home *** CD-ROM | disk | FTP | other *** search
- /*-
- * See the file LICENSE for redistribution information.
- *
- * Copyright (c) 1996, 1997, 1998
- * Sleepycat Software. All rights reserved.
- *
- * @(#)db.h 10.174 (Sleepycat) 1/3/99
- */
-
- #ifndef _DB_H_
- #define _DB_H_
-
- #ifndef __NO_SYSTEM_INCLUDES
- #include <sys/types.h>
-
- #include <stdio.h>
- #endif
-
- /*
- * XXX
- * MacOS: ensure that Metrowerks C makes enumeration types int sized.
- */
- #ifdef __MWERKS__
- #pragma enumsalwaysint on
- #endif
-
- /*
- * XXX
- * Handle function prototypes and the keyword "const". This steps on name
- * space that DB doesn't control, but all of the other solutions are worse.
- *
- * XXX
- * While Microsoft's compiler is ANSI C compliant, it doesn't have _STDC_
- * defined by default, you specify a command line flag or #pragma to turn
- * it on. Don't do that, however, because some of Microsoft's own header
- * files won't compile.
- */
- #undef __P
- #if defined(__STDC__) || defined(__cplusplus) || defined(_MSC_VER)
- #define __P(protos) protos /* ANSI C prototypes */
- #else
- #define const
- #define __P(protos) () /* K&R C preprocessor */
- #endif
-
- /*
- * !!!
- * DB needs basic information about specifically sized types. If they're
- * not provided by the system, typedef them here.
- *
- * We protect them against multiple inclusion using __BIT_TYPES_DEFINED__,
- * as does BIND and Kerberos, since we don't know for sure what #include
- * files the user is using.
- *
- * !!!
- * We also provide the standard u_int, u_long etc., if they're not provided
- * by the system.
- */
- #ifndef __BIT_TYPES_DEFINED__
- #define __BIT_TYPES_DEFINED__
-
-
-
-
-
- #endif
-
-
-
-
-
-
- #define DB_VERSION_MAJOR 2
- #define DB_VERSION_MINOR 7
- #define DB_VERSION_PATCH 7
- #define DB_VERSION_STRING "Sleepycat Software: Berkeley DB 2.7.7: (08/20/99)"
-
- typedef u_int32_t db_pgno_t; /* Page number type. */
- typedef u_int16_t db_indx_t; /* Page offset type. */
- #define DB_MAX_PAGES 0xffffffff /* >= # of pages in a file */
-
- typedef u_int32_t db_recno_t; /* Record number type. */
- #define DB_MAX_RECORDS 0xffffffff /* >= # of records in a tree */
-
- typedef size_t DB_LOCK; /* Object returned by lock manager. */
-
- /* Forward structure declarations, so applications get type checking. */
- struct __db; typedef struct __db DB;
- #ifdef DB_DBM_HSEARCH
- typedef struct __db DBM;
- #endif
- struct __db_bt_stat; typedef struct __db_bt_stat DB_BTREE_STAT;
- struct __db_dbt; typedef struct __db_dbt DBT;
- struct __db_env; typedef struct __db_env DB_ENV;
- struct __db_ilock; typedef struct __db_ilock DB_LOCK_ILOCK;
- struct __db_info; typedef struct __db_info DB_INFO;
- struct __db_lock_stat; typedef struct __db_lock_stat DB_LOCK_STAT;
- struct __db_lockregion; typedef struct __db_lockregion DB_LOCKREGION;
- struct __db_lockreq; typedef struct __db_lockreq DB_LOCKREQ;
- struct __db_locktab; typedef struct __db_locktab DB_LOCKTAB;
- struct __db_log; typedef struct __db_log DB_LOG;
- struct __db_log_stat; typedef struct __db_log_stat DB_LOG_STAT;
- struct __db_lsn; typedef struct __db_lsn DB_LSN;
- struct __db_mpool; typedef struct __db_mpool DB_MPOOL;
- struct __db_mpool_finfo;typedef struct __db_mpool_finfo DB_MPOOL_FINFO;
- struct __db_mpool_fstat;typedef struct __db_mpool_fstat DB_MPOOL_FSTAT;
- struct __db_mpool_stat; typedef struct __db_mpool_stat DB_MPOOL_STAT;
- struct __db_mpoolfile; typedef struct __db_mpoolfile DB_MPOOLFILE;
- struct __db_txn; typedef struct __db_txn DB_TXN;
- struct __db_txn_active; typedef struct __db_txn_active DB_TXN_ACTIVE;
- struct __db_txn_stat; typedef struct __db_txn_stat DB_TXN_STAT;
- struct __db_txnmgr; typedef struct __db_txnmgr DB_TXNMGR;
- struct __db_txnregion; typedef struct __db_txnregion DB_TXNREGION;
- struct __dbc; typedef struct __dbc DBC;
-
- /* Key/data structure -- a Data-Base Thang. */
- struct __db_dbt {
- void *data; /* key/data */
- u_int32_t size; /* key/data length */
- u_int32_t ulen; /* RO: length of user buffer. */
- u_int32_t dlen; /* RO: get/put record length. */
- u_int32_t doff; /* RO: get/put record offset. */
-
- #define DB_DBT_INTERNAL 0x01 /* Ignore user's malloc (internal). */
- #define DB_DBT_MALLOC 0x02 /* Return in allocated memory. */
- #define DB_DBT_PARTIAL 0x04 /* Partial put/get. */
- #define DB_DBT_USERMEM 0x08 /* Return in user's memory. */
- u_int32_t flags;
- };
-
- /*
- * DB run-time interface configuration.
- *
- * There are a set of functions that the application can replace with its
- * own versions, and some other knobs which can be turned at run-time.
