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Commit Graph

125 Commits

Author SHA1 Message Date
634d325e5d
Prevent deadlock when disconnecting
The backend holds `_port_callback_mutex` while disconnecting ports.
In some cases disconnecting a port can drop the last reference
resulting in a port-deletion from the connection handler.
This in turn will eventually aquire the `_port_callback_mutex`
and deadlock.

This is now circumvented by using atomic operations instead of
taking a lock to set the `_port_change_flag`.

The flag is also used to trigger a latency update in some cases,
atomic is preferable to taking a lock to set this flag.

--

Full bt: https://paste.debian.net/1184056/
Short:

#1  in pthread_mutex_lock ()
#2  in ARDOUR::PortEngineSharedImpl::port_connect_add_remove_callback()
#3  in ARDOUR::BackendPort::~BackendPort()
#4  in ARDOUR::DummyPort::~DummyPort()
#6  in ARDOUR::DummyAudioPort::~DummyAudioPort()
#7  in boost::checked_delete<ARDOUR::BackendPort>(ARDOUR::BackendPort*)
#12 in boost::shared_ptr<ARDOUR::ProtoPort>::reset()
#13 in ARDOUR::Port::drop()
#14 in ARDOUR::Port::~Port()
#15 in ARDOUR::AudioPort::~AudioPort()
#17 in ARDOUR::AudioEngine::add_pending_port_deletion(ARDOUR::Port*)
#20 in boost::detail::sp_counted_base::release()
#37 in ARDOUR::PortManager::connect_callback() at libs/ardour/port_manager.cc:788
#38 in ARDOUR::DummyAudioBackend::main_process_thread() at libs/backends/dummy/dummy_audiobackend.cc:1018
2021-02-04 21:06:20 +01:00
21e66216be
Separate user-set pretty-names from hardware I/O names
This allow to restore original engine port-names as set
by the backend. ALSA MIDI, CoreAudio, CoreMIDI and PortAudio
drivers can provide human readable physical port names for
some devices.
2021-01-18 03:18:20 +01:00
5e76d63c06
Resolve some Xcode12 C++11, sigc++ issues 2020-12-12 04:46:22 +01:00
17f0b87648
Fix Apple Carbon #define interference 2020-10-11 21:40:31 +02:00
802ddf344a
Remove unused mutex (amend a80064981e) 2020-09-06 05:43:03 +02:00
a80064981e
NO-OP: Consolidate PortConnect code into shared parent class 2020-09-05 23:05:57 +02:00
92f54b3e98
Add API to query if systemic latency can be measured 2020-06-30 03:34:26 +02:00
09aa0a3d1a
Consolidate code using pthread_attr_setstacksize
This also adds some stack constraint to rt and fallback threads
that didn't have those before (ALSA MIDI for example)
2020-06-06 18:35:44 +02:00
3d166c7789
Consolidate stack-size and priority of rt-threads 2020-04-23 01:28:58 +02:00
1e996ca45f add port connect/add/remove callbacks to CoreAudio backend 2020-04-10 10:01:04 -06:00
3188fe00aa fix return value 2020-04-08 18:13:13 -06:00
78a66b7180 improved port cleanup as backend is destroyed 2020-04-07 23:26:51 -06:00
ff41232d16 fix CoreAudio backend to use shared_ptr 2020-04-07 13:52:35 -06:00
b9cb306e8b use shared_ptr to manage backend port lifetimes (Pulse,ALSA,Dummy,JACK)
JACK is not yet finished.

Changes also include minor reformatting and a spelling correction (latecies to latencies)
2020-04-07 13:23:49 -06:00
30766c75e8 buildable version of CoreAudio backend using PortEngineSharedImpl 2020-04-02 19:45:31 -06:00
a31d3689bf tentative changes to extend port engine shared impl to coreaudio 2020-04-02 19:45:31 -06:00
a8ff35accb
Reset DSP load on backend re-start and after freewheeling 2020-03-30 16:58:55 +02:00
c365c6cdb2
Set thread-names (libs) 2020-03-29 14:56:22 +02:00
140a3f4a10 Fix Coreaudio buffersize changes 2020-03-06 05:52:55 +01:00
a9c75f9760
Fix CoreAudio systemic latency, implement hw latency report 2020-02-24 04:24:50 +01:00
06b2eb1c27
Explicitly use OSX
Previously this was inherited via PBD.

