1 #ifndef foooperationhfoo 2 #define foooperationhfoo 3 4 /*** 5 This file is part of PulseAudio. 6 7 Copyright 2004-2006 Lennart Poettering 8 9 PulseAudio is free software; you can redistribute it and/or modify 10 it under the terms of the GNU Lesser General Public License as published 11 by the Free Software Foundation; either version 2.1 of the License, 12 or (at your option) any later version. 13 14 PulseAudio is distributed in the hope that it will be useful, but 15 WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 17 General Public License for more details. 18 19 You should have received a copy of the GNU Lesser General Public License 20 along with PulseAudio; if not, write to the Free Software 21 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 22 USA. 23 ***/ 24 25 #include <pulse/cdecl.h> 26 #include <pulse/def.h> 27 #include <pulse/version.h> 28 29 /** \file 30 * Asynchronous operations */ 31 32 PA_C_DECL_BEGIN 33 34 /** An asynchronous operation object */ 35 typedef struct pa_operation pa_operation; 36 37 /** Increase the reference count by one */ 38 pa_operation *pa_operation_ref(pa_operation *o); 39 40 /** Decrease the reference count by one */ 41 void pa_operation_unref(pa_operation *o); 42 43 /** Cancel the operation. Beware! This will not necessarily cancel the 44 * execution of the operation on the server side. However it will make 45 * sure that the callback associated with this operation will not be 46 * called anymore, effectively disabling the operation from the client 47 * side's view. */ 48 void pa_operation_cancel(pa_operation *o); 49 50 /** Return the current status of the operation */ 51 pa_operation_state_t pa_operation_get_state(pa_operation *o); 52 53 PA_C_DECL_END 54 55 #endif 56