Import libpulse poller integration, add tests
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@ -1,5 +1,5 @@
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project (liberty C)
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cmake_minimum_required (VERSION 2.8.5)
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cmake_minimum_required (VERSION 2.8.12)
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# Moar warnings
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if ("${CMAKE_C_COMPILER_ID}" MATCHES "GNU" OR CMAKE_COMPILER_IS_GNUCC)
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@ -36,7 +36,17 @@ endforeach ()
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# Build some unit tests
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include_directories (${PROJECT_SOURCE_DIR})
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enable_testing ()
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foreach (name liberty proto)
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set (tests liberty proto)
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pkg_check_modules (libpulse libpulse)
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if (libpulse_FOUND)
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list (APPEND tests pulse)
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list (APPEND common_libraries ${libpulse_LIBRARIES})
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include_directories (${libpulse_INCLUDE_DIRS})
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link_directories (${libpulse_LIBRARY_DIRS})
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endif ()
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foreach (name ${tests})
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add_executable (test-${name} tests/${name}.c ${common_sources})
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add_threads (test-${name})
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target_link_libraries (test-${name} ${common_libraries})
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348
liberty-pulse.c
Normal file
348
liberty-pulse.c
Normal file
@ -0,0 +1,348 @@
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/*
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* liberty-pulse.c: PulseAudio mainloop abstraction
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*
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* Copyright (c) 2016 - 2021, Přemysl Eric Janouch <p@janouch.name>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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#include <pulse/mainloop.h>
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// --- PulseAudio mainloop abstraction -----------------------------------------
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struct pa_io_event
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{
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LIST_HEADER (pa_io_event)
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pa_mainloop_api *api; ///< Parent structure
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struct poller_fd fd; ///< Underlying FD event
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pa_io_event_cb_t dispatch; ///< Dispatcher
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pa_io_event_destroy_cb_t free; ///< Destroyer
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void *user_data; ///< User data
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};
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struct pa_time_event
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{
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LIST_HEADER (pa_time_event)
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pa_mainloop_api *api; ///< Parent structure
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struct poller_timer timer; ///< Underlying timer event
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pa_time_event_cb_t dispatch; ///< Dispatcher
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pa_time_event_destroy_cb_t free; ///< Destroyer
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void *user_data; ///< User data
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};
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struct pa_defer_event
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{
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LIST_HEADER (pa_defer_event)
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pa_mainloop_api *api; ///< Parent structure
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struct poller_idle idle; ///< Underlying idle event
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pa_defer_event_cb_t dispatch; ///< Dispatcher
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pa_defer_event_destroy_cb_t free; ///< Destroyer
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void *user_data; ///< User data
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};
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struct poller_pa
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{
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struct poller *poller; ///< The underlying event loop
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pa_io_event *io_list; ///< I/O events
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pa_time_event *time_list; ///< Timer events
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pa_defer_event *defer_list; ///< Deferred events
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};
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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static short
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poller_pa_flags_to_events (pa_io_event_flags_t flags)
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{
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short result = 0;
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if (flags & PA_IO_EVENT_ERROR) result |= POLLERR;
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if (flags & PA_IO_EVENT_HANGUP) result |= POLLHUP;
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if (flags & PA_IO_EVENT_INPUT) result |= POLLIN;
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if (flags & PA_IO_EVENT_OUTPUT) result |= POLLOUT;
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return result;
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}
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static pa_io_event_flags_t
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poller_pa_events_to_flags (short events)
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{
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pa_io_event_flags_t result = 0;
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if (events & POLLERR) result |= PA_IO_EVENT_ERROR;
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if (events & POLLHUP) result |= PA_IO_EVENT_HANGUP;
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if (events & POLLIN) result |= PA_IO_EVENT_INPUT;
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if (events & POLLOUT) result |= PA_IO_EVENT_OUTPUT;
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return result;
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}
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static struct timeval
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poller_pa_get_current_time (void)
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{
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struct timeval tv;
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#ifdef _POSIX_TIMERS
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struct timespec tp;
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hard_assert (clock_gettime (CLOCK_REALTIME, &tp) != -1);
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tv.tv_sec = tp.tv_sec;
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tv.tv_usec = tp.tv_nsec / 1000;
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#else
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gettimeofday (&tv, NULL);
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#endif
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return tv;
