http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/db4/db.h

/* * See the file LICENSE for redistribution information. * * Copyright (c) 1996-2004 * Sleepycat Software. All rights reserved. * * $Id: db.in,v 11.463 2004/10/11 18:47:50 bostic Exp $ * * db.h include file layout: * General. * Database Environment. * Locking subsystem. * Logging subsystem. * Shared buffer cache (mpool) subsystem. * Transaction subsystem. * Access methods. * Access method cursors. * Dbm/Ndbm, Hsearch historic interfaces. */ #ifndef _DB_H_ #define _DB_H_ #ifndef __NO_SYSTEM_INCLUDES #include <sys/types.h> #include <inttypes.h> #include <stdint.h> #include <stddef.h> #include <stdio.h> #endif #if defined(__cplusplus) extern "C" { #endif #undef __P #define __P(protos) protos /* * Berkeley DB version information. */ #define DB_VERSION_MAJOR 4 #define DB_VERSION_MINOR 3 #define DB_VERSION_PATCH 29 #define DB_VERSION_STRING "Sleepycat Software: Berkeley DB 4.3.29: (June 16, 2006)" /* * !!! * Berkeley DB uses 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 /* * uintmax_t -- * Largest unsigned type, used to align structures in memory. We don't store * floating point types in structures, so integral types should be sufficient * (and we don't have to worry about systems that store floats in other than * power-of-2 numbers of bytes). Additionally this fixes compilers that rewrite * structure assignments and ANSI C memcpy calls to be in-line instructions * that happen to require alignment. Note: this alignment isn't sufficient for * mutexes, which depend on things like cache line alignment. Mutex alignment * is handled separately, in mutex.h. * * uintptr_t -- * Unsigned type that's the same size as a pointer. There are places where * DB modifies pointers by discarding the bottom bits to guarantee alignment. * We can't use uintmax_t, it may be larger than the pointer, and compilers * get upset about that. So far we haven't run on any machine where there's * no unsigned type the same size as a pointer -- here's hoping. */ /* * Sequences are only available on machines with 64-bit integral types. */ typedef int64_t db_seq_t; /* Basic types that are exported or quasi-exported. */ 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 u_int32_t db_timeout_t; /* Type of a timeout. */ /* * Region offsets are the difference between a pointer in a region and the * region's base address. With private environments, both addresses are the * result of calling malloc, and we can't assume anything about what malloc * will return, so region offsets have to be able to hold differences between * arbitrary pointers. */ typedef uintptr_t roff_t; /* * Forward structure declarations, so we can declare pointers and * applications can get type checking. */ struct __db; typedef struct __db DB; struct __db_bt_stat; typedef struct __db_bt_stat DB_BTREE_STAT; struct __db_cipher; typedef struct __db_cipher DB_CIPHER; struct __db_dbt; typedef struct __db_dbt DBT; struct __db_env; typedef struct __db_env DB_ENV; struct __db_h_stat; typedef struct __db_h_stat DB_HASH_STAT; struct __db_ilock; typedef struct __db_ilock DB_LOCK_ILOCK; struct __db_lock_stat; typedef struct __db_lock_stat DB_LOCK_STAT; struct __db_lock_u; typedef struct __db_lock_u DB_LOCK; struct __db_lockreq; typedef struct __db_lockreq DB_LOCKREQ; struct __db_log_cursor; typedef struct __db_log_cursor DB_LOGC; 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_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_preplist; typedef struct __db_preplist DB_PREPLIST; struct __db_qam_stat; typedef struct __db_qam_stat DB_QUEUE_STAT; struct __db_rep; typedef struct __db_rep DB_REP; struct __db_rep_stat; typedef struct __db_rep_stat DB_REP_STAT; struct __db_sequence; typedef struct __db_sequence DB_SEQUENCE; struct __db_seq_record; typedef struct __db_seq_record DB_SEQ_RECORD; struct __db_seq_stat; typedef struct __db_seq_stat DB_SEQUENCE_STAT; 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 __dbc; typedef struct __dbc DBC; struct __dbc_internal; typedef struct __dbc_internal DBC_INTERNAL; struct __fh_t; typedef struct __fh_t DB_FH; struct __fname; typedef struct __fname FNAME; struct __key_range; typedef struct __key_range DB_KEY_RANGE; struct __mpoolfile; typedef struct __mpoolfile MPOOLFILE; struct __mutex_t; typedef struct __mutex_t DB_MUTEX; /* Key/data structure -- a Data-Base Thang. */ struct __db_dbt { /* * data/size must be fields 1 and 2 for DB 1.85 compatibility. */ 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_APPMALLOC 0x001 /* Callback allocated memory. */ #define DB_DBT_ISSET 0x002 /* Lower level calls set value. */ #define DB_DBT_MALLOC 0x004 /* Return in malloc'd memory. */ #define DB_DBT_PARTIAL 0x008 /* Partial put/get. */ #define DB_DBT_REALLOC 0x010 /* Return in realloc'd memory. */ #define DB_DBT_USERMEM 0x020 /* Return in user's memory. */ #define DB_DBT_DUPOK 0x040 /* Insert if duplicate. */ u_int32_t flags; }; /* * Common flags -- * Interfaces which use any of these common flags should never have * interface specific flags in this range. */ #define DB_CREATE 0x0000001 /* Create file as necessary. */ #define DB_CXX_NO_EXCEPTIONS 0x0000002 /* C++: return error values. */ #define DB_FORCE 0x0000004 /* Force (anything). */ #define DB_NOMMAP 0x0000008 /* Don't mmap underlying file. */ #define DB_RDONLY 0x0000010 /* Read-only (O_RDONLY). */ #define DB_RECOVER 0x0000020 /* Run normal recovery. */ #define DB_THREAD 0x0000040 /* Applications are threaded. */ #define DB_TRUNCATE 0x0000080 /* Discard existing DB (O_TRUNC). */ #define DB_TXN_NOSYNC 0x0000100 /* Do not sync log on commit. */ #define DB_TXN_NOT_DURABLE 0x0000200 /* Do not log changes. */ #define DB_USE_ENVIRON 0x0000400 /* Use the environment. */ #define DB_USE_ENVIRON_ROOT 0x0000800 /* Use the environment if root. */ /* * Common flags -- * Interfaces which use any of these common flags should never have * interface specific flags in this range. * * DB_AUTO_COMMIT: * DB_ENV->set_flags, DB->associate, DB->del, DB->put, DB->open, * DB->remove, DB->rename, DB->truncate * DB_DEGREE_2: * DB->cursor, DB->get, DB->join, DBcursor->c_get, DB_ENV->txn_begin * DB_DIRTY_READ: * DB->cursor, DB->get, DB->join, DB->open, DBcursor->c_get, * DB_ENV->txn_begin * DB_NOAUTO_COMMIT * DB->associate, DB->del, DB->put, DB->open, * DB->remove, DB->rename, DB->truncate * * !!! * The DB_DIRTY_READ and DB_DEGREE_2 bit masks can't be changed without * also changing the masks for the flags that can be OR'd into DB * access method and cursor operation values. */ #define DB_AUTO_COMMIT 0x01000000/* Implied transaction. */ #define DB_DEGREE_2 0x02000000/* Degree 2. */ #define DB_DIRTY_READ 0x04000000/* Dirty Read. */ #define DB_NO_AUTO_COMMIT 0x08000000/* Override env-wide AUTOCOMMIT. */ /* * Flags private to db_env_create. */ #define DB_RPCCLIENT 0x0000001 /* An RPC client environment. */ /* * Flags private to db_create. */ #define DB_REP_CREATE 0x0000001 /* Open of an internal rep database. */ #define DB_XA_CREATE 0x0000002 /* Open in an XA environment. */ /* * Flags private to DB_ENV->open. * Shared flags up to 0x0000800 */ #define DB_INIT_CDB 0x0001000 /* Concurrent Access Methods. */ #define DB_INIT_LOCK 0x0002000 /* Initialize locking. */ #define DB_INIT_LOG 0x0004000 /* Initialize logging. */ #define DB_INIT_MPOOL 0x0008000 /* Initialize mpool. */ #define DB_INIT_REP 0x0010000 /* Initialize replication. */ #define DB_INIT_TXN 0x0020000 /* Initialize transactions. */ #define DB_JOINENV 0x0040000 /* Initialize all subsystems present. */ #define DB_LOCKDOWN 0x0080000 /* Lock memory into physical core. */ #define DB_PRIVATE 0x0100000 /* DB_ENV is process local. */ #define DB_RECOVER_FATAL 0x0200000 /* Run catastrophic recovery. */ #define DB_SYSTEM_MEM 0x0400000 /* Use system-backed memory. */ /* * Flags private to DB->open. * Shared flags up to 0x0000800 */ #define DB_EXCL 0x0001000 /* Exclusive open (O_EXCL). */ #define DB_FCNTL_LOCKING 0x0002000 /* UNDOC: fcntl(2) locking. */ #define DB_RDWRMASTER 0x0004000 /* UNDOC: allow subdb master open R/W */ #define DB_WRITEOPEN 0x0008000 /* UNDOC: open with write lock. */ /* * Flags private to DB_ENV->txn_begin. * Shared flags up to 0x0000800 */ #define DB_TXN_NOWAIT 0x0001000 /* Do not wait for locks in this TXN. */ #define DB_TXN_SYNC 0x0002000 /* Always sync log on commit. */ /* * Flags private to DB_ENV->set_encrypt. */ #define DB_ENCRYPT_AES 0x0000001 /* AES, assumes SHA1 checksum */ /* * Flags private to DB_ENV->set_flags. * Shared flags up to 0x00000800 */ #define DB_CDB_ALLDB 0x00001000/* Set CDB locking per environment. */ #define DB_DIRECT_DB 0x00002000/* Don't buffer databases in the OS. */ #define DB_DIRECT_LOG 0x00004000/* Don't buffer log files in the OS. */ #define DB_DSYNC_LOG 0x00008000/* Set O_DSYNC on the log. */ #define DB_LOG_AUTOREMOVE 0x00010000/* Automatically remove log files. */ #define DB_LOG_INMEMORY 0x00020000/* Store logs in buffers in memory. */ #define DB_NOLOCKING 0x00040000/* Set locking/mutex behavior. */ #define DB_NOPANIC 0x00080000/* Set panic state per DB_ENV. */ #define DB_OVERWRITE 0x00100000/* Overwrite unlinked region files. */ #define DB_PANIC_ENVIRONMENT 0x00200000/* Set panic state per environment. */ #define DB_REGION_INIT 0x00400000/* Page-fault regions on