diff options
author | Ulrich Drepper <drepper@redhat.com> | 1997-08-27 20:26:10 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1997-08-27 20:26:10 +0000 |
commit | 92f1da4da04a7a86ddee91be5eaf0b10c333ac64 (patch) | |
tree | 2a10ce9e4e407e7e5b5ca092ca0947d234b5ff60 /db2/include/log.h | |
parent | 22be878ecbc66606371bd33258f56e6711e6ba7a (diff) | |
download | glibc-92f1da4da04a7a86ddee91be5eaf0b10c333ac64.tar.gz glibc-92f1da4da04a7a86ddee91be5eaf0b10c333ac64.tar.xz glibc-92f1da4da04a7a86ddee91be5eaf0b10c333ac64.zip |
Update. cvs/libc-ud-970827
1997-08-10 19:17 Philip Blundell <Philip.Blundell@pobox.com> * nss/nss_db/db-XXX.c: Include <db_185.h> not <db.h>. Somebody should update this to use the new db API. * nss/nss_db/db-netgrp.c: Likewise. * nss/nss_db/db-alias.c: Likewise. * db2/Makefile: Makefile for db-2.x in glibc. 1997-08-27 21:20 Ulrich Drepper <drepper@cygnus.com> * csu/Makefile (before-compile): New goal. Make sure abi-tag.h is generated. [$(elf)=yes] (asm-CPPFLAGS): Make sure abi-tag.h file can be found. * Makeconfig [$(build-omitfp)=yes] (CFLAGS-.o): Add -D__USE_STRING_INLINES. * string/string.f: Move strnlen optimization after inclusion of <bits/string.h>. Include <bits/string.h> only if __USE_STRING_INLINES is defined. * sysdeps/generic/memcpy.c: Undef memcpy to allow macro of this name in <bits/string.h>. * sysdeps/generic/memset.c: Likewise. * sysdeps/i386/string.h: i386 optimized string functions. * sysdeps/i386/i486string.h: i486+ optimized string functions. * Makefile (subdirs): Change db to db2. * shlib-versions: Bump libdb verion number to 3. * include/db.h: Include from db2 directory. * include/db_185.h: New file. * sysdeps/i386/Makefile [$(subdirs)=db2] (CPPFLAGS): Add macros to provide spinlock information for db2. * sysdeps/m68k/m68020/Makefile: New file. Likewise. * sysdeps/sparc/Makefile: New file. Likewise. * sysdeps/unix/sysv/linux/Makefile [$(subdirs)=db2] (CPPFLAGS): Add -DHAVE_LLSEEK. * db2/config.h: Hand-edited config file for db2 in glibc. * db2/compat.h: New file from db-2.3.4. * db2/db.h: Likewise. * db2/db_185.h: Likewise. * db2/db_int.h: Likewise. * db2/makedb.c: Likewise. * db2/btree/bt_close.c: Likewise. * db2/btree/bt_compare.c: Likewise. * db2/btree/bt_conv.c: Likewise. * db2/btree/bt_cursor.c: Likewise. * db2/btree/bt_delete.c: Likewise. * db2/btree/bt_open.c: Likewise. * db2/btree/bt_page.c: Likewise. * db2/btree/bt_put.c: Likewise. * db2/btree/bt_rec.c: Likewise. * db2/btree/bt_recno.c: Likewise. * db2/btree/btree_auto.c: Likewise. * db2/btree/bt_rsearch.c: Likewise. * db2/btree/bt_search.c: Likewise. * db2/btree/bt_split.c: Likewise. * db2/btree/bt_stat.c: Likewise. * db2/btree/btree.src: Likewise. * db2/common/db_appinit.c: Likewise. * db2/common/db_err.c: Likewise. * db2/common/db_byteorder.c: Likewise. * db2/common/db_apprec.c: Likewise. * db2/common/db_salloc.c: Likewise. * db2/common/db_log2.c: Likewise. * db2/common/db_region.c: Likewise. * db2/common/db_shash.c: Likewise. * db2/db/db.c: Likewise. * db2/db/db.src: Likewise. * db2/db/db_conv.c: Likewise. * db2/db/db_dispatch.c: Likewise. * db2/db/db_dup.c: Likewise. * db2/db/db_overflow.c: Likewise. * db2/db/db_pr.c: