Changeset 1654 in vbox for trunk/src/VBox/Devices/Serial

Timestamp:

Mar 23, 2007 10:22:45 AM (18 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

19787

Message:

Wait a bit when nobody has connected yet.

File:

• trunk/src/VBox/Devices/Serial/DrvNamedPipe.cpp (modified) (1 diff)

trunk/src/VBox/Devices/Serial/DrvNamedPipe.cpp

@@ -120 +120 @@
             DWORD uError = GetLastError();
 
-            if (uError == ERROR_IO_PENDING)
+            if (uError == ERROR_PIPE_LISTENING)
             {
-                /* Wait for incoming bytes. */
-                if (GetOverlappedResult((HANDLE)pData->NamedPipe, &pData->OverlappedRead, (DWORD *)&cbReallyRead, TRUE) == FALSE)
+                /* nobody connected yet */
+                cbReallyRead = 0;
+                RTThreadSleep(100);
+            }
+            else
+            {
+                if (uError == ERROR_IO_PENDING)
                 {
-                    uError = GetLastError();
+                    /* Wait for incoming bytes. */
+                    if (GetOverlappedResult((HANDLE)pData->NamedPipe, &pData->OverlappedRead, (DWORD *)&cbReallyRead, TRUE) == FALSE)
+                    {
+                        uError = GetLastError();
+                    }
                 }
+
+                rc = RTErrConvertFromWin32(uError);
+                Log(("drvNamedPipeRead: ReadFile returned %d (%Vrc)\n", uError, rc));
             }
-
-            rc = RTErrConvertFromWin32(uError);
-
-            Log(("drvNamedPipeRead: WriteFile returned %d (%Vrc)\n", uError, rc));
         }