, const char* assertion)

{

    printf_stderr_common("ARGUMENT BAD: %s, %s\n", argName, assertion);

    printCallSite(file, line, function);

}

void WTFReportFatalError(const char* file, int line, const char* function, const char* format, ...)

{

    printf_stderr_common("FATAL ERROR: ");

    va_list args;

    va_start(args, format);

    vprintf_stderr_common(format, args);

    va_end(args);

    printf_stderr_common("\n");

    printCallSite(file, line, function);

}

void WTFReportError(const char* file, int line, const char* function, const char* format, ...)

{

    printf_stderr_common("ERROR: ");

    va_list args;

    va_start(args, format);

    vprintf_stderr_common(format, args);

    va_end(args);

    printf_stderr_common("\n");

    printCallSite(file, line, function);

}

void WTFLog(WTFLogChannel* channel, const char* format, ...)

{

    if (channel->state != WTFLogChannelOn)

        return;

    va_list args;

    va_start(args, format);

    vprintf_stderr_common(format, args);

    va_end(args);

    if (format[strlen(format) - 1] != '\n')

        printf_stderr_common("\n");

}

void WTFLogVerbose(const char* file, int line, const char* function, WTFLogChannel* channel, const char* format, ...)

{

    if (channel->state != WTFLogChannelOn)

        return;

    va_list args;

    va_start(args, format);

    vprintf_stderr_common(format, args);

    va_end(args);

    if (format[strlen(format) - 1] != '\n')

        printf_stderr_common("\n");

    printCallSite(file, line, function);

}

} // extern "C"