mirror of
https://github.com/RGBCube/serenity
synced 2025-05-31 08:58:11 +00:00
91558fa381
This large block of code is repeated nearly verbatim in LibWeb. Move it to a helper function that both LibIPC and LibWeb can defer to. This will let us make changes to this method in a singular location going forward. Note this is a bit of a regression for the MessagePort. It now suffers from the same performance issue that IPC messages face - we prepend the meessage size to the message buffer. This degredation is very temporary though, as a fix is imminent, and this change makes that fix easier.
66 lines
1.3 KiB
C++
66 lines
1.3 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
* Copyright (c) 2022, the SerenityOS developers.
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/Error.h>
|
|
#include <AK/RefCounted.h>
|
|
#include <AK/RefPtr.h>
|
|
#include <AK/Vector.h>
|
|
#include <LibCore/Forward.h>
|
|
#include <unistd.h>
|
|
|
|
namespace IPC {
|
|
|
|
class AutoCloseFileDescriptor : public RefCounted<AutoCloseFileDescriptor> {
|
|
public:
|
|
AutoCloseFileDescriptor(int fd)
|
|
: m_fd(fd)
|
|
{
|
|
}
|
|
|
|
~AutoCloseFileDescriptor()
|
|
{
|
|
if (m_fd != -1)
|
|
close(m_fd);
|
|
}
|
|
|
|
int value() const { return m_fd; }
|
|
|
|
private:
|
|
int m_fd;
|
|
};
|
|
|
|
struct MessageBuffer {
|
|
ErrorOr<void> transfer_message(Core::LocalSocket& fd_passing_socket, Core::LocalSocket& data_socket);
|
|
|
|
Vector<u8, 1024> data;
|
|
Vector<NonnullRefPtr<AutoCloseFileDescriptor>, 1> fds;
|
|
};
|
|
|
|
enum class ErrorCode : u32 {
|
|
PeerDisconnected
|
|
};
|
|
|
|
template<typename Value>
|
|
using IPCErrorOr = ErrorOr<Value, ErrorCode>;
|
|
|
|
class Message {
|
|
public:
|
|
virtual ~Message() = default;
|
|
|
|
virtual u32 endpoint_magic() const = 0;
|
|
virtual int message_id() const = 0;
|
|
virtual char const* message_name() const = 0;
|
|
virtual bool valid() const = 0;
|
|
virtual ErrorOr<MessageBuffer> encode() const = 0;
|
|
|
|
protected:
|
|
Message() = default;
|
|
};
|
|
|
|
}
|