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Diffstat (limited to 'components/uptime.c')
-rw-r--r--components/uptime.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/components/uptime.c b/components/uptime.c
index 978f88f..7c23c98 100644
--- a/components/uptime.c
+++ b/components/uptime.c
@@ -5,14 +5,24 @@
#include "../util.h"
+#if defined(CLOCK_BOOTTIME)
+ #define UPTIME_FLAG CLOCK_BOOTTIME
+#elif defined(CLOCK_UPTIME)
+ #define UPTIME_FLAG CLOCK_UPTIME
+#else
+ #define UPTIME_FLAG CLOCK_MONOTONIC
+#endif
+
const char *
uptime(void)
{
+ char warn_buf[256];
uintmax_t h, m;
struct timespec uptime;
- if (clock_gettime(CLOCK_BOOTTIME, &uptime) < 0) {
- warn("clock_gettime 'CLOCK_BOOTTIME'");
+ if (clock_gettime(UPTIME_FLAG, &uptime) < 0) {
+ snprintf(warn_buf, 256, "clock_gettime %d", UPTIME_FLAG);
+ warn(warn_buf);
return NULL;
}