- */
- #define DB_FUNC_CLOSE 1 /* POSIX 1003.1 close. */
- #define DB_FUNC_DIRFREE 2 /* DB: free directory list. */
- #define DB_FUNC_DIRLIST 3 /* DB: create directory list. */
- #define DB_FUNC_EXISTS 4 /* DB: return if file exists. */
- #define DB_FUNC_FREE 5 /* ANSI C free. */
- #define DB_FUNC_FSYNC 6 /* POSIX 1003.1 fsync. */
- #define DB_FUNC_IOINFO 7 /* DB: return file I/O information. */
- #define DB_FUNC_MALLOC 8 /* ANSI C malloc. */
- #define DB_FUNC_MAP 9 /* DB: map file into shared memory. */
- #define DB_FUNC_OPEN 10 /* POSIX 1003.1 open. */
- #define DB_FUNC_READ 11 /* POSIX 1003.1 read. */
- #define DB_FUNC_REALLOC 12 /* ANSI C realloc. */
- #define DB_FUNC_RUNLINK 13 /* DB: remove a shared region. */
- #define DB_FUNC_SEEK 14 /* POSIX 1003.1 lseek. */
- #define DB_FUNC_SLEEP 15 /* DB: sleep secs/usecs. */
- #define DB_FUNC_UNLINK 16 /* POSIX 1003.1 unlink. */
- #define DB_FUNC_UNMAP 17 /* DB: unmap shared memory file. */
- #define DB_FUNC_WRITE 18 /* POSIX 1003.1 write. */
- #define DB_FUNC_YIELD 19 /* DB: yield thread to scheduler. */
- #define DB_MUTEXLOCKS 20 /* DB: turn off all mutex locks. */
- #define DB_PAGEYIELD 21 /* DB: yield the CPU on pool get. */
- #define DB_REGION_ANON 22 /* DB: anonymous, unnamed regions. */
- #define DB_REGION_INIT 23 /* DB: page-fault regions in create. */
- #define DB_REGION_NAME 24 /* DB: anonymous, named regions. */
- #define DB_TSL_SPINS 25 /* DB: initialize spin count. */
-
- /*
- * Database configuration and initialization.
- */
- /*
- * Flags understood by both db_open(3) and db_appinit(3).
- */
- #define DB_CREATE 0x000001 /* O_CREAT: create file as necessary. */
- #define DB_NOMMAP 0x000002 /* Don't mmap underlying file. */
- #define DB_THREAD 0x000004 /* Free-thread DB package handles. */
-
- /*
- * Flags understood by db_appinit(3).
- */
- /* 0x000007 COMMON MASK. */
- #define DB_INIT_CDB 0x000008 /* Concurrent Access Methods. */
- #define DB_INIT_LOCK 0x000010 /* Initialize locking. */
- #define DB_INIT_LOG 0x000020 /* Initialize logging. */
- #define DB_INIT_MPOOL 0x000040 /* Initialize mpool. */
- #define DB_INIT_TXN 0x000080 /* Initialize transactions. */
- #define DB_MPOOL_PRIVATE 0x000100 /* Mpool: private memory pool. */
- #define DB_RECOVER 0x000200 /* Run normal recovery. */
- #define DB_RECOVER_FATAL 0x000400 /* Run catastrophic recovery. */
- #define DB_TXN_NOSYNC 0x000800 /* Do not sync log on commit. */
- #define DB_USE_ENVIRON 0x001000 /* Use the environment. */
- #define DB_USE_ENVIRON_ROOT 0x002000 /* Use the environment if root. */
-
- /*
- * Flags understood by db_open(3).
- *
- * DB_EXCL and DB_TEMPORARY are internal only, and are not documented.
- * DB_SEQUENTIAL is currently internal, but may be exported some day.
- */
- /* 0x000007 COMMON MASK. */
- /* 0x001fff ALREADY USED. */
- #define DB_EXCL 0x002000 /* O_EXCL: exclusive open (internal). */
- #define DB_RDONLY 0x004000 /* O_RDONLY: read-only. */
- #define DB_SEQUENTIAL 0x008000 /* Sequential access (internal). */
- #define DB_TEMPORARY 0x010000 /* Remove on last close (internal). */
- #define DB_TRUNCATE 0x020000 /* O_TRUNCATE: replace existing DB. */
- #define DB_FCNTL_LOCKING 0x040000 /* Undocumented: fcntl(2) locking. */
-
- /*
- * Deadlock detector modes; used in the DBENV structure to configure the
- * locking subsystem.
- */
- #define DB_LOCK_NORUN 0
- #define DB_LOCK_DEFAULT 1 /* Default policy. */
- #define DB_LOCK_OLDEST 2 /* Abort oldest transaction. */
- #define DB_LOCK_RANDOM 3 /* Abort random transaction. */
- #define DB_LOCK_YOUNGEST 4 /* Abort youngest transaction. */
-
- struct __db_env {
- int db_lorder; /* Byte order. */
-
- /* Error message callback. */
- void (*db_errcall) __P((const char *, char *));
- FILE *db_errfile; /* Error message file stream. */
- const char *db_errpfx; /* Error message prefix. */
- int db_verbose; /* Generate debugging messages. */
- int db_panic; /* Panic flag, callback function. */
- void (*db_paniccall) __P((DB_ENV *, int));
-
- /* User paths. */
- char *db_home; /* Database home. */
- char *db_log_dir; /* Database log file directory. */
- char *db_tmp_dir; /* Database tmp file directory. */
-
- char **db_data_dir; /* Database data file directories. */
- int data_cnt; /* Database data file slots. */
- int data_next; /* Next Database data file slot. */
-
- /* Locking. */
- DB_LOCKTAB *lk_info; /* Return from lock_open(). */
- const u_int8_t *lk_conflicts; /* Two dimensional conflict matrix. */
- u_int32_t lk_modes; /* Number of lock modes in table. */
- u_int32_t lk_max; /* Maximum number of locks. */
- u_int32_t lk_detect; /* Deadlock detect on all conflicts. */
-
- /* Logging. */
- DB_LOG *lg_info; /* Return from log_open(). */
- u_int32_t lg_max; /* Maximum file size. */
-
- /* Memory pool. */
- DB_MPOOL *mp_info; /* Return from memp_open(). */
- size_t mp_mmapsize; /* Maximum file size for mmap. */
- size_t mp_size; /* Bytes in the mpool cache. */
-
- /* Transactions. */
- DB_TXNMGR *tx_info; /* Return from txn_open(). */
- u_int32_t tx_max; /* Maximum number of transactions. */
- int (*tx_recover) /* Dispatch function for recovery. */
- __P((DB_LOG *, DBT *, DB_LSN *, int, void *));
-
- /*
- * XA support.
