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/include/btree.h | |
parent | 7646e67e6cc4c738a7b402c60fed39d52db0433b (diff) | |
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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/include/btree.h')
-rw-r--r-- | db2/include/btree.h | 62 |
1 files changed, 44 insertions, 18 deletions
diff --git a/db2/include/btree.h b/db2/include/btree.h index 878096b7b2..1660d331e7 100644 --- a/db2/include/btree.h +++ b/db2/include/btree.h @@ -1,7 +1,7 @@ /*- * See the file LICENSE for redistribution information. * - * Copyright (c) 1996, 1997 + * Copyright (c) 1996, 1997, 1998 * Sleepycat Software. All rights reserved. */ /* @@ -43,7 +43,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * @(#)btree.h 10.17 (Sleepycat) 9/23/97 + * @(#)btree.h 10.21 (Sleepycat) 5/23/98 */ /* Forward structure declarations. */ @@ -103,28 +103,39 @@ struct __recno; typedef struct __recno RECNO; * to return deleted entries. To simplify both the mnemonic representation * and the code that checks for various cases, we construct a set of bitmasks. */ -#define S_READ 0x0001 /* Read locks. */ -#define S_WRITE 0x0002 /* Write locks. */ - -#define S_APPEND 0x0040 /* Append to the tree. */ -#define S_DELNO 0x0080 /* Don't return deleted items. */ -#define S_DUPFIRST 0x0100 /* Return first duplicate. */ -#define S_DUPLAST 0x0200 /* Return last duplicate. */ -#define S_EXACT 0x0400 /* Exact items only. */ -#define S_PARENT 0x0800 /* Lock page pair. */ - -#define S_DELETE (S_WRITE | S_DUPFIRST | S_DELNO | S_EXACT) +#define S_READ 0x00001 /* Read locks. */ +#define S_WRITE 0x00002 /* Write locks. */ + +#define S_APPEND 0x00040 /* Append to the tree. */ +#define S_DELNO 0x00080 /* Don't return deleted items. */ +#define S_DUPFIRST 0x00100 /* Return first duplicate. */ +#define S_DUPLAST 0x00200 /* Return last duplicate. */ +#define S_EXACT 0x00400 /* Exact items only. */ +#define S_PARENT 0x00800 /* Lock page pair. */ +#define S_STACK 0x01000 /* Need a complete stack. */ + +#define S_DELETE (S_WRITE | S_DUPFIRST | S_DELNO | S_EXACT | S_STACK) #define S_FIND (S_READ | S_DUPFIRST | S_DELNO) -#define S_INSERT (S_WRITE | S_DUPLAST) -#define S_KEYFIRST (S_WRITE | S_DUPFIRST) -#define S_KEYLAST (S_WRITE | S_DUPLAST) +#define S_INSERT (S_WRITE | S_DUPLAST | S_STACK) +#define S_KEYFIRST (S_WRITE | S_DUPFIRST | S_STACK) +#define S_KEYLAST (S_WRITE | S_DUPLAST | S_STACK) #define S_WRPAIR (S_WRITE | S_DUPLAST | S_PARENT) /* + * If doing insert search (including keyfirst or keylast operations) or a + * split search on behalf of an insert, it's okay to return the entry one + * past the end of the page. + */ +#define PAST_END_OK(f) \ + ((f) == S_INSERT || \ + (f) == S_KEYFIRST || (f) == S_KEYLAST || (f) == S_WRPAIR) + +/* * Flags to __bam_iitem(). */ -#define BI_NEWKEY 0x01 /* New key. */ -#define BI_DELETED 0x02 /* Key/data pair only placeholder. */ +#define BI_DELETED 0x01 /* Key/data pair only placeholder. */ +#define BI_DOINCR 0x02 /* Increment the record count. */ +#define BI_NEWKEY 0x04 /* New key. */ /* * Various routines pass around page references. A page reference can be a @@ -138,6 +149,21 @@ struct __epg { }; /* + * All cursors are queued from the master DB structure. Convert the user's + * DB reference to the master DB reference. We lock the master DB mutex + * so that we can walk the cursor queue. There's no race in accessing the + * cursors, because if we're modifying a page, we have a write lock on it, + * and therefore no other thread than the current one can have a cursor that + * references the page. + */ +#define CURSOR_SETUP(dbp) { \ + (dbp) = (dbp)->master; \ + DB_THREAD_LOCK(dbp); \ +} +#define CURSOR_TEARDOWN(dbp) \ + DB_THREAD_UNLOCK(dbp); + +/* * Btree cursor. * * Arguments passed to __bam_ca_replace(). |