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https://github.com/RGBCube/serenity
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SystemServer: Add Service::try_create to propagate errors
This static method is used to propagate errors at the creation of the object.
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parent
dd3b65c762
commit
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3 changed files with 25 additions and 20 deletions
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@ -31,26 +31,24 @@ Service* Service::find_by_pid(pid_t pid)
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return (*it).value;
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}
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void Service::setup_socket(SocketDescriptor& socket)
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ErrorOr<void> Service::setup_socket(SocketDescriptor& socket)
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{
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VERIFY(socket.fd == -1);
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MUST(Core::Directory::create(LexicalPath(socket.path).parent(), Core::Directory::CreateDirectories::Yes));
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TRY(Core::Directory::create(LexicalPath(socket.path).parent(), Core::Directory::CreateDirectories::Yes));
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// Note: we use SOCK_CLOEXEC here to make sure we don't leak every socket to
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// all the clients. We'll make the one we do need to pass down !CLOEXEC later
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// after forking off the process.
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int socket_fd = Core::System::socket(AF_LOCAL, SOCK_STREAM | SOCK_NONBLOCK | SOCK_CLOEXEC, 0).release_value_but_fixme_should_propagate_errors();
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int const socket_fd = TRY(Core::System::socket(AF_LOCAL, SOCK_STREAM | SOCK_NONBLOCK | SOCK_CLOEXEC, 0));
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socket.fd = socket_fd;
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if (m_account.has_value()) {
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auto& account = m_account.value();
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// FIXME: Propagate errors
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MUST(Core::System::fchown(socket_fd, account.uid(), account.gid()));
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TRY(Core::System::fchown(socket_fd, account.uid(), account.gid()));
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}
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// FIXME: Propagate errors
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MUST(Core::System::fchmod(socket_fd, socket.permissions));
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TRY(Core::System::fchmod(socket_fd, socket.permissions));
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auto socket_address = Core::SocketAddress::local(socket.path);
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auto un_optional = socket_address.to_sockaddr_un();
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@ -60,16 +58,16 @@ void Service::setup_socket(SocketDescriptor& socket)
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}
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auto un = un_optional.value();
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// FIXME: Propagate errors
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MUST(Core::System::bind(socket_fd, (sockaddr const*)&un, sizeof(un)));
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// FIXME: Propagate errors
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MUST(Core::System::listen(socket_fd, 16));
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TRY(Core::System::bind(socket_fd, (sockaddr const*)&un, sizeof(un)));
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TRY(Core::System::listen(socket_fd, 16));
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return {};
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}
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void Service::setup_sockets()
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ErrorOr<void> Service::setup_sockets()
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{
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for (SocketDescriptor& socket : m_sockets)
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setup_socket(socket);
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TRY(setup_socket(socket));
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return {};
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}
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void Service::setup_notifier()
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@ -338,9 +336,14 @@ Service::Service(Core::ConfigFile const& config, StringView name)
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VERIFY(!m_accept_socket_connections || (m_sockets.size() == 1 && m_lazy && m_multi_instance));
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// MultiInstance doesn't work with KeepAlive.
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VERIFY(!m_multi_instance || !m_keep_alive);
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}
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if (is_enabled())
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setup_sockets();
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ErrorOr<NonnullRefPtr<Service>> Service::try_create(Core::ConfigFile const& config, StringView name)
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{
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auto service = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) Service(config, name)));
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if (service->is_enabled())
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TRY(service->setup_sockets());
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return service;
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}
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void Service::save_to(JsonObject& json)
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