Likewise. * db2/db/db_rec.c: Likewise. * db2/db/db_ret.c: Likewise. * db2/db/db_thread.c: Likewise. * db2/db/db_auto.c: Likewise. * db2/db185/db185.c: Likewise. * db2/db185/db185_int.h: Likewise. * db2/dbm/dbm.c: Likewise. * db2/hash/hash.c: Likewise. * db2/hash/hash.src: Likewise. * db2/hash/hash_page.c: Likewise. * db2/hash/hash_conv.c: Likewise. * db2/hash/hash_debug.c: Likewise. * db2/hash/hash_stat.c: Likewise. * db2/hash/hash_rec.c: Likewise. * db2/hash/hash_dup.c: Likewise. * db2/hash/hash_func.c: Likewise. * db2/hash/hash_auto.c: Likewise. * db2/include/mp.h: Likewise. * db2/include/btree.h: Likewise. * db2/include/db.h.src: Likewise. * db2/include/db_int.h.src: Likewise. * db2/include/db_shash.h: Likewise. * db2/include/db_swap.h: Likewise. * db2/include/db_185.h.src: Likewise. * db2/include/txn.h: Likewise. * db2/include/db_am.h: Likewise. * db2/include/shqueue.h: Likewise. * db2/include/hash.h: Likewise. * db2/include/db_dispatch.h: Likewise. * db2/include/lock.h: Likewise. * db2/include/db_page.h: Likewise. * db2/include/log.h: Likewise. * db2/include/db_auto.h: Likewise. * db2/include/btree_auto.h: Likewise. * db2/include/hash_auto.h: Likewise. * db2/include/log_auto.h: Likewise. * db2/include/txn_auto.h: Likewise. * db2/include/db_ext.h: Likewise. * db2/include/btree_ext.h: Likewise. * db2/include/clib_ext.h: Likewise. * db2/include/common_ext.h: Likewise. * db2/include/hash_ext.h: Likewise. * db2/include/lock_ext.h: Likewise. * db2/include/log_ext.h: Likewise. * db2/include/mp_ext.h: Likewise. * db2/include/mutex_ext.h: Likewise. * db2/include/os_ext.h: Likewise. * db2/include/txn_ext.h: Likewise. * db2/include/cxx_int.h: Likewise. * db2/include/db_cxx.h: Likewise. * db2/include/queue.h: Likewise. * db2/lock/lock.c: Likewise. * db2/lock/lock_conflict.c: Likewise. * db2/lock/lock_util.c: Likewise. * db2/lock/lock_deadlock.c: Likewise. * db2/log/log.c: Likewise. * db2/log/log_get.c: Likewise. * db2/log/log.src: Likewise. * db2/log/log_compare.c: Likewise. * db2/log/log_put.c: Likewise. * db2/log/log_rec.c: Likewise. * db2/log/log_archive.c: Likewise. * db2/log/log_register.c: Likewise. * db2/log/log_auto.c: Likewise. * db2/log/log_findckp.c: Likewise. * db2/mp/mp_bh.c: Likewise. * db2/mp/mp_fget.c: Likewise. * db2/mp/mp_fopen.c: Likewise. * db2/mp/mp_fput.c: Likewise. * db2/mp/mp_fset.c: Likewise. * db2/mp/mp_open.c: Likewise. * db2/mp/mp_region.c: Likewise. * db2/mp/mp_pr.c: Likewise. * db2/mp/mp_sync.c: Likewise. * db2/mutex/68020.gcc: Likewise. * db2/mutex/mutex.c: Likewise. * db2/mutex/README: Likewise. * db2/mutex/x86.gcc: Likewise. * db2/mutex/sparc.gcc: Likewise. * db2/mutex/uts4.cc.s: Likewise. * db2/mutex/alpha.dec: Likewise. * db2/mutex/alpha.gcc: Likewise. * db2/mutex/parisc.gcc: Likewise. * db2/mutex/parisc.hp: Likewise. * db2/os/db_os_abs.c: Likewise. * db2/os/db_os_dir.c: Likewise. * db2/os/db_os_fid.c: Likewise. * db2/os/db_os_lseek.c: Likewise. * db2/os/db_os_mmap.c: Likewise. * db2/os/db_os_open.c: Likewise. * db2/os/db_os_rw.c: Likewise. * db2/os/db_os_sleep.c: Likewise. * db2/os/db_os_stat.c: Likewise. * db2/os/db_os_unlink.c: Likewise. * db2/txn/txn.c: Likewise. * db2/txn/txn.src: Likewise. * db2/txn/txn_rec.c: Likewise. * db2/txn/txn_auto.c: Likewise. * db2/clib/getlong.c: Likewise. * db2/progs/db_archive/db_archive.c: Likewise. * db2/progs/db_checkpoint/db_checkpoint.c: Likewise. * db2/progs/db_deadlock/db_deadlock.c: Likewise. * db2/progs/db_dump/db_dump.c: Likewise. * db2/progs/db_dump185/db_dump185.c: Likewise. * db2/progs/db_load/db_load.c: Likewise. * db2/progs/db_printlog/db_printlog.c: Likewise. * db2/progs/db_recover/db_recover.c: Likewise. * db2/progs/db_stat/db_stat.c: Likewise. * libio/stdio.h [__cplusplus] (__STDIO_INLINE): Define as inline. * po/de.po, po/sv.po: Update from 2.0.5 translations. * sysdeps/unix/sysv/linux/netinet/tcp.h: Pretty print. * sunrpc/rpc/xdr.h (XDR): Don't define argument of x_destroy callback as const. * sunrpc/xdr_mem.c (xdrmem_destroy): Don't define argument as const. * sunrpx/xdr_rec.c (xdrrec_destroy): Likewise. * sunrpx/xdr_stdio.c (xdrstdio_destroy): Likewise. 1997-08-27 18:47 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/if_index.c: Include <errno.h>. Reported by Benjamin Kosnik <bkoz@cygnus.com>. 1997-08-27 02:27 Roland McGrath <roland@baalperazim.frob.com> * abi-tags: New file. * csu/Makefile (distribute): Remove abi-tag.h. ($(objpfx)abi-tag.h): New target. * Makefile (distribute): Add abi-tags. * sysdeps/unix/sysv/linux/abi-tag.h: File removed. * sysdeps/mach/hurd/abi-tag.h: File removed. * sysdeps/stub/abi-tag.h: File removed. 1997-08-25 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/make-syscalls.sh: Change output so that it generates compilation rules only for the currently selected object suffixes. 1997-08-25 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/m68k/dl-machine.h (RTLD_START): Switch back to previous section to avoid confusing the compiler. * sysdeps/alpha/dl-machine.h (RTLD_START): Likewise. * sysdeps/i386/dl-machine.h (RTLD_START): Likewise. * sysdeps/mips/dl-machine.h (RTLD_START): Likewise. * sysdeps/mips/mips64/dl-machine.h (RTLD_START): Likewise. * sysdeps/sparc/sparc32/dl-machine.h (RTLD_START): Likewise. * sysdeps/m68k/dl-machine.h (elf_machine_load_address): Use a GOT relocation instead of a constant to avoid text relocation. (ELF_MACHINE_BEFORE_RTLD_RELOC): Removed. (RTLD_START): Declare global labels as functions and add size directive. 1997-08-25 17:01 Ulrich Drepper <drepper@cygnus.com> * sysdeps/i386/bits/select.h: Correct assembler versions to work even for descriptors >= 32. * stdlib/alloca.h: Don't define alloca to __alloca since if gcc is used __alloca is not defined to __builtin_alloca and so might not be available. Reported by Uwe Ohse <uwe@ohse.de>. * sysdeps/unix/sysv/linux/sys/sysmacros.h: Define macros in a special way if gcc is not used and so dev_t is an array. Reported by Uwe Ohse <uwe@ohse.de>. 1997-08-23 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * manual/libc.texinfo: Reorder chapters to match logical order. 1997-08-25 12:22 Ulrich Drepper <drepper@cygnus.com> * sunrpc/rpc/xdr.h: Change name of parameters in prototypes of xdr_reference, xdrmem_create, and xdrstdio_create because of clash with g++ internal symbols. Patch by Sudish Joseph <sj@eng.mindspring.net>. * elf/dl-deps.c: Implement handling of DT_FILTER.
