summaryrefslogtreecommitdiff
path: root/src/libstddjb/tain_clockmon.c
diff options
context:
space:
mode:
authorLaurent Bercot <ska-skaware@skarnet.org>2014-09-18 18:55:44 +0000
committerLaurent Bercot <ska-skaware@skarnet.org>2014-09-18 18:55:44 +0000
commit3534b428629be185e096be99e3bd5fdfe32d5544 (patch)
tree210ef3198ed66bc7f7b7bf6a85e4579f455e5a36 /src/libstddjb/tain_clockmon.c
downloadskalibs-3534b428629be185e096be99e3bd5fdfe32d5544.tar.xz
initial commit with rc for skalibs-2.0.0.0
Diffstat (limited to 'src/libstddjb/tain_clockmon.c')
-rw-r--r--src/libstddjb/tain_clockmon.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/src/libstddjb/tain_clockmon.c b/src/libstddjb/tain_clockmon.c
new file mode 100644
index 0000000..f14cd31
--- /dev/null
+++ b/src/libstddjb/tain_clockmon.c
@@ -0,0 +1,47 @@
+/* ISC license. */
+
+#include <skalibs/sysdeps.h>
+#include <skalibs/tai.h>
+
+#ifdef SKALIBS_HASCLOCKMON
+
+#include <time.h>
+
+int tain_clockmon_init (tain_t *offset)
+{
+ tain_t a, b ;
+ struct timespec ts ;
+ if (!tain_sysclock(&a)) return 0 ;
+ if (clock_gettime(CLOCK_MONOTONIC, &ts) < 0) return 0 ;
+ if (!tain_from_timespec(&b, &ts)) return 0 ;
+ tain_add(&a, &a, &tain_nano500) ;
+ tain_sub(offset, &a, &b) ;
+ return 1 ;
+}
+
+int tain_clockmon (tain_t *a, tain_t const *offset)
+{
+ struct timespec ts ;
+ if (clock_gettime(CLOCK_MONOTONIC, &ts) < 0) return 0 ;
+ if (!tain_from_timespec(a, &ts)) return 0 ;
+ tain_add(a, a, offset) ;
+ return 1 ;
+}
+
+#else
+
+#include <errno.h>
+
+int tain_clockmon_init (tain_t *offset)
+{
+ (void)offset ;
+ return (errno = ENOSYS, 0) ;
+}
+
+int tain_clockmon (tain_t *a, tain_t const *offset)
+{
+ (void)a ; (void)offset ;
+ return (errno = ENOSYS, 0) ;
+}
+
+#endif