- *
- * !!!
- * Explicit representations of structures in queue.h.
- *
- * TAILQ_ENTRY(__db_env);
- */
- struct {
- struct __db_env *tqe_next;
- struct __db_env **tqe_prev;
- } links;
- int xa_rmid; /* XA Resource Manager ID. */
- DB_TXN *xa_txn; /* XA Current transaction. */
-
- #define DB_ENV_APPINIT 0x01 /* Paths initialized by db_appinit(). */
- #define DB_ENV_CDB 0x02 /* Concurrent DB product. */
- #define DB_ENV_STANDALONE 0x04 /* Test: freestanding environment. */
- #define DB_ENV_THREAD 0x08 /* DB_ENV is multi-threaded. */
- u_int32_t flags; /* Flags. */
- };
-
- /*******************************************************
- * Access methods.
- *******************************************************/
- /*
- * !!!
- * Changes here must be reflected in java/src/com/sleepycat/db/Db.java.
- */
- typedef enum {
- DB_BTREE=1, /* B+tree. */
- DB_HASH, /* Extended Linear Hashing. */
- DB_RECNO, /* Fixed and variable-length records. */
- DB_UNKNOWN /* Figure it out on open. */
- } DBTYPE;
-
- #define DB_BTREEVERSION 6 /* Current btree version. */
- #define DB_BTREEOLDVER 6 /* Oldest btree version supported. */
- #define DB_BTREEMAGIC 0x053162
-
- #define DB_HASHVERSION 5 /* Current hash version. */
- #define DB_HASHOLDVER 4 /* Oldest hash version supported. */
- #define DB_HASHMAGIC 0x061561
-
- #define DB_LOGVERSION 2 /* Current log version. */
- #define DB_LOGOLDVER 2 /* Oldest log version supported. */
- #define DB_LOGMAGIC 0x040988
-
- struct __db_info {
- int db_lorder; /* Byte order. */
- size_t db_cachesize; /* Underlying cache size. */
- size_t db_pagesize; /* Underlying page size. */
-
- /* Local heap allocation. */
- void *(*db_malloc) __P((size_t));
- int (*dup_compare) /* Duplicate compare function. */
- __P((const DBT *, const DBT *));
-
- /* Btree access method. */
- u_int32_t bt_maxkey; /* Maximum keys per page. */
- u_int32_t bt_minkey; /* Minimum keys per page. */
- int (*bt_compare) /* Comparison function. */
- __P((const DBT *, const DBT *));
- size_t (*bt_prefix) /* Prefix function. */
- __P((const DBT *, const DBT *));
-
- /* Hash access method. */
- u_int32_t h_ffactor; /* Fill factor. */
- u_int32_t h_nelem; /* Number of elements. */
- u_int32_t (*h_hash) /* Hash function. */
- __P((const void *, u_int32_t));
-
- /* Recno access method. */
- int re_pad; /* Fixed-length padding byte. */
- int re_delim; /* Variable-length delimiting byte. */
- u_int32_t re_len; /* Length for fixed-length records. */
- char *re_source; /* Source file name. */
-
- #define DB_DELIMITER 0x0001 /* Recno: re_delim set. */
- #define DB_DUP 0x0002 /* Btree, Hash: duplicate keys. */
- #define DB_DUPSORT 0x0004 /* Btree, Hash: duplicate keys. */
- #define DB_FIXEDLEN 0x0008 /* Recno: fixed-length records. */
- #define DB_PAD 0x0010 /* Recno: re_pad set. */
- #define DB_RECNUM 0x0020 /* Btree: record numbers. */
- #define DB_RENUMBER 0x0040 /* Recno: renumber on insert/delete. */
- #define DB_SNAPSHOT 0x0080 /* Recno: snapshot the input. */
- u_int32_t flags;
- };
-
- /*
- * DB access method and cursor operation values. Each value is an operation
- * code to which additional bit flags are added.
- */
- #define DB_AFTER 1 /* c_put() */
- #define DB_APPEND 2 /* put() */
- #define DB_BEFORE 3 /* c_put() */
- #define DB_CHECKPOINT 4 /* log_put(), log_get() */
- #define DB_CURLSN 5 /* log_put() */
- #define DB_CURRENT 6 /* c_get(), c_put(), log_get() */
- #define DB_FIRST 7 /* c_get(), log_get() */
- #define DB_FLUSH 8 /* log_put() */
- #define DB_GET_BOTH 9 /* get(), c_get() */
- #define DB_GET_RECNO 10 /* c_get() */
- #define DB_JOIN_ITEM 11 /* c_get(); do not do primary lookup */
- #define DB_KEYFIRST 12 /* c_put() */
- #define DB_KEYLAST 13 /* c_put() */
- #define DB_LAST 14 /* c_get(), log_get() */
- #define DB_NEXT 15 /* c_get(), log_get() */
- #define DB_NEXT_DUP 16 /* c_get() */
- #define DB_NOOVERWRITE 17 /* put() */
- #define DB_NOSYNC 18 /* close() */
- #define DB_PREV 19 /* c_get(), log_get() */
- #define DB_RECORDCOUNT 20 /* stat() */
- #define DB_SET 21 /* c_get(), log_get() */
- #define DB_SET_RANGE 22 /* c_get() */
- #define DB_SET_RECNO 23 /* get(), c_get() */
- #define DB_WRITELOCK 24 /* cursor() (internal) */
-
- #define DB_OPFLAGS_MASK 0x1f /* Mask for operations flags. */
- #define DB_RMW 0x80000000 /* Acquire write flag immediately. */
-
- /*
- * DB (user visible) error return codes.
- *
- * !!!
- * Changes to any of the user visible error return codes must be reflected
- * in java/src/com/sleepycat/db/Db.java.
