1 files changed, 74 insertions, 0 deletions
diff --git a/src/lib/sleep.c b/src/lib/sleep.c
new file mode 100644
index 0000000..7b3b6fa
--- /dev/null
+++ b/src/lib/sleep.c
@@ -0,0 +1,74 @@
+/* Copyright (c) 2018 Dovecot authors, see the included COPYING file */
+
+#include "lib.h"
+#include "sleep.h"
+
+#include <time.h>
+
+static bool ATTR_NOWARN_UNUSED_RESULT
+sleep_timespec(const struct timespec *ts_sleep, bool interruptible)
+{
+	struct timespec ts_remain = *ts_sleep;
+
+	while (nanosleep(&ts_remain, &ts_remain) < 0) {
+		if (errno != EINTR)
+			i_fatal("nanosleep(): %m");
+		if (interruptible)
+			return FALSE;
+	}
+	return TRUE;
+}
+
+void i_sleep_usecs(unsigned long long usecs)
+{
+	struct timespec ts_sleep;
+
+	ts_sleep.tv_sec = (time_t)(usecs / 1000000);
+	ts_sleep.tv_nsec = (long)(usecs % 1000000) * 1000;
+	sleep_timespec(&ts_sleep, FALSE);
+}
+
+void i_sleep_msecs(unsigned int msecs)
+{
+	struct timespec ts_sleep;
+
+	ts_sleep.tv_sec = (time_t)(msecs / 1000);
+	ts_sleep.tv_nsec = (long)(msecs % 1000) * 1000000;
+	sleep_timespec(&ts_sleep, FALSE);
+}
+
+void i_sleep_secs(time_t secs)
+{
+	struct timespec ts_sleep;
+
+	ts_sleep.tv_sec = secs;
+	ts_sleep.tv_nsec = 0;
+	sleep_timespec(&ts_sleep, FALSE);
+}
+
+bool i_sleep_intr_usecs(unsigned long long usecs)
+{
+	struct timespec ts_sleep;
+
+	ts_sleep.tv_sec = (time_t)(usecs / 1000000);
+	ts_sleep.tv_nsec = (long)(usecs % 1000000) * 1000;
+	return sleep_timespec(&ts_sleep, TRUE);
+}
+
+bool i_sleep_intr_msecs(unsigned int msecs)
+{
+	struct timespec ts_sleep;
+
+	ts_sleep.tv_sec = (time_t)(msecs / 1000);
+	ts_sleep.tv_nsec = (long)(msecs % 1000) * 1000000;
+	return sleep_timespec(&ts_sleep, TRUE);
+}
+
+bool i_sleep_intr_secs(time_t secs)
+{
+	struct timespec ts_sleep;
+
+	ts_sleep.tv_sec = secs;
+	ts_sleep.tv_nsec = 0;
+	return sleep_timespec(&ts_sleep, TRUE);
+}