open. */ #define DB_TIME_NOTGRANTED 0x00800000/* Return NOTGRANTED on timeout. */ /* Shared flags at 0x01000000 */ /* Shared flags at 0x02000000 */ /* Shared flags at 0x04000000 */ /* Shared flags at 0x08000000 */ #define DB_TXN_WRITE_NOSYNC 0x10000000/* Write, don't sync, on txn commit. */ #define DB_YIELDCPU 0x20000000/* Yield the CPU (a lot). */ /* * Flags private to DB->set_feedback's callback. */ #define DB_UPGRADE 0x0000001 /* Upgrading. */ #define DB_VERIFY 0x0000002 /* Verifying. */ /* * Flags private to DB_MPOOLFILE->open. * Shared flags up to 0x0000800 */ #define DB_DIRECT 0x0001000 /* Don't buffer the file in the OS. */ #define DB_DURABLE_UNKNOWN 0x0002000 /* internal: durability on open. */ #define DB_EXTENT 0x0004000 /* internal: dealing with an extent. */ #define DB_ODDFILESIZE 0x0008000 /* Truncate file to N * pgsize. */ /* * Flags private to DB->set_flags. */ #define DB_CHKSUM 0x0000001 /* Do checksumming */ #define DB_DUP 0x0000002 /* Btree, Hash: duplicate keys. */ #define DB_DUPSORT 0x0000004 /* Btree, Hash: duplicate keys. */ #define DB_ENCRYPT 0x0000008 /* Btree, Hash: duplicate keys. */ #define DB_INORDER 0x0000010 /* Queue: strict ordering on consume. */ #define DB_RECNUM 0x0000020 /* Btree: record numbers. */ #define DB_RENUMBER 0x0000040 /* Recno: renumber on insert/delete. */ #define DB_REVSPLITOFF 0x0000080 /* Btree: turn off reverse splits. */ #define DB_SNAPSHOT 0x0000100 /* Recno: snapshot the input. */ /* * Flags private to the DB_ENV->stat_print, DB->stat and DB->stat_print methods. */ #define DB_STAT_ALL 0x0000001 /* Print: Everything. */ #define DB_STAT_CLEAR 0x0000002 /* Clear stat after returning values. */ #define DB_STAT_LOCK_CONF 0x0000004 /* Print: Lock conflict matrix. */ #define DB_STAT_LOCK_LOCKERS 0x0000008 /* Print: Lockers. */ #define DB_STAT_LOCK_OBJECTS 0x0000010 /* Print: Lock objects. */ #define DB_STAT_LOCK_PARAMS 0x0000020 /* Print: Lock parameters. */ #define DB_STAT_MEMP_HASH 0x0000040 /* Print: Mpool hash buckets. */ #define DB_STAT_SUBSYSTEM 0x0000080 /* Print: Subsystems too. */ /* * Flags private to DB->join. */ #define DB_JOIN_NOSORT 0x0000001 /* Don't try to optimize join. */ /* * Flags private to DB->verify. */ #define DB_AGGRESSIVE 0x0000001 /* Salvage whatever could be data.*/ #define DB_NOORDERCHK 0x0000002 /* Skip sort order/hashing check. */ #define DB_ORDERCHKONLY 0x0000004 /* Only perform the order check. */ #define DB_PR_PAGE 0x0000008 /* Show page contents (-da). */ #define DB_PR_RECOVERYTEST 0x0000010 /* Recovery test (-dr). */ #define DB_PRINTABLE 0x0000020 /* Use printable format for salvage. */ #define DB_SALVAGE 0x0000040 /* Salvage what looks like data. */ #define DB_UNREF 0x0000080 /* Report unreferenced pages. */ /* * !!! * These must not go over 0x8000, or they will collide with the flags * used by __bam_vrfy_subtree. */ /* * Flags private to DB->set_rep_transport's send callback. */ #define DB_REP_NOBUFFER 0x0000001 /* Do not buffer this message. */ #define DB_REP_PERMANENT 0x0000002 /* Important--app. may want to flush. */ /******************************************************* * Locking. *******************************************************/ #define DB_LOCKVERSION 1 #define DB_FILE_ID_LEN 20 /* Unique file ID length. */ /* * Deadlock detector modes; used in the DB_ENV structure to configure the * locking subsystem. */ #define DB_LOCK_NORUN 0 #define DB_LOCK_DEFAULT 1 /* Default policy. */ #define DB_LOCK_EXPIRE 2 /* Only expire locks, no detection. */ #define DB_LOCK_MAXLOCKS 3 /* Select locker with max locks. */ #define DB_LOCK_MAXWRITE 4 /* Select locker with max writelocks. */ #define DB_LOCK_MINLOCKS 5 /* Select locker with min locks. */ #define DB_LOCK_MINWRITE 6 /* Select locker with min writelocks. */ #define DB_LOCK_OLDEST 7 /* Select oldest locker. */ #define DB_LOCK_RANDOM 8 /* Select random locker. */ #define DB_LOCK_YOUNGEST 9 /* Select youngest locker. */ /* Flag values for lock_vec(), lock_get(). */ #define DB_LOCK_ABORT 0x001 /* Internal: Lock during abort. */ #define DB_LOCK_NOWAIT 0x002 /* Don't wait on unavailable lock. */ #define DB_LOCK_RECORD 0x004 /* Internal: record lock. */ #define DB_LOCK_REMOVE 0x008 /* Internal: flag object removed. */ #define DB_LOCK_SET_TIMEOUT 0x010 /* Internal: set lock timeout. */ #define DB_LOCK_SWITCH 0x020 /* Internal: switch existing lock. */ #define DB_LOCK_UPGRADE 0x040 /* Internal: upgrade existing lock. */ /* * 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. */ typedef enum { DB_LOCK_NG=0, /* Not granted. */ DB_LOCK_READ=1, /* Shared/read. */ DB_LOCK_WRITE=2, /* Exclusive/write. */ DB_LOCK_WAIT=3, /* Wait for event */ DB_LOCK_IWRITE=4, /* Intent exclusive/write. */ DB_LOCK_IREAD=5, /* Intent to share/read. */ DB_LOCK_IWR=6, /* Intent to read and write. */ DB_LOCK_DIRTY=7, /* Dirty Read. */ DB_LOCK_WWRITE=8 /* Was Written. */ } db_lockmode_t; /* * Request types. */ typedef enum { DB_LOCK_DUMP=0, /* Display held locks. */ DB_LOCK_GET=1, /* Get the lock. */ DB_LOCK_GET_TIMEOUT=2, /* Get lock with a timeout. */ DB_LOCK_INHERIT=3, /* Pass locks to parent. */ DB_LOCK_PUT=4, /* Release the lock. */ DB_LOCK_PUT_ALL=5, /* Release locker's locks. */ DB_LOCK_PUT_OBJ=6, /* Release locker's locks on obj. */ DB_LOCK_PUT_READ=7, /* Release locker's read locks. */ DB_LOCK_TIMEOUT=8, /* Force a txn to timeout. */ DB_LOCK_TRADE=9, /* Trade locker ids on a lock. */ DB_LOCK_UPGRADE_WRITE=10 /* Upgrade writes for dirty reads. */ } db_lockop_t; /* * Status of a lock. */ typedef enum { DB_LSTAT_ABORTED=1, /* Lock belongs to an aborted txn. */ DB_LSTAT_EXPIRED=2, /* Lock has expired. */ DB_LSTAT_FREE=3, /* Lock is unallocated. */ DB_LSTAT_HELD=4, /* Lock is currently held. */ DB_LSTAT_NOTEXIST=5, /* Object on which lock was waiting * was removed */ DB_LSTAT_PENDING=6, /* Lock was waiting and has been * promoted; waiting for the owner * to run and upgrade it to held. */ DB_LSTAT_WAITING=7 /* Lock is on the wait queue. */ }db_status_t; /* Lock statistics structure. */ struct __db_lock_stat { u_int32_t st_id; /* Last allocated locker ID. */ u_int32_t st_cur_maxid; /* Current maximum unused ID. */ u_int32_t st_maxlocks; /* Maximum number of locks in table. */ u_int32_t st_maxlockers; /* Maximum num of lockers in table. */ u_int32_t st_maxobjects; /* Maximum num of objects in table. */ int st_nmodes; /* Number of lock modes. */ u_int32_t st_nlocks; /* Current number of locks. */ u_int32_t st_maxnlocks; /* Maximum number of locks so far. */ u_int32_t st_nlockers; /* Current number of lockers. */ u_int32_t st_maxnlockers; /* Maximum number of lockers so far. */ u_int32_t st_nobjects; /* Current number of objects. */ u_int32_t st_maxnobjects; /* Maximum number of objects so far. */ 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_nnowaits; /* Number of requests that would have waited, but NOWAIT was set. */ u_int32_t st_ndeadlocks; /* Number of lock deadlocks. */ db_timeout_t st_locktimeout; /* Lock timeout. */ u_int32_t st_nlocktimeouts; /* Number of lock timeouts. */ db_timeout_t st_txntimeout; /* Transaction timeout. */ u_int32_t st_ntxntimeouts; /* Number of transaction timeouts. */ u_int32_t st_region_wait; /* Region lock granted after wait. */ u_int32_t st_region_nowait; /* Region lock granted without wait. */ roff_t st_regsize; /* Region size. */ }; /* * DB_LOCK_ILOCK -- * Internal DB access method lock. */ struct __db_ilock { db_pgno_t pgno; /* Page being locked. */ u_int8_t fileid[DB_FILE_ID_LEN];/* File id. */ #define DB_HANDLE_LOCK 1 #define DB_RECORD_LOCK 2 #define DB_PAGE_LOCK 3 u_int32_t type; /* Type of lock. */ }; /* * DB_LOCK -- * The structure is allocated by the caller and filled in during a * lock_get request (or a lock_vec/DB_LOCK_GET). */ struct __db_lock_u { roff_t off; /* Offset of the lock in the region */ u_int32_t ndx; /* Index of the object referenced by * this lock; used for locking. */ u_int32_t gen; /* Generation number of this lock. */ db_lockmode_t mode; /* mode of this lock. */ }; /* Lock request structure. */ struct __db_lockreq { db_lockop_t op; /* Operation. */ db_lockmode_t mode; /* Requested mode. */ db_timeout_t timeout; /* Time to expire lock. */ DBT *obj; /* Object being locked. */ DB_LOCK lock; /* Lock returned. */ }; /******************************************************* * Logging. *******************************************************/ #define DB_LOGVERSION 10 /* Current log version. */ #define DB_LOGOLDVER 10 /* Oldest log version supported. */ #define DB_LOGMAGIC 0x040988 /* Flag values for DB_ENV->log_archive(). */ #define DB_ARCH_ABS 0x001 /* Absolute pathnames. */ #define DB_ARCH_DATA 0x002 /* Data files. */ #define DB_ARCH_LOG 0x004 /* Log files. */ #define DB_ARCH_REMOVE 0x008 /* Remove log files. */ /* Flag values for DB_ENV->log_put(). */ #define DB_FLUSH 0x001 /* Flush data to disk (public). */ #define DB_LOG_CHKPNT 0x002 /* Flush supports a checkpoint */ #define DB_LOG_COMMIT 0x004 /* Flush supports a commit */ #define DB_LOG_NOCOPY 0x008 /* Don't copy data */ #define DB_LOG_NOT_DURABLE 0x010 /* Do not log; keep in memory */ #define DB_LOG_PERM 0x020 /* Flag record with REP_PERMANENT */ #define DB_LOG_RESEND 0x040 /* Resent log record */ #define DB_LOG_WRNOSYNC 0x080 /* Write, don't sync log_put */ /* * 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. */ }; /* * Application-specified log record types start at DB_user_BEGIN, and must not * equal or exceed DB_debug_FLAG. * * DB_debug_FLAG is the high-bit of the u_int32_t that specifies a log record * type. If the flag is set, it's a log record that was logged for debugging * purposes only, even if it reflects a database change -- the change was part * of a non-durable transaction. */ #define DB_user_BEGIN 10000 #define DB_debug_FLAG 0x80000000 /* * DB_LOGC -- * Log cursor. */ struct __db_log_cursor { DB_ENV *dbenv; /* Enclosing dbenv. */ DB_FH *c_fhp; /* File handle. */ DB_LSN c_lsn; /* Cursor: LSN */ u_int32_t c_len; /* Cursor: record length */ u_int32_t c_prev; /* Cursor: previous record's offset */ DBT c_dbt; /* Return DBT. */ #define DB_LOGC_BUF_SIZE (32 * 1024) u_int8_t *bp; /* Allocated read buffer. */ u_int32_t bp_size; /* Read buffer length in bytes. */ u_int32_t bp_rlen; /* Read buffer valid data length. */ DB_LSN bp_lsn; /* Read buffer first byte LSN. */ u_int32_t bp_maxrec; /* Max record length in the log file. */ /* Methods. */ int (*close) __P((DB_LOGC *, u_int32_t)); int (*get) __P((DB_LOGC *, DB_LSN *, DBT *, u_int32_t)); #define DB_LOG_DISK 0x01 /* Log record came from disk. */ #define DB_LOG_LOCKED 0x02 /* Log region already locked */ #define DB_LOG_SILENT_ERR 0x04 /* Turn-off error messages. */ u_int32_t flags; }; /* 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_bsize; /* Log buffer size. */ u_int32_t st_lg_size; /* 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 writes to the log. */ u_int32_t st_wcount_fill; /* Overflow writes to the log. */ u_int32_t st_scount; /* Total syncs 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_disk_file; /* Known on disk log file number. */ u_int32_t st_disk_offset; /* Known on disk log file offset. */ roff_t st_regsize; /* Region size. */ u_int32_t st_maxcommitperflush; /* Max number of commits in a flush. */ u_int32_t st_mincommitperflush; /* Min number of commits in a flush. */ }; /* * We need to record the first log record of a transaction. * For user defined logging this macro returns the place to * put that information, if it is need in rlsnp, otherwise it * leaves it unchanged. */ #define DB_SET_BEGIN_LSNP(txn, rlsnp) ((txn)->set_begin_lsnp(txn, rlsnp)) /******************************************************* * Shared buffer cache (mpool). *******************************************************/ /* Flag values for DB_MPOOLFILE->get. */ #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 DB_MPOOLFILE->put, DB_MPOOLFILE->set. */ #define DB_MPOOL_CLEAN 0x001 /* Page is not modified. */ #define DB_MPOOL_DIRTY 0x002 /* Page is modified. */ #define DB_MPOOL_DISCARD 0x004 /* Don't cache the page. */ #define DB_MPOOL_FREE 0x008 /* Free page if present. */ /* Flags values for DB_MPOOLFILE->set_flags. */ #define DB_MPOOL_NOFILE 0x001 /* Never open a backing file. */ #define DB_MPOOL_UNLINK 0x002 /* Unlink the file on last close. */ /* Priority values for DB_MPOOLFILE->set_priority. */ typedef enum { DB_PRIORITY_VERY_LOW=1, DB_PRIORITY_LOW=2, DB_PRIORITY_DEFAULT=3, DB_PRIORITY_HIGH=4, DB_PRIORITY_VERY_HIGH=5 } DB_CACHE_PRIORITY; /* Per-process DB_MPOOLFILE information. */ struct __db_mpoolfile { DB_FH *fhp; /* Underlying file handle. */ /* * !!! * The ref, pinref and q fields are protected by the region lock. */ u_int32_t ref; /* Reference count. */ u_int32_t pinref; /* Pinned block reference count. */ /* * !!! * Explicit representations of structures from queue.h. * TAILQ_ENTRY(__db_mpoolfile) q; */ struct { struct __db_mpoolfile *tqe_next; struct __db_mpoolfile **tqe_prev; } q; /* Linked list of DB_MPOOLFILE's. */ /* * !!! * The rest of the fields (with the exception of the MP_FLUSH flag) * are not thread-protected, even when they may be modified at any * time by the application. The reason is the DB_MPOOLFILE handle * is single-threaded from the viewpoint of the application, and so * the only fields needing to be thread-protected are those accessed * by checkpoint or sync threads when using DB_MPOOLFILE structures * to flush buffers from the cache. */ DB_ENV *dbenv; /* Overlying DB_ENV. */ MPOOLFILE *mfp; /* Underlying MPOOLFILE. */ u_int32_t clear_len; /* Cleared length on created pages. */ u_int8_t /* Unique file ID. */ fileid[DB_FILE_ID_LEN]; int ftype; /* File type. */ int32_t lsn_offset; /* LSN offset in page. */ u_int32_t gbytes, bytes; /* Maximum file size. */ DBT *pgcookie; /* Byte-string passed to pgin/pgout. */ DB_CACHE_PRIORITY /* Cache priority. */ priority; void *addr; /* Address of mmap'd region. */ size_t len; /* Length of mmap'd region. */ u_int32_t config_flags; /* Flags to DB_MPOOLFILE->set_flags. */ /* Methods. */ int (*close) __P((DB_MPOOLFILE *, u_int32_t)); int (*get) __P((DB_MPOOLFILE *, db_pgno_t *, u_int32_t, void *)); int (*open) __P((DB_MPOOLFILE *, const char *, u_int32_t, int, size_t)); int (*put) __P((DB_MPOOLFILE *, void *, u_int32_t)); int (*set) __P((DB_MPOOLFILE *, void *, u_int32_t)); int (*get_clear_len) __P((DB_MPOOLFILE *, u_int32_t *)); int (*set_clear_len) __P((DB_MPOOLFILE *, u_int32_t)); int (*get_fileid) __P((DB_MPOOLFILE *, u_int8_t *)); int (*set_fileid) __P((DB_MPOOLFILE *, u_int8_t *)); int (*get_flags) __P((DB_MPOOLFILE *, u_int32_t *)); int (*set_flags) __P((DB_MPOOLFILE *, u_int32_t, int)); int (*get_ftype) __P((DB_MPOOLFILE *, int *)); int (*set_ftype) __P((DB_MPOOLFILE *, int)); int (*get_lsn_offset) __P((DB_MPOOLFILE *, int32_t *)); int (*set_lsn_offset) __P((DB_MPOOLFILE *, int32_t)); int (*get_maxsize) __P((DB_MPOOLFILE *, u_int32_t *, u_int32_t *)); int (*set_maxsize) __P((DB_MPOOLFILE *, u_int32_t, u_int32_t)); int (*get_pgcookie) __P((DB_MPOOLFILE *, DBT *)); int (*set_pgcookie) __P((DB_MPOOLFILE *, DBT *)); int (*get_priority) __P((DB_MPOOLFILE *, DB_CACHE_PRIORITY *)); int (*set_priority) __P((DB_MPOOLFILE *, DB_CACHE_PRIORITY)); int (*sync) __P((DB_MPOOLFILE *)); /* * MP_FILEID_SET, MP_OPEN_CALLED and MP_READONLY do not need to be * thread protected because they are initialized before the file is * linked onto the per-process lists, and never modified. * * MP_FLUSH is thread protected because it is potentially read/set by * multiple threads of control. */ #define MP_FILEID_SET 0x001 /* Application supplied a file ID. */ #define MP_FLUSH 0x002 /* Was opened to flush a buffer. */ #define MP_OPEN_CALLED 0x004 /* File opened. */ #define MP_READONLY 0x008 /* File is readonly. */ u_int32_t flags; }; /* Mpool statistics structure. */ struct __db_mpool_stat { u_int32_t st_gbytes; /* Total cache size: GB. */ u_int32_t st_bytes; /* Total cache size: B. */ u_int32_t st_ncache; /* Number of caches. */ roff_t st_regsize; /* Region size. */ size_t st_mmapsize; /* Maximum file size for mmap. */ int st_maxopenfd; /* Maximum number of open fd's. */ int st_maxwrite; /* Maximum buffers to write. */ int st_maxwrite_sleep; /* Sleep after writing max buffers. */ u_int32_t st_map; /* Pages from mapped files. */ 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_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_page_trickle; /* Pages written by memp_trickle. */ u_int32_t st_pages; /* Total number of pages. */ u_int32_t st_page_clean; /* Clean pages. */ u_int32_t st_page_dirty; /* Dirty pages. */ 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_hash_nowait; /* Hash lock granted with nowait. */ u_int32_t st_hash_wait; /* Hash lock granted after wait. */ u_int32_t st_hash_max_wait; /* Max hash lock granted after wait. */ u_int32_t st_region_nowait; /* Region lock granted with nowait. */ u_int32_t st_region_wait; /* Region lock granted after wait. */ u_int32_t st_alloc; /* Number of page allocations. */ u_int32_t st_alloc_buckets; /* Buckets checked during allocation. */ u_int32_t st_alloc_max_buckets; /* Max checked during allocation. */ u_int32_t st_alloc_pages; /* Pages checked during allocation. */ u_int32_t st_alloc_max_pages; /* Max checked during allocation. */ }; /* Mpool file statistics structure. */ struct __db_mpool_fstat { char *file_name; /* File name. */ u_int32_t st_pagesize; /* Page size. */ u_int32_t st_map; /* Pages from mapped files. */ 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_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. */ }; /******************************************************* * Transactions and recovery. *******************************************************/ #define DB_TXNVERSION 1 typedef enum { DB_TXN_ABORT=0, /* Public. */ DB_TXN_APPLY=1, /* Public. */ DB_TXN_BACKWARD_ALLOC=2, /* Internal. */ DB_TXN_BACKWARD_ROLL=3, /* Public. */ DB_TXN_FORWARD_ROLL=4, /* Public. */ DB_TXN_OPENFILES=5, /* Internal. */ DB_TXN_POPENFILES=6, /* Internal. */ DB_TXN_PRINT=7 /* Public. */ } db_recops; /* * BACKWARD_ALLOC is used during the forward pass to pick up any aborted * allocations for files that were created during the forward pass. * The main difference between _ALLOC and _ROLL is that the entry for * the file not exist during the rollforward pass. */ #define DB_UNDO(op) ((op) == DB_TXN_ABORT || \ (op) == DB_TXN_BACKWARD_ROLL || (op) == DB_TXN_BACKWARD_ALLOC) #define DB_REDO(op) ((op) == DB_TXN_FORWARD_ROLL || (op) == DB_TXN_APPLY) struct __db_txn { DB_TXNMGR *mgrp; /* Pointer to transaction manager. */ DB_TXN *parent; /* Pointer to transaction's