From c207f23b0b6b2d215be65e670d453768ad304247 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 8 Sep 2004 15:46:42 +0000 Subject: Update. * nscd/connections.c: Implement r/o sharing of nscd's cache with client processes via shared memory. * nscd/nscd-client.h: Likewise. * nscd/nscd.h: Likewise. * nscd/nscd_conf.c: Likewise. * nscd/nscd_getgr_r.c: Likewise. * nscd/nscd_getpw_r.c: Likewise. * nscd/nscd_gethst_r.c: Likewise. * nscd/nscd.conf: Add new config parameters. * nscd/Makefile (aux): Add nscd_helper. * nscd/nscd_helper.c: New file. * nscd/mem.c (gc): Indicate beginning and end of the gc cycle. * nscd/hstcache.c: Simplify a lot. We cache only the request itself, no derived information. * connections.c (nscd_init): Fix bug in testing size of the persistent. * nis/Makefile (aux): Add nis_hash. * nis/nis_hash.c: New file. Split out from nis_util.c. * nis/nis_util.c: Move __nis_hash code in separate file. * csu/tst-atomic.c: Improve atomic_increment_val test which would not have found a ppc bug. --- nscd/mem.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'nscd/mem.c') diff --git a/nscd/mem.c b/nscd/mem.c index a4e30535c8..5207efc2de 100644 --- a/nscd/mem.c +++ b/nscd/mem.c @@ -230,6 +230,12 @@ gc (struct database_dyn *db) ++next_data; + /* Now we start modifying the data. Make sure all readers of the + data are aware of this and temporarily don't use the data. */ + ++db->head->gc_cycle; + assert ((db->head->gc_cycle & 1) == 1); + + /* We do not perform the move operations right away since the he_data array is not sorted by the address of the data. */ struct moveinfo @@ -445,6 +451,11 @@ gc (struct database_dyn *db) msync (db->head, db->data + db->head->first_free - (char *) db->head, MS_ASYNC); + + /* Now we are done modifying the data. */ + ++db->head->gc_cycle; + assert ((db->head->gc_cycle & 1) == 0); + /* We are done. */ out: pthread_mutex_unlock (&db->memlock); -- cgit v1.2.3