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authorLennart Poettering <lennart@poettering.net>2008-05-15 23:34:41 +0000
committerLennart Poettering <lennart@poettering.net>2008-05-15 23:34:41 +0000
commit045c1d602dcba57868845ba3270510593c39480f (patch)
treeb3d61f180e6fa40f97a80aa3e46d7c910ed7c2a6 /src/pulse/timeval.c
parent91f092eadcc5e9075e04ae42df11de28ef5047a8 (diff)
merge glitch-free branch back into trunk
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@2445 fefdeb5f-60dc-0310-8127-8f9354f1896f
Diffstat (limited to 'src/pulse/timeval.c')
-rw-r--r--src/pulse/timeval.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/src/pulse/timeval.c b/src/pulse/timeval.c
index 70ceb71e..180e0159 100644
--- a/src/pulse/timeval.c
+++ b/src/pulse/timeval.c
@@ -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);