[PATCH v2 2/4] virprocess: implement virProcessGetStatInfo() for FreeBSD
Use the "kern.proc.pid" sysctl and retrieve information from the
kinfo_proc struct.
Signed-off-by: Roman Bogorodskiy <bogorodskiy(a)gmail.com>
---
src/util/virprocess.c | 104 +++++++++++++++++++++++++++++++-----------
1 file changed, 78 insertions(+), 26 deletions(-)
diff --git a/src/util/virprocess.c b/src/util/virprocess.c
index 05db76d834..3889ba90f9 100644
--- a/src/util/virprocess.c
+++ b/src/util/virprocess.c
@@ -1812,7 +1812,85 @@ virProcessGetStatInfo(unsigned long long *cpuTime,
return 0;
}
+#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+int
+virProcessGetStatInfo(unsigned long long *cpuTime,
+ unsigned long long *userTime,
+ unsigned long long *sysTime,
+ int *lastCpu,
+ unsigned long long *vm_rss,
+ pid_t pid,
+ pid_t tid)
+{
+ struct kinfo_proc p;
+ int mib[4];
+ size_t len = 4;
+ unsigned long long utime = 0;
+ unsigned long long stime = 0;
+ unsigned long long rss = 0;
+ int cpu = 0;
+ const long pagesize = virGetSystemPageSizeKB();
+
+ sysctlnametomib("kern.proc.pid", mib, &len);
+
+ len = sizeof(struct kinfo_proc);
+ mib[3] = pid;
+
+ if (sysctl(mib, 4, &p, &len, NULL, 0) < 0) {
+ virReportSystemError(errno, "%s",
+ _("Unable to query process stats"));
+ return -1;
+ }
+
+ utime = p.ki_rusage.ru_utime.tv_sec;
+ stime = p.ki_rusage.ru_stime.tv_sec;
+ rss = p.ki_rssize * pagesize;
+ cpu = p.ki_lastcpu_old;
+
+ if (cpuTime)
+ *cpuTime = utime + stime;
+ if (userTime)
+ *userTime = utime;
+ if (sysTime)
+ *sysTime = stime;
+ if (lastCpu)
+ *lastCpu = cpu;
+ if (vm_rss)
+ *vm_rss = rss;
+
+ VIR_DEBUG("Got status for %d/%d user=%llu sys=%llu cpu=%d rss=%lld",
+ (int) pid, tid, utime, stime, cpu, rss);
+
+ return 0;
+}
+#else
+int
+virProcessGetStatInfo(unsigned long long *cpuTime,
+ unsigned long long *userTime,
+ unsigned long long *sysTime,
+ int *lastCpu,
+ unsigned long long *vm_rss,
+ pid_t pid G_GNUC_UNUSED,
+ pid_t tid G_GNUC_UNUSED)
+{
+ /* We don't have a way to collect this information on non-Linux
+ * platforms, so just report neutral values */
+ if (cpuTime)
+ *cpuTime = 0;
+ if (userTime)
+ *userTime = 0;
+ if (sysTime)
+ *sysTime = 0;
+ if (lastCpu)
+ *lastCpu = 0;
+ if (vm_rss)
+ *vm_rss = 0;
+
+ return 0;
+}
+#endif
+#ifdef __linux__
int
virProcessGetSchedInfo(unsigned long long *cpuWait,
pid_t pid,
@@ -1879,33 +1957,7 @@ virProcessGetSchedInfo(unsigned long long *cpuWait,
return 0;
}
-
#else
-int
-virProcessGetStatInfo(unsigned long long *cpuTime,
- unsigned long long *userTime,
- unsigned long long *sysTime,
- int *lastCpu,
- unsigned long long *vm_rss,
- pid_t pid G_GNUC_UNUSED,
- pid_t tid G_GNUC_UNUSED)
-{
- /* We don't have a way to collect this information on non-Linux
- * platforms, so just report neutral values */
- if (cpuTime)
- *cpuTime = 0;
- if (userTime)
- *userTime = 0;
- if (sysTime)
- *sysTime = 0;
- if (lastCpu)
- *lastCpu = 0;
- if (vm_rss)
- *vm_rss = 0;
-
- return 0;
-}
-
int
virProcessGetSchedInfo(unsigned long long *cpuWait,
pid_t pid G_GNUC_UNUSED,
--
2.49.0