diff options
author | Ulrich Drepper <drepper@redhat.com> | 1998-06-09 15:16:55 +0000 |
---|---|---|
committer | Ulrich Drepper <drepper@redhat.com> | 1998-06-09 15:16:55 +0000 |
commit | bf7997b65c7887d2acda95f5201d818a19d81711 (patch) | |
tree | da3583de3a0b5892f90a4b1eb773a87b554ae37e /db2/mp/mp_bh.c | |
parent | 7646e67e6cc4c738a7b402c60fed39d52db0433b (diff) | |
download | glibc-bf7997b65c7887d2acda95f5201d818a19d81711.tar.gz glibc-bf7997b65c7887d2acda95f5201d818a19d81711.tar.xz glibc-bf7997b65c7887d2acda95f5201d818a19d81711.zip |
Update.
1998-06-09 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/netinet/ip.h (struct ip_options): Define __data member only for gcc. Reported by ak@muc.de. * misc/mntent.h: Undo last patch. * sysdeps/unix/sysv/linux/fstatvfs.c (fstatvfs): Undo last patch. * misc/tst/mntent.c: Adjust code for this change. * io/fts.c: Updated from a slightly more recent BSD version. * io/fts.h: Likewise. * libc.map: Add __libc_stack_end. * db2/Makefile (routines): Add lock_region. * db2/config.h: Update from db-2.4.14. * db2/db.h: Likewise. * db2/db_185.h: Likewise. * db2/db_int.h: Likewise. * db2/bt_close.c: Likewise. * db2/bt_compare.c: Likewise. * db2/bt_conv.c: Likewise. * db2/bt_cursor.c: Likewise. * db2/bt_delete.c: Likewise. * db2/bt_open.c: Likewise. * db2/bt_page.c: Likewise. * db2/bt_put.c: Likewise. * db2/bt_rec.c: Likewise. * db2/bt_recno.c: Likewise. * db2/bt_rsearch.c: Likewise. * db2/bt_search.c: Likewise. * db2/bt_split.c: Likewise. * db2/bt_stat.c: Likewise. * db2/btree.src: Likewise. * db2/btree_auto.c: Likewise. * db2/getlong.c: Likewise. * db2/db_appinit.c: Likewise. * db2/db_apprec.c: Likewise. * db2/db_byteorder.c: Likewise. * db2/db_err.c: Likewise. * db2/db_log2.c: Likewise. * db2/db_region.c: Likewise. * db2/db_salloc.c: Likewise. * db2/db_shash.c: Likewise. * db2/db.c: Likewise. * db2/db.src: Likewise. * db2/db_auto.c: Likewise. * db2/db_conv.c: Likewise. * db2/db_dispatch.c: Likewise. * db2/db_dup.c: Likewise. * db2/db_overflow.c: Likewise. * db2/db_pr.c: Likewise. * db2/db_rec.c: Likewise. * db2/db_ret.c: Likewise. * db2/db_thread.c: Likewise. * db2/db185.c: Likewise. * db2/db185_int.h: Likewise. * db2/dbm.c: Likewise. * db2/hash.c: Likewise. * db2/hash.src: Likewise. * db2/hash_auto.c: Likewise. * db2/hash_conv.c: Likewise. * db2/hash_debug.c: Likewise. * db2/hash_dup.c: Likewise. * db2/hash_func.c: Likewise. * db2/hash_page.c: Likewise. * db2/hash_rec.c: Likewise. * db2/hash_stat.c: Likewise. * db2/btree.h: Likewise. * db2/btree_ext.h: Likewise. * db2/clib_ext.h: Likewise. * db2/common_ext.h: Likewise. * db2/cxx_int.h: Likewise. * db2/db.h.src: Likewise. * db2/db_185.h.src: Likewise. * db2/db_am.h: Likewise. * db2/db_auto.h: Likewise. * db2/db_cxx.h: Likewise. * db2/db_dispatch.h: Likewise. * db2/db_ext.h: Likewise. * db2/db_int.h.src: Likewise. * db2/db_page.h: Likewise. * db2/db_shash.h: Likewise. * db2/db_swap.h: Likewise. * db2/hash.h: Likewise. * db2/hash_ext.h: Likewise. * db2/lock.h: Likewise. * db2/lock_ext.h: Likewise. * db2/log.h: Likewise. * db2/log_ext.h: Likewise. * db2/mp.h: Likewise. * db2/mp_ext.h: Likewise. * db2/mutex_ext.h: Likewise. * db2/os_ext.h: Likewise. * db2/os_func.h: Likewise. * db2/queue.h: Likewise. * db2/shqueue.h: Likewise. * db2/txn.h: Likewise. * db2/lock.c: Likewise. * db2/lock_conflict.c: Likewise. * db2/lock_deadlock.c: