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Diffstat (limited to 'ingen/client/ThreadedSigClientInterface.hpp')
| -rw-r--r-- | ingen/client/ThreadedSigClientInterface.hpp | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/ingen/client/ThreadedSigClientInterface.hpp b/ingen/client/ThreadedSigClientInterface.hpp new file mode 100644 index 00000000..6ded560e --- /dev/null +++ b/ingen/client/ThreadedSigClientInterface.hpp @@ -0,0 +1,151 @@ +/* This file is part of Ingen. + * Copyright 2007-2011 David Robillard <http://drobilla.net> + * + * Ingen is free software; you can redistribute it and/or modify it under the + * terms of the GNU General Public License as published by the Free Software + * Foundation; either version 2 of the License, or (at your option) any later + * version. + * + * Ingen is distributed in the hope that it will be useful, but WITHOUT ANY + * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef INGEN_CLIENT_THREADEDSIGCLIENTINTERFACE_HPP +#define INGEN_CLIENT_THREADEDSIGCLIENTINTERFACE_HPP + +#include <stdint.h> + +#include <string> + +#undef nil +#include <sigc++/sigc++.h> +#include <glibmm/thread.h> + +#include "raul/Atom.hpp" +#include "raul/SRSWQueue.hpp" + +#include "ingen/ClientInterface.hpp" +#include "ingen/client/SigClientInterface.hpp" + +/** Returns nothing and takes no parameters (because they have all been bound) */ +typedef sigc::slot<void> Closure; + +namespace Ingen { + +class ServerInterface; + +namespace Client { + +/** A LibSigC++ signal emitting interface for clients to use. + * + * This emits signals (possibly) in a different thread than the ClientInterface + * functions are called. It must be explicitly driven with the emit_signals() + * function, which fires all enqueued signals up until the present. You can + * use this in a GTK idle callback for receiving thread safe engine signals. + */ +class ThreadedSigClientInterface : public SigClientInterface +{ +public: + ThreadedSigClientInterface(uint32_t queue_size) + : _sigs(queue_size) + , response_slot(_signal_response.make_slot()) + , error_slot(_signal_error.make_slot()) + , new_port_slot(_signal_new_port.make_slot()) + , put_slot(_signal_put.make_slot()) + , connection_slot(_signal_connection.make_slot()) + , object_deleted_slot(_signal_object_deleted.make_slot()) + , object_moved_slot(_signal_object_moved.make_slot()) + , disconnection_slot(_signal_disconnection.make_slot()) + , disconnect_all_slot(_signal_disconnect_all.make_slot()) + , variable_change_slot(_signal_variable_change.make_slot()) + , property_change_slot(_signal_property_change.make_slot()) + , port_value_slot(_signal_port_value.make_slot()) + , activity_slot(_signal_activity.make_slot()) + {} + + virtual Raul::URI uri() const { return "http://drobilla.net/ns/ingen#internal"; } + + void bundle_begin() + { push_sig(bundle_begin_slot); } + + void bundle_end() + { push_sig(bundle_end_slot); } + + void response(int32_t id, Status status) + { push_sig(sigc::bind(response_slot, id, status)); } + + void error(const std::string& msg) + { push_sig(sigc::bind(error_slot, msg)); } + + void put(const Raul::URI& path, + const Resource::Properties& properties, + Resource::Graph ctx=Resource::DEFAULT) + { push_sig(sigc::bind(put_slot, path, properties, ctx)); } + + void delta(const Raul::URI& path, + const Resource::Properties& remove, + const Resource::Properties& add) + { push_sig(sigc::bind(delta_slot, path, remove, add)); } + + void connect(const Raul::Path& src_port_path, const Raul::Path& dst_port_path) + { push_sig(sigc::bind(connection_slot, src_port_path, dst_port_path)); } + + void del(const Raul::URI& uri) + { push_sig(sigc::bind(object_deleted_slot, uri)); } + + void move(const Raul::Path& old_path, const Raul::Path& new_path) + { push_sig(sigc::bind(object_moved_slot, old_path, new_path)); } + + void disconnect(const Raul::URI& src, const Raul::URI& dst) + { push_sig(sigc::bind(disconnection_slot, src, dst)); } + + void disconnect_all(const Raul::Path& parent_patch_path, const Raul::Path& path) + { push_sig(sigc::bind(disconnect_all_slot, parent_patch_path, path)); } + + void set_property(const Raul::URI& subject, const Raul::URI& key, const Raul::Atom& value) + { push_sig(sigc::bind(property_change_slot, subject, key, value)); } + + void activity(const Raul::Path& port_path, const Raul::Atom& value) + { push_sig(sigc::bind(activity_slot, port_path, value)); } + + /** Process all queued events - Called from GTK thread to emit signals. */ + bool emit_signals(); + +private: + void push_sig(Closure ev); + + Glib::Mutex _mutex; + Glib::Cond _cond; + + Raul::SRSWQueue<Closure> _sigs; + + sigc::slot<void> bundle_begin_slot; + sigc::slot<void> bundle_end_slot; + sigc::slot<void, int32_t, Status> response_slot; + sigc::slot<void, std::string> error_slot; + sigc::slot<void, Raul::URI, Raul::URI, Raul::Symbol> new_plugin_slot; + sigc::slot<void, Raul::Path, Raul::URI, uint32_t, bool> new_port_slot; + sigc::slot<void, Raul::URI, Resource::Properties, + Resource::Graph> put_slot; + sigc::slot<void, Raul::URI, Resource::Properties, + Resource::Properties> delta_slot; + sigc::slot<void, Raul::Path, Raul::Path> connection_slot; + sigc::slot<void, Raul::URI> object_deleted_slot; + sigc::slot<void, Raul::Path, Raul::Path> object_moved_slot; + sigc::slot<void, Raul::URI, Raul::URI> disconnection_slot; + sigc::slot<void, Raul::Path, Raul::Path> disconnect_all_slot; + sigc::slot<void, Raul::URI, Raul::URI, Raul::Atom> variable_change_slot; + sigc::slot<void, Raul::URI, Raul::URI, Raul::Atom> property_change_slot; + sigc::slot<void, Raul::Path, Raul::Atom> port_value_slot; + sigc::slot<void, Raul::Path, Raul::Atom> activity_slot; +}; + +} // namespace Client +} // namespace Ingen + +#endif |