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authorLennart Weller <lhw@ring0.de>2017-01-24 15:21:09 +0000
committerLennart Weller <lhw@ring0.de>2017-01-24 15:21:09 +0000
commit3ed3b02ed96ddab1c084811f3579b3a2aec83e04 (patch)
tree7a61ab288ae47800c4f11be5677d6ad8288dcd98 /src/proc_uptime.c
parentNew upstream version 1.4.0+dfsg (diff)
downloadnetdata-3ed3b02ed96ddab1c084811f3579b3a2aec83e04.tar.xz
netdata-3ed3b02ed96ddab1c084811f3579b3a2aec83e04.zip
New upstream version 1.5.0+dfsgupstream/1.5.0+dfsg
Diffstat (limited to 'src/proc_uptime.c')
-rw-r--r--src/proc_uptime.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/src/proc_uptime.c b/src/proc_uptime.c
new file mode 100644
index 000000000..9f341a33f
--- /dev/null
+++ b/src/proc_uptime.c
@@ -0,0 +1,54 @@
+#include "common.h"
+
+int do_proc_uptime(int update_every, usec_t dt) {
+ (void)dt;
+
+ static RRDSET *st = NULL;
+ collected_number uptime = 0;
+
+#ifdef CLOCK_BOOTTIME_IS_AVAILABLE
+ uptime = now_boottime_usec() / 1000;
+#else
+ static procfile *ff = NULL;
+
+ if(unlikely(!ff)) {
+ char filename[FILENAME_MAX + 1];
+ snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/proc/uptime");
+
+ ff = procfile_open(config_get("plugin:proc:/proc/uptime", "filename to monitor", filename), " \t", PROCFILE_FLAG_DEFAULT);
+ if(unlikely(!ff))
+ return 1;
+ }
+
+ ff = procfile_readall(ff);
+ if(unlikely(!ff))
+ return 0; // we return 0, so that we will retry to open it next time
+
+ if(unlikely(procfile_lines(ff) < 1)) {
+ error("/proc/uptime has no lines.");
+ return 1;
+ }
+ if(unlikely(procfile_linewords(ff, 0) < 1)) {
+ error("/proc/uptime has less than 1 word in it.");
+ return 1;
+ }
+
+ uptime = (collected_number)(strtold(procfile_lineword(ff, 0, 0), NULL) * 1000.0);
+#endif
+
+ // --------------------------------------------------------------------
+
+ if(unlikely(!st))
+ st = rrdset_find("system.uptime");
+
+ if(unlikely(!st)) {
+ st = rrdset_create("system", "uptime", NULL, "uptime", NULL, "System Uptime", "seconds", 1000, update_every, RRDSET_TYPE_LINE);
+ rrddim_add(st, "uptime", NULL, 1, 1000, RRDDIM_ABSOLUTE);
+ }
+ else rrdset_next(st);
+
+ rrddim_set(st, "uptime", uptime);
+ rrdset_done(st);
+
+ return 0;
+}