- */
- #define DB_INCOMPLETE ( -1) /* Sync didn't finish. */
- #define DB_KEYEMPTY ( -2) /* The key/data pair was deleted or
- was never created by the user. */
- #define DB_KEYEXIST ( -3) /* The key/data pair already exists. */
- #define DB_LOCK_DEADLOCK ( -4) /* Locker killed to resolve deadlock. */
- #define DB_LOCK_NOTGRANTED ( -5) /* Lock unavailable, no-wait set. */
- #define DB_LOCK_NOTHELD ( -6) /* Lock not held by locker. */
- #define DB_NOTFOUND ( -7) /* Key/data pair not found (EOF). */
- #define DB_RUNRECOVERY ( -8) /* Panic return. */
-
- /* DB (private) error return codes. */
- #define DB_DELETED ( -9) /* Recovery file marked deleted. */
- #define DB_NEEDSPLIT (-10) /* Page needs to be split. */
- #define DB_SWAPBYTES (-11) /* Database needs byte swapping. */
- #define DB_TXN_CKP (-12) /* Encountered ckp record in log. */
-
- #define DB_FILE_ID_LEN 20 /* DB file ID length. */
-
- /* DB access method description structure. */
- struct __db {
- void *mutexp; /* Synchronization for free threading */
-
- /* Documented, returned information. */
- DBTYPE type; /* DB access method. */
- int byteswapped; /* Database byte order is swapped. */
- int saved_open_fd; /* For fcntl lock preservation. */
-
- DB_ENV *dbenv; /* DB_ENV structure. */
- DB_ENV *mp_dbenv; /* DB_ENV for local mpool creation. */
-
- void *internal; /* Access method private. */
-
- DB_MPOOL *mp; /* The access method's mpool. */
- DB_MPOOLFILE *mpf; /* The access method's mpool file. */
-
- /*
- * !!!
- * Explicit representations of structures in queue.h.
- *
- * TAILQ_HEAD(free_queue, __dbc);
- * TAILQ_HEAD(active_queue, __dbc);
- */
- struct {
- struct __dbc *tqh_first;
- struct __dbc **tqh_last;
- } free_queue;
- struct {
- struct __dbc *tqh_first;
- struct __dbc **tqh_last;
- } active_queue;
-
- u_int8_t fileid[DB_FILE_ID_LEN]; /* Uniquely identify this file for
- locking. */
- u_int32_t log_fileid; /* Logging file id. */
- size_t pgsize; /* Logical page size of file. */
-
- /* Local heap allocation. */
- void *(*db_malloc) __P((size_t));
- int (*dup_compare) /* Duplicate compare function. */
- __P((const DBT *, const DBT *));
- u_int32_t (*h_hash) /* Hash function. */
- __P((const void *, u_int32_t));
-
- /* Functions. */
- int (*am_close) __P((DB *));
- int (*close) __P((DB *, u_int32_t));
- int (*cursor) __P((DB *, DB_TXN *, DBC **, u_int32_t));
- int (*del) __P((DB *, DB_TXN *, DBT *, u_int32_t));
- int (*fd) __P((DB *, int *));
- int (*get) __P((DB *, DB_TXN *, DBT *, DBT *, u_int32_t));
- int (*join) __P((DB *, DBC **, u_int32_t, DBC **));
- int (*put) __P((DB *, DB_TXN *, DBT *, DBT *, u_int32_t));
- int (*stat) __P((DB *, void *, void *(*)(size_t), u_int32_t));
- int (*sync) __P((DB *, u_int32_t));
-
- #define DB_AM_CDB 0x000001 /* Concurrent Access Methods. */
- #define DB_AM_DUP 0x000002 /* DB_DUP (internal). */
- #define DB_AM_INMEM 0x000004 /* In-memory; no sync on close. */
- #define DB_AM_LOCKING 0x000008 /* Perform locking. */
- #define DB_AM_LOGGING 0x000010 /* Perform logging. */
- #define DB_AM_MLOCAL 0x000020 /* Database memory pool is local. */
- #define DB_AM_PGDEF 0x000040 /* Page size was defaulted. */
- #define DB_AM_RDONLY 0x000080 /* Database is readonly. */
- #define DB_AM_SWAP 0x000100 /* Pages need to be byte-swapped. */
- #define DB_AM_THREAD 0x000200 /* DB is multi-threaded. */
- #define DB_BT_RECNUM 0x000400 /* DB_RECNUM (internal). */
- #define DB_DBM_ERROR 0x000800 /* Error in DBM/NDBM database. */
- #define DB_RE_DELIMITER 0x001000 /* DB_DELIMITER (internal). */
- #define DB_RE_FIXEDLEN 0x002000 /* DB_FIXEDLEN (internal). */
- #define DB_RE_PAD 0x004000 /* DB_PAD (internal). */
- #define DB_RE_RENUMBER 0x008000 /* DB_RENUMBER (internal). */
- #define DB_RE_SNAPSHOT 0x010000 /* DB_SNAPSHOT (internal). */
- u_int32_t flags;
- };
-
- struct __db_ilock { /* Internal DB access method lock. */
- db_pgno_t pgno; /* Page being locked. */
- u_int8_t fileid[DB_FILE_ID_LEN];/* File id. */
- };
-
- /* Cursor description structure. */
- struct __dbc {
- DB *dbp; /* Related DB access method. */
- DB_TXN *txn; /* Associated transaction. */
-
- /*
- * !!!
- * Explicit representations of structures in queue.h.