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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static void
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poller_pa_io_dispatcher (const struct pollfd *pfd, void *user_data)
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{
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pa_io_event *self = user_data;
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self->dispatch (self->api, self,
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pfd->fd, poller_pa_events_to_flags (pfd->revents), self->user_data);
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}
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static void
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poller_pa_io_enable (pa_io_event *self, pa_io_event_flags_t events)
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{
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struct poller_fd *fd = &self->fd;
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if (events)
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poller_fd_set (fd, poller_pa_flags_to_events (events));
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else
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poller_fd_reset (fd);
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}
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static pa_io_event *
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poller_pa_io_new (pa_mainloop_api *api, int fd_, pa_io_event_flags_t events,
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pa_io_event_cb_t cb, void *userdata)
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{
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pa_io_event *self = xcalloc (1, sizeof *self);
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self->api = api;
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self->dispatch = cb;
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self->user_data = userdata;
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struct poller_pa *data = api->userdata;
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self->fd = poller_fd_make (data->poller, fd_);
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self->fd.user_data = self;
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self->fd.dispatcher = poller_pa_io_dispatcher;
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// FIXME: under x2go PA tries to register twice for the same FD,
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// which fails with our curent poller implementation;
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// we could maintain a list of { poller_fd, listeners } structures;
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// or maybe we're doing something wrong, which is yet to be determined
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poller_pa_io_enable (self, events);
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LIST_PREPEND (data->io_list, self);
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return self;
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}
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static void
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poller_pa_io_free (pa_io_event *self)
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{
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if (self->free)
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self->free (self->api, self, self->user_data);
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struct poller_pa *data = self->api->userdata;
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poller_fd_reset (&self->fd);
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LIST_UNLINK (data->io_list, self);
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free (self);
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}
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static void
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poller_pa_io_set_destroy (pa_io_event *self, pa_io_event_destroy_cb_t cb)
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{
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self->free = cb;
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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static void
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poller_pa_time_dispatcher (void *user_data)
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{
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pa_time_event *self = user_data;
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// XXX: the meaning of the time argument is undocumented,
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// so let's just put current Unix time in there
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struct timeval now = poller_pa_get_current_time ();
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self->dispatch (self->api, self, &now, self->user_data);
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}
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static void
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poller_pa_time_restart (pa_time_event *self, const struct timeval *tv)
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{
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struct poller_timer *timer = &self->timer;
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if (tv)
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{
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struct timeval now = poller_pa_get_current_time ();
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poller_timer_set (timer,
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(tv->tv_sec - now.tv_sec) * 1000 +
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(tv->tv_usec - now.tv_usec) / 1000);
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}
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else
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poller_timer_reset (timer);
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}
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static pa_time_event *
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poller_pa_time_new (pa_mainloop_api *api, const struct timeval *tv,
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pa_time_event_cb_t cb, void *userdata)
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{
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pa_time_event *self = xcalloc (1, sizeof *self);
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self->api = api;
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self->dispatch = cb;
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self->user_data = userdata;
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struct poller_pa *data = api->userdata;
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self->timer = poller_timer_make (data->poller);
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self->timer.user_data = self;
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self->timer.dispatcher = poller_pa_time_dispatcher;
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poller_pa_time_restart (self, tv);
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LIST_PREPEND (data->time_list, self);
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return self;
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}
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static void
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poller_pa_time_free (pa_time_event *self)
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{
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if (self->free)
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self->free (self->api, self, self->user_data);
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struct poller_pa *data = self->api->userdata;
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poller_timer_reset (&self->timer);
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LIST_UNLINK (data->time_list, self);
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free (self);
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}
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static void
