Add TIM_mono() and TIM_real() which return double representations of

timestamps on a monotonic and the UTC timescales respectively.

Doubles are much more convenient than timespecs for comparisons etc.



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@1668 d4fa192b-c00b-0410-8231-f00ffab90ce4

include/libvarnish.h

@@ -47,6 +47,8 @@ uint32_t crc32_l(const void *p1, unsigned l);
 /* from libvarnish/time.c */
 void TIM_format(time_t t, char *p);
 time_t TIM_parse(const char *p);
+double TIM_mono(void);
+double TIM_real(void);
 
 /* from libvarnish/version.c */
 void varnish_version(const char *);

lib/libvarnish/time.c

@@ -50,8 +50,30 @@
 #include <string.h>
 #include <time.h>
 
+#ifndef HAVE_CLOCK_GETTIME
+#include "compat/clock_gettime.h"
+#endif
+
 #include "libvarnish.h"
 
+double
+TIM_mono(void)
+{
+	struct timespec ts;
+
+	assert(clock_gettime(CLOCK_MONOTONIC, &ts) == 0);
+	return (ts.tv_sec + 1e-9 * ts.tv_nsec);
+}
+
+double
+TIM_real(void)
+{
+	struct timespec ts;
+
+	assert(clock_gettime(CLOCK_REALTIME, &ts) == 0);
+	return (ts.tv_sec + 1e-9 * ts.tv_nsec);
+}
+
 void
 TIM_format(time_t t, char *p)
 {