windows-cm_analyze-ewouldblock-20071031

Add support for EWOULDBLOCK to cm_Analyze.  If the file server returns
EWOULDBLOCK, retry the request every two seconds for up to the RDRtimeout.

diff --git a/src/WINNT/afsd/cm_conn.c b/src/WINNT/afsd/cm_conn.c
index 2b3d52cf2f1a18bc7328f18d2d824a5376fb7100..e50e143b793c6b373dcea33c5a60f3e9fecf995e 100644 (file)
--- a/src/WINNT/afsd/cm_conn.c
+++ b/src/WINNT/afsd/cm_conn.c
@@ -225,7 +225,15 @@ cm_Analyze(cm_conn_t *connp, cm_user_t *userp, cm_req_t *reqp,
             cm_CheckServers(CM_FLAG_CHECKDOWNSERVERS, cellp);
             retry = 1;
         }
-    } 
+    }
+
+    else if (errorCode == UAEWOULDBLOCK || errorCode == EWOULDBLOCK ||
+              errorCode == UAEAGAIN || errorCode == EAGAIN) {
+        if (timeLeft > 5 ) {
+            thrd_Sleep(1000);
+            retry = 1;
+        }
+    }
 
     /* if there is nosuchvolume, then we have a situation in which a 
      * previously known volume no longer has a set of servers 
@@ -596,6 +604,8 @@ cm_Analyze(cm_conn_t *connp, cm_user_t *userp, cm_req_t *reqp,
            case UAENOENT          : s = "UAENOENT";           break;
            case VICECONNBAD       : s = "VICECONNBAD";        break;
            case VICETOKENDEAD     : s = "VICETOKENDEAD";      break;
+            case WSAEWOULDBLOCK    : s = "WSAEWOULDBLOCK";     break;
+            case UAEWOULDBLOCK     : s = "UAEWOULDBLOCK";      break;
            case CM_ERROR_NOSUCHCELL        : s = "CM_ERROR_NOSUCHCELL";         break;                         
            case CM_ERROR_NOSUCHVOLUME      : s = "CM_ERROR_NOSUCHVOLUME";       break;                         
            case CM_ERROR_TIMEDOUT          : s = "CM_ERROR_TIMEDOUT";           break;