Removal of win32-specific rename code

Claudio found that his new delete fix for Win32 also works for rename on
files open by other processes, so I have applied the following patch to
remove the special rename() handling on Win32.  What it used to do was
to rename a file to a *.new, release locks, then do the rename to the
main file.  WIth Claudio's fix, this isn't necessary.

--
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073
Index: src/backend/commands/user.c
===================================================================
RCS file: /cvsroot/pgsql-server/src/backend/commands/user.c,v
retrieving revision 1.138
diff -c -c -r1.138 user.c
*** src/backend/commands/user.c    25 Feb 2004 19:41:22 -0000    1.138
--- src/backend/commands/user.c    16 Mar 2004 04:51:18 -0000
***************
*** 140,149 ****
      bufsize = strlen(filename) + 12;
      tempname = (char *) palloc(bufsize);
      snprintf(tempname, bufsize, "%s.%d", filename, MyProcPid);
- #if defined(WIN32) || defined(__CYGWIN__)
-     filename = repalloc(filename, strlen(filename) + 1 + strlen(".new"));
-     strcat(filename, ".new");
- #endif

      oumask = umask((mode_t) 077);
      fp = AllocateFile(tempname, "w");
--- 140,145 ----
***************
*** 291,300 ****
      bufsize = strlen(filename) + 12;
      tempname = (char *) palloc(bufsize);
      snprintf(tempname, bufsize, "%s.%d", filename, MyProcPid);
- #if defined(WIN32) || defined(__CYGWIN__)
-     filename = repalloc(filename, strlen(filename) + 1 + strlen(".new"));
-     strcat(filename, ".new");
- #endif

      oumask = umask((mode_t) 077);
      fp = AllocateFile(tempname, "w");
--- 287,292 ----
***************
*** 466,483 ****
          user_file_update_needed = false;
          write_user_file(urel);
          heap_close(urel, NoLock);
- #if defined(WIN32) || defined(__CYGWIN__)
-         {
-             /* Rename active file while not holding an exclusive lock */
-             char *filename = user_getfilename(), *filename_new;
-
-             filename_new = palloc(strlen(filename) + 1 + strlen(".new"));
-             sprintf(filename_new, "%s.new", filename);
-             rename(filename_new, filename);
-             pfree(filename);
-             pfree(filename_new);
-         }
- #endif
      }

      if (group_file_update_needed)
--- 458,463 ----
***************
*** 485,502 ****
          group_file_update_needed = false;
          write_group_file(grel);
          heap_close(grel, NoLock);
- #if defined(WIN32) || defined(__CYGWIN__)
-         {
-             /* Rename active file while not holding an exclusive lock */
-             char *filename = group_getfilename(), *filename_new;
-
-             filename_new = palloc(strlen(filename) + 1 + strlen(".new"));
-             sprintf(filename_new, "%s.new", filename);
-             rename(filename_new, filename);
-             pfree(filename);
-             pfree(filename_new);
-         }
- #endif
      }

      /*
--- 465,470 ----
Index: src/backend/utils/cache/relcache.c
===================================================================
RCS file: /cvsroot/pgsql-server/src/backend/utils/cache/relcache.c,v
retrieving revision 1.199
diff -c -c -r1.199 relcache.c
*** src/backend/utils/cache/relcache.c    14 Mar 2004 23:41:27 -0000    1.199
--- src/backend/utils/cache/relcache.c    16 Mar 2004 04:51:25 -0000
***************
*** 3278,3297 ****
           * OK, rename the temp file to its final name, deleting any
           * previously-existing init file.
           */
- #if defined(WIN32) || defined(__CYGWIN__)
          rename(tempfilename, finalfilename);
          LWLockRelease(RelCacheInitLock);
- #else
-         {
-             char        finalfilename_new[MAXPGPATH];
-
-             snprintf(finalfilename_new, sizeof(finalfilename_new), "%s.new", finalfilename);
-             rename(tempfilename, finalfilename_new);
-             LWLockRelease(RelCacheInitLock);
-             /* Rename to active file after lock is released */
-             rename(finalfilename_new, finalfilename);
-         }
- #endif
      }
      else
      {
--- 3278,3285 ----