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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 "StreamConnectionWorkQueue.h"
#include "StreamMessageReceiver.h"
#include <wtf/RefPtr.h>
namespace IPC {
class StreamServerConnection;
struct StreamServerConnectionHandle;
}
namespace WebKit {
constexpr size_t logCategoryMaxSize = 32;
constexpr size_t logSubsystemMaxSize = 32;
constexpr size_t logStringMaxSize = 256;
class LogStream final
#if ENABLE(STREAMING_IPC_IN_LOG_FORWARDING)
: public IPC::StreamMessageReceiver {
#else
: public RefCounted<LogStream>
, public IPC::MessageReceiver {
#endif
public:
static Ref<LogStream> create(int32_t pid, LogStreamIdentifier identifier) { return adoptRef(*new LogStream(pid, identifier)); }
~LogStream();
void stopListeningForIPC();
#if ENABLE(STREAMING_IPC_IN_LOG_FORWARDING)
void setup(IPC::StreamServerConnectionHandle&&, CompletionHandler<void(IPC::Semaphore& streamWakeUpSemaphore, IPC::Semaphore& streamClientWaitSemaphore)>&&);
#else
void setup(IPC::Connection&);
void ref() const final { RefCounted::ref(); }
void deref() const final { RefCounted::deref(); }
#endif
LogStreamIdentifier identifier() const { return m_logStreamIdentifier; }
static unsigned logCountForTesting();
private:
LogStream(int32_t pid, LogStreamIdentifier);
#if ENABLE(STREAMING_IPC_IN_LOG_FORWARDING)
void didReceiveStreamMessage(IPC::StreamServerConnection&, IPC::Decoder&) final;
#else
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)
RefPtr<IPC::StreamServerConnection> m_logStreamConnection;
#else
ThreadSafeWeakPtr<IPC::Connection> m_logConnection;
#endif
LogStreamIdentifier m_logStreamIdentifier;
int32_t m_pid { 0 };
};
} // namespace WebKit
#endif // ENABLE(LOGD_BLOCKING_IN_WEBCONTENT)
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