- *
- * TAILQ_ENTRY(__dbc);
- */
- struct {
- struct __dbc *tqe_next;
- struct __dbc **tqe_prev;
- } links;
-
- u_int32_t lid; /* Default process' locker id. */
- u_int32_t locker; /* Locker for this operation. */
- DBT lock_dbt; /* DBT referencing lock. */
- DB_LOCK_ILOCK lock; /* Object to be locked. */
- DB_LOCK mylock; /* Lock held on this cursor. */
-
- DBT rkey; /* Returned key. */
- DBT rdata; /* Returned data. */
-
- int (*c_am_close) __P((DBC *));
- int (*c_am_destroy) __P((DBC *));
- int (*c_close) __P((DBC *));
- int (*c_del) __P((DBC *, u_int32_t));
- int (*c_get) __P((DBC *, DBT *, DBT *, u_int32_t));
- int (*c_put) __P((DBC *, DBT *, DBT *, u_int32_t));
-
- void *internal; /* Access method private. */
-
- #define DBC_CONTINUE 0x001 /* Continue dup search: next item. */
- #define DBC_KEYSET 0x002 /* Continue dup search: current item. */
- #define DBC_RECOVER 0x004 /* In recovery (do not log or lock). */
- #define DBC_RMW 0x008 /* Acquire write flag in read op. */
- #define DBC_WRITER 0x010 /* Cursor immediately writing (CDB). */
- u_int32_t flags;
- };
-
- /* Btree/recno statistics structure. */
- struct __db_bt_stat {
- u_int32_t bt_flags; /* Open flags. */
- u_int32_t bt_maxkey; /* Maxkey value. */
- u_int32_t bt_minkey; /* Minkey value. */
- u_int32_t bt_re_len; /* Fixed-length record length. */
- u_int32_t bt_re_pad; /* Fixed-length record pad. */
- u_int32_t bt_pagesize; /* Page size. */
- u_int32_t bt_levels; /* Tree levels. */
- u_int32_t bt_nrecs; /* Number of records. */
- u_int32_t bt_int_pg; /* Internal pages. */
- u_int32_t bt_leaf_pg; /* Leaf pages. */
- u_int32_t bt_dup_pg; /* Duplicate pages. */
- u_int32_t bt_over_pg; /* Overflow pages. */
- u_int32_t bt_free; /* Pages on the free list. */
- u_int32_t bt_int_pgfree; /* Bytes free in internal pages. */
- u_int32_t bt_leaf_pgfree; /* Bytes free in leaf pages. */
- u_int32_t bt_dup_pgfree; /* Bytes free in duplicate pages. */
- u_int32_t bt_over_pgfree; /* Bytes free in overflow pages. */
- u_int32_t bt_magic; /* Magic number. */
- u_int32_t bt_version; /* Version number. */
- };
-
- /* Hash statistics structure. */
- struct __db_h_stat {
- u_int32_t hash_accesses; /* Number of accesses to this table. */
- u_int32_t hash_collisions; /* Number of collisions on search. */
- u_int32_t hash_expansions; /* Number of times we added a bucket. */
- u_int32_t hash_overflows; /* Number of overflow pages. */
- u_int32_t hash_bigpages; /* Number of big key/data pages. */
- u_int32_t hash_dup; /* Number of dup pages. */
- u_int32_t hash_free; /* Pages on the free list. */
- u_int32_t hash_bfree; /* Bytes free on bucket pages. */
- u_int32_t hash_dup_free; /* Bytes free on duplicate pages. */
- u_int32_t hash_big_bfree; /* Bytes free on big item pages. */
- u_int32_t hash_buckets; /* Number of hash buckets. */
- u_int32_t hash_put; /* Number of puts. */
- u_int32_t hash_deleted; /* Number of deletes. */
- u_int32_t hash_get; /* Number of gets. */
- u_int32_t hash_magic; /* Magic number. */
- u_int32_t hash_version; /* Version number. */
- u_int32_t hash_pagesize; /* Page size. */
- u_int32_t hash_nrecs; /* Number of records. */
- };
-
- #if defined(__cplusplus)
- extern "C" {
- #endif
- int db_appinit __P((const char *, char * const *, DB_ENV *, u_int32_t));
- int db_appexit __P((DB_ENV *));
- int db_jump_set __P((void *, int));
- int db_open __P((const char *,
- DBTYPE, u_int32_t, int, DB_ENV *, DB_INFO *, DB **));
- int db_value_set __P((int, int));
- char *db_version __P((int *, int *, int *));
- int db_xa_open __P((const char *,
- DBTYPE, u_int32_t, int, DB_INFO *, DB **));
- #if defined(__cplusplus)
- }
- #endif
-
- /*******************************************************
- * Locking
- *******************************************************/
- #define DB_LOCKVERSION 1
- #define DB_LOCKMAGIC 0x090193
-
- /* Flag values for lock_vec(), lock_get(). */
- #define DB_LOCK_NOWAIT 0x01 /* Don't wait on unavailable lock. */
- #define DB_LOCK_UPGRADE 0x02 /* Upgrade an existing lock instead
- of granting a new one (internal). */
-
- /* Flag values for lock_detect(). */
- #define DB_LOCK_CONFLICT 0x01 /* Run on any conflict. */
-
- /*
- * Request types.
- *
- * !!!
- * Changes here must be reflected in java/src/com/sleepycat/db/Db.java.
- */
- typedef enum {
- DB_LOCK_DUMP=0, /* Display held locks. */
- DB_LOCK_GET, /* Get the lock. */
- DB_LOCK_INHERIT, /* Pass locks to parent. */
- DB_LOCK_PUT, /* Release the lock. */
- DB_LOCK_PUT_ALL, /* Release locker's locks. */
- DB_LOCK_PUT_OBJ /* Release locker's locks on obj. */
- } db_lockop_t;
-
- /*
- * Simple R/W lock modes and for multi-granularity intention locking.
- *
- * !!!
- * These values are NOT random, as they are used as an index into the lock
- * conflicts arrays, i.e., DB_LOCK_IWRITE must be == 3, and DB_LOCK_IREAD
- * must be == 4.
- *
- * !!!
- * Changes here must be reflected in java/src/com/sleepycat/db/Db.java.
- */
- typedef enum {
- DB_LOCK_NG=0, /* Not granted. */
- DB_LOCK_READ, /* Shared/read. */
- DB_LOCK_WRITE, /* Exclusive/write. */
- DB_LOCK_IWRITE, /* Intent exclusive/write. */
- DB_LOCK_IREAD, /* Intent to share/read. */
- DB_LOCK_IWR /* Intent to read and write. */
- } db_lockmode_t;
-
- /*
- * Status of a lock.
