timeval.h

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00001 #ifndef footimevalhfoo
00002 #define footimevalhfoo
00003 
00004 /* $Id: timeval.h 1971 2007-10-28 19:13:50Z lennart $ */
00005 
00006 /***
00007   This file is part of PulseAudio.
00008 
00009   Copyright 2004-2006 Lennart Poettering
00010   Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
00011 
00012   PulseAudio is free software; you can redistribute it and/or modify
00013   it under the terms of the GNU Lesser General Public License as
00014   published by the Free Software Foundation; either version 2.1 of the
00015   License, or (at your option) any later version.
00016 
00017   PulseAudio is distributed in the hope that it will be useful, but
00018   WITHOUT ANY WARRANTY; without even the implied warranty of
00019   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
00020   Lesser General Public License for more details.
00021 
00022   You should have received a copy of the GNU Lesser General Public
00023   License along with PulseAudio; if not, write to the Free Software
00024   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00025   USA.
00026 ***/
00027 
00028 #include <pulse/cdecl.h>
00029 #include <pulse/sample.h>
00030 
00034 PA_C_DECL_BEGIN
00035 
00036 #define PA_MSEC_PER_SEC 1000
00037 #define PA_USEC_PER_SEC 1000000
00038 #define PA_NSEC_PER_SEC 1000000000
00039 #define PA_USEC_PER_MSEC 1000
00040 
00041 struct timeval;
00042 
00044 struct timeval *pa_gettimeofday(struct timeval *tv);
00045 
00048 pa_usec_t pa_timeval_diff(const struct timeval *a, const struct timeval *b) PA_GCC_PURE;
00049 
00051 int pa_timeval_cmp(const struct timeval *a, const struct timeval *b) PA_GCC_PURE;
00052 
00054 pa_usec_t pa_timeval_age(const struct timeval *tv);
00055 
00057 struct timeval* pa_timeval_add(struct timeval *tv, pa_usec_t v) PA_GCC_PURE;
00058 
00060 struct timeval* pa_timeval_store(struct timeval *tv, pa_usec_t v);
00061 
00063 pa_usec_t pa_timeval_load(const struct timeval *tv);
00064 
00065 PA_C_DECL_END
00066 
00067 #endif

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