parent. */ DB_LSN last_lsn; /* Lsn of last log write. */ u_int32_t txnid; /* Unique transaction id. */ u_int32_t tid; /* Thread id for use in MT XA. */ roff_t off; /* Detail structure within region. */ db_timeout_t lock_timeout; /* Timeout for locks for this txn. */ db_timeout_t expire; /* Time this txn expires. */ void *txn_list; /* Undo information for parent. */ /* * !!! * Explicit representations of structures from queue.h. * TAILQ_ENTRY(__db_txn) links; * TAILQ_ENTRY(__db_txn) xalinks; */ struct { struct __db_txn *tqe_next; struct __db_txn **tqe_prev; } links; /* Links transactions off manager. */ struct { struct __db_txn *tqe_next; struct __db_txn **tqe_prev; } xalinks; /* Links active XA transactions. */ /* * !!! * Explicit representations of structures from queue.h. * TAILQ_HEAD(__events, __txn_event) events; */ struct { struct __txn_event *tqh_first; struct __txn_event **tqh_last; } events; /* * !!! * Explicit representations of structures from queue.h. * STAILQ_HEAD(__logrec, __txn_logrec) logs; */ struct { struct __txn_logrec *stqh_first; struct __txn_logrec **stqh_last; } logs; /* Links deferred events. */ /* * !!! * Explicit representations of structures from queue.h. * TAILQ_HEAD(__kids, __db_txn) kids; */ struct __kids { struct __db_txn *tqh_first; struct __db_txn **tqh_last; } kids; /* * !!! * Explicit representations of structures from queue.h. * TAILQ_ENTRY(__db_txn) klinks; */ struct { struct __db_txn *tqe_next; struct __db_txn **tqe_prev; } klinks; void *api_internal; /* C++ API private. */ void *xml_internal; /* XML API private. */ u_int32_t cursors; /* Number of cursors open for txn */ /* Methods. */ int (*abort) __P((DB_TXN *)); int (*commit) __P((DB_TXN *, u_int32_t)); int (*discard) __P((DB_TXN *, u_int32_t)); u_int32_t (*id) __P((DB_TXN *)); int (*prepare) __P((DB_TXN *, u_int8_t *)); void (*set_begin_lsnp) __P((DB_TXN *txn, DB_LSN **)); int (*set_timeout) __P((DB_TXN *, db_timeout_t, u_int32_t)); #define TXN_CHILDCOMMIT 0x001 /* Transaction that has committed. */ #define TXN_COMPENSATE 0x002 /* Compensating transaction. */ #define TXN_DEADLOCK 0x004 /* Transaction has deadlocked. */ #define TXN_DEGREE_2 0x008 /* Has degree 2 isolation. */ #define TXN_DIRTY_READ 0x010 /* Transaction does dirty reads. */ #define TXN_LOCKTIMEOUT 0x020 /* Transaction has a lock timeout. */ #define TXN_MALLOC 0x040 /* Structure allocated by TXN system. */ #define TXN_NOSYNC 0x080 /* Do not sync on prepare and commit. */ #define TXN_NOWAIT 0x100 /* Do not wait on locks. */ #define TXN_RESTORED 0x200 /* Transaction has been restored. */ #define TXN_SYNC 0x400 /* Sync on prepare and commit. */ u_int32_t flags; }; /* * Structure used for two phase commit interface. Berkeley DB support for two * phase commit is compatible with the X/open XA interface. * * The XA #define XIDDATASIZE defines the size of a global transaction ID. We * have our own version here (for name space reasons) which must have the same * value. */ #define DB_XIDDATASIZE 128 struct __db_preplist { DB_TXN *txn; u_int8_t gid[DB_XIDDATASIZE]; }; /* Transaction statistics structure. */ struct __db_txn_active { u_int32_t txnid; /* Transaction ID */ u_int32_t parentid; /* Transaction ID of parent */ DB_LSN lsn; /* LSN when transaction began */ u_int32_t xa_status; /* XA status */ u_int8_t xid[DB_XIDDATASIZE]; /* XA global transaction ID */ }; struct __db_txn_stat { DB_LSN st_last_ckp; /* lsn of the last checkpoint */ 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 txns possible */ 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 */ u_int32_t st_nrestores; /* number of restored transactions after recovery. */ u_int32_t st_maxnactive; /* maximum 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. */ roff_t st_regsize; /* Region size. */ }; /******************************************************* * Replication. *******************************************************/ /* Special, out-of-band environment IDs. */ #define DB_EID_BROADCAST -1 #define DB_EID_INVALID -2 /* rep_start flags values */ #define DB_REP_CLIENT 0x001 #define DB_REP_MASTER 0x002 /* Replication statistics. */ struct __db_rep_stat { /* !!! * Many replication statistics fields cannot be protected by a mutex * without an unacceptable performance penalty, since most message * processing is done without the need to hold a region-wide lock. * Fields whose comments end with a '+' may be updated without holding * the replication or log mutexes (as appropriate), and thus may be * off somewhat (or, on unreasonable architectures under unlucky * circumstances, garbaged). */ u_int32_t st_status; /* Current replication status. */ DB_LSN st_next_lsn; /* Next LSN to use or expect. */ DB_LSN st_waiting_lsn; /* LSN we're awaiting, if any. */ db_pgno_t st_next_pg; /* Next pg we expect. */ db_pgno_t st_waiting_pg; /* pg we're awaiting, if any. */ u_int32_t st_dupmasters; /* # of times a duplicate master condition was detected.+ */ int st_env_id; /* Current environment ID. */ int st_env_priority; /* Current environment priority. */ u_int32_t st_gen; /* Current generation number. */ u_int32_t st_egen; /* Current election gen number. */ u_int32_t st_log_duplicated; /* Log records received multiply.+ */ u_int32_t st_log_queued; /* Log records currently queued.+ */ u_int32_t st_log_queued_max; /* Max. log records queued at once.+ */ u_int32_t st_log_queued_total; /* Total # of log recs. ever queued.+ */ u_int32_t st_log_records; /* Log records received and put.+ */ u_int32_t st_log_requested; /* Log recs. missed and requested.+ */ int st_master; /* Env. ID of the current master. */ u_int32_t st_master_changes; /* # of times we've switched masters. */ u_int32_t st_msgs_badgen; /* Messages with a bad generation #.+ */ u_int32_t st_msgs_processed; /* Messages received and processed.+ */ u_int32_t st_msgs_recover; /* Messages ignored because this site was a client in recovery.+ */ u_int32_t st_msgs_send_failures;/* # of failed message sends.+ */ u_int32_t st_msgs_sent; /* # of successful message sends.+ */ u_int32_t st_newsites; /* # of NEWSITE msgs. received.+ */ int st_nsites; /* Current number of sites we will assume during elections. */ u_int32_t st_nthrottles; /* # of times we were throttled. */ u_int32_t st_outdated; /* # of times we detected and returned an OUTDATED condition.+ */ u_int32_t st_pg_duplicated; /* Pages received multiply.+ */ u_int32_t st_pg_records; /* Pages received and stored.+ */ u_int32_t st_pg_requested; /* Pages missed and requested.+ */ u_int32_t st_startup_complete; /* Site completed client sync-up. */ u_int32_t st_txns_applied; /* # of transactions applied.+ */ /* Elections generally. */ u_int32_t st_elections; /* # of elections held.+ */ u_int32_t st_elections_won; /* # of elections won by this site.+ */ /* Statistics about an in-progress election. */ int st_election_cur_winner; /* Current front-runner. */ u_int32_t st_election_gen; /* Election generation number. */ DB_LSN st_election_lsn; /* Max. LSN of current winner. */ int st_election_nsites; /* # of "registered voters". */ int st_election_nvotes; /* # of "registered voters" needed. */ int st_election_priority; /* Current election priority. */ int st_election_status; /* Current election status. */ u_int32_t st_election_tiebreaker;/* Election tiebreaker value. */ int st_election_votes; /* Votes received in this round. */ }; /* * The storage record for a sequence. */ struct __db_seq_record { u_int32_t seq_version; /* Version size/number. */ #define DB_SEQ_DEC 0x00000001 /* Decrement sequence. */ #define DB_SEQ_INC 0x00000002 /* Increment sequence. */ #define DB_SEQ_RANGE_SET 0x00000004 /* Range set (internal). */ #define DB_SEQ_WRAP 0x00000008 /* Wrap sequence at min/max. */ u_int32_t flags; /* Flags. */ db_seq_t seq_value; /* Current value. */ db_seq_t seq_max; /* Max permitted. */ db_seq_t seq_min; /* Min permitted. */ }; /* * Handle for a sequence object. */ struct __db_sequence { DB *seq_dbp; /* DB handle for this sequence. */ DB_MUTEX *seq_mutexp; /* Mutex if sequence is threaded. */ DB_SEQ_RECORD *seq_rp; /* Pointer to current data. */ DB_SEQ_RECORD seq_record; /* Data from DB_SEQUENCE. */ int32_t seq_cache_size; /* Number of values cached. */ db_seq_t seq_last_value; /* Last value cached. */ DBT seq_key; /* DBT pointing to sequence key. */ DBT seq_data; /* DBT pointing to seq_record. */ /* API-private structure: used by C++ and Java. */ void *api_internal; int (*close) __P((DB_SEQUENCE *, u_int32_t)); int (*get) __P((DB_SEQUENCE *, DB_TXN *, int32_t, db_seq_t *, u_int32_t)); int (*get_cachesize) __P((DB_SEQUENCE *, int32_t *)); int (*get_db) __P((DB_SEQUENCE *, DB **)); int (*get_flags) __P((DB_SEQUENCE *, u_int32_t *)); int (*get_key) __P((DB_SEQUENCE *, DBT *)); int (*get_range) __P((DB_SEQUENCE *, db_seq_t *, db_seq_t *)); int (*initial_value) __P((DB_SEQUENCE *, db_seq_t)); int (*open) __P((DB_SEQUENCE *, DB_TXN *, DBT *, u_int32_t)); int (*remove) __P((DB_SEQUENCE *, DB_TXN *, u_int32_t)); int (*set_cachesize) __P((DB_SEQUENCE *, int32_t)); int (*set_flags) __P((DB_SEQUENCE *, u_int32_t)); int (*set_range) __P((DB_SEQUENCE *, db_seq_t, db_seq_t)); int (*stat) __P((DB_SEQUENCE *, DB_SEQUENCE_STAT **, u_int32_t)); int (*stat_print) __P((DB_SEQUENCE *, u_int32_t)); }; struct __db_seq_stat { u_int32_t st_wait; /* Sequence