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add new API to replace the poll() function used by the main loop implementation

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@733 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2006-04-16 16:46:26 +00:00
parent a8bb073acc
commit 76296ca8ad
2 changed files with 26 additions and 1 deletions
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19
src/polyp/mainloop.c
View file

@ -101,6 +101,9 @@ struct pa_mainloop {
STATE_POLLED, STATE_POLLED,
STATE_QUIT STATE_QUIT
} state; } state;
pa_poll_func poll_func;
void *poll_func_userdata;
}; };
/* IO events */ /* IO events */
@ -355,6 +358,9 @@ pa_mainloop *pa_mainloop_new(void) {
m->deferred_pending = 0; m->deferred_pending = 0;
m->state = STATE_PASSIVE; m->state = STATE_PASSIVE;
m->poll_func = NULL;
m->poll_func_userdata = NULL;
return m; return m;
} }
@ -665,7 +671,10 @@ int pa_mainloop_poll(pa_mainloop *m) {
if (m->deferred_pending) if (m->deferred_pending)
r = 0; r = 0;
else { else {
r = poll(m->pollfds, m->n_pollfds, m->prepared_timeout); if (m->poll_func)
r = m->poll_func(m->pollfds, m->n_pollfds, m->prepared_timeout, m->poll_func_userdata);
else
r = poll(m->pollfds, m->n_pollfds, m->prepared_timeout);
if (r < 0) { if (r < 0) {
if (errno == EINTR) if (errno == EINTR)
@ -767,6 +776,14 @@ pa_mainloop_api* pa_mainloop_get_api(pa_mainloop*m) {
return &m->api; return &m->api;
} }
void pa_mainloop_set_poll_func(pa_mainloop *m, pa_poll_func poll_func, void *userdata) {
assert(m);
m->poll_func = poll_func;
m->poll_func_userdata = userdata;
}
#if 0 #if 0
void pa_mainloop_dump(pa_mainloop *m) { void pa_mainloop_dump(pa_mainloop *m) {
assert(m); assert(m);

8
src/polyp/mainloop.h
View file

@ -70,6 +70,8 @@ PA_C_DECL_BEGIN
* defined in \ref mainloop-api.h. This implementation is thread safe * 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.*/ * as long as you access the main loop object from a single thread only.*/
#include <sys/poll.h>
/** An opaque main loop object */ /** An opaque main loop object */
typedef struct pa_mainloop pa_mainloop; typedef struct pa_mainloop pa_mainloop;
@ -114,6 +116,12 @@ void pa_mainloop_quit(pa_mainloop *m, int r);
/** Interrupt a running poll (for threaded systems) */ /** Interrupt a running poll (for threaded systems) */
void pa_mainloop_wakeup(pa_mainloop *m); void pa_mainloop_wakeup(pa_mainloop *m);
/** Generic prototype of a poll() like function */
typedef int (*pa_poll_func)(struct pollfd *ufds, nfds_t nfds, int timeout, void*userdata);
/** Change the poll() implementation */
void pa_mainloop_set_poll_func(pa_mainloop *m, pa_poll_func poll_func, void *userdata);
PA_C_DECL_END PA_C_DECL_END
#endif #endif