[PATCHv8 08/17] util: Add interface for creating monitor group

[Wang Huaqiang <huaqiang.wang@xxxxxxxxx>]

Add interface for creating the resource monitoring group according
to '@virResctrlMonitor->path'.

Signed-off-by: Wang Huaqiang <huaqiang.wang@xxxxxxxxx>

Reviewed-by: John Ferlan <jferlan@xxxxxxxxxx>
---
 src/libvirt_private.syms |  1 +
 src/util/virresctrl.c    | 24 ++++++++++++++++++++++++
 src/util/virresctrl.h    |  4 ++++
 3 files changed, 29 insertions(+)

diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index e175c8b..a878083 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -2681,6 +2681,7 @@ virResctrlInfoGetMonitorPrefix;
 virResctrlInfoMonFree;
 virResctrlInfoNew;
 virResctrlMonitorAddPID;
+virResctrlMonitorCreate;
 virResctrlMonitorDeterminePath;
 virResctrlMonitorNew;
 
diff --git a/src/util/virresctrl.c b/src/util/virresctrl.c
index 94689dd..3216abe 100644
--- a/src/util/virresctrl.c
+++ b/src/util/virresctrl.c
@@ -2542,3 +2542,27 @@ virResctrlMonitorAddPID(virResctrlMonitorPtr monitor,
 {
     return virResctrlAddPID(monitor->path, pid);
 }
+
+
+int
+virResctrlMonitorCreate(virResctrlMonitorPtr monitor,
+                        const char *machinename)
+{
+    int lockfd = -1;
+    int ret = -1;
+
+    if (!monitor)
+        return 0;
+
+    if (virResctrlMonitorDeterminePath(monitor, machinename) < 0)
+        return -1;
+
+    lockfd = virResctrlLockWrite();
+    if (lockfd < 0)
+        return -1;
+
+    ret = virResctrlCreateGroupPath(monitor->path);
+
+    virResctrlUnlock(lockfd);
+    return ret;
+}
diff --git a/src/util/virresctrl.h b/src/util/virresctrl.h
index 52d283a..76e40a2 100644
--- a/src/util/virresctrl.h
+++ b/src/util/virresctrl.h
@@ -201,4 +201,8 @@ virResctrlMonitorDeterminePath(virResctrlMonitorPtr monitor,
 int
 virResctrlMonitorAddPID(virResctrlMonitorPtr monitor,
                         pid_t pid);
+
+int
+virResctrlMonitorCreate(virResctrlMonitorPtr monitor,
+                        const char *machinename);
 #endif /*  __VIR_RESCTRL_H__ */
-- 
2.7.4

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