mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-26 09:30:24 +00:00
cb87725ec8
This refactor eliminates the need for a second "fd passing socket" on Lagom, as it uses SCM_RIGHTS in the expected fashion, to send fds along with the data of our Unix socket message.
75 lines
1.5 KiB
C++
75 lines
1.5 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;
|
|
};
|
|
|
|
class MessageBuffer {
|
|
public:
|
|
MessageBuffer();
|
|
|
|
ErrorOr<void> extend_data_capacity(size_t capacity);
|
|
ErrorOr<void> append_data(u8 const* values, size_t count);
|
|
|
|
ErrorOr<void> append_file_descriptor(int fd);
|
|
|
|
ErrorOr<void> transfer_message(Core::LocalSocket& socket);
|
|
|
|
private:
|
|
Vector<u8, 1024> m_data;
|
|
Vector<NonnullRefPtr<AutoCloseFileDescriptor>, 1> m_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;
|
|
};
|
|
|
|
}
|