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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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12
Userland/Services/Clipboard/main.cpp
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@ -7,9 +7,8 @@
#include <Clipboard/ClientConnection.h>
#include <Clipboard/Storage.h>
#include <LibCore/EventLoop.h>
#include <LibCore/LocalServer.h>
#include <LibCore/System.h>
#include <LibIPC/ClientConnection.h>
#include <LibIPC/MultiServer.h>
#include <LibMain/Main.h>
ErrorOr<int> serenity_main(Main::Arguments)
@ -18,14 +17,7 @@ ErrorOr<int> serenity_main(Main::Arguments)
Core::EventLoop event_loop;
TRY(Core::System::unveil(nullptr, nullptr));
auto server = TRY(Core::LocalServer::try_create());
TRY(server->take_over_from_system_server());
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<Clipboard::ClientConnection>(move(client_socket), client_id);
};
auto server = TRY(IPC::MultiServer<Clipboard::ClientConnection>::try_create());
Clipboard::Storage::the().on_content_change = [&] {
Clipboard::ClientConnection::for_each_client([&](auto& client) {