remove empty sigc++2 directory

git-svn-id: svn://localhost/ardour2/branches/3.0@3432 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 0 insertions, 471 deletions

diff --git a/libs/ardour/session_butler.cc b/libs/ardour/session_butler.cc
deleted file mode 100644
index ec5de23caf..0000000000
--- a/libs/ardour/session_butler.cc
+++ /dev/null
@@ -1,471 +0,0 @@
-/*
-    Copyright (C) 1999-2002 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 <algorithm>
-#include <string>
-#include <cmath>
-#include <cerrno>
-#include <unistd.h>
-#include <fcntl.h>
-#include <poll.h>
-
-#include <glibmm/thread.h>
-
-#include <pbd/error.h>
-#include <pbd/pthread_utils.h>
-#include <pbd/stacktrace.h>
-
-#include <ardour/configuration.h>
-#include <ardour/audioengine.h>
-#include <ardour/session.h>
-#include <ardour/audio_diskstream.h>
-#include <ardour/crossfade.h>
-#include <ardour/timestamps.h>
-
-#include "i18n.h"
-
-using namespace std;
-using namespace ARDOUR;
-using namespace PBD;
-
-static float _read_data_rate;
-static float _write_data_rate;
-
-/* XXX put this in the right place */
-
-static inline uint32_t next_power_of_two (uint32_t n)
-{
-	--n;
-	n |= n >> 16;
-	n |= n >> 8;
-	n |= n >> 4;
-	n |= n >> 2;
-	n |= n >> 1;
-	++n;
-	return n;
-}
-
-/*---------------------------------------------------------------------------
- BUTLER THREAD 
- ---------------------------------------------------------------------------*/
-
-int
-Session::start_butler_thread ()
-{
-	/* size is in Samples, not bytes */
-	audio_dstream_buffer_size = (uint32_t) floor (Config->get_audio_track_buffer_seconds() * (float) frame_rate());
-	
-	/* size is in bytes
-	 * XXX: Jack needs to tell us the MIDI buffer size
-	 * (i.e. how many MIDI bytes we might see in a cycle)
-	 */
-	midi_dstream_buffer_size = (uint32_t) floor (Config->get_midi_track_buffer_seconds() * (float)frame_rate());
-	
-	Crossfade::set_buffer_size (audio_dstream_buffer_size);
-
-	butler_should_run = false;
-
-	if (pipe (butler_request_pipe)) {
-		error << string_compose(_("Cannot create transport request signal pipe (%1)"), strerror (errno)) << endmsg;
-		return -1;
-	}
-
-	if (fcntl (butler_request_pipe[0], F_SETFL, O_NONBLOCK)) {
-		error << string_compose(_("UI: cannot set O_NONBLOCK on butler request pipe (%1)"), strerror (errno)) << endmsg;
-		return -1;
-	}
-
-	if (fcntl (butler_request_pipe[1], F_SETFL, O_NONBLOCK)) {
-		error << string_compose(_("UI: cannot set O_NONBLOCK on butler request pipe (%1)"), strerror (errno)) << endmsg;
-		return -1;
-	}
-
-	if (pthread_create_and_store ("disk butler", &butler_thread, 0, _butler_thread_work, this)) {
-		error << _("Session: could not create butler thread") << endmsg;
-		return -1;
-	}
-
-	// pthread_detach (butler_thread);
-
-	return 0;
-}
-
-void
-Session::terminate_butler_thread ()
-{
-	if (butler_thread) {
-		void* status;
-		char c = ButlerRequest::Quit;
-		::write (butler_request_pipe[1], &c, 1);
-		pthread_join (butler_thread, &status);
-	}
-}
-
-void
-Session::schedule_butler_transport_work ()
-{
-	g_atomic_int_inc (&butler_should_do_transport_work);
-	summon_butler ();
-}
-
-void
-Session::schedule_curve_reallocation ()
-{
-	post_transport_work = PostTransportWork (post_transport_work | PostTransportCurveRealloc);
-	schedule_butler_transport_work ();
-}
-
-void
-Session::summon_butler ()
-{
-	char c = ButlerRequest::Run;
-	::write (butler_request_pipe[1], &c, 1);
-	// PBD::stacktrace (cerr);
-}
-
-void
-Session::stop_butler ()
-{
-	Glib::Mutex::Lock lm (butler_request_lock);
-	char c = ButlerRequest::Pause;
-	::write (butler_request_pipe[1], &c, 1);
-	butler_paused.wait(butler_request_lock);
-}
-
-void
-Session::wait_till_butler_finished ()
-{
-	Glib::Mutex::Lock lm (butler_request_lock);
-	char c = ButlerRequest::Wake;
-	::write (butler_request_pipe[1], &c, 1);
-	butler_paused.wait(butler_request_lock);
-}
-
-void *
-Session::_butler_thread_work (void* arg)
-{
-	PBD::ThreadCreated (pthread_self(), X_("Butler"));
