[RFC v4 PATCH 31/49] multi-process: handle heartbeat messages in remote process

[Jagannathan Raman]

From: Elena Ufimtseva <elena.ufimts...@oracle.com>

If the remote process is alive, it responds to proxy's heartbeat
messages

Signed-off-by: Jagannathan Raman <jag.ra...@oracle.com>
Signed-off-by: John G Johnson <john.g.john...@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimts...@oracle.com>
---
 remote/remote-main.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/remote/remote-main.c b/remote/remote-main.c
index 729f7e9..27e4492 100644
--- a/remote/remote-main.c
+++ b/remote/remote-main.c
@@ -355,6 +355,7 @@ static void process_msg(GIOCondition cond, MPQemuChannel 
*chan)
 {
     MPQemuMsg *msg = NULL;
     Error *err = NULL;
+    int wait;
 
     if ((cond & G_IO_HUP) || (cond & G_IO_ERR)) {
         error_setg(&err, "socket closed, cond is %d", cond);
@@ -434,6 +435,11 @@ static void process_msg(GIOCondition cond, MPQemuChannel 
*chan)
     case DEVICE_DEL:
         process_device_del_msg(msg);
         break;
+    case PROXY_PING:
+        wait = msg->fds[0];
+        notify_proxy(wait, (uint32_t)getpid());
+        PUT_REMOTE_WAIT(wait);
+        break;
     default:
         error_setg(&err, "Unknown command");
         goto finalize_loop;
-- 
1.8.3.1