lock granted without wait. */ u_int32_t st_nowait; /* Sequence lock granted after wait. */ db_seq_t st_current; /* Current value in db. */ db_seq_t st_value; /* Current cached value. */ db_seq_t st_last_value; /* Last cached value. */ db_seq_t st_min; /* Minimum value. */ db_seq_t st_max; /* Maximum value. */ int32_t st_cache_size; /* Cache size. */ u_int32_t st_flags; /* Flag value. */ }; /******************************************************* * Access methods. *******************************************************/ typedef enum { DB_BTREE=1, DB_HASH=2, DB_RECNO=3, DB_QUEUE=4, DB_UNKNOWN=5 /* Figure it out on open. */ } DBTYPE; #define DB_RENAMEMAGIC 0x030800 /* File has been renamed. */ #define DB_BTREEVERSION 9 /* Current btree version. */ #define DB_BTREEOLDVER 8 /* Oldest btree version supported. */ #define DB_BTREEMAGIC 0x053162 #define DB_HASHVERSION 8 /* Current hash version. */ #define DB_HASHOLDVER 7 /* Oldest hash version supported. */ #define DB_HASHMAGIC 0x061561 #define DB_QAMVERSION 4 /* Current queue version. */ #define DB_QAMOLDVER 3 /* Oldest queue version supported. */ #define DB_QAMMAGIC 0x042253 #define DB_SEQUENCE_VERSION 2 /* Current sequence version. */ #define DB_SEQUENCE_OLDVER 1 /* Oldest queue version supported. */ /* * 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_CACHED_COUNTS 4 /* stat() */ #define DB_CONSUME 5 /* get() */ #define DB_CONSUME_WAIT 6 /* get() */ #define DB_CURRENT 7 /* c_get(), c_put(), DB_LOGC->get() */ #define DB_FAST_STAT 8 /* stat() */ #define DB_FIRST 9 /* c_get(), DB_LOGC->get() */ #define DB_GET_BOTH 10 /* get(), c_get() */ #define DB_GET_BOTHC 11 /* c_get() (internal) */ #define DB_GET_BOTH_RANGE 12 /* get(), c_get() */ #define DB_GET_RECNO 13 /* c_get() */ #define DB_JOIN_ITEM 14 /* c_get(); do not do primary lookup */ #define DB_KEYFIRST 15 /* c_put() */ #define DB_KEYLAST 16 /* c_put() */ #define DB_LAST 17 /* c_get(), DB_LOGC->get() */ #define DB_NEXT 18 /* c_get(), DB_LOGC->get() */ #define DB_NEXT_DUP 19 /* c_get() */ #define DB_NEXT_NODUP 20 /* c_get() */ #define DB_NODUPDATA 21 /* put(), c_put() */ #define DB_NOOVERWRITE 22 /* put() */ #define DB_NOSYNC 23 /* close() */ #define DB_POSITION 24 /* c_dup() */ #define DB_PREV 25 /* c_get(), DB_LOGC->get() */ #define DB_PREV_NODUP 26 /* c_get(), DB_LOGC->get() */ #define DB_RECORDCOUNT 27 /* stat() */ #define DB_SET 28 /* c_get(), DB_LOGC->get() */ #define DB_SET_LOCK_TIMEOUT 29 /* set_timout() */ #define DB_SET_RANGE 30 /* c_get() */ #define DB_SET_RECNO 31 /* get(), c_get() */ #define DB_SET_TXN_NOW 32 /* set_timout() (internal) */ #define DB_SET_TXN_TIMEOUT 33 /* set_timout() */ #define DB_UPDATE_SECONDARY 34 /* c_get(), c_del() (internal) */ #define DB_WRITECURSOR 35 /* cursor() */ #define DB_WRITELOCK 36 /* cursor() (internal) */ /* This has to change when the max opcode hits 255. */ #define DB_OPFLAGS_MASK 0x000000ff /* Mask for operations flags. */ /* * Masks for flags that can be OR'd into DB access method and cursor * operation values. * * DB_DIRTY_READ 0x04000000 Dirty Read. */ #define DB_MULTIPLE 0x08000000 /* Return multiple data values. */ #define DB_MULTIPLE_KEY 0x10000000 /* Return multiple data/key pairs. */ #define DB_RMW 0x20000000 /* Acquire write flag immediately. */ /* * DB (user visible) error return codes. * * !!! * For source compatibility with DB 2.X deadlock return (EAGAIN), use the * following: * #include <errno.h> * #define DB_LOCK_DEADLOCK EAGAIN * * !!! * We don't want our error returns to conflict with other packages where * possible, so pick a base error value that's hopefully not common. We * document that we own the error name space from -30,800 to -30,999. */ /* DB (public) error return codes. */ #define DB_BUFFER_SMALL (-30999)/* User memory too small for return. */ #define DB_DONOTINDEX (-30998)/* "Null" return from 2ndary callbk. */ #define DB_KEYEMPTY (-30997)/* Key/data deleted or never created. */ #define DB_KEYEXIST (-30996)/* The key/data pair already exists. */ #define DB_LOCK_DEADLOCK (-30995)/* Deadlock. */ #define DB_LOCK_NOTGRANTED (-30994)/* Lock unavailable. */ #define DB_LOG_BUFFER_FULL (-30993)/* In-memory log buffer full. */ #define DB_NOSERVER (-30992)/* Server panic return. */ #define DB_NOSERVER_HOME (-30991)/* Bad home sent to server. */ #define DB_NOSERVER_ID (-30990)/* Bad ID sent to server. */ #define DB_NOTFOUND (-30989)/* Key/data pair not found (EOF). */ #define DB_OLD_VERSION (-30988)/* Out-of-date version. */ #define DB_PAGE_NOTFOUND (-30987)/* Requested page not found. */ #define DB_REP_DUPMASTER (-30986)/* There are two masters. */ #define DB_REP_HANDLE_DEAD (-30985)/* Rolled back a commit. */ #define DB_REP_HOLDELECTION (-30984)/* Time to hold an election. */ #define DB_REP_ISPERM (-30983)/* Cached not written perm written.*/ #define DB_REP_NEWMASTER (-30982)/* We have learned of a new master. */ #define DB_REP_NEWSITE (-30981)/* New site entered system. */ #define DB_REP_NOTPERM (-30980)/* Permanent log record not written. */ #define DB_REP_STARTUPDONE (-30979)/* Client startup complete. */ #define DB_REP_UNAVAIL (-30978)/* Site cannot currently be reached. */ #define DB_RUNRECOVERY (-30977)/* Panic return. */ #define DB_SECONDARY_BAD (-30976)/* Secondary index corrupt. */ #define DB_VERIFY_BAD (-30975)/* Verify failed; bad format. */ #define DB_VERSION_MISMATCH (-30974)/* Environment version mismatch. */ /* DB (private) error return codes. */ #define DB_ALREADY_ABORTED (-30899) #define DB_DELETED (-30898)/* Recovery file marked deleted. */ #define DB_LOCK_NOTEXIST (-30897)/* Object to lock is gone. */ #define DB_NEEDSPLIT (-30896)/* Page needs to be split. */ #define DB_REP_EGENCHG (-30895)/* Egen changed while in election. */ #define DB_REP_LOGREADY (-30894)/* Rep log ready for recovery. */ #define DB_REP_PAGEDONE (-30893)/* This page was already done. */ #define DB_SURPRISE_KID (-30892)/* Child commit where parent didn't know it was a parent. */ #define DB_SWAPBYTES (-30891)/* Database needs byte swapping. */ #define DB_TIMEOUT (-30890)/* Timed out waiting for election. */ #define DB_TXN_CKP (-30889)/* Encountered ckp record in log. */ #define DB_VERIFY_FATAL (-30888)/* DB->verify cannot proceed. */ /* Database handle. */ struct __db { /******************************************************* * Public: owned by the application. *******************************************************/ u_int32_t pgsize; /* Database logical page size. */ /* Callbacks. */ int (*db_append_recno) __P((DB *, DBT *, db_recno_t)); void (*db_feedback) __P((DB *, int, int)); int (*dup_compare) __P((DB *, const DBT *, const DBT *)); void *app_private; /* Application-private handle. */ /******************************************************* * Private: owned by DB. *******************************************************/ DB_ENV *dbenv; /* Backing environment. */ DBTYPE type; /* DB access method type. */ DB_MPOOLFILE *mpf; /* Backing buffer pool. */ DB_MUTEX *mutexp; /* Synchronization for free threading */ char *fname, *dname; /* File/database passed to DB->open. */ u_int32_t open_flags; /* Flags passed to DB->open. */ u_int8_t fileid[DB_FILE_ID_LEN];/* File's unique ID for locking. */ u_int32_t adj_fileid; /* File's unique ID for curs. adj. */ #define DB_LOGFILEID_INVALID -1 FNAME *log_filename; /* File's naming info for logging. */ db_pgno_t meta_pgno; /* Meta page number */ u_int32_t lid; /* Locker id for handle locking. */ u_int32_t cur_lid; /* Current handle lock holder. */ u_int32_t associate_lid; /* Locker id for DB->associate call. */ DB_LOCK handle_lock; /* Lock held on this handle. */ u_int cl_id; /* RPC: remote client id. */ time_t timestamp; /* Handle timestamp for replication. */ /* * Returned data memory for DB->get() and friends. */ DBT my_rskey; /* Secondary key. */ DBT my_rkey; /* [Primary] key. */ DBT my_rdata; /* Data. */ /* * !!! * Some applications use DB but implement their own locking outside of * DB. If they're using fcntl(2) locking on the underlying database * file, and we open and close a file descriptor for that file, we will * discard their locks. The DB_FCNTL_LOCKING flag to DB->open is an * undocumented interface to support this usage which leaves any file * descriptors we open until DB->close. This will only work with the * DB->open interface and simple caches, e.g., creating a transaction * thread may open/close file descriptors this flag doesn't protect. * Locking with fcntl(2) on a file that you don't own is a very, very * unsafe thing to do. 