Diffstat (limited to 'db2/include/log.h')
-rw-r--r-- | db2/include/log.h | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/db2/include/log.h b/db2/include/log.h new file mode 100644 index 0000000000..970dfd153a --- /dev/null +++ b/db2/include/log.h @@ -0,0 +1,157 @@ +/*- + * See the file LICENSE for redistribution information. + * + * Copyright (c) 1996, 1997 + * Sleepycat Software. All rights reserved. + * + * @(#)log.h 10.8 (Sleepycat) 8/18/97 + */ + +#ifndef _LOG_H_ +#define _LOG_H_ + +struct __fname; typedef struct __fname FNAME; +struct __hdr; typedef struct __hdr HDR; +struct __log; typedef struct __log LOG; +struct __log_persist; typedef struct __log_persist LOGP; + +#define MAXLFNAME 99999 /* Maximum log file name. */ +#define LFNAME "log.%05d" /* Log file name template. */ + + /* Default log name. */ +#define DB_DEFAULT_LOG_FILE "__db_log.share" + +#define DEFAULT_MAX (10 * 1048576) /* 10 Mb. */ + +/* Macros to return per-process address, offsets. */ +#define ADDR(base, offset) ((void *)((u_int8_t *)((base)->addr) + offset)) +#define OFFSET(base, p) ((u_int8_t *)(p) - (u_int8_t *)(base)->addr) + +/* Macros to lock/unlock the region and threads. */ +#define LOCK_LOGTHREAD(dblp) \ + if (F_ISSET(dblp, DB_AM_THREAD)) \ + (void)__db_mutex_lock(&(dblp)->mutex, -1, \ + (dblp)->dbenv == NULL ? NULL : (dblp)->dbenv->db_yield) +#define UNLOCK_LOGTHREAD(dblp) \ + if (F_ISSET(dblp, DB_AM_THREAD)) \ + (void)__db_mutex_unlock(&(dblp)->mutex, -1); +#define LOCK_LOGREGION(dblp) \ + (void)__db_mutex_lock(&((RLAYOUT *)(dblp)->lp)->lock, \ + (dblp)->fd, (dblp)->dbenv == NULL ? NULL : (dblp)->dbenv->db_yield) +#define UNLOCK_LOGREGION(dblp) \ + (void)__db_mutex_unlock(&((RLAYOUT *)(dblp)->lp)->lock, (dblp)->fd) + +/* + * The per-process table that maps log file-id's to DB structures. + */ +typedef struct __db_entry { + DB *dbp; /* Associated DB structure. */ + int refcount; /* Reference counted. */ + int deleted; /* File was not found during open. */ +} DB_ENTRY; + +/* + * DB_LOG + * Per-process log structure. + */ +struct __db_log { +/* These fields need to be protected for multi-threaded support. */ + db_mutex_t mutex; /* Mutex for thread protection. */ + + DB_ENTRY *dbentry; /* Recovery file-id mapping. */ +#define DB_GROW_SIZE 64 + u_int32_t dbentry_cnt; /* Entries. Grows by DB_GROW_SIZE. */ + +/* + * These fields are always accessed while the region lock is held, so they do + * not have to be protected by the thread lock as well OR, they are only used + * when threads are not being used, i.e. most cursor operations are disallowed + * on threaded logs. + */ + u_int32_t lfname; /* Log file "name". */ + int lfd; /* Log file descriptor. */ + + DB_LSN c_lsn; /* Cursor: current LSN. */ + DBT c_dbt; /* Cursor: return DBT structure. */ + int c_fd; /* Cursor: file descriptor. */ + u_int32_t c_off; /* Cursor: previous record offset. */ + u_int32_t c_len; /* Cursor: current record length. */ + +/* These fields are not protected. */ + LOG *lp; /* Address of the shared LOG. */ + + DB_ENV *dbenv; /* Reference to error information. */ + + void *maddr; /* Address of mmap'd region. */ + void *addr; /* Address of shalloc() region. */ + int fd; /* Region file descriptor. */ + + u_int32_t flags; /* Support the DB_AM_XXX flags. */ +}; + +/* + * HDR -- + * Log record header. + */ +struct __hdr { + u_int32_t prev; /* Previous offset. */ + u_int32_t cksum; /* Current checksum. */ + u_int32_t len; /* Current length. */ +}; + +struct __log_persist { + u_int32_t magic; /* DB_LOGMAGIC */ + u_int32_t version; /* DB_LOGVERSION */ + + u_int32_t lg_max; /* Maximum file size. */ + int mode; /* Log file mode. */ +}; + +/* + * LOG -- + * Shared log region. One of these is allocated in shared memory, + * and describes the log. + */ +struct __log { + RLAYOUT rlayout; /* General region information. */ + + LOGP persist; /* Persistent information. */ + + SH_TAILQ_HEAD(__fq) fq; /* List of file names. */ + + DB_LSN lsn; /* LSN at current file offset. */ + DB_LSN c_lsn; /* LSN of the last checkpoint. */ + DB_LSN s_lsn; /* LSN of the last sync. */ + DB_LSN span_lsn; /* LSN spanning buffer write. */ + + u_int32_t len; /* Length of the last record. */ + + size_t b_off; /* Current offset in the buffer. */ + u_int32_t w_off; /* Current write offset in the file. */ + + time_t chkpt; /* Time of the last checkpoint. */ + u_int32_t written; /* Bytes written since checkpoint. */ + + u_int8_t buf[4 * 1024]; /* Log buffer. */ +}; + +/* + * FNAME -- + * File name and id. + */ +struct __fname { + SH_TAILQ_ENTRY q; /* File name queue. */ + + u_int16_t ref; /* Reference count. */ + + u_int32_t id; /* Logging file id. */ + DBTYPE s_type; /* Saved DB type. */ + + u_int32_t fileid_off; /* Unique file id offset. */ + + size_t name_off; /* Name offset. */ +}; + +#include "log_auto.h" +#include "log_ext.h" +#endif /* _LOG_H_ */ |