-	return ((Session *) arg)->butler_thread_work ();
-	return 0;
-}
-
-void *
-Session::butler_thread_work ()
-{
-	uint32_t err = 0;
-	int32_t bytes;
-	bool compute_io;
-	struct timeval begin, end;
-	struct pollfd pfd[1];
-	bool disk_work_outstanding = false;
-	DiskstreamList::iterator i;
-
-	while (true) {
-		pfd[0].fd = butler_request_pipe[0];
-		pfd[0].events = POLLIN|POLLERR|POLLHUP;
-		
-		if (poll (pfd, 1, (disk_work_outstanding ? 0 : -1)) < 0) {
-			
-			if (errno == EINTR) {
-				continue;
-			}
-			
-			error << string_compose (_("poll on butler request pipe failed (%1)"),
-					  strerror (errno))
-			      << endmsg;
-			break;
-		}
-
-		if (pfd[0].revents & ~POLLIN) {
-			error << string_compose (_("Error on butler thread request pipe: fd=%1 err=%2"), pfd[0].fd, pfd[0].revents) << endmsg;
-			break;
-		}
-		
-		if (pfd[0].revents & POLLIN) {
-
-			char req;
-			
-			/* empty the pipe of all current requests */
-			
-			while (1) {
-				size_t nread = ::read (butler_request_pipe[0], &req, sizeof (req));
-				if (nread == 1) {
-					
-					switch ((ButlerRequest::Type) req) {
-						
-					case ButlerRequest::Wake:
-						break;
-
-					case ButlerRequest::Run:
-						butler_should_run = true;
-						break;
-						
-					case ButlerRequest::Pause:
-						butler_should_run = false;
-						break;
-						
-					case ButlerRequest::Quit:
-						pthread_exit_pbd (0);
-						/*NOTREACHED*/
-						break;
-						
-					default:
-						break;
-					}
-					
-				} else if (nread == 0) {
-					break;
-				} else if (errno == EAGAIN) {
-					break;
-				} else {
-					fatal << _("Error reading from butler request pipe") << endmsg;
-					/*NOTREACHED*/
-				}
-			}
-		}
-
-		if (transport_work_requested()) {
-			butler_transport_work ();
-		}
-
-		disk_work_outstanding = false;
-		bytes = 0;
-		compute_io = true;
-
-		gettimeofday (&begin, 0);
-
-		boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader ();
-
-//		for (i = dsl->begin(); i != dsl->end(); ++i) {
-//			cerr << "BEFORE " << (*i)->name() << ": pb = " << (*i)->playback_buffer_load() << " cp = " << (*i)->capture_buffer_load() << endl;
-//		}
-
-		for (i = dsl->begin(); !transport_work_requested() && butler_should_run && i != dsl->end(); ++i) {
-
-			boost::shared_ptr<Diskstream> ds = *i;
-
-			/* don't read inactive tracks */
-
-			IO* io = ds->io();
-			
-			if (io && !io->active()) {
-				continue;
-			}
-
-			switch (ds->do_refill ()) {
-			case 0:
-				bytes += ds->read_data_count();
-				break;
-			case 1:
-				bytes += ds->read_data_count();
-				disk_work_outstanding = true;
-				break;
-				
-			default:
-				compute_io = false;
-				error << string_compose(_("Butler read ahead failure on dstream %1"), (*i)->name()) << endmsg;
-				break;
-			}
-
-		}
-
-		if (i != dsl->end()) {
-			/* we didn't get to all the streams */
-			disk_work_outstanding = true;
-		}
-		
-		if (!err && transport_work_requested()) {
-			continue;
-		}
-
-		if (compute_io) {
-			gettimeofday (&end, 0);
-			
-			double b = begin.tv_sec  + (begin.tv_usec/1000000.0);
-			double e = end.tv_sec + (end.tv_usec / 1000000.0);
-			
-			_read_data_rate = bytes / (e - b);
-		}
-
-		bytes = 0;
-		compute_io = true;
-		gettimeofday (&begin, 0);
-
-		for (i = dsl->begin(); !transport_work_requested() && butler_should_run && i != dsl->end(); ++i) {
-			// cerr << "write behind for " << (*i)->name () << endl;
-
-			/* note that we still try to flush diskstreams attached to inactive routes
-			 */
-			
-			switch ((*i)->do_flush (Session::ButlerContext)) {
-			case 0:
-				bytes += (*i)->write_data_count();
-				break;
-			case 1:
-				bytes += (*i)->write_data_count();
-				disk_work_outstanding = true;
-				break;
-				
-			default:
-				err++;
-				compute_io = false;
-				error << string_compose(_("Butler write-behind failure on dstream %1"), (*i)->name()) << endmsg;
-				/* don't break - try to flush all streams in case they 
-				   are split across disks.
