summaryrefslogtreecommitdiff
path: root/libavutil/time.c
diff options
context:
space:
mode:
authorMans Rullgard <mans@mansr.com>2012-06-21 17:00:25 +0100
committerMans Rullgard <mans@mansr.com>2012-06-22 17:15:18 +0100
commitd3d3a32c9d389cc0d6a91b389988a225ae01c948 (patch)
tree5115c574ba6da03bca2679cbdc073437de5dfc24 /libavutil/time.c
parentf6b4624fcf9a8f4966b495b9c769ff0796839d57 (diff)
downloadffmpeg-d3d3a32c9d389cc0d6a91b389988a225ae01c948.tar.gz
lavu: add av_usleep() function
This function implements a delay using the first available of the following functions: - nanosleep() - usleep() - Sleep() (Windows) The conditional #includes in time.c are simplified by including unistd.h and windows.h whenever they are available rather than having these lines triggered by specific functions. Signed-off-by: Mans Rullgard <mans@mansr.com>
Diffstat (limited to 'libavutil/time.c')
-rw-r--r--libavutil/time.c24
1 files changed, 23 insertions, 1 deletions
diff --git a/libavutil/time.c b/libavutil/time.c
index 80c4029d9b..51779c5d17 100644
--- a/libavutil/time.c
+++ b/libavutil/time.c
@@ -20,13 +20,19 @@
#include <stddef.h>
#include <stdint.h>
+#include <time.h>
#if HAVE_GETTIMEOFDAY
#include <sys/time.h>
-#elif HAVE_GETSYSTEMTIMEASFILETIME
+#endif
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#if HAVE_WINDOWS_H
#include <windows.h>
#endif
#include "libavutil/time.h"
+#include "error.h"
int64_t av_gettime(void)
{
@@ -44,3 +50,19 @@ int64_t av_gettime(void)
return -1;
#endif
}
+
+int av_usleep(unsigned usec)
+{
+#if HAVE_NANOSLEEP
+ struct timespec ts = { usec / 1000000, usec % 1000000 * 1000 };
+ while (nanosleep(&ts, &ts) < 0 && errno == EINTR);
+ return 0;
+#elif HAVE_USLEEP
+ return usleep(usec);
+#elif HAVE_SLEEP
+ Sleep(usec / 1000);
+ return 0;
+#else
+ return AVERROR(ENOSYS);
+#endif
+}