/*
- Copyright (C) 1999-2002 Paul Davis
+ 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
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id$
*/
-#include <algorithm>
-#include <string>
-#include <cmath>
-#include <cerrno>
-#include <unistd.h>
-#include <fcntl.h>
-#include <poll.h>
+#include "pbd/error.h"
+#include "pbd/pthread_utils.h"
+#include "pbd/stacktrace.h"
-#include <glibmm/thread.h>
+#include "ardour/butler.h"
+#include "ardour/route.h"
+#include "ardour/session.h"
+#include "ardour/session_event.h"
+#include "ardour/track.h"
+#include "ardour/types.h"
-#include <pbd/error.h>
-#include <pbd/pthread_utils.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"
+#include "pbd/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
+ BUTLER THREAD
---------------------------------------------------------------------------*/
-int
-Session::start_butler_thread ()
-{
- /* size is in Samples, not bytes */
-
- dstream_buffer_size = (uint32_t) floor (Config->get_track_buffer_seconds() * (float) frame_rate());
-
- Crossfade::set_buffer_size (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 ()
-{
- void* status;
- char c = ButlerRequest::Quit;
- ::write (butler_request_pipe[1], &c, 1);
- pthread_join (butler_thread, &status);
-}
-
void
-Session::schedule_butler_transport_work ()
+Session::adjust_playback_buffering ()
{
- g_atomic_int_inc (&butler_should_do_transport_work);
- summon_butler ();
+ request_stop (false, false);
+ SessionEvent *ev = new SessionEvent (SessionEvent::AdjustPlaybackBuffering, SessionEvent::Add, SessionEvent::Immediate, 0, 0, 0.0);
+ queue_event (ev);
}
void
-Session::schedule_curve_reallocation ()
+Session::adjust_capture_buffering ()
{
- post_transport_work = PostTransportWork (post_transport_work | PostTransportCurveRealloc);
- schedule_butler_transport_work ();
+ request_stop (false, false);
+ SessionEvent *ev = new SessionEvent (SessionEvent::AdjustCaptureBuffering, SessionEvent::Add, SessionEvent::Immediate, 0, 0, 0.0);
+ queue_event (ev);
}
void
-Session::summon_butler ()
+Session::schedule_playback_buffering_adjustment ()
{
- char c = ButlerRequest::Run;
- ::write (butler_request_pipe[1], &c, 1);
+ add_post_transport_work (PostTransportAdjustPlaybackBuffering);
+ _butler->schedule_transport_work ();
}
void
-Session::stop_butler ()
+Session::schedule_capture_buffering_adjustment ()
{
- Glib::Mutex::Lock lm (butler_request_lock);
- char c = ButlerRequest::Pause;
- ::write (butler_request_pipe[1], &c, 1);
- butler_paused.wait(butler_request_lock);
+ add_post_transport_work (PostTransportAdjustCaptureBuffering);
+ _butler->schedule_transport_work ();
}
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 ()
+Session::schedule_curve_reallocation ()
{
- 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*/
- }
- }
- }
-
- //for (i = diskstreams.begin(); i != diskstreams.end(); ++i) {
- // cerr << "BEFORE " << (*i)->name() << ": pb = " << (*i)->playback_buffer_load() << " cp = " << (*i)->capture_buffer_load() << endl;
- //}
-
- 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(); !transport_work_requested() && butler_should_run && i != dsl->end(); ++i) {
-
- boost::shared_ptr<Diskstream> ds = *i;
-
- 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;
-
- 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);
+ add_post_transport_work (PostTransportCurveRealloc);
+ _butler->schedule_transport_work ();
}
-
void
-Session::request_overwrite_buffer (Diskstream* stream)
+Session::request_overwrite_buffer (Track* t)
{
- Event *ev = new Event (Event::Overwrite, Event::Add, Event::Immediate, 0, 0, 0.0);
- ev->set_ptr (stream);
+ SessionEvent *ev = new SessionEvent (SessionEvent::Overwrite, SessionEvent::Add, SessionEvent::Immediate, 0, 0, 0.0);
+ ev->set_ptr (t);
queue_event (ev);
}
/** Process thread. */
void
-Session::overwrite_some_buffers (Diskstream* ds)
+Session::overwrite_some_buffers (Track* t)
{
if (actively_recording()) {
return;
}
- if (ds) {
+ if (t) {
- ds->set_pending_overwrite (true);
+ t->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);
+ boost::shared_ptr<RouteList> rl = routes.reader();
+ for (RouteList::iterator i = rl->begin(); i != rl->end(); ++i) {
+ boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
+ if (tr) {
+ tr->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;
+ add_post_transport_work (PostTransportOverWrite);
+ _butler->schedule_transport_work ();
}
uint32_t
{
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);
-}
projects / ardour.git / blobdiff