-				*/
-			}
-		}
-
-		if (err && actively_recording()) {
-			/* stop the transport and try to catch as much possible
-			   captured state as we can.
-			*/
-			request_stop ();
-		}
-
-		if (i != dsl->end()) {
-			/* we didn't get to all the streams */
-			disk_work_outstanding = true;
-		}
-		
-		if (!err && transport_work_requested()) {
-			continue;
-		}
-
-		if (compute_io) {
-			gettimeofday (&end, 0);
-			
-			double b = begin.tv_sec  + (begin.tv_usec/1000000.0);
-			double e = end.tv_sec + (end.tv_usec / 1000000.0);
-			
-			_write_data_rate = bytes / (e - b);
-		}
-		
-		if (!disk_work_outstanding) {
-			refresh_disk_space ();
-		}
-
-
-		{
-			Glib::Mutex::Lock lm (butler_request_lock);
-
-			if (butler_should_run && (disk_work_outstanding || transport_work_requested())) {
-//				for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-//					cerr << "AFTER " << (*i)->name() << ": pb = " << (*i)->playback_buffer_load() << " cp = " << (*i)->capture_buffer_load() << endl;
-//				}
-
-				continue;
-			}
-
-			butler_paused.signal();
-		}
-	}
-
-	pthread_exit_pbd (0);
-	/*NOTREACHED*/
-	return (0);
-}
-
-
-void
-Session::request_overwrite_buffer (Diskstream* stream)
-{
-	Event *ev = new Event (Event::Overwrite, Event::Add, Event::Immediate, 0, 0, 0.0);
-	ev->set_ptr (stream);
-	queue_event (ev);
-}
-
-/** Process thread. */
-void
-Session::overwrite_some_buffers (Diskstream* ds)
-{
-	if (actively_recording()) {
-		return;
-	}
-
-	if (ds) {
-
-		ds->set_pending_overwrite (true);
-
-	} else {
-
-		boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
-		for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
-			(*i)->set_pending_overwrite (true);
-		}
-	}
-
-	post_transport_work = PostTransportWork (post_transport_work | PostTransportOverWrite);
-	schedule_butler_transport_work ();
-}
-
-float
-Session::read_data_rate () const
-{
-	/* disk i/o in excess of 10000MB/sec indicate the buffer cache
-	   in action. ignore it.
-	*/
-	return _read_data_rate > 10485760000.0f ? 0.0f : _read_data_rate;
-}
-
-float
-Session::write_data_rate () const
-{
-	/* disk i/o in excess of 10000MB/sec indicate the buffer cache
-	   in action. ignore it.
-	*/
-	return _write_data_rate > 10485760000.0f ? 0.0f : _write_data_rate;
-}
-
-uint32_t
-Session::playback_load ()
-{
-	return (uint32_t) g_atomic_int_get (&_playback_load);
-}
-
-uint32_t
-Session::capture_load ()
-{
-	return (uint32_t) g_atomic_int_get (&_capture_load);
-}
-
-uint32_t
-Session::playback_load_min ()
-{
-	return (uint32_t) g_atomic_int_get (&_playback_load_min);
-}
-
-uint32_t
-Session::capture_load_min ()
-{
-	return (uint32_t) g_atomic_int_get (&_capture_load_min);
-}
-
-void
-Session::reset_capture_load_min ()
-{
-	g_atomic_int_set (&_capture_load_min, 100);
-}
-
-
-void
-Session::reset_playback_load_min ()
-{
-	g_atomic_int_set (&_playback_load_min, 100);
-}