[CRIU] [PATCH CRIU 4/7] log-dirty: add microsecond sleep

[Pavel Tikhomirov]

need this to be able to make pauses between iterations

Signed-off-by: Pavel Tikhomirov <ptikhomirov at virtuozzo.com>
---
 criu/dirty-logger.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/criu/dirty-logger.c b/criu/dirty-logger.c
index 5e8baa5..b17b2c2 100644
--- a/criu/dirty-logger.c
+++ b/criu/dirty-logger.c
@@ -4,6 +4,22 @@
 
 #include "imgset.h"
 
+#define NSEC_PER_USEC	1000L
+#define USEC_PER_SEC	1000000L
+
+static int sleep_us(long us) {
+	struct timespec ts, rts;
+	ts.tv_sec = us / USEC_PER_SEC;
+	ts.tv_nsec = NSEC_PER_USEC * (us % USEC_PER_SEC);
+	while (nanosleep(&ts, &rts)) {
+		if (errno != EINTR)
+			return -1;
+		ts = rts;
+	}
+
+	return 0;
+}
+
 #define CR_DIRTY_LOG "dirty-log.img"
 
 void *dirty_logger_pthread(void *arg)
-- 
1.9.3