From e205b25d65ccb380fa158711e24d55b6de5d9bc1 Mon Sep 17 00:00:00 2001 From: Pierre Ossman Date: Thu, 16 Feb 2006 19:19:58 +0000 Subject: Reorganised the source tree. We now have src/ with a couple of subdirs: * daemon/ - Contains the files specific to the polypaudio daemon. * modules/ - All loadable modules. * polyp/ - Files that are part of the public, application interface or are only used in libpolyp. * polypcore/ - All other shared files. * tests/ - Test programs. * utils/ - Utility programs. git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@487 fefdeb5f-60dc-0310-8127-8f9354f1896f --- src/polyp/mainloop.h | 90 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 src/polyp/mainloop.h (limited to 'src/polyp/mainloop.h') diff --git a/src/polyp/mainloop.h b/src/polyp/mainloop.h new file mode 100644 index 00000000..691f8c50 --- /dev/null +++ b/src/polyp/mainloop.h @@ -0,0 +1,90 @@ +#ifndef foomainloophfoo +#define foomainloophfoo + +/* $Id$ */ + +/*** + This file is part of polypaudio. + + polypaudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + polypaudio 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 Lesser General Public License + along with polypaudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include +#include + +PA_C_DECL_BEGIN + +/** \file + * + * A minimal main loop implementation based on the C library's poll() + * function. Using the routines defined herein you may create a simple + * main loop supporting the generic main loop abstraction layer as + * defined in \ref mainloop-api.h. This implementation is thread safe + * as long as you access the main loop object from a single thread only.*/ + +/** \pa_mainloop + * An opaque main loop object + */ +typedef struct pa_mainloop pa_mainloop; + +/** Allocate a new main loop object */ +pa_mainloop *pa_mainloop_new(void); + +/** Free a main loop object */ +void pa_mainloop_free(pa_mainloop* m); + + +/** Prepare for a single iteration of the main loop. Returns a negative value +on error or exit request. timeout specifies a maximum timeout for the subsequent +poll, or -1 for blocking behaviour. Defer events are also dispatched when this +function is called. On success returns the number of source dispatched in this +iteration.*/ +int pa_mainloop_prepare(pa_mainloop *m, int timeout); +/** Execute the previously prepared poll. Returns a negative value on error.*/ +int pa_mainloop_poll(pa_mainloop *m); +/** Dispatch timeout and io events from the previously executed poll. Returns +a negative value on error. On success returns the number of source dispatched. */ +int pa_mainloop_dispatch(pa_mainloop *m); + +/** Return the return value as specified with the main loop's quit() routine. */ +int pa_mainloop_get_retval(pa_mainloop *m); + +/** Run a single iteration of the main loop. This is a convenience function +for pa_mainloop_prepare(), pa_mainloop_poll() and pa_mainloop_dispatch(). +Returns a negative value on error or exit request. If block is nonzero, +block for events if none are queued. Optionally return the return value as +specified with the main loop's quit() routine in the integer variable retval points +to. On success returns the number of source dispatched in this iteration. */ +int pa_mainloop_iterate(pa_mainloop *m, int block, int *retval); + +/** Run unlimited iterations of the main loop object until the main loop's quit() routine is called. */ +int pa_mainloop_run(pa_mainloop *m, int *retval); + +/** Return the abstract main loop abstraction layer vtable for this main loop. This calls pa_mainloop_iterate() iteratively.*/ +pa_mainloop_api* pa_mainloop_get_api(pa_mainloop*m); + +/** Return non-zero when there are any deferred events pending. \since 0.5 */ +int pa_mainloop_deferred_pending(pa_mainloop *m); + +/** Shutdown the main loop */ +void pa_mainloop_quit(pa_mainloop *m, int r); + +/** Interrupt a running poll (for threaded systems) */ +void pa_mainloop_wakeup(pa_mainloop *m); + +PA_C_DECL_END + +#endif -- cgit