- */
- typedef enum {
- DB_LSTAT_ABORTED, /* Lock belongs to an aborted txn. */
- DB_LSTAT_ERR, /* Lock is bad. */
- DB_LSTAT_FREE, /* Lock is unallocated. */
- DB_LSTAT_HELD, /* Lock is currently held. */
- DB_LSTAT_NOGRANT, /* Lock was not granted. */
- DB_LSTAT_PENDING, /* Lock was waiting and has been
- * promoted; waiting for the owner
- * to run and upgrade it to held. */
- DB_LSTAT_WAITING /* Lock is on the wait queue. */
- } db_status_t;
-
- /* Lock request structure. */
- struct __db_lockreq {
- db_lockop_t op; /* Operation. */
- db_lockmode_t mode; /* Requested mode. */
- u_int32_t locker; /* Locker identity. */
- DBT *obj; /* Object being locked. */
- DB_LOCK lock; /* Lock returned. */
- };
-
- /*
- * Commonly used conflict matrices.
- *
- * Standard Read/Write (or exclusive/shared) locks.
- */
- #define DB_LOCK_RW_N 3
- extern const u_int8_t db_rw_conflicts[];
-
- /* Multi-granularity locking. */
- #define DB_LOCK_RIW_N 6
- extern const u_int8_t db_riw_conflicts[];
-
- struct __db_lock_stat {
- u_int32_t st_magic; /* Lock file magic number. */
- u_int32_t st_version; /* Lock file version number. */
- u_int32_t st_maxlocks; /* Maximum number of locks in table. */
- u_int32_t st_nmodes; /* Number of lock modes. */
- u_int32_t st_numobjs; /* Number of objects. */
- u_int32_t st_nlockers; /* Number of lockers. */
- u_int32_t st_nconflicts; /* Number of lock conflicts. */
- u_int32_t st_nrequests; /* Number of lock gets. */
- u_int32_t st_nreleases; /* Number of lock puts. */
- u_int32_t st_ndeadlocks; /* Number of lock deadlocks. */
- u_int32_t st_region_wait; /* Region lock granted after wait. */
- u_int32_t st_region_nowait; /* Region lock granted without wait. */
- u_int32_t st_refcnt; /* Region reference count. */
- u_int32_t st_regsize; /* Region size. */
- };
-
- #if defined(__cplusplus)
- extern "C" {
- #endif
- int lock_close __P((DB_LOCKTAB *));
- int lock_detect __P((DB_LOCKTAB *, u_int32_t, u_int32_t));
- int lock_get __P((DB_LOCKTAB *,
- u_int32_t, u_int32_t, const DBT *, db_lockmode_t, DB_LOCK *));
- int lock_id __P((DB_LOCKTAB *, u_int32_t *));
- int lock_open __P((const char *,
- u_int32_t, int, DB_ENV *, DB_LOCKTAB **));
- int lock_put __P((DB_LOCKTAB *, DB_LOCK));
- int lock_tget __P((DB_LOCKTAB *,
- DB_TXN *, u_int32_t, const DBT *, db_lockmode_t, DB_LOCK *));
- int lock_stat __P((DB_LOCKTAB *, DB_LOCK_STAT **, void *(*)(size_t)));
- int lock_unlink __P((const char *, int, DB_ENV *));
- int lock_vec __P((DB_LOCKTAB *,
- u_int32_t, u_int32_t, DB_LOCKREQ *, int, DB_LOCKREQ **));
- int lock_tvec __P((DB_LOCKTAB *,
- DB_TXN *, u_int32_t, DB_LOCKREQ *, int, DB_LOCKREQ **));
- #if defined(__cplusplus)
- }
- #endif
-
- /*******************************************************
- * Logging.
- *******************************************************/
- /* Flag values for log_archive(). */
- #define DB_ARCH_ABS 0x001 /* Absolute pathnames. */
- #define DB_ARCH_DATA 0x002 /* Data files. */
- #define DB_ARCH_LOG 0x004 /* Log files. */
-
- /*
- * A DB_LSN has two parts, a fileid which identifies a specific file, and an
- * offset within that file. The fileid is an unsigned 4-byte quantity that
- * uniquely identifies a file within the log directory -- currently a simple
- * counter inside the log. The offset is also an unsigned 4-byte value. The
- * log manager guarantees the offset is never more than 4 bytes by switching
- * to a new log file before the maximum length imposed by an unsigned 4-byte
- * offset is reached.
- */
- struct __db_lsn {
- u_int32_t file; /* File ID. */
- u_int32_t offset; /* File offset. */
- };
-
- /* Log statistics structure. */
- struct __db_log_stat {
- u_int32_t st_magic; /* Log file magic number. */
- u_int32_t st_version; /* Log file version number. */
- int st_mode; /* Log file mode. */
- u_int32_t st_lg_max; /* Maximum log file size. */
- u_int32_t st_w_bytes; /* Bytes to log. */
- u_int32_t st_w_mbytes; /* Megabytes to log. */
- u_int32_t st_wc_bytes; /* Bytes to log since checkpoint. */
- u_int32_t st_wc_mbytes; /* Megabytes to log since checkpoint. */
- u_int32_t st_wcount; /* Total syncs to the log. */
- u_int32_t st_scount; /* Total writes to the log. */
- u_int32_t st_region_wait; /* Region lock granted after wait. */
- u_int32_t st_region_nowait; /* Region lock granted without wait. */
- u_int32_t st_cur_file; /* Current log file number. */
- u_int32_t st_cur_offset; /* Current log file offset. */
- u_int32_t st_refcnt; /* Region reference count. */
- u_int32_t st_regsize; /* Region size. */
- };
-
- #if defined(__cplusplus)
- extern "C" {
- #endif
- int log_archive __P((DB_LOG *, char **[], u_int32_t, void *(*)(size_t)));
- int log_close __P((DB_LOG *));
- int log_compare __P((const DB_LSN *, const DB_LSN *));
- int log_file __P((DB_LOG *, const DB_LSN *, char *, size_t));
- int log_flush __P((DB_LOG *, const DB_LSN *));
- int log_get __P((DB_LOG *, DB_LSN *, DBT *, u_int32_t));
- int log_open __P((const char *, u_int32_t, int, DB_ENV *, DB_LOG **));
- int log_put __P((DB_LOG *, DB_LSN *, const DBT *, u_int32_t));
- int log_register __P((DB_LOG *, DB *, const char *, DBTYPE, u_int32_t *));
- int log_stat __P((DB_LOG *, DB_LOG_STAT **, void *(*)(size_t)));
- int log_unlink __P((const char *, int, DB_ENV *));
- int log_unregister __P((DB_LOG *, u_int32_t));
- #if defined(__cplusplus)
- }
- #endif
-
- /*******************************************************
- * Mpool
- *******************************************************/
- /* Flag values for memp_fget(). */
- #define DB_MPOOL_CREATE 0x001 /* Create a page. */
- #define DB_MPOOL_LAST 0x002 /* Return the last page. */