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poller_pa_time_set_destroy (pa_time_event *self, pa_time_event_destroy_cb_t cb)
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{
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self->free = cb;
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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static void
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poller_pa_defer_dispatcher (void *user_data)
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{
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pa_defer_event *self = user_data;
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self->dispatch (self->api, self, self->user_data);
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}
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static pa_defer_event *
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poller_pa_defer_new (pa_mainloop_api *api,
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pa_defer_event_cb_t cb, void *userdata)
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{
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pa_defer_event *self = xcalloc (1, sizeof *self);
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self->api = api;
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self->dispatch = cb;
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self->user_data = userdata;
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struct poller_pa *data = api->userdata;
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self->idle = poller_idle_make (data->poller);
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self->idle.user_data = self;
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self->idle.dispatcher = poller_pa_defer_dispatcher;
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poller_idle_set (&self->idle);
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LIST_PREPEND (data->defer_list, self);
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return self;
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}
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static void
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poller_pa_defer_enable (pa_defer_event *self, int enable)
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{
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struct poller_idle *idle = &self->idle;
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if (enable)
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poller_idle_set (idle);
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else
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poller_idle_reset (idle);
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}
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static void
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poller_pa_defer_free (pa_defer_event *self)
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{
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if (self->free)
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self->free (self->api, self, self->user_data);
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struct poller_pa *data = self->api->userdata;
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poller_idle_reset (&self->idle);
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LIST_UNLINK (data->defer_list, self);
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free (self);
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}
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static void
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poller_pa_defer_set_destroy (pa_defer_event *self,
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pa_defer_event_destroy_cb_t cb)
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{
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self->free = cb;
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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static void
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poller_pa_quit (pa_mainloop_api *api, int retval)
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{
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(void) api;
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(void) retval;
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// This is not called from within libpulse
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hard_assert (!"quitting the libpulse event loop is unimplemented");
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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static struct pa_mainloop_api g_poller_pa_template =
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{
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.io_new = poller_pa_io_new,
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.io_enable = poller_pa_io_enable,
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.io_free = poller_pa_io_free,
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.io_set_destroy = poller_pa_io_set_destroy,
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.time_new = poller_pa_time_new,
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.time_restart = poller_pa_time_restart,
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.time_free = poller_pa_time_free,
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.time_set_destroy = poller_pa_time_set_destroy,
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.defer_new = poller_pa_defer_new,
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.defer_enable = poller_pa_defer_enable,
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.defer_free = poller_pa_defer_free,
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.defer_set_destroy = poller_pa_defer_set_destroy,
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.quit = poller_pa_quit,
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};
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static struct pa_mainloop_api *
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poller_pa_new (struct poller *self)
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{
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struct poller_pa *data = xcalloc (1, sizeof *data);
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data->poller = self;
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struct pa_mainloop_api *api = xmalloc (sizeof *api);
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*api = g_poller_pa_template;
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api->userdata = data;
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return api;
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}
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static void
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poller_pa_destroy (struct pa_mainloop_api *api)
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{
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struct poller_pa *data = api->userdata;
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LIST_FOR_EACH (pa_io_event, iter, data->io_list)
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poller_pa_io_free (iter);
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LIST_FOR_EACH (pa_time_event, iter, data->time_list)
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poller_pa_time_free (iter);
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LIST_FOR_EACH (pa_defer_event, iter, data->defer_list)
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poller_pa_defer_free (iter);
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free (data);
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free (api);
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}
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127
tests/pulse.c
Normal file
127
tests/pulse.c
Normal file
@ -0,0 +1,127 @@
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/*
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* tests/pulse.c
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*
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* Copyright (c) 2021, Přemysl Eric Janouch <p@janouch.name>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
|
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* purpose with or without fee is hereby granted.
