rollback to 3428, before the mysterious removal of libs/* at 3431/3432

git-svn-id: svn://localhost/ardour2/branches/3.0@3435 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 179 insertions, 0 deletions

diff --git a/libs/ardour/jack_port.cc b/libs/ardour/jack_port.cc
new file mode 100644
index 0000000000..5fac52af68
--- /dev/null
+++ b/libs/ardour/jack_port.cc
@@ -0,0 +1,179 @@
+/*
+    Copyright (C) 2002-2006 Paul Davis 
+
+    This program 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.
+
+    This program 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 more 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include <pbd/error.h>
+
+#include <ardour/jack_port.h>
+#include <ardour/audioengine.h>
+
+#include "i18n.h"
+
+using namespace ARDOUR;
+using namespace PBD;
+using namespace std;
+
+JackPort::JackPort (const std::string& name, DataType type, Flags flgs) 
+	: Port (name, flgs), _port (0)
+{
+	_port = jack_port_register (engine->jack(), name.c_str(), type.to_jack_type(), flgs, 0);
+
+	if (_port == 0) {
+		throw failed_constructor();
+	}
+	
+	_flags = flgs;
+	_type  = type;
+	_name = jack_port_name (_port);
+}
+
+JackPort::~JackPort ()
+{
+	cerr << "deleting jack port " << _name << endl;
+
+	jack_port_unregister (engine->jack(), _port);
+}
+
+int 
+JackPort::set_name (const string& str)
+{
+	int ret;
+
+	if ((ret = jack_port_set_name (_port, str.c_str())) == 0) {
+		_name = str;
+	}
+	
+	return ret;
+}
+
+int
+JackPort::disconnect ()
+{
+	return jack_port_disconnect (engine->jack(), _port);
+}	
+
+nframes_t
+JackPort::total_latency () const
+{
+	return jack_port_get_total_latency (engine->jack(), _port);
+}
+
+int
+JackPort::reestablish ()
+{
+	string short_name;
+	
+	short_name = _name.substr (_name.find_last_of (':') + 1);
+
+	_port = jack_port_register (engine->jack(), short_name.c_str(), type().to_jack_type(), _flags, 0);
+
+	if (_port == 0) {
+		error << string_compose (_("could not reregister %1"), _name) << endmsg;
+		return -1;
+	}
+
+	reset ();
+	
+
+	return 0;
+}
+
+void
+JackPort::recompute_total_latency () const
+{
+#ifdef HAVE_JACK_RECOMPUTE_LATENCY
+	jack_recompute_total_latency (engine->jack(), _port);
+#endif
+}
+
+int
+JackPort::reconnect ()
+{
+	/* caller must hold process lock; intended to be used only after reestablish() */
+
+	for (set<string>::iterator i = _named_connections.begin(); i != _named_connections.end(); ++i) {
+		if (connect (*i)) {
+			return -1;
+		}
+	}
+
+	return 0;
+}
+
+int
+JackPort::connect (const std::string& other)
+{
+	int ret;
+
+	if (_flags & IsOutput) {
+		/* this is the source */
+		ret = jack_connect (engine->jack(), _name.c_str(), other.c_str());
+	} else {
+		ret = jack_connect (engine->jack(), other.c_str(), _name.c_str());
+	}
+
+	if (ret == 0) {
+		_named_connections.insert (other);
+	}
+	
+	return ret;
+}
+
+int
+JackPort::disconnect (const std::string& other)
+{
+	int ret;
+
+	if (_flags & IsInput) {
+		ret = jack_disconnect (engine->jack(), other.c_str(), _name.c_str());
+	} else {
+		ret = jack_disconnect (engine->jack(), _name.c_str(), other.c_str());
+	}
+
+	set<string>::iterator i = _named_connections.find (other);
+
+	if (i != _named_connections.end()) {
+		_named_connections.erase (i);
+	}
+
+	return ret;
+}
+
+int
+JackPort::disconnect_all ()
+{
+	_named_connections.clear ();
+	return jack_port_disconnect (engine->jack(), _port);
+}
+
+int
+JackPort::get_connections (vector<string>& names) const
+{
+	const char** cstrs =  jack_port_get_connections (_port);
+	int i;
+	
+	if (!cstrs) {
+		return 0;
+	}
+	
+	for (i = 0; cstrs[i]; ++i) {
+		names.push_back (string (cstrs[i]));
+	}
+
+	return i;
+}