Likewise. * db2/lock_region.c: Likewise. * db2/lock_util.c: Likewise. * db2/log.c: Likewise. * db2/log.src: Likewise. * db2/log_archive.c: Likewise. * db2/log_auto.c: Likewise. * db2/log_compare.c: Likewise. * db2/log_findckp.c: Likewise. * db2/log_get.c: Likewise. * db2/log_put.c: Likewise. * db2/log_rec.c: Likewise. * db2/log_register.c: Likewise. * db2/mp_bh.c: Likewise. * db2/mp_fget.c: Likewise. * db2/mp_fopen.c: Likewise. * db2/mp_fput.c: Likewise. * db2/mp_fset.c: Likewise. * db2/mp_open.c: Likewise. * db2/mp_pr.c: Likewise. * db2/mp_region.c: Likewise. * db2/mp_sync.c: Likewise. * db2/68020.gcc: Likewise. * db2/mutex.c: Likewise. * db2/parisc.gcc: Likewise. * db2/parisc.hp: Likewise. * db2/sco.cc: Likewise. * db2/os_abs.c: Likewise. * db2/os_alloc.c: Likewise. * db2/os_config.c: Likewise. * db2/os_dir.c: Likewise. * db2/os_fid.c: Likewise. * db2/os_fsync.c: Likewise. * db2/os_map.c: Likewise. * db2/os_oflags.c: Likewise. * db2/os_open.c: Likewise. * db2/os_rpath.c: Likewise. * db2/os_rw.c: Likewise. * db2/os_seek.c: Likewise. * db2/os_sleep.c: Likewise. * db2/os_spin.c: Likewise. * db2/os_stat.c: Likewise. * db2/os_unlink.c: Likewise. * db2/db_archive.c: Likewise. * db2/db_checkpoint.c: Likewise. * db2/db_deadlock.c: Likewise. * db2/db_dump.c: Likewise. * db2/db_dump185.c: Likewise. * db2/db_load.c: Likewise. * db2/db_printlog.c: Likewise. * db2/db_recover.c: Likewise. * db2/db_stat.c: Likewise. * db2/txn.c: Likewise. * db2/txn.src: Likewise. * db2/txn_auto.c: Likewise. * db2/txn_rec.c: Likewise. * elf/rtld.c: Move definition of __libc_stack_end to ... * sysdeps/generic/dl-sysdep.h: ...here. * sysdeps/unix/sysv/linux/fstatvfs.c: Handle nodiratime option. * sysdeps/unix/sysv/linux/bits/statvfs.h: Define ST_NODIRATIME. * sysdeps/unix/sysv/linux/sys/mount.h: Define MS_NODIRATIME. 1998-06-08 21:44 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/fstatvfs.c: Handle constant option string from mntent correctly. 1998-06-06 Andreas Jaeger <aj@arthur.rhein-neckar.de> * sunrpc/Makefile (generated): Correct typo. 1998-06-04 Philip Blundell <philb@gnu.org> * elf/elf.h (EM_ARM, et al.): New definitions. * sysdeps/arm/dl-machine.h: Update for new draft ARM ELF ABI.
Diffstat (limited to 'db2/mp/mp_bh.c')
-rw-r--r-- | db2/mp/mp_bh.c | 79 |
1 files changed, 49 insertions, 30 deletions
diff --git a/db2/mp/mp_bh.c b/db2/mp/mp_bh.c index c23abdda24..d89f9c2ded 100644 --- a/db2/mp/mp_bh.c +++ b/db2/mp/mp_bh.c @@ -1,13 +1,13 @@ /*- * See the file LICENSE for redistribution information. * - * Copyright (c) 1996, 1997 + * Copyright (c) 1996, 1997, 1998 * Sleepycat Software. All rights reserved. */ #include "config.h" #ifndef lint -static const char sccsid[] = "@(#)mp_bh.c 10.28 (Sleepycat) 1/8/98"; +static const char sccsid[] = "@(#)mp_bh.c 10.38 (Sleepycat) 5/20/98"; #endif /* not lint */ #ifndef NO_SYSTEM_INCLUDES @@ -59,8 +59,10 @@ __memp_bhwrite(dbmp, mfp, bhp, restartp, wrotep) dbmfp != NULL; dbmfp = TAILQ_NEXT(dbmfp, q)) if (dbmfp->mfp == mfp) { if (F_ISSET(dbmfp, MP_READONLY) && - __memp_upgrade(dbmp, dbmfp, mfp)) + __memp_upgrade(dbmp, dbmfp, mfp)) { + UNLOCKHANDLE(dbmp, dbmp->mutexp); return (0); + } break; } UNLOCKHANDLE(dbmp, dbmp->mutexp); @@ -111,8 +113,8 @@ __memp_bhwrite(dbmp, mfp, bhp, restartp, wrotep) if (F_ISSET(mfp, MP_TEMP)) return (0); - if (__memp_fopen(dbmp, mfp, R_ADDR(dbmp, mfp->path_off), mfp->ftype, - 0, 