- #define DB_MPOOL_NEW 0x004 /* Create a new page. */
-
- /* Flag values for memp_fput(), memp_fset(). */
- #define DB_MPOOL_CLEAN 0x001 /* Clear modified bit. */
- #define DB_MPOOL_DIRTY 0x002 /* Page is modified. */
- #define DB_MPOOL_DISCARD 0x004 /* Don't cache the page. */
-
- /* Mpool statistics structure. */
- struct __db_mpool_stat {
- size_t st_cachesize; /* Cache size. */
- u_int32_t st_cache_hit; /* Pages found in the cache. */
- u_int32_t st_cache_miss; /* Pages not found in the cache. */
- u_int32_t st_map; /* Pages from mapped files. */
- u_int32_t st_page_create; /* Pages created in the cache. */
- u_int32_t st_page_in; /* Pages read in. */
- u_int32_t st_page_out; /* Pages written out. */
- u_int32_t st_ro_evict; /* Clean pages forced from the cache. */
- u_int32_t st_rw_evict; /* Dirty pages forced from the cache. */
- u_int32_t st_hash_buckets; /* Number of hash buckets. */
- u_int32_t st_hash_searches; /* Total hash chain searches. */
- u_int32_t st_hash_longest; /* Longest hash chain searched. */
- u_int32_t st_hash_examined; /* Total hash entries searched. */
- u_int32_t st_page_clean; /* Clean pages. */
- u_int32_t st_page_dirty; /* Dirty pages. */
- u_int32_t st_page_trickle; /* Pages written by memp_trickle. */
- u_int32_t st_region_wait; /* Region lock granted after wait. */
- u_int32_t st_region_nowait; /* Region lock granted without wait. */
- u_int32_t st_refcnt; /* Region reference count. */
- u_int32_t st_regsize; /* Region size. */
- };
-
- /* Mpool file open information structure. */
- struct __db_mpool_finfo {
- int ftype; /* File type. */
- DBT *pgcookie; /* Byte-string passed to pgin/pgout. */
- u_int8_t *fileid; /* Unique file ID. */
- int32_t lsn_offset; /* LSN offset in page. */
- u_int32_t clear_len; /* Cleared length on created pages. */
- };
-
- /* Mpool file statistics structure. */
- struct __db_mpool_fstat {
- char *file_name; /* File name. */
- size_t st_pagesize; /* Page size. */
- u_int32_t st_cache_hit; /* Pages found in the cache. */
- u_int32_t st_cache_miss; /* Pages not found in the cache. */
- u_int32_t st_map; /* Pages from mapped files. */
- u_int32_t st_page_create; /* Pages created in the cache. */
- u_int32_t st_page_in; /* Pages read in. */
- u_int32_t st_page_out; /* Pages written out. */
- };
-
- #if defined(__cplusplus)
- extern "C" {
- #endif
- int memp_close __P((DB_MPOOL *));
- int memp_fclose __P((DB_MPOOLFILE *));
- int memp_fget __P((DB_MPOOLFILE *, db_pgno_t *, u_int32_t, void *));
- int memp_fopen __P((DB_MPOOL *, const char *,
- u_int32_t, int, size_t, DB_MPOOL_FINFO *, DB_MPOOLFILE **));
- int memp_fput __P((DB_MPOOLFILE *, void *, u_int32_t));
- int memp_fset __P((DB_MPOOLFILE *, void *, u_int32_t));
- int memp_fsync __P((DB_MPOOLFILE *));
- int memp_open __P((const char *, u_int32_t, int, DB_ENV *, DB_MPOOL **));
- int memp_register __P((DB_MPOOL *, int,
- int (*)(db_pgno_t, void *, DBT *),
- int (*)(db_pgno_t, void *, DBT *)));
- int memp_stat __P((DB_MPOOL *,
- DB_MPOOL_STAT **, DB_MPOOL_FSTAT ***, void *(*)(size_t)));
- int memp_sync __P((DB_MPOOL *, DB_LSN *));
- int memp_trickle __P((DB_MPOOL *, int, int *));
- int memp_unlink __P((const char *, int, DB_ENV *));
- #if defined(__cplusplus)
- }
- #endif
-
- /*******************************************************
- * Transactions.
- *******************************************************/
- #define DB_TXNVERSION 1
- #define DB_TXNMAGIC 0x041593
-
- /* Operations values to the tx_recover() function. */
- #define DB_TXN_BACKWARD_ROLL 1 /* Read the log backwards. */
- #define DB_TXN_FORWARD_ROLL 2 /* Read the log forwards. */
- #define DB_TXN_OPENFILES 3 /* Read for open files. */
- #define DB_TXN_REDO 4 /* Redo the operation. */
- #define DB_TXN_UNDO 5 /* Undo the operation. */
-
- /* Internal transaction status values. */
-
- /* Transaction statistics structure. */
- struct __db_txn_active {
- u_int32_t txnid; /* Transaction ID */
- DB_LSN lsn; /* Lsn of the begin record */
- };
-
- struct __db_txn_stat {
- DB_LSN st_last_ckp; /* lsn of the last checkpoint */
- DB_LSN st_pending_ckp; /* last checkpoint did not finish */
- time_t st_time_ckp; /* time of last checkpoint */
- u_int32_t st_last_txnid; /* last transaction id given out */
- u_int32_t st_maxtxns; /* maximum number of active txns */
- u_int32_t st_naborts; /* number of aborted transactions */
- u_int32_t st_nbegins; /* number of begun transactions */
- u_int32_t st_ncommits; /* number of committed transactions */
- u_int32_t st_nactive; /* number of active transactions */
- DB_TXN_ACTIVE
- *st_txnarray; /* array of active transactions */
- u_int32_t st_region_wait; /* Region lock granted after wait. */
- u_int32_t st_region_nowait; /* Region lock granted without wait. */
- u_int32_t st_refcnt; /* Region reference count. */
- u_int32_t st_regsize; /* Region size. */
- };
-
- #if defined(__cplusplus)
- extern "C" {
- #endif
- int txn_abort __P((DB_TXN *));
- int txn_begin __P((DB_TXNMGR *, DB_TXN *, DB_TXN **));
- int txn_checkpoint __P((const DB_TXNMGR *, u_int32_t, u_int32_t));
- int txn_commit __P((DB_TXN *));
- int txn_close __P((DB_TXNMGR *));
- u_int32_t txn_id __P((DB_TXN *));
- int txn_open __P((const char *, u_int32_t, int, DB_ENV *, DB_TXNMGR **));
- int txn_prepare __P((DB_TXN *));
- int txn_stat __P((DB_TXNMGR *, DB_TXN_STAT **, void *(*)(size_t)));
- int txn_unlink __P((const char *, int, DB_ENV *));
- #if defined(__cplusplus)
- }
- #endif
-
- #ifndef DB_DBM_HSEARCH
- #define DB_DBM_HSEARCH 0 /* No historic interfaces by default. */
- #endif
- #if DB_DBM_HSEARCH != 0
- /*******************************************************
- * Dbm/Ndbm historic interfaces.
