Merge branch 'master' of ted.mutabah.net:acess2

[tpg/acess2.git] / Usermode / Applications / axwin3_src / WM / ipc.c

diff --git a/Usermode/Applications/axwin3_src/WM/ipc.c b/Usermode/Applications/axwin3_src/WM/ipc.c
index 92f8984..b3648bb 100644 (file)
--- a/Usermode/Applications/axwin3_src/WM/ipc.c
+++ b/Usermode/Applications/axwin3_src/WM/ipc.c
@@ -75,30 +75,40 @@ void IPC_Init(void)
         int    tmp;
        // TODO: Check this
        giNetworkFileHandle = open("/Devices/ip/loop/udp", OPENFLAG_READ);
-       tmp = AXWIN_PORT;       ioctl(giNetworkFileHandle, 4, &tmp);    // TODO: Don't hard-code IOCtl number
+       if( giNetworkFileHandle != -1 )
+       {
+               tmp = AXWIN_PORT;
+               ioctl(giNetworkFileHandle, 4, &tmp);    // TODO: Don't hard-code IOCtl number
+       }
 }
 
 void IPC_FillSelect(int *nfds, fd_set *set)
 {
-       if( giNetworkFileHandle > *nfds )       *nfds = giNetworkFileHandle;
-       FD_SET(giNetworkFileHandle, set);
+       if( giNetworkFileHandle != -1 )
+       {
+               if( giNetworkFileHandle > *nfds )       *nfds = giNetworkFileHandle;
+               FD_SET(giNetworkFileHandle, set);
+       }
 }
 
 void IPC_HandleSelect(fd_set *set)
 {
-       if( FD_ISSET(giNetworkFileHandle, set) )
+       if( giNetworkFileHandle != -1 )
        {
-               char    staticBuf[STATICBUF_SIZE];
-                int    readlen, identlen;
-               char    *msg;
-
-               readlen = read(giNetworkFileHandle, staticBuf, sizeof(staticBuf));
-               
-               identlen = 4 + Net_GetAddressSize( ((uint16_t*)staticBuf)[1] );
-               msg = staticBuf + identlen;
-
-               IPC_Handle(&gIPC_Type_Datagram, staticBuf, readlen - identlen, (void*)msg);
-//             _SysDebug("IPC_HandleSelect: UDP handled");
+               if( FD_ISSET(giNetworkFileHandle, set) )
+               {
+                       char    staticBuf[STATICBUF_SIZE];
+                        int    readlen, identlen;
+                       char    *msg;
+       
+                       readlen = read(giNetworkFileHandle, staticBuf, sizeof(staticBuf));
+                       
+                       identlen = 4 + Net_GetAddressSize( ((uint16_t*)staticBuf)[1] );
+                       msg = staticBuf + identlen;
+       
+                       IPC_Handle(&gIPC_Type_Datagram, staticBuf, readlen - identlen, (void*)msg);
+//                     _SysDebug("IPC_HandleSelect: UDP handled");
+               }
        }
 
        while(SysGetMessage(NULL, NULL))