PulseAudio  16.0
subscribe.h
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1 #ifndef foosubscribehfoo
2 #define foosubscribehfoo
3 
4 /***
5  This file is part of PulseAudio.
6 
7  Copyright 2004-2006 Lennart Poettering
8  Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
9 
10  PulseAudio is free software; you can redistribute it and/or modify
11  it under the terms of the GNU Lesser General Public License as published
12  by the Free Software Foundation; either version 2.1 of the License,
13  or (at your option) any later version.
14 
15  PulseAudio is distributed in the hope that it will be useful, but
16  WITHOUT ANY WARRANTY; without even the implied warranty of
17  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18  General Public License for more details.
19 
20  You should have received a copy of the GNU Lesser General Public License
21  along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
22 ***/
23 
24 #include <inttypes.h>
25 
26 #include <pulse/def.h>
27 #include <pulse/context.h>
28 #include <pulse/cdecl.h>
29 #include <pulse/version.h>
30 
70 PA_C_DECL_BEGIN
71 
73 typedef void (*pa_context_subscribe_cb_t)(pa_context *c, pa_subscription_event_type_t t, uint32_t idx, void *userdata);
74 
76 pa_operation* pa_context_subscribe(pa_context *c, pa_subscription_mask_t m, pa_context_success_cb_t cb, void *userdata);
77 
79 void pa_context_set_subscribe_callback(pa_context *c, pa_context_subscribe_cb_t cb, void *userdata);
80 
81 PA_C_DECL_END
82 
83 #endif
context.h
Connection contexts for asynchronous communication with a server.
pa_context_success_cb_t
void(* pa_context_success_cb_t)(pa_context *c, int success, void *userdata)
A generic callback for operation completion.
Definition: context.h:160
pa_context
struct pa_context pa_context
An opaque connection context to a daemon.
Definition: context.h:154
def.h
Global definitions.
pa_subscription_event_type_t
enum pa_subscription_event_type pa_subscription_event_type_t
Subscription event types, as used by pa_context_subscribe()
pa_subscription_mask_t
enum pa_subscription_mask pa_subscription_mask_t
Subscription event mask, as used by pa_context_subscribe()
pa_operation
struct pa_operation pa_operation
An asynchronous operation object.
Definition: operation.h:33
pa_context_set_subscribe_callback
void pa_context_set_subscribe_callback(pa_context *c, pa_context_subscribe_cb_t cb, void *userdata)
Set the context specific call back function that is called whenever the state of the daemon changes.
pa_context_subscribe
pa_operation * pa_context_subscribe(pa_context *c, pa_subscription_mask_t m, pa_context_success_cb_t cb, void *userdata)
Enable event notification.
pa_context_subscribe_cb_t
void(* pa_context_subscribe_cb_t)(pa_context *c, pa_subscription_event_type_t t, uint32_t idx, void *userdata)
Subscription event callback prototype.
Definition: subscribe.h:73