|
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*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
|
||||
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
|
||||
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
||||
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
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*
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*/
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#define PROGRAM_NAME "test"
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#define PROGRAM_VERSION "0"
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#define LIBERTY_WANT_POLLER
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#include "../liberty.c"
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#include "../liberty-pulse.c"
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// --- Tests -------------------------------------------------------------------
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enum
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{
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EVENT_IO = 1 << 0,
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EVENT_TIME = 1 << 1,
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EVENT_DEFER = 1 << 2,
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EVENT_ALL = (1 << 3) - 1
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};
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static intptr_t g_events = 0;
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static intptr_t g_destroys = 0;
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static void
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io_event_cb (pa_mainloop_api *a,
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pa_io_event *e, int fd, pa_io_event_flags_t events, void *userdata)
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{
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(void) a; (void) e; (void) fd; (void) events;
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g_events |= (intptr_t) userdata;
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}
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static void
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io_event_destroy_cb (pa_mainloop_api *a, pa_io_event *e, void *userdata)
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{
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(void) a; (void) e;
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g_destroys += (intptr_t) userdata;
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}
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static void
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time_event_cb (pa_mainloop_api *a,
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pa_time_event *e, const struct timeval *tv, void *userdata)
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{
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(void) a; (void) e; (void) tv;
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g_events |= (intptr_t) userdata;
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}
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static void
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time_event_destroy_cb (pa_mainloop_api *a, pa_time_event *e, void *userdata)
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{
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(void) a; (void) e;
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g_destroys += (intptr_t) userdata;
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}
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static void
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defer_event_cb (pa_mainloop_api *a, pa_defer_event *e, void *userdata)
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{
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(void) a; (void) e;
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g_events |= (intptr_t) userdata;
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}
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static void
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defer_event_destroy_cb (pa_mainloop_api *a, pa_defer_event *e, void *userdata)
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{
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(void) a; (void) e;
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g_destroys += (intptr_t) userdata;
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}
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static void
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test_pulse (void)
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{
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struct poller poller;
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poller_init (&poller);
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// Let's just get this over with, not aiming for high test coverage here
|
||||
pa_mainloop_api *api = poller_pa_new (&poller);
|
||||
|
||||
pa_io_event *ie = api->io_new (api, STDOUT_FILENO, PA_IO_EVENT_OUTPUT,
|
||||
io_event_cb, (void *) EVENT_IO);
|
||||
api->io_set_destroy (ie, io_event_destroy_cb);
|
||||
|
||||
const struct timeval tv = poller_pa_get_current_time ();
|
||||
pa_time_event *te = api->time_new (api, &tv,
|
||||
time_event_cb, (void *) EVENT_TIME);
|
||||
api->time_set_destroy (te, time_event_destroy_cb);
|
||||
api->time_restart (te, &tv);
|
||||
|
||||
pa_defer_event *de = api->defer_new (api,
|
||||
defer_event_cb, (void *) EVENT_DEFER);
|
||||
api->defer_set_destroy (de, defer_event_destroy_cb);
|
||||
api->defer_enable (api->defer_new (api,
|
||||
defer_event_cb, (void *) EVENT_DEFER), false);
|
||||
|
||||
alarm (1);
|
||||
while (g_events != EVENT_ALL)
|
||||
poller_run (&poller);
|
||||
|
||||
poller_pa_destroy (api);
|
||||
soft_assert (g_destroys == EVENT_ALL);
|
||||
poller_free (&poller);
|
||||
}
|
||||
|
||||
// --- Main --------------------------------------------------------------------
|
||||
|
||||
int
|
||||
main (int argc, char *argv[])
|
||||
{
|
||||
struct test test;
|
||||
test_init (&test, argc, argv);
|
||||
test_add_simple (&test, "/pulse", NULL, test_pulse);
|
||||
return test_run (&test);
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user