mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-10-31 13:20:59 +00:00
d58a8b5146
The default limit (at least on Linux) causes us to run out of file descriptors at around 15 tabs. Increase this limit to 8k. This is a rather arbitrary number, but matches the limit set by Chrome.
132 lines
4.1 KiB
C++
132 lines
4.1 KiB
C++
/*
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* Copyright (c) 2024, Andrew Kaster <akaster@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/ByteString.h>
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#include <LibCore/Process.h>
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#include <LibCore/StandardPaths.h>
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#include <LibCore/System.h>
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#include <LibIPC/ConnectionToServer.h>
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#include <LibWebView/ChromeProcess.h>
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namespace WebView {
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static HashMap<int, RefPtr<UIProcessConnectionFromClient>> s_connections;
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class UIProcessClient final
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: public IPC::ConnectionToServer<UIProcessClientEndpoint, UIProcessServerEndpoint> {
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C_OBJECT(UIProcessClient);
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private:
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UIProcessClient(NonnullOwnPtr<Core::LocalSocket>);
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};
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ErrorOr<ChromeProcess> ChromeProcess::create()
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{
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// Increase the open file limit, as the default limits on Linux cause us to run out of file descriptors with around 15 tabs open.
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TRY(Core::System::set_resource_limits(RLIMIT_NOFILE, 8192));
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return ChromeProcess {};
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}
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ErrorOr<ChromeProcess::ProcessDisposition> ChromeProcess::connect(Vector<ByteString> const& raw_urls, bool new_window)
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{
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static constexpr auto process_name = "Ladybird"sv;
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auto [socket_path, pid_path] = TRY(Core::IPCProcess::paths_for_process(process_name));
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if (auto pid = TRY(Core::IPCProcess::get_process_pid(process_name, pid_path)); pid.has_value()) {
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TRY(connect_as_client(socket_path, raw_urls, new_window));
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return ProcessDisposition::ExitProcess;
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}
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TRY(connect_as_server(socket_path));
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m_pid_path = pid_path;
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m_pid_file = TRY(Core::File::open(pid_path, Core::File::OpenMode::Write));
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TRY(m_pid_file->write_until_depleted(ByteString::number(::getpid())));
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return ProcessDisposition::ContinueMainProcess;
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}
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ErrorOr<void> ChromeProcess::connect_as_client(ByteString const& socket_path, Vector<ByteString> const& raw_urls, bool new_window)
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{
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auto socket = TRY(Core::LocalSocket::connect(socket_path));
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auto client = UIProcessClient::construct(move(socket));
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if (new_window) {
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if (!client->send_sync_but_allow_failure<Messages::UIProcessServer::CreateNewWindow>(raw_urls))
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dbgln("Failed to send CreateNewWindow message to UIProcess");
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} else {
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if (!client->send_sync_but_allow_failure<Messages::UIProcessServer::CreateNewTab>(raw_urls))
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dbgln("Failed to send CreateNewTab message to UIProcess");
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}
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return {};
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}
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ErrorOr<void> ChromeProcess::connect_as_server(ByteString const& socket_path)
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{
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auto socket_fd = TRY(Core::IPCProcess::create_ipc_socket(socket_path));
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m_socket_path = socket_path;
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auto local_server = TRY(Core::LocalServer::try_create());
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TRY(local_server->take_over_fd(socket_fd));
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m_server_connection = TRY(IPC::MultiServer<UIProcessConnectionFromClient>::try_create(move(local_server)));
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m_server_connection->on_new_client = [this](auto& client) {
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client.on_new_tab = [this](auto raw_urls) {
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if (this->on_new_tab)
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this->on_new_tab(raw_urls);
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};
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client.on_new_window = [this](auto raw_urls) {
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if (this->on_new_window)
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this->on_new_window(raw_urls);
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};
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};
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return {};
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}
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ChromeProcess::~ChromeProcess()
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{
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if (m_pid_file) {
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MUST(m_pid_file->truncate(0));
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MUST(Core::System::unlink(m_pid_path));
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}
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if (!m_socket_path.is_empty())
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MUST(Core::System::unlink(m_socket_path));
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}
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UIProcessClient::UIProcessClient(NonnullOwnPtr<Core::LocalSocket> socket)
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: IPC::ConnectionToServer<UIProcessClientEndpoint, UIProcessServerEndpoint>(*this, move(socket))
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{
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}
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UIProcessConnectionFromClient::UIProcessConnectionFromClient(NonnullOwnPtr<Core::LocalSocket> socket, int client_id)
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: IPC::ConnectionFromClient<UIProcessClientEndpoint, UIProcessServerEndpoint>(*this, move(socket), client_id)
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{
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s_connections.set(client_id, *this);
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}
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void UIProcessConnectionFromClient::die()
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{
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s_connections.remove(client_id());
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}
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void UIProcessConnectionFromClient::create_new_tab(Vector<ByteString> const& urls)
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{
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if (on_new_tab)
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on_new_tab(urls);
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}
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void UIProcessConnectionFromClient::create_new_window(Vector<ByteString> const& urls)
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{
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if (on_new_window)
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on_new_window(urls);
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}
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}
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