diff options
| -rw-r--r-- | src/interfaces/libpgtcl/pgtclId.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/src/interfaces/libpgtcl/pgtclId.c b/src/interfaces/libpgtcl/pgtclId.c index 05dfb19b6de..1d3cd29709a 100644 --- a/src/interfaces/libpgtcl/pgtclId.c +++ b/src/interfaces/libpgtcl/pgtclId.c @@ -12,7 +12,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/interfaces/libpgtcl/Attic/pgtclId.c,v 1.12 1998/08/17 03:50:26 scrappy Exp $ + * $Header: /cvsroot/pgsql/src/interfaces/libpgtcl/Attic/pgtclId.c,v 1.13 1998/08/22 04:34:22 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -475,6 +475,7 @@ static void Pg_Notify_SetupProc (ClientData clientData, int flags) { Pg_ConnectionId *connid = (Pg_ConnectionId *) clientData; Tcl_File handle; + int pqsock; /* We classify SQL notifies as Tcl file events. */ if (!(flags & TCL_FILE_EVENTS)) { @@ -482,7 +483,11 @@ static void Pg_Notify_SetupProc (ClientData clientData, int flags) } /* Set up to watch for asynchronous data arrival on backend channel */ - handle = Tcl_GetFile((ClientData) PQsocket(connid->conn), TCL_UNIX_FD); + pqsock = PQsocket(connid->conn); + if (pqsock < 0) + return; + + handle = Tcl_GetFile((ClientData) pqsock, TCL_UNIX_FD); Tcl_WatchFile(handle, TCL_READABLE); } @@ -492,6 +497,7 @@ static void Pg_Notify_CheckProc (ClientData clientData, int flags) { Pg_ConnectionId *connid = (Pg_ConnectionId *) clientData; Tcl_File handle; + int pqsock; /* We classify SQL notifies as Tcl file events. */ if (!(flags & TCL_FILE_EVENTS)) { @@ -503,7 +509,11 @@ static void Pg_Notify_CheckProc (ClientData clientData, int flags) * We use Tcl_FileReady to avoid a useless kernel call * when no data is available. */ - handle = Tcl_GetFile((ClientData) PQsocket(connid->conn), TCL_UNIX_FD); + pqsock = PQsocket(connid->conn); + if (pqsock < 0) + return; + + handle = Tcl_GetFile((ClientData) pqsock, TCL_UNIX_FD); if (Tcl_FileReady(handle, TCL_READABLE) != 0) { PQconsumeInput(connid->conn); } |