- *******************************************************/
- #define DBM_INSERT 0 /* Flags to dbm_store(). */
- #define DBM_REPLACE 1
-
- /*
- * The db(3) support for ndbm(3) always appends this suffix to the
- * file name to avoid overwriting the user's original database.
- */
- #define DBM_SUFFIX ".db"
-
- #if defined(_XPG4_2)
- typedef struct {
- char *dptr;
- size_t dsize;
- } datum;
- #else
- typedef struct {
- char *dptr;
- int dsize;
- } datum;
- #endif
-
- /*
- * Translate DBM calls into DB calls so that DB doesn't step on the
- * application's name space.
- *
- * The global variables dbrdonly, dirf and pagf were not retained when
- * 4BSD replaced the dbm interface with ndbm, and are not support here.
- */
- #define dbminit(a) __db_dbm_init(a)
- #define dbmclose __db_dbm_close
- #if !defined(__cplusplus)
- #define delete(a) __db_dbm_delete(a)
- #endif
- #define fetch(a) __db_dbm_fetch(a)
- #define firstkey __db_dbm_firstkey
- #define nextkey(a) __db_dbm_nextkey(a)
- #define store(a, b) __db_dbm_store(a, b)
-
- /* Prototype the DB calls. */
- #if defined(__cplusplus)
- extern "C" {
- #endif
- int __db_dbm_close __P((void));
- int __db_dbm_dbrdonly __P((void));
- int __db_dbm_delete __P((datum));
- int __db_dbm_dirf __P((void));
- datum __db_dbm_fetch __P((datum));
- datum __db_dbm_firstkey __P((void));
- int __db_dbm_init __P((char *));
- datum __db_dbm_nextkey __P((datum));
- int __db_dbm_pagf __P((void));
- int __db_dbm_store __P((datum, datum));
- #if defined(__cplusplus)
- }
- #endif
-
- /*
- * Translate NDBM calls into DB calls so that DB doesn't step on the
- * application's name space.
- */
- #define dbm_clearerr(a) __db_ndbm_clearerr(a)
- #define dbm_close(a) __db_ndbm_close(a)
- #define dbm_delete(a, b) __db_ndbm_delete(a, b)
- #define dbm_dirfno(a) __db_ndbm_dirfno(a)
- #define dbm_error(a) __db_ndbm_error(a)
- #define dbm_fetch(a, b) __db_ndbm_fetch(a, b)
- #define dbm_firstkey(a) __db_ndbm_firstkey(a)
- #define dbm_nextkey(a) __db_ndbm_nextkey(a)
- #define dbm_open(a, b, c) __db_ndbm_open(a, b, c)
- #define dbm_pagfno(a) __db_ndbm_pagfno(a)
- #define dbm_rdonly(a) __db_ndbm_rdonly(a)
- #define dbm_store(a, b, c, d) __db_ndbm_store(a, b, c, d)
-
- /* Prototype the DB calls. */
- #if defined(__cplusplus)
- extern "C" {
- #endif
- int __db_ndbm_clearerr __P((DBM *));
- void __db_ndbm_close __P((DBM *));
- int __db_ndbm_delete __P((DBM *, datum));
- int __db_ndbm_dirfno __P((DBM *));
- int __db_ndbm_error __P((DBM *));
- datum __db_ndbm_fetch __P((DBM *, datum));
- datum __db_ndbm_firstkey __P((DBM *));
- datum __db_ndbm_nextkey __P((DBM *));
- DBM *__db_ndbm_open __P((const char *, int, int));
- int __db_ndbm_pagfno __P((DBM *));
- int __db_ndbm_rdonly __P((DBM *));
- int __db_ndbm_store __P((DBM *, datum, datum, int));
- #if defined(__cplusplus)
- }
- #endif
-
- /*******************************************************
- * Hsearch historic interface.
- *******************************************************/
- typedef enum {
- FIND, ENTER
- } ACTION;
-
- typedef struct entry {
- char *key;
- char *data;
- } ENTRY;
-
- /*
- * Translate HSEARCH calls into DB calls so that DB doesn't step on the
- * application's name space.
- */
- #define hcreate(a) __db_hcreate(a)
- #define hdestroy __db_hdestroy
- #define hsearch(a, b) __db_hsearch(a, b)
-
- /* Prototype the DB calls. */
- #if defined(__cplusplus)
- extern "C" {
- #endif
- int __db_hcreate __P((size_t));
- void __db_hdestroy __P((void));
- ENTRY *__db_hsearch __P((ENTRY, ACTION));
- #if defined(__cplusplus)
- }
- #endif
- #endif /* DB_DBM_HSEARCH */
-
- /*
- * XXX
- * MacOS: Reset Metrowerks C enum sizes.
- */
- #ifdef __MWERKS__
- #pragma enumsalwaysint reset
- #endif
- #endif /* !_DB_H_ */
-