Win32 signals cleanup. Patch by Magnus Hagander, with input from Claudio

Natoli and Bruce Momjian (and some cosmetic fixes from Neil Conway).
Changes:

    - remove duplicate signal definitions from pqsignal.h

    - replace pqkill() with kill() and redefine kill() in Win32

    - use ereport() in place of fprintf() in some error handling in
      pqsignal.c

    - export pg_queue_signal() and make use of it where necessary

    - add a console control handler for Ctrl-C and similar handling
      on Win32

    - do WaitForSingleObjectEx() in CHECK_FOR_INTERRUPTS() on Win32;
      query cancelling should now work on Win32

    - various other fixes and cleanups

2 files changed, 4 insertions, 6 deletions

diff --git a/src/backend/storage/ipc/pmsignal.c b/src/backend/storage/ipc/pmsignal.c
index 58eb80fef08..b0fc1aea0ff 100644
--- a/src/backend/storage/ipc/pmsignal.c
+++ b/src/backend/storage/ipc/pmsignal.c
@@ -8,7 +8,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/storage/ipc/pmsignal.c,v 1.12 2004/01/27 00:45:26 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/storage/ipc/pmsignal.c,v 1.13 2004/02/08 22:28:56 neilc Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -20,7 +20,6 @@
 #include "miscadmin.h"
 #include "storage/pmsignal.h"
 #include "storage/shmem.h"
-#include "libpq/pqsignal.h"
 
 
 /*
@@ -65,7 +64,7 @@ SendPostmasterSignal(PMSignalReason reason)
 	/* Atomically set the proper flag */
 	PMSignalFlags[reason] = true;
 	/* Send signal to postmaster */
-	pqkill(PostmasterPid, SIGUSR1);
+	kill(PostmasterPid, SIGUSR1);
 }
 
 /*
diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index a3d4ad08874..f6d7c634a71 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/storage/lmgr/proc.c,v 1.145 2004/01/27 00:45:26 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/storage/lmgr/proc.c,v 1.146 2004/02/08 22:28:56 neilc Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -51,7 +51,6 @@
 #include "storage/proc.h"
 #include "storage/sinval.h"
 #include "storage/spin.h"
-#include "libpq/pqsignal.h"
 
 /* GUC variables */
 int			DeadlockTimeout = 1000;
@@ -1131,7 +1130,7 @@ CheckStatementTimeout(void)
 	{
 		/* Time to die */
 		statement_timeout_active = false;
-		pqkill(MyProcPid, SIGINT);
+		kill(MyProcPid, SIGINT);
 	}
 	else
 	{