1/*
2 * Copyright (C) 2003, 2006, 2013 Apple Inc.  All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "Logging.h"
28
29#include <wtf/StdLibExtras.h>
30#include <wtf/text/CString.h>
31#include <wtf/text/WTFString.h>
32
33#if !LOG_DISABLED
34
35namespace WebCore {
36
37#define DEFINE_LOG_CHANNEL(name) \
38    WTFLogChannel JOIN_LOG_CHANNEL_WITH_PREFIX(LOG_CHANNEL_PREFIX, name) = { WTFLogChannelOff, #name };
39WEBCORE_LOG_CHANNELS(DEFINE_LOG_CHANNEL)
40
41#define LOG_CHANNEL_ADDRESS(name)  &JOIN_LOG_CHANNEL_WITH_PREFIX(LOG_CHANNEL_PREFIX, name),
42WTFLogChannel* logChannels[] = {
43    WEBCORE_LOG_CHANNELS(LOG_CHANNEL_ADDRESS)
44};
45
46size_t logChannelCount = WTF_ARRAY_LENGTH(logChannels);
47
48bool isLogChannelEnabled(const String& name)
49{
50    WTFLogChannel* channel = WTFLogChannelByName(logChannels, logChannelCount, name.utf8().data());
51    if (!channel)
52        return false;
53    return channel->state != WTFLogChannelOff;
54}
55
56void initializeLoggingChannelsIfNecessary()
57{
58    static bool haveInitializedLoggingChannels = false;
59    if (haveInitializedLoggingChannels)
60        return;
61    haveInitializedLoggingChannels = true;
62
63    WTFInitializeLogChannelStatesFromString(logChannels, logChannelCount, logLevelString().utf8().data());
64}
65
66}
67
68#endif // !LOG_DISABLED
69