From 9327d9b56ca832302c36548329d83688d4f5bdb4 Mon Sep 17 00:00:00 2001
From: S Rahul <srahul@novell.com>
Date: Wed, 15 Apr 2009 04:21:32 +0000
Subject: [PATCH] Bug#489688: While trying to open named pipe to talk to
 micasad, micasa client may get an error ERROR_PIPE_BUSY. Client has to retry
 operation.

---
 CASA/micasacache/sscs_ipc.c | 34 ++++++++++++++++++++++++----------
 1 file changed, 24 insertions(+), 10 deletions(-)

diff --git a/CASA/micasacache/sscs_ipc.c b/CASA/micasacache/sscs_ipc.c
index 282c95e4..c03ce446 100644
--- a/CASA/micasacache/sscs_ipc.c
+++ b/CASA/micasacache/sscs_ipc.c
@@ -94,23 +94,37 @@ void * ipc_win_create()
 //#ifdef SSCS_WIN32_PLAT_F
 	// connect to the named Pipe
 	HANDLE hPipe = NULL;
-	int rcode;
+	int rcode = 0, i;
 	DWORD mode = PIPE_READMODE_MESSAGE;
 
 	DbgTrace(1, "  -ipc_win_create- start\n", 0);
 
-	hPipe = CreateFile(
-		XTIER_RPC_PIPE, 
-		GENERIC_READ | GENERIC_WRITE, 
-		0, 
-		NULL, //null, 
-		OPEN_EXISTING, 
-		0, 
-		0);
+	for (i = 0; i < 5; i++) {
+		hPipe = CreateFile(
+			XTIER_RPC_PIPE, 
+			GENERIC_READ | GENERIC_WRITE, 
+			0, 
+			NULL, //null, 
+			OPEN_EXISTING, 
+			0, 
+			0);
+
+		if (hPipe != INVALID_HANDLE_VALUE)
+			break;
+
+		rcode = GetLastError();
+
+		if (rcode != ERROR_PIPE_BUSY)
+			break;
+
+		 if (!WaitNamedPipe(XTIER_RPC_PIPE, 5000)) { 
+			 rcode = GetLastError();
+			 break;
+		 } 
+	}
 
 	if (hPipe == INVALID_HANDLE_VALUE)
 	{
-		rcode = GetLastError();	
 		DbgTrace(0, " Create Pipe error:%d\r\n", rcode);
 		return -1;
 	}