'Nuff said. */ DB_FH *saved_open_fhp; /* Saved file handle. */ /* * Linked list of DBP's, linked from the DB_ENV, used to keep track * of all open db handles for cursor adjustment. * * !!! * Explicit representations of structures from queue.h. * LIST_ENTRY(__db) dblistlinks; */ struct { struct __db *le_next; struct __db **le_prev; } dblistlinks; /* * Cursor queues. * * !!! * Explicit representations of structures from queue.h. * TAILQ_HEAD(__cq_fq, __dbc) free_queue; * TAILQ_HEAD(__cq_aq, __dbc) active_queue; * TAILQ_HEAD(__cq_jq, __dbc) join_queue; */ struct __cq_fq { struct __dbc *tqh_first; struct __dbc **tqh_last; } free_queue; struct __cq_aq { struct __dbc *tqh_first; struct __dbc **tqh_last; } active_queue; struct __cq_jq { struct __dbc *tqh_first; struct __dbc **tqh_last; } join_queue; /* * Secondary index support. * * Linked list of secondary indices -- set in the primary. * * !!! * Explicit representations of structures from queue.h. * LIST_HEAD(s_secondaries, __db); */ struct { struct __db *lh_first; } s_secondaries; /* * List entries for secondaries, and reference count of how * many threads are updating this secondary (see __db_c_put). * * !!! * Note that these are synchronized by the primary's mutex, but * filled in in the secondaries. * * !!! * Explicit representations of structures from queue.h. * LIST_ENTRY(__db) s_links; */ struct { struct __db *le_next; struct __db **le_prev; } s_links; u_int32_t s_refcnt; /* Secondary callback and free functions -- set in the secondary. */ int (*s_callback) __P((DB *, const DBT *, const DBT *, DBT *)); /* Reference to primary -- set in the secondary. */ DB *s_primary; /* API-private structure: used by DB 1.85, C++, Java, Perl and Tcl */ void *api_internal; /* Subsystem-private structure. */ void *bt_internal; /* Btree/Recno access method. */ void *h_internal; /* Hash access method. */ void *q_internal; /* Queue access method. */ void *xa_internal; /* XA. */ /* Methods. */ int (*associate) __P((DB *, DB_TXN *, DB *, int (*)(DB *, const DBT *, const DBT *, DBT *), u_int32_t)); 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 (*dump) __P((DB *, const char *, int (*)(void *, const void *), void *, int, int)); void (*err) __P((DB *, int, const char *, ...)); void (*errx) __P((DB *, const char *, ...)); int (*fd) __P((DB *, int *)); int (*get) __P((DB *, DB_TXN *, DBT *, DBT *, u_int32_t)); int (*pget) __P((DB *, DB_TXN *, DBT *, DBT *, DBT *, u_int32_t)); int (*get_byteswapped) __P((DB *, int *)); int (*get_cachesize) __P((DB *, u_int32_t *, u_int32_t *, int *)); int (*get_dbname) __P((DB *, const char **, const char **)); int (*get_encrypt_flags) __P((DB *, u_int32_t *)); DB_ENV *(*get_env) __P((DB *)); void (*get_errfile) __P((DB *, FILE **)); void (*get_errpfx) __P((DB *, const char **)); int (*get_flags) __P((DB *, u_int32_t *)); int (*get_lorder) __P((DB *, int *)); int (*get_open_flags) __P((DB *, u_int32_t *)); int (*get_pagesize) __P((DB *, u_int32_t *)); int (*get_transactional) __P((DB *)); int (*get_type) __P((DB *, DBTYPE *)); int (*join) __P((DB *, DBC **, DBC **, u_int32_t)); int (*key_range) __P((DB *, DB_TXN *, DBT *, DB_KEY_RANGE *, u_int32_t)); int (*open) __P((DB *, DB_TXN *, const char *, const char *, DBTYPE, u_int32_t, int)); int (*put) __P((DB *, DB_TXN *, DBT *, DBT *, u_int32_t)); int (*remove) __P((DB *, const char *, const char *, u_int32_t)); int (*rename) __P((DB *, const char *, const char *, const char *, u_int32_t)); int (*truncate) __P((DB *, DB_TXN *, u_int32_t *, u_int32_t)); int (*set_append_recno) __P((DB *, int (*)(DB *, DBT *, db_recno_t))); int (*set_alloc) __P((DB *, void *(*)(size_t), void *(*)(void *, size_t), void (*)(void *))); int (*set_cachesize) __P((DB *, u_int32_t, u_int32_t, int)); int (*set_dup_compare) __P((DB *, int (*)(DB *, const DBT *, const DBT *))); int (*set_encrypt) __P((DB *, const char *, u_int32_t)); void (*set_errcall) __P((DB *, void (*)(const DB_ENV *, const char *, const char *))); void (*set_errfile) __P((DB *, FILE *)); void (*set_errpfx) __P((DB *, const char *)); int (*set_feedback) __P((DB *, void (*)(DB *, int, int))); int (*set_flags) __P((DB *, u_int32_t)); int (*set_lorder) __P((DB *, int)); void (*set_msgcall) __P((DB *, void (*)(const DB_ENV *, const char *))); void (*get_msgfile) __P((DB *, FILE **)); void (*set_msgfile) __P((DB *, FILE *)); int (*set_pagesize) __P((DB *, u_int32_t)); int (*set_paniccall) __P((DB *, void (*)(DB_ENV *, int))); int (*stat) __P((DB *, DB_TXN *, void *, u_int32_t)); int (*stat_print) __P((DB *, u_int32_t)); int (*sync) __P((DB *, u_int32_t)); int (*upgrade) __P((DB *, const char *, u_int32_t)); int (*verify) __P((DB *, const char *, const char *, FILE *, u_int32_t)); int (*get_bt_minkey) __P((DB *, u_int32_t *)); int (*set_bt_compare) __P((DB *, int (*)(DB *, const DBT *, const DBT *))); int (*set_bt_maxkey) __P((DB *, u_int32_t)); int (*set_bt_minkey) __P((DB *, u_int32_t)); int (*set_bt_prefix) __P((DB *, size_t (*)(DB *, const DBT *, const DBT *))); int (*get_h_ffactor) __P((DB *, u_int32_t *)); int (*get_h_nelem) __P((DB *, u_int32_t *)); int (*set_h_ffactor) __P((DB *, u_int32_t)); int (*set_h_hash) __P((DB *, u_int32_t (*)(DB *, const void *, u_int32_t))); int (*set_h_nelem) __P((DB *, u_int32_t)); int (*get_re_delim) __P((DB *, int *)); int (*get_re_len) __P((DB *, u_int32_t *)); int (*get_re_pad) __P((DB *, int *)); int (*get_re_source) __P((DB *, const char **)); int (*set_re_delim) __P((DB *, int)); int (*set_re_len) __P((DB *, u_int32_t)); int (*set_re_pad) __P((DB *, int)); int (*set_re_source) __P((DB *, const char *)); int (*get_q_extentsize) __P((DB *, u_int32_t *)); int (*set_q_extentsize) __P((DB *, u_int32_t)); int (*db_am_remove) __P((DB *, DB_TXN *, const char *, const char *)); int (*db_am_rename) __P((DB *, DB_TXN *, const char *, const char *, const char *)); /* * Never called; these are a place to save function pointers * so that we can undo an associate. */ int (*stored_get) __P((DB *, DB_TXN *, DBT *, DBT *, u_int32_t)); int (*stored_close) __P((DB *, u_int32_t)); #define DB_OK_BTREE 0x01 #define DB_OK_HASH 0x02 #define DB_OK_QUEUE 0x04 #define DB_OK_RECNO 0x08 u_int32_t am_ok; /* Legal AM choices. */ #define DB_AM_CHKSUM 0x00000001 /* Checksumming. */ #define DB_AM_CL_WRITER 0x00000002 /* Allow writes in client replica. */ #define DB_AM_COMPENSATE 0x00000004 /* Created by compensating txn. */ #define DB_AM_CREATED 0x00000008 /* Database was created upon open. */ #define DB_AM_CREATED_MSTR 0x00000010 /* Encompassing file was created. */ #define DB_AM_DBM_ERROR 0x00000020 /* Error in DBM/NDBM database. */ #define DB_AM_DELIMITER 0x00000040 /* Variable length delimiter set. */ #define DB_AM_DIRTY 0x00000080 /* Support Dirty Reads. */ #define DB_AM_DISCARD 0x00000100 /* Discard any cached pages. */ #define DB_AM_DUP 0x00000200 /* DB_DUP. */ #define DB_AM_DUPSORT 0x00000400 /* DB_DUPSORT. */ #define DB_AM_ENCRYPT 0x00000800 /* Encryption. */ #define DB_AM_FIXEDLEN 0x00001000 /* Fixed-length records. */ #define DB_AM_INMEM 0x00002000 /* In-memory; no sync on close. */ #define DB_AM_INORDER 0x00004000 /* DB_INORDER. */ #define DB_AM_IN_RENAME 0x00008000 /* File is being renamed. */ #define DB_AM_NOT_DURABLE 0x00010000 /* Do not log changes. */ #define DB_AM_OPEN_CALLED 0x00020000 /* DB->open called. */ #define DB_AM_PAD 0x00040000 /* Fixed-length record pad. */ #define DB_AM_PGDEF 0x00080000 /* Page size was defaulted. */ #define DB_AM_RDONLY 0x00100000 /* Database is readonly. */ #define DB_AM_RECNUM 0x00200000 /* DB_RECNUM. */ #define DB_AM_RECOVER 0x00400000 /* DB opened by recovery routine. */ #define DB_AM_RENUMBER 0x00800000 /* DB_RENUMBER. */ #define DB_AM_REPLICATION 0x01000000 /* An internal replication file. */ #define DB_AM_REVSPLITOFF 0x02000000 /* DB_REVSPLITOFF. */ #define DB_AM_SECONDARY 0x04000000 /* Database is a secondary index. */ #define DB_AM_SNAPSHOT 0x08000000 /* DB_SNAPSHOT. */ #define DB_AM_SUBDB 0x10000000 /* Subdatabases supported. */ #define DB_AM_SWAP 0x20000000 /* Pages need to be byte-swapped. */ #define DB_AM_TXN 0x40000000 /* Opened in a transaction. */ #define DB_AM_VERIFYING 0x80000000 /* DB handle is in the verifier. */ u_int32_t orig_flags; /* Flags at open, for refresh. */ u_int32_t flags; }; /* * Macros for bulk get. These are only intended for the C API. * For C++, use DbMultiple*Iterator. */ #define DB_MULTIPLE_INIT(pointer, dbt) \ (pointer = (u_int8_t *)(dbt)->data + \ (dbt)->ulen - sizeof(u_int32_t)) #define DB_MULTIPLE_NEXT(pointer, dbt, retdata, retdlen) \ do { \ if (*((u_int32_t *)(pointer)) == (u_int32_t)-1) { \ retdata = NULL; \ pointer = NULL; \ break; \ } \ retdata = (u_int8_t *) \ (dbt)->data + *(u_int32_t *)(pointer); \ (pointer) = (u_int32_t *)(pointer) - 1; \ retdlen = *(u_int32_t *)(pointer); \ (pointer) = (u_int32_t *)(pointer) - 1; \ if (retdlen == 0 && \ retdata == (u_int8_t *)(dbt)->data) \ retdata = NULL; \ } while (0) #define DB_MULTIPLE_KEY_NEXT(pointer, dbt, retkey, retklen, retdata, retdlen) \ do { \ if (*((u_int32_t *)(pointer)) == (u_int32_t)-1) { \ retdata = NULL; \ retkey = NULL; \ pointer = NULL; \ break; \ } \ retkey = (u_int8_t *) \ (dbt)->data + *(u_int32_t *)(pointer); \ (pointer) = (u_int32_t *)(pointer) - 1; \ retklen = *(u_int32_t *)(pointer); \ (pointer) = (u_int32_t *)(pointer) - 1; \ retdata = (u_int8_t *) \ (dbt)->data + *(u_int32_t *)(pointer); \ (pointer) = (u_int32_t *)(pointer) - 1; \ retdlen = *(u_int32_t *)(pointer); \ (pointer) = (u_int32_t *)(pointer) - 1; \ } while (0) #define DB_MULTIPLE_RECNO_NEXT(pointer, dbt, recno, retdata, retdlen) \ do { \ if (*((u_int32_t *)(pointer)) == (u_int32_t)0) { \ recno = 0; \ retdata = NULL; \ pointer = NULL; \ break; \ } \ recno = *(u_int32_t *)(pointer); \ (pointer) = (u_int32_t *)(pointer) - 1; \ retdata = (u_int8_t *) \ (dbt)->data + *(u_int32_t *)(pointer); \ (pointer) = (u_int32_t *)(pointer) - 1; \ retdlen = *(u_int32_t *)(pointer); \ (pointer) = (u_int32_t *)(pointer) - 1; \ } while (0) /******************************************************* * Access method cursors. *******************************************************/ struct __dbc { DB *dbp; /* Related DB access method. */ DB_TXN *txn; /* Associated transaction. */ /* * Active/free cursor queues. * * !!! * Explicit representations of structures from queue.h. * TAILQ_ENTRY(__dbc) links; */ struct { DBC *tqe_next; DBC **tqe_prev; } links; /* * The DBT *'s below are used by the cursor routines to return * data to the user when DBT flags indicate that DB should manage * the returned memory. They point at a DBT containing the buffer * and length that will be used, and "belonging" to the handle that * should "own" this memory. This may be a "my_*" field of this * cursor--the default--or it may be the corresponding field of * another cursor, a DB handle, a join cursor, etc. In general, it * will be whatever handle the user originally used for the current * DB interface call. */ DBT *rskey; /* Returned secondary key. */ DBT *rkey; /* Returned [primary] key. */ DBT *rdata; /* Returned data. */ DBT my_rskey; /* Space for returned secondary key. */ DBT my_rkey; /* Space for returned [primary] key. */ DBT my_rdata; /* Space for returned data. */ 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; /* CDB lock held on this cursor. */ u_int cl_id; /* Remote client id. */ DBTYPE dbtype; /* Cursor type. */ DBC_INTERNAL *internal; /* Access method private. */ int (*c_close) __P((DBC *)); /* Methods: public. */ int (*c_count) __P((DBC *, db_recno_t *, u_int32_t)); int (*c_del) __P((DBC *, u_int32_t)); int (*c_dup) __P((DBC *, DBC **, u_int32_t)); int (*c_get) __P((DBC *, DBT *, DBT *, u_int32_t)); int (*c_pget) __P((DBC *, DBT *, DBT *, DBT *, u_int32_t)); int (*c_put) __P((DBC *, DBT *, DBT *, u_int32_t)); /* Methods: private. */ int (*c_am_bulk) __P((DBC *, DBT *, u_int32_t)); int (*c_am_close) __P((DBC *, db_pgno_t, int *)); int (*c_am_del) __P((DBC *)); int (*c_am_destroy) __P((DBC *)); int (*c_am_get) __P((DBC *, DBT *, DBT *, u_int32_t, db_pgno_t *)); int (*c_am_put) __P((DBC *, DBT *, DBT *, u_int32_t, db_pgno_t *)); int (*c_am_writelock) __P((DBC *)); #define DBC_ACTIVE 0x0001 /* Cursor in use. */ #define DBC_COMPENSATE 0x0002 /* Cursor compensating, don't lock. */ #define DBC_DEGREE_2 0x0004 /* Cursor has degree 2 isolation. */ #define DBC_DIRTY_READ 0x0008 /* Cursor supports dirty reads. */ #define DBC_OPD 0x0010 /* Cursor references off-page dups. */ #define DBC_RECOVER 0x0020 /* Recovery cursor; don't log/lock. */ #define DBC_RMW 0x0040 /* Acquire write flag in read op. */ #define DBC_TRANSIENT 0x0080 /* Cursor is transient. */ #define DBC_WRITECURSOR 0x0100 /* Cursor may be used to write (CDB). */ #define DBC_WRITER 0x0200 /* Cursor immediately writing (CDB). */ #define DBC_MULTIPLE 0x0400 /* Return Multiple data. */ #define DBC_MULTIPLE_KEY 0x0800 /* Return Multiple keys and data. */ #define DBC_OWN_LID 0x1000 /* Free lock id on destroy. */ u_int32_t flags; }; /* Key range statistics structure */ struct __key_range { double less; double equal; double greater; }; /* Btree/Recno statistics structure. */ struct __db_bt_stat { u_int32_t bt_magic; /* Magic number. */ u_int32_t bt_version; /* Version number. */ u_int32_t bt_metaflags; /* Metadata flags. */ u_int32_t bt_nkeys; /* Number of unique keys. */ u_int32_t bt_ndata; /* Number of data items. */ u_int32_t bt_pagesize; /* Page size. */ 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_levels; /* Tree levels. */ 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_empty_pg; /* Empty 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. */ }; /* Hash statistics structure. */ struct __db_h_stat { u_int32_t hash_magic; /* Magic number. */ u_int32_t hash_version; /* Version number. */ u_int32_t hash_metaflags; /* Metadata flags. */ u_int32_t hash_nkeys; /* Number of unique keys. */ u_int32_t hash_ndata; /* Number of data items. */ u_int32_t hash_pagesize; /* Page size. */ u_int32_t hash_ffactor; /* Fill factor specified at create. */ u_int32_t hash_buckets; /* Number of hash buckets. */ u_int32_t hash_free; /* Pages on the free list. */ u_int32_t hash_bfree; /* Bytes free on bucket pages. */ u_int32_t hash_bigpages; /* Number of big key/data pages. */ u_int32_t hash_big_bfree; /* Bytes free on big item pages. */ u_int32_t hash_overflows; /* Number of overflow pages. */ u_int32_t hash_ovfl_free; /* Bytes free on ovfl pages. */ u_int32_t hash_dup; /* Number of dup pages. */ u_int32_t hash_dup_free; /* Bytes free on duplicate pages. */ }; /* Queue statistics structure. */ struct __db_qam_stat { u_int32_t qs_magic; /* Magic number. */ u_int32_t qs_version; /* Version number. */ u_int32_t qs_metaflags; /* Metadata flags. */ u_int32_t qs_nkeys; /* Number of unique keys. */ u_int32_t qs_ndata; /* Number of data items. */ u_int32_t qs_pagesize; /* Page size. */ u_int32_t qs_extentsize; /* Pages per extent. */ u_int32_t qs_pages; /* Data pages. */ u_int32_t qs_re_len; /* Fixed-length record length. */ u_int32_t qs_re_pad; /* Fixed-length record pad. */ u_int32_t qs_pgfree; /* Bytes free in data pages. */ u_int32_t qs_first_recno; /* First not deleted record. */ u_int32_t qs_cur_recno; /* Next available record number. */ }; /******************************************************* * Environment. *******************************************************/ #define DB_REGION_MAGIC 0x120897 /* Environment magic number. */ /* Database Environment handle. */ struct __db_env { /******************************************************* * Public: owned by the application. *******************************************************/ /* Error message callback. */ void (*db_errcall) __P((const DB_ENV *, const char *, const char *)); FILE *db_errfile; /* Error message file stream. */ const char *db_errpfx; /* Error message prefix. */ FILE *db_msgfile; /* Statistics message file stream. */ /* Statistics message callback. */ void (*db_msgcall) __P((const DB_ENV *, const char *)); /* Other Callbacks. */ void (*db_feedback) __P((DB_ENV *, int, int)); void (*db_paniccall) __P((DB_ENV *, int)); /* App-specified alloc functions. */ void *(*db_malloc) __P((size_t)); void *(*db_realloc) __P((void *, size_t)); void (*db_free) __P((void *)); /* * Currently, the verbose list is a bit field with room for 32 * entries. There's no reason that it needs to be limited, if * there are ever more than 32 entries, convert to a bit array. */ #define DB_VERB_DEADLOCK 0x0001 /* Deadlock detection information. */ #define DB_VERB_RECOVERY 0x0002 /* Recovery information. */ #define DB_VERB_REPLICATION 0x0004 /* Replication information. */ #define DB_VERB_WAITSFOR 0x0008 /* Dump waits-for table. */ u_int32_t verbose; /* Verbose output. */ void *app_private; /* Application-private handle. */ int (*app_dispatch) /* User-specified recovery dispatch. */ __P((DB_ENV *, DBT *, DB_LSN *, db_recops)); /* Locking. */ u_int8_t *lk_conflicts; /* Two dimensional conflict matrix. */ int lk_modes; /* Number of lock modes in table. */ u_int32_t lk_max; /* Maximum number of locks. */ u_int32_t lk_max_lockers;/* Maximum number of lockers. */ u_int32_t lk_max_objects;/* Maximum number of locked objects. */ u_int32_t lk_detect; /* Deadlock detect on all conflicts. */ db_timeout_t lk_timeout; /* Lock timeout period. */ /* Logging. */ u_int32_t lg_bsize; /* Buffer size. */ u_int32_t lg_size; /* Log file size. */ u_int32_t lg_regionmax; /* Region size. */ /* Memory pool. */ u_int32_t mp_gbytes; /* Cachesize: GB. */ u_int32_t mp_bytes; /* Cachesize: Bytes. */ u_int mp_ncache; /* Number of cache regions. */ size_t mp_mmapsize; /* Maximum file size for mmap. */ int mp_maxopenfd; /* Maximum open file descriptors. */ int mp_maxwrite; /* Maximum buffers to write. */ int /* Sleep after writing max buffers. */ mp_maxwrite_sleep; /* Replication */ int rep_eid; /* environment id. */ int (*rep_send) /* Send function. */ __P((DB_ENV *, const DBT *, const DBT *, const DB_LSN *, int, u_int32_t)); /* Transactions. */ u_int32_t tx_max; /* Maximum number of transactions. */ time_t tx_timestamp; /* Recover to specific timestamp. */ db_timeout_t tx_timeout; /* Timeout for transactions. */ /******************************************************* * Private: owned by DB. *******************************************************/ /* User files, 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. */ int db_mode; /* Default open permissions. */ int dir_mode; /* Intermediate directory perms. */ u_int32_t env_lid; /* Locker ID in non-threaded handles. */ u_int32_t open_flags; /* Flags passed to DB_ENV->open. */ void *reginfo; /* REGINFO structure reference. */ DB_FH *lockfhp; /* fcntl(2) locking file handle. */ int (**recover_dtab) /* Dispatch table for recover funcs. */ __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *)); size_t recover_dtab_size; /* Slots in the dispatch table. */ void *cl_handle; /* RPC: remote client handle. */ u_int cl_id; /* RPC: remote client env id. */ int db_ref; /* DB reference count. */ long shm_key; /* shmget(2) key. */ u_int32_t tas_spins; /* test-and-set spins. */ /* * List of open DB handles for this DB_ENV, used for cursor * adjustment. Must be protected for multi-threaded support. * * !!! * As this structure is allocated in per-process memory, the * mutex may need to be stored elsewhere on architectures unable * to support mutexes in heap memory, e.g. HP/UX 9. * * !!! * Explicit