[all] Removed call to getppid in SendPostmasterSignal, replacing with a

PostmasterPid variable, which gets set (early) in PostmasterMain
getppid would not be the postmaster?

[fork/exec] Implements processCancelRequest by keeping an array of

pid/cancel_key structs in shared mem

[fork/exec] Moves AttachSharedMemoryAndSemaphores call for backends into
SubPostmasterMain

[win32] Implements reaper/waitpid by keeping an arrays of children
pids,handles in postmaster local mem
      - this item is largely untested, for reasons which should be
obvious, but appears sound

[win32/all] Added extern for pgpipe in Win32 case, and changed the second
pipe call (which seems to have been missed earlier) to pgpipe

[win32] #define'd ftruncate to chsize in the Win32 case

[win32] PG_USLEEP for Win32 has a misplaced paren. Fixed.

[win32] DLLIMPORT handling for MingW case


Claudio Natoli

src/backend/postmaster/pgstat.c

@@ -13,7 +13,7 @@
  *
  *	Copyright (c) 2001-2003, PostgreSQL Global Development Group
  *
- *	$PostgreSQL: pgsql/src/backend/postmaster/pgstat.c,v 1.55 2004/01/26 22:54:56 momjian Exp $
+ *	$PostgreSQL: pgsql/src/backend/postmaster/pgstat.c,v 1.56 2004/01/26 22:59:53 momjian Exp $
  * ----------
  */
 #include "postgres.h"
@@ -147,7 +147,7 @@ static void pgstat_recv_resetcounter(PgStat_MsgResetcounter *msg, int len);
 #define piperead(a,b,c)		read(a,b,c)
 #define pipewrite(a,b,c)	write(a,b,c)
 #else
-/* pgpipe() is in /src/port */
+extern int pgpipe(int handles[2]); /* pgpipe() is in /src/port */
 #define piperead(a,b,c)		recv(a,b,c,0)
 #define pipewrite(a,b,c)	send(a,b,c,0)
 #endif
@@ -322,7 +322,7 @@ pgstat_init(void)
 	/*
 	 * Create the pipe that controls the statistics collector shutdown
 	 */
-	if (pipe(pgStatPmPipe) < 0)
+	if (pgpipe(pgStatPmPipe) < 0)
 	{
 		ereport(LOG,
 				(errcode_for_socket_access(),