On MacOS/X,  this adds
  "-undefined dynamic_lookup -flat_namespace"
and various "-framework .." options to linkflags

Without this flag, .dylibs fail to link usually because
of missing `-lintl` (Undefined symbols: "_libintl_dgettext")

On other systems this is a NO-OP:
CFLAGS_OSX, CXXFLAGS_OSX and LINKFLAGS_OSX
are only set on the darwin platform.
2020-01-25 04:07:41 +01:00
47a62b2850
Update backend GPL boilerplate and (C) from git log 2019-08-03 15:53:16 +02:00
78fc6d6651
Prefix all env variable with "ARDOUR_"
In particular "CONCURRENCY" can be problematic. But in general
it's good practice to use a namespace prefix for app-specifics.
2019-07-26 16:44:29 +02:00
2f91bdfa53
NO-OP: <tab> after <space> fixes in libs 2019-04-13 19:19:29 +02:00
076e9fddd4
Remove ambiguous API implementation
* PortEngine::available() implementation
* AudioEngine::connected() wrapper

Eventually we may re-introduce PortEngine::available along
with a libardour internal port-engine.
2018-11-28 15:32:40 +01:00
e047b01aa2 add new API for retrieving port flags from backend 2018-10-17 14:11:37 -04:00
37df98d0af CoreAudio/MIDI: add locks for port-registration
CoreMIDI ports are dynamic. When dis/connecting a device CoreAudio's
AudioHardware-PropertyListener triggers a callback which can
add/remove ports.

This can not happen concurrently with processing, but it may happen
concurrently with a user creating tracks using Ardour's UI
and/or session-load/setup.
2018-03-29 18:15:20 +02:00
7671268bc3 strlen is not a member of std. 2018-01-03 18:06:55 +01:00
4ebcef53f8 Relax max MIDI msg size to 256 (for long sysex)
(win-mme already used 256, CoreMIDI can handle up to 256 as can ALSA)
2017-12-19 17:41:57 +01:00
c0dbe8eaaf Move coreaudio_set_realtime_policy into libpbd 2017-10-30 16:31:38 +01:00
ab3889fff8 Propagate Latency to backend/system ports
Set accumulated capture-latency for physical-outputs
and accumulated playback-latency for physical-inputs
after Ardour is done setting all non-physical port latencies.

This will be needed for latency-compensation of the complete graph.
2017-09-23 00:34:01 +02:00
666aa5a557 More Coreaudio SDK fixes, after 30b087ab3 2017-09-19 05:20:05 +02:00
1ec471c961 partially revert 30b087ab3, CoreAudio SDK uses "Frames" 2017-09-19 04:47:10 +02:00
30b087ab3d globally change all use of "frame" to refer to audio into "sample".
Generated by tools/f2s. Some hand-editing will be required in a few places to fix up comments related to timecode
and video in order to keep the legible
2017-09-18 12:39:17 -04:00
7258c6334d Namespace PBD::RingBuffer
class RingBuffer<> is a very generic name and should not pollute the
global namespace.
2017-09-16 16:37:29 +02:00
467c801ce8 Abstract definition of rt-scheduler policy
pthread-w32 does not support pthread_setschedparam() with
SCHED_FIFO and bails out. While pthread_create() simply ignores the policy
and sets the priority regadless.

This only affects ctrl-surface event-loops & AutomationWatch on Windows.
2017-08-29 20:35:36 +02:00
df659e91f1 Consolidate _realtime_pthread_create() into libpbd. 2017-08-29 17:25:23 +02:00
e0a83a758e Redesign Session+Route Template Meta Script API
Remove special-cased script types. Allow Action-Scripts to be re-used
for session-setup or route-templates.
2017-08-18 20:42:55 +02:00
8c61c7f14a amend f4c76f89d3a; fix blind coding typos 2017-08-05 16:06:15 +02:00
f4c76f89d3 Coreaudio backend RT-safe MIDI buffer allocation 2017-08-05 15:36:36 +02:00
2b7c585dba Update backend API: read-only MIDI input buffers 2017-08-05 15:36:36 +02:00
c125cd2647 Reduce DSP thread priority (main-i/o > midi i/o > computation) 2017-08-05 01:28:11 +02:00
38c5e9de6d CoreAudio: Set MachThread RT Priority 2017-08-04 06:25:23 +02:00
6b5d374352 Some more assert() debugging 2017-08-03 23:46:05 +02:00
f9db9bf5fd Retain order of concurrent MIDI events
This fixes an issue with FaderPort8 (and maybe other surfaces or synths).
2017-04-08 23:43:50 +02:00
43bd7f5db1 fix const-cast 2016-11-12 16:20:43 +01:00
56711b99c9 Work around OSX MIDI devices that send no timestamps 2016-10-19 19:45:53 +02:00
355fa64c79 fix Coreaudio Aggregate for separate devices with identical names 2016-08-28 13:44:30 +02:00
957f59f351 print a warning if CoreAudio falls back to non realtime priority 2016-08-22 17:38:45 +02:00
cf52d6e4b4 enough with umpteen "i18n.h" files. Consolidate on pbd/i18n.h 2016-07-14 14:45:23 -04:00