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add new API function pa_timeval_add()

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/glitch-free@2240 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2008-04-11 16:28:49 +00:00
parent 566322ad30
commit 919bd98dff
2 changed files with 23 additions and 1 deletions
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18
src/pulse/timeval.c
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@ -148,6 +148,24 @@ struct timeval* pa_timeval_add(struct timeval *tv, pa_usec_t v) {
return tv;
}
struct timeval* pa_timeval_sub(struct timeval *tv, pa_usec_t v) {
unsigned long secs;
pa_assert(tv);
secs = (unsigned long) (v/PA_USEC_PER_SEC);
tv->tv_sec -= secs;
v -= ((pa_usec_t) secs) * PA_USEC_PER_SEC;
if (tv->tv_usec >= (suseconds_t) v)
tv->tv_usec -= (suseconds_t) v;
else {
tv->tv_sec --;
tv->tv_usec = tv->tv_usec + PA_USEC_PER_SEC - v;
}
return tv;
}
struct timeval* pa_timeval_store(struct timeval *tv, pa_usec_t v) {
pa_assert(tv);

6
src/pulse/timeval.h
View file

@ -26,6 +26,7 @@
***/
#include <pulse/cdecl.h>
#include <pulse/gccmacro.h>
#include <pulse/sample.h>
/** \file
@ -54,7 +55,10 @@ int pa_timeval_cmp(const struct timeval *a, const struct timeval *b) PA_GCC_PURE
pa_usec_t pa_timeval_age(const struct timeval *tv);
/** Add the specified time inmicroseconds to the specified timeval structure */
struct timeval* pa_timeval_add(struct timeval *tv, pa_usec_t v) PA_GCC_PURE;
struct timeval* pa_timeval_add(struct timeval *tv, pa_usec_t v);
/** Subtract the specified time inmicroseconds to the specified timeval structure. \since 0.9.11 */
struct timeval* pa_timeval_sub(struct timeval *tv, pa_usec_t v);
/** Store the specified uec value in the timeval struct. \since 0.9.7 */
struct timeval* pa_timeval_store(struct timeval *tv, pa_usec_t v);