0, mfp->stat.st_pagesize, 0, NULL, NULL, 0, &dbmfp) != 0) + if (__memp_fopen(dbmp, mfp, R_ADDR(dbmp, mfp->path_off), + 0, 0, mfp->stat.st_pagesize, 0, NULL, &dbmfp) != 0) return (0); found: return (__memp_pgwrite(dbmfp, bhp, restartp, wrotep)); @@ -152,7 +154,7 @@ __memp_pgread(dbmfp, bhp, can_create) ret = 0; LOCKHANDLE(dbmp, dbmfp->mutexp); if (dbmfp->fd == -1 || (ret = - __db_seek(dbmfp->fd, pagesize, bhp->pgno, 0, SEEK_SET)) != 0) { + __db_seek(dbmfp->fd, pagesize, bhp->pgno, 0, 0, SEEK_SET)) != 0) { if (!can_create) { if (dbmfp->fd == -1) ret = EINVAL; @@ -164,8 +166,17 @@ __memp_pgread(dbmfp, bhp, can_create) } UNLOCKHANDLE(dbmp, dbmfp->mutexp); - /* Clear any uninitialized data. */ - memset(bhp->buf, 0, pagesize); + /* Clear the created page. */ + if (mfp->clear_len == 0) + memset(bhp->buf, 0, pagesize); + else { + memset(bhp->buf, 0, mfp->clear_len); +#ifdef DIAGNOSTIC + memset(bhp->buf + mfp->clear_len, + 0xff, pagesize - mfp->clear_len); +#endif + } + goto pgin; } @@ -186,8 +197,16 @@ __memp_pgread(dbmfp, bhp, can_create) goto err; } - /* Clear any uninitialized data. */ - memset(bhp->buf + nr, 0, pagesize - nr); + /* + * If we didn't fail until we tried the read, don't clear the + * whole page, it wouldn't be insane for a filesystem to just + * always behave that way. Else, clear any uninitialized data. + */ + if (nr == 0) + memset(bhp->buf, 0, + mfp->clear_len == 0 ? pagesize : mfp->clear_len); + else + memset(bhp->buf + nr, 0, pagesize - nr); } /* Call any pgin function. */ @@ -308,31 +327,31 @@ __memp_pgwrite(dbmfp, bhp, restartp, wrotep) /* Temporary files may not yet have been created. */ LOCKHANDLE(dbmp, dbmfp->mutexp); - if (dbmfp->fd == -1) - if ((ret = __db_appname(dbenv, DB_APP_TMP, - NULL, NULL, &dbmfp->fd, NULL)) != 0 || dbmfp->fd == -1) { - UNLOCKHANDLE(dbmp, dbmfp->mutexp); - __db_err(dbenv, - "unable to create temporary backing file"); - goto err; - } + if (dbmfp->fd == -1 && + ((ret = __db_appname(dbenv, DB_APP_TMP, NULL, NULL, + DB_CREATE | DB_EXCL | DB_TEMPORARY, &dbmfp->fd, NULL)) != 0 || + dbmfp->fd == -1)) { + UNLOCKHANDLE(dbmp, dbmfp->mutexp); + __db_err(dbenv, "unable to create temporary backing file"); + goto err; + } - /* Write the page out. */ - if ((ret = __db_seek(dbmfp->fd, pagesize, bhp->pgno, 0, SEEK_SET)) != 0) + /* + * Write the page out. + * + * XXX + * Shut the compiler up; it doesn't understand the correlation between + * the failing clauses to __db_lseek and __db_write and this ret != 0. + */ + COMPQUIET(fail, NULL); + if ((ret = + __db_seek(dbmfp->fd, pagesize, bhp->pgno, 0, 0, SEEK_SET)) != 0) fail = "seek"; else if ((ret = __db_write(dbmfp->fd, bhp->buf, pagesize, &nw)) != 0) fail = "write"; UNLOCKHANDLE(dbmp, dbmfp->mutexp); - if (ret != 0) { - /* - * XXX - * Shut the compiler up; it doesn't understand the correlation - * between the failing clauses to __db_lseek and __db_write and - * this ret != 0. - */ - COMPQUIET(fail, NULL); + if (ret != 0) goto syserr; - } if (nw != (ssize_t)pagesize) { ret = EIO; @@ -548,7 +567,7 @@ __memp_upgrade(dbmp, dbmfp, mfp) * way we could have gotten a file descriptor of any kind. */ if ((ret = __db_appname(dbmp->dbenv, DB_APP_DATA, - NULL, R_ADDR(dbmp, mfp->path_off), NULL, &rpath)) != 0) + NULL, R_ADDR(dbmp, mfp->path_off), 0, NULL, &rpath)) != 0) return (ret); if (__db_open(rpath, 0, 0, 0, &fd) != 0) { F_SET(dbmfp, MP_UPGRADE_FAIL); |