- mmbsd: improve DEBUGSLEEP proctitle for debugging multiple versions

- bbs: try to prevent mmap SEGV issue (caused by mv(1) truncating ?)
- pmore: change back to MAP_SHARED, and try MAP_POPULATE


git-svn-id: http://opensvn.csie.org/pttbbs/trunk/pttbbs@3810 63ad8ddf-47c3-0310-b6dd-a9e9d9715204

1 files changed, 7 insertions, 2 deletions

diff --git a/mbbsd/bbs.c b/mbbsd/bbs.c
index 31d74a62..87b6f140 100644
--- a/mbbsd/bbs.c
+++ b/mbbsd/bbs.c
@@ -1560,8 +1560,13 @@ edit_post(int ent, fileheader_t * fhdr, const char *direct)
 
 	// OK to save file.
 
-	// force to remove file first?
-	// unlink(genbuf);
+	// piaip Wed Jan  9 11:11:33 CST 2008
+	// in order to prevent calling system 'mv' all the
+	// time, it is better to unlink() first, which
+	// increased the chance of succesfully using rename().
+	// WARNING: if genbuf and fpath are in different directory,
+	// you should disable pre-unlinking
+	unlink(genbuf);
         Rename(fpath, genbuf);
 	fhdr->modified = dasht(genbuf);