Fix Win32 problems with signals and sockets, by making the forkexec code

even uglier than it was already :-(.  Also, on Windows only, use temporary
shared memory segments instead of ordinary files to pass over critical
variable values from postmaster to child processes.  Magnus Hagander

src/backend/main/main.c

@@ -13,7 +13,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/main/main.c,v 1.92 2004/11/05 17:11:17 petere Exp $
+ *	  $PostgreSQL: pgsql/src/backend/main/main.c,v 1.93 2004/11/17 00:14:09 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -118,9 +118,6 @@ main(int argc, char *argv[])
 						 argv[0], err);
 			exit(1);
 		}
-
-		/* Start our win32 signal implementation */
-		pgwin32_signal_initialize();
 	}
 #endif
 
@@ -281,6 +278,16 @@ main(int argc, char *argv[])
 		exit(SubPostmasterMain(argc, argv));
 #endif
 
+#ifdef WIN32
+	/*
+	 * Start our win32 signal implementation
+	 *
+	 * SubPostmasterMain() will do this for itself, but the remaining
+	 * modes need it here
+	 */
+	pgwin32_signal_initialize();
+#endif
+
 	/*
 	 * If the first argument is "-boot", then invoke bootstrap mode. (This
 	 * path is taken only for a standalone bootstrap process.)