util: introduce virProcessGroupGet

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>

diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 06e37c817f69283951934b269e95bb2a5627156a..ee7fdcfab4199a17db7c4655c47d7fc5d2703fad 100644 (file)
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -3070,6 +3070,7 @@ virProcessGetMaxMemLock;
 virProcessGetNamespaces;
 virProcessGetPids;
 virProcessGetStartTime;
+virProcessGroupGet;
 virProcessGroupKill;
 virProcessKill;
 virProcessKillPainfully;

diff --git a/src/util/virprocess.c b/src/util/virprocess.c
index 5f01dd1f67a8b23503104f429a64f25abefef3f5..1bc840120a5f915164a7eac7817259c3e71d0e78 100644 (file)
--- a/src/util/virprocess.c
+++ b/src/util/virprocess.c
@@ -378,6 +378,23 @@ int virProcessGroupKill(pid_t pid, int sig G_GNUC_UNUSED)
 }
 
 
+/* get process group from a pid */
+pid_t virProcessGroupGet(pid_t pid)
+{
+    if (pid <= 1) {
+        errno = ESRCH;
+        return -1;
+    }
+
+#ifdef WIN32
+    errno = ENOSYS;
+    return -1;
+#else
+    return getpgid(pid);
+#endif
+}
+
+
 /*
  * Try to kill the process and verify it has exited
  *

diff --git a/src/util/virprocess.h b/src/util/virprocess.h
index 0359d7fd9f3900b44a2f30bc052c4285e8aeb77a..9d7c0f479a17af060a1a428653cd43f194038fc6 100644 (file)
--- a/src/util/virprocess.h
+++ b/src/util/virprocess.h
@@ -53,6 +53,7 @@ virProcessWait(pid_t pid, int *exitstatus, bool raw)
 
 int virProcessKill(pid_t pid, int sig);
 int virProcessGroupKill(pid_t pid, int sig);
+pid_t virProcessGroupGet(pid_t pid);
 
 int virProcessKillPainfully(pid_t pid, bool force);
 int virProcessKillPainfullyDelay(pid_t pid,