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LibIPC: Add IPC::MultiServer convenience class

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This encapsulates what our multi-client IPC servers typically do on
startup:

    1. Create a Core::LocalServer
    2. Take over a listening socket file descriptor from SystemServer
    3. Set up an accept handler for incoming connections

IPC::MultiServer does all this for you! All you have to do is provide
the relevant client connection type as a template argument.
This commit is contained in:
Andreas Kling 2021-12-06 17:54:11 +01:00
parent 81047d8f9c
commit 6d0f504822
11 changed files with 62 additions and 81 deletions
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18
Userland/Services/WindowServer/EventLoop.cpp
View file

@ -19,26 +19,12 @@
namespace WindowServer {
EventLoop::EventLoop()
: m_window_server(Core::LocalServer::construct())
, m_wm_server(Core::LocalServer::construct())
{
m_keyboard_fd = open("/dev/keyboard0", O_RDONLY | O_NONBLOCK | O_CLOEXEC);
m_mouse_fd = open("/dev/mouse0", O_RDONLY | O_NONBLOCK | O_CLOEXEC);
MUST(m_window_server->take_over_from_system_server("/tmp/portal/window"));
MUST(m_wm_server->take_over_from_system_server("/tmp/portal/wm"));
m_window_server->on_accept = [&](auto client_socket) {
static int s_next_client_id = 0;
int client_id = ++s_next_client_id;
(void)IPC::new_client_connection<ClientConnection>(move(client_socket), client_id);
};
m_wm_server->on_accept = [&](auto client_socket) {
static int s_next_wm_id = 0;
int wm_id = ++s_next_wm_id;
(void)IPC::new_client_connection<WMClientConnection>(move(client_socket), wm_id);
};
m_window_server = MUST(IPC::MultiServer<ClientConnection>::try_create("/tmp/portal/window"));
m_wm_server = MUST(IPC::MultiServer<WMClientConnection>::try_create("/tmp/portal/wm"));
if (m_keyboard_fd >= 0) {
m_keyboard_notifier = Core::Notifier::construct(m_keyboard_fd, Core::Notifier::Read);

8
Userland/Services/WindowServer/EventLoop.h
View file

@ -6,10 +6,12 @@
#pragma once
#include "ClientConnection.h"
#include "WMClientConnection.h"
#include <AK/ByteBuffer.h>
#include <LibCore/EventLoop.h>
#include <LibCore/LocalServer.h>
#include <LibCore/Notifier.h>
#include <LibIPC/MultiServer.h>
namespace WindowServer {
@ -31,8 +33,8 @@ private:
RefPtr<Core::Notifier> m_keyboard_notifier;
int m_mouse_fd { -1 };
RefPtr<Core::Notifier> m_mouse_notifier;
RefPtr<Core::LocalServer> m_window_server;
RefPtr<Core::LocalServer> m_wm_server;
OwnPtr<IPC::MultiServer<ClientConnection>> m_window_server;
OwnPtr<IPC::MultiServer<WMClientConnection>> m_wm_server;
};
}