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/* Copyright (C) 2024 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. AND ITS CONTRIBUTORS ``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 ITS 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.
*/
#pragma once
#if ENABLE(LOGD_BLOCKING_IN_WEBCONTENT)
#include "LogStreamIdentifier.h"
#include <wtf/ProcessID.h>
#include <wtf/Ref.h>
#include <wtf/RefPtr.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/WeakPtr.h>
#if ENABLE(STREAMING_IPC_IN_LOG_FORWARDING)
#include "StreamMessageReceiver.h"
#include "StreamServerConnection.h"
#else
#include "MessageReceiver.h"
#include <wtf/RefCounted.h>
#endif
namespace WebKit {
constexpr size_t logCategoryMaxSize = 32;
constexpr size_t logSubsystemMaxSize = 32;
constexpr size_t logStringMaxSize = 256;
class WebProcessProxy;
// Type which receives log messages from another process and invokes the platform logging.
// The messages are found from generated LogStream.messages.in in build directory,
// DerivedSources/WebKit/LogStream.messages.in.
class LogStream final :
#if ENABLE(STREAMING_IPC_IN_LOG_FORWARDING)
public IPC::StreamServerConnection::Client
#else
public RefCounted<LogStream>, public IPC::MessageReceiver
#endif
{
WTF_MAKE_TZONE_ALLOCATED(LogStream);
#if ENABLE(STREAMING_IPC_IN_LOG_FORWARDING)
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(LogStream);
#endif
public:
#if ENABLE(STREAMING_IPC_IN_LOG_FORWARDING)
static RefPtr<LogStream> create(WebProcessProxy&, IPC::StreamServerConnectionHandle&&, LogStreamIdentifier, CompletionHandler<void(IPC::Semaphore& streamWakeUpSemaphore, IPC::Semaphore& streamClientWaitSemaphore)>&&);
#else
static Ref<LogStream> create(WebProcessProxy&, Ref<IPC::Connection>&&, LogStreamIdentifier);
#endif
~LogStream();
void stopListeningForIPC();
#if !ENABLE(STREAMING_IPC_IN_LOG_FORWARDING)
void ref() const final { RefCounted::ref(); }
void deref() const final { RefCounted::deref(); }
#endif
LogStreamIdentifier identifier() const { return m_identifier; }
static unsigned logCountForTesting();
private:
#if ENABLE(STREAMING_IPC_IN_LOG_FORWARDING)
using ConnectionType = IPC::StreamServerConnection;
#else
using ConnectionType = IPC::Connection;
#endif
LogStream(WebProcessProxy&, Ref<ConnectionType>&&, LogStreamIdentifier);
#if ENABLE(STREAMING_IPC_IN_LOG_FORWARDING)
// IPC::StreamServerConnection::Client overrides.
void didReceiveInvalidMessage(IPC::StreamServerConnection&, IPC::MessageName, const Vector<uint32_t>&) final;
void didReceiveStreamMessage(IPC::StreamServerConnection&, IPC::Decoder&) final;
#else
// IPC::MessageReceiver overrides.
void didReceiveMessage(IPC::Connection&, IPC::Decoder&) final;
#endif
void logOnBehalfOfWebContent(std::span<const uint8_t> logChannel, std::span<const uint8_t> logCategory, std::span<const uint8_t> logString, uint8_t logType);
#if __has_include("LogMessagesDeclarations.h")
#include "LogMessagesDeclarations.h"
#endif
#if ENABLE(STREAMING_IPC_IN_LOG_FORWARDING)
const Ref<IPC::StreamServerConnection> m_connection;
WeakPtr<WebProcessProxy> m_process;
#else
ThreadSafeWeakPtr<IPC::Connection> m_connection;
#endif
const LogStreamIdentifier m_identifier;
const ProcessID m_pid;
};
} // namespace WebKit
#endif // ENABLE(LOGD_BLOCKING_IN_WEBCONTENT)
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