1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
#ifndef foomainloopapihfoo
#define foomainloopapihfoo
/* $Id$ */
/***
This file is part of polypaudio.
polypaudio is free software; you can redistribute it and/or modify
it under the terms of the GNU 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 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 <sys/time.h>
#include <time.h>
#include "cdecl.h"
PA_C_DECL_BEGIN
/** A bitmask for IO events */
enum pa_io_event_flags {
PA_IO_EVENT_NULL = 0, /**< No event */
PA_IO_EVENT_INPUT = 1, /**< Input event */
PA_IO_EVENT_OUTPUT = 2, /**< Output event */
PA_IO_EVENT_HANGUP = 4, /**< Hangup event */
PA_IO_EVENT_ERROR = 8, /**< Error event */
};
/** \struct pa_io_event
* An IO event source object */
struct pa_io_event;
/** \struct pa_defer_event
* A deferred event source object. Events of this type are triggered once in every main loop iteration */
struct pa_defer_event;
/** \struct pa_time_event
* A timer event source object */
struct pa_time_event;
/** An abstract mainloop API vtable */
struct pa_mainloop_api {
/** A pointer to some private, arbitrary data of the main loop implementation */
void *userdata;
/* IO sources */
struct pa_io_event* (*io_new)(struct pa_mainloop_api*a, int fd, enum pa_io_event_flags events, void (*callback) (struct pa_mainloop_api*a, struct pa_io_event* e, int fd, enum pa_io_event_flags events, void *userdata), void *userdata);
void (*io_enable)(struct pa_io_event* e, enum pa_io_event_flags events);
void (*io_free)(struct pa_io_event* e);
void (*io_set_destroy)(struct pa_io_event *e, void (*callback) (struct pa_mainloop_api*a, struct pa_io_event *e, void *userdata));
/* Time sources */
struct pa_time_event* (*time_new)(struct pa_mainloop_api*a, const struct timeval *tv, void (*callback) (struct pa_mainloop_api*a, struct pa_time_event* e, const struct timeval *tv, void *userdata), void *userdata);
void (*time_restart)(struct pa_time_event* e, const struct timeval *tv);
void (*time_free)(struct pa_time_event* e);
void (*time_set_destroy)(struct pa_time_event *e, void (*callback) (struct pa_mainloop_api*a, struct pa_time_event *e, void *userdata));
/** Create a new deferred event source object */
struct pa_defer_event* (*defer_new)(struct pa_mainloop_api*a, void (*callback) (struct pa_mainloop_api*a, struct pa_defer_event* e, void *userdata), void *userdata);
/** Enable or disable a deferred event source temporarily */
void (*defer_enable)(struct pa_defer_event* e, int b);
/** Free a deferred event source object */
void (*defer_free)(struct pa_defer_event* e);
/** Set a function that is called when the deferred event source is destroyed. Use this to free the userdata argument if required */
void (*defer_set_destroy)(struct pa_defer_event *e, void (*callback) (struct pa_mainloop_api*a, struct pa_defer_event *e, void *userdata));
/** Exit the main loop and return the specfied retval*/
void (*quit)(struct pa_mainloop_api*a, int retval);
};
/** Run the specified callback function once from the main loop using an anonymous defer event. */
void pa_mainloop_api_once(struct pa_mainloop_api*m, void (*callback)(struct pa_mainloop_api*m, void *userdata), void *userdata);
PA_C_DECL_END
#endif
|