representation of structure in queue.h. * LIST_HEAD(dblist, __db); */ DB_MUTEX *dblist_mutexp; /* Mutex. */ struct { struct __db *lh_first; } dblist; /* * XA support. * * !!! * Explicit representations of structures from queue.h. * TAILQ_ENTRY(__db_env) links; * TAILQ_HEAD(xa_txn, __db_txn); */ struct { struct __db_env *tqe_next; struct __db_env **tqe_prev; } links; struct __xa_txn { /* XA Active Transactions. */ struct __db_txn *tqh_first; struct __db_txn **tqh_last; } xa_txn; int xa_rmid; /* XA Resource Manager ID. */ /* API-private structure. */ void *api1_internal; /* C++, Perl API private */ void *api2_internal; /* Java API private */ char *passwd; /* Cryptography support. */ size_t passwd_len; void *crypto_handle; /* Primary handle. */ DB_MUTEX *mt_mutexp; /* Mersenne Twister mutex. */ int mti; /* Mersenne Twister index. */ u_long *mt; /* Mersenne Twister state vector. */ /* DB_ENV Methods. */ int (*close) __P((DB_ENV *, u_int32_t)); int (*dbremove) __P((DB_ENV *, DB_TXN *, const char *, const char *, u_int32_t)); int (*dbrename) __P((DB_ENV *, DB_TXN *, const char *, const char *, const char *, u_int32_t)); void (*err) __P((const DB_ENV *, int, const char *, ...)); void (*errx) __P((const DB_ENV *, const char *, ...)); int (*open) __P((DB_ENV *, const char *, u_int32_t, int)); int (*remove) __P((DB_ENV *, const char *, u_int32_t)); int (*stat_print) __P((DB_ENV *, u_int32_t)); /* House-keeping. */ int (*fileid_reset) __P((DB_ENV *, char *, int)); int (*is_bigendian) __P((void)); int (*lsn_reset) __P((DB_ENV *, char *, int)); int (*prdbt) __P((DBT *, int, const char *, void *, int (*)(void *, const void *), int)); /* Setters/getters. */ int (*set_alloc) __P((DB_ENV *, void *(*)(size_t), void *(*)(void *, size_t), void (*)(void *))); int (*set_app_dispatch) __P((DB_ENV *, int (*)(DB_ENV *, DBT *, DB_LSN *, db_recops))); int (*get_data_dirs) __P((DB_ENV *, const char ***)); int (*set_data_dir) __P((DB_ENV *, const char *)); int (*get_encrypt_flags) __P((DB_ENV *, u_int32_t *)); int (*set_encrypt) __P((DB_ENV *, const char *, u_int32_t)); void (*set_errcall) __P((DB_ENV *, void (*)(const DB_ENV *, const char *, const char *))); void (*get_errfile) __P((DB_ENV *, FILE **)); void (*set_errfile) __P((DB_ENV *, FILE *)); void (*get_errpfx) __P((DB_ENV *, const char **)); void (*set_errpfx) __P((DB_ENV *, const char *)); int (*set_feedback) __P((DB_ENV *, void (*)(DB_ENV *, int, int))); int (*get_flags) __P((DB_ENV *, u_int32_t *)); int (*set_flags) __P((DB_ENV *, u_int32_t, int)); int (*get_home) __P((DB_ENV *, const char **)); int (*set_intermediate_dir) __P((DB_ENV *, int, u_int32_t)); int (*get_open_flags) __P((DB_ENV *, u_int32_t *)); int (*set_paniccall) __P((DB_ENV *, void (*)(DB_ENV *, int))); int (*set_rpc_server) __P((DB_ENV *, void *, const char *, long, long, u_int32_t)); int (*get_shm_key) __P((DB_ENV *, long *)); int (*set_shm_key) __P((DB_ENV *, long)); void (*set_msgcall) __P((DB_ENV *, void (*)(const DB_ENV *, const char *))); void (*get_msgfile) __P((DB_ENV *, FILE **)); void (*set_msgfile) __P((DB_ENV *, FILE *)); int (*get_tas_spins) __P((DB_ENV *, u_int32_t *)); int (*set_tas_spins) __P((DB_ENV *, u_int32_t)); int (*get_tmp_dir) __P((DB_ENV *, const char **)); int (*set_tmp_dir) __P((DB_ENV *, const char *)); int (*get_verbose) __P((DB_ENV *, u_int32_t, int *)); int (*set_verbose) __P((DB_ENV *, u_int32_t, int)); void *lg_handle; /* Log handle and methods. */ int (*get_lg_bsize) __P((DB_ENV *, u_int32_t *)); int (*set_lg_bsize) __P((DB_ENV *, u_int32_t)); int (*get_lg_dir) __P((DB_ENV *, const char **)); int (*set_lg_dir) __P((DB_ENV *, const char *)); int (*get_lg_max) __P((DB_ENV *, u_int32_t *)); int (*set_lg_max) __P((DB_ENV *, u_int32_t)); int (*get_lg_regionmax) __P((DB_ENV *, u_int32_t *)); int (*set_lg_regionmax) __P((DB_ENV *, u_int32_t)); int (*log_archive) __P((DB_ENV *, char **[], u_int32_t)); int (*log_cursor) __P((DB_ENV *, DB_LOGC **, u_int32_t)); int (*log_file) __P((DB_ENV *, const DB_LSN *, char *, size_t)); int (*log_flush) __P((DB_ENV *, const DB_LSN *)); int (*log_put) __P((DB_ENV *, DB_LSN *, const DBT *, u_int32_t)); int (*log_stat) __P((DB_ENV *, DB_LOG_STAT **, u_int32_t)); int (*log_stat_print) __P((DB_ENV *, u_int32_t)); void *lk_handle; /* Lock handle and methods. */ int (*get_lk_conflicts) __P((DB_ENV *, const u_int8_t **, int *)); int (*set_lk_conflicts) __P((DB_ENV *, u_int8_t *, int)); int (*get_lk_detect) __P((DB_ENV *, u_int32_t *)); int (*set_lk_detect) __P((DB_ENV *, u_int32_t)); int (*set_lk_max) __P((DB_ENV *, u_int32_t)); int (*get_lk_max_locks) __P((DB_ENV *, u_int32_t *)); int (*set_lk_max_locks) __P((DB_ENV *, u_int32_t)); int (*get_lk_max_lockers) __P((DB_ENV *, u_int32_t *)); int (*set_lk_max_lockers) __P((DB_ENV *, u_int32_t)); int (*get_lk_max_objects) __P((DB_ENV *, u_int32_t *)); int (*set_lk_max_objects) __P((DB_ENV *, u_int32_t)); int (*lock_detect) __P((DB_ENV *, u_int32_t, u_int32_t, int *)); int (*lock_get) __P((DB_ENV *, u_int32_t, u_int32_t, const DBT *, db_lockmode_t, DB_LOCK *)); int (*lock_put) __P((DB_ENV *, DB_LOCK *)); int (*lock_id) __P((DB_ENV *, u_int32_t *)); int (*lock_id_free) __P((DB_ENV *, u_int32_t)); int (*lock_stat) __P((DB_ENV *, DB_LOCK_STAT **, u_int32_t)); int (*lock_stat_print) __P((DB_ENV *, u_int32_t)); int (*lock_vec) __P((DB_ENV *, u_int32_t, u_int32_t, DB_LOCKREQ *, int, DB_LOCKREQ **)); void *mp_handle; /* Mpool handle and methods. */ int (*get_cachesize) __P((DB_ENV *, u_int32_t *, u_int32_t *, int *)); int (*set_cachesize) __P((DB_ENV *, u_int32_t, u_int32_t, int)); int (*get_mp_mmapsize) __P((DB_ENV *, size_t *)); int (*set_mp_mmapsize) __P((DB_ENV *, size_t)); int (*get_mp_max_openfd) __P((DB_ENV *, int *)); int (*set_mp_max_openfd) __P((DB_ENV *, int)); int (*get_mp_max_write) __P((DB_ENV *, int *, int *)); int (*set_mp_max_write) __P((DB_ENV *, int, int)); int (*memp_fcreate) __P((DB_ENV *, DB_MPOOLFILE **, u_int32_t)); int (*memp_register) __P((DB_ENV *, int, int (*)(DB_ENV *, db_pgno_t, void *, DBT *), int (*)(DB_ENV *, db_pgno_t, void *, DBT *))); int (*memp_stat) __P((DB_ENV *, DB_MPOOL_STAT **, DB_MPOOL_FSTAT ***, u_int32_t)); int (*memp_stat_print) __P((DB_ENV *, u_int32_t)); int (*memp_sync) __P((DB_ENV *, DB_LSN *)); int (*memp_trickle) __P((DB_ENV *, int, int *)); void *rep_handle; /* Replication handle and methods. */ int (*rep_elect) __P((DB_ENV *, int, int, int, u_int32_t, int *, u_int32_t)); int (*rep_flush) __P((DB_ENV *)); int (*rep_process_message) __P((DB_ENV *, DBT *, DBT *, int *, DB_LSN *)); int (*rep_start) __P((DB_ENV *, DBT *, u_int32_t)); int (*rep_stat) __P((DB_ENV *, DB_REP_STAT **, u_int32_t)); int (*rep_stat_print) __P((DB_ENV *, u_int32_t)); int (*get_rep_limit) __P((DB_ENV *, u_int32_t *, u_int32_t *)); int (*set_rep_limit) __P((DB_ENV *, u_int32_t, u_int32_t)); int (*set_rep_request) __P((DB_ENV *, u_int32_t, u_int32_t)); int (*set_rep_transport) __P((DB_ENV *, int, int (*) (DB_ENV *, const DBT *, const DBT *, const DB_LSN *, int, u_int32_t))); void *tx_handle; /* Txn handle and methods. */ int (*get_tx_max) __P((DB_ENV *, u_int32_t *)); int (*set_tx_max) __P((DB_ENV *, u_int32_t)); int (*get_tx_timestamp) __P((DB_ENV *, time_t *)); int (*set_tx_timestamp) __P((DB_ENV *, time_t *)); int (*txn_begin) __P((DB_ENV *, DB_TXN *, DB_TXN **, u_int32_t)); int (*txn_checkpoint) __P((DB_ENV *, u_int32_t, u_int32_t, u_int32_t)); int (*txn_recover) __P((DB_ENV *, DB_PREPLIST *, long, long *, u_int32_t)); int (*txn_stat) __P((DB_ENV *, DB_TXN_STAT **, u_int32_t)); int (*txn_stat_print) __P((DB_ENV *, u_int32_t)); int (*get_timeout) __P((DB_ENV *, db_timeout_t *, u_int32_t)); int (*set_timeout) __P((DB_ENV *, db_timeout_t, u_int32_t)); #define DB_TEST_ELECTINIT 1 /* after __rep_elect_init */ #define DB_TEST_ELECTVOTE1 2 /* after sending VOTE1 */ #define DB_TEST_POSTDESTROY 3 /* after destroy op */ #define DB_TEST_POSTLOG 4 /* after logging all pages */ #define DB_TEST_POSTLOGMETA 5 /* after logging meta in btree */ #define DB_TEST_POSTOPEN 6 /* after __os_open */ #define DB_TEST_POSTSYNC 7 /* after syncing the log */ #define DB_TEST_PREDESTROY 8 /* before destroy op */ #define DB_TEST_PREOPEN 9 /* before __os_open */ #define DB_TEST_SUBDB_LOCKS 10 /* subdb locking tests */ int test_abort; /* Abort value for testing. */ int test_check; /* Checkpoint value for testing. */ int test_copy; /* Copy value for testing. */ #define DB_ENV_AUTO_COMMIT 0x0000001 /* DB_AUTO_COMMIT. */ #define DB_ENV_CDB 0x0000002 /* DB_INIT_CDB. */ #define DB_ENV_CDB_ALLDB 0x0000004 /* CDB environment wide locking. */ #define DB_ENV_CREATE 0x0000008 /* DB_CREATE set. */ #define DB_ENV_DBLOCAL 0x0000010 /* DB_ENV allocated for private DB. */ #define DB_ENV_DIRECT_DB 0x0000020 /* DB_DIRECT_DB set. */ #define DB_ENV_DIRECT_LOG 0x0000040 /* DB_DIRECT_LOG set. */ #define DB_ENV_DSYNC_LOG 0x0000080 /* DB_DSYNC_LOG set. */ #define DB_ENV_FATAL 0x0000100 /* Doing fatal recovery in env. */ #define DB_ENV_LOCKDOWN 0x0000200 /* DB_LOCKDOWN set. */ #define DB_ENV_LOG_AUTOREMOVE 0x0000400 /* DB_LOG_AUTOREMOVE set. */ #define DB_ENV_LOG_INMEMORY 0x0000800 /* DB_LOG_INMEMORY set. */ #define DB_ENV_NOLOCKING 0x0001000 /* DB_NOLOCKING set. */ #define DB_ENV_NOMMAP 0x0002000 /* DB_NOMMAP set. */ #define DB_ENV_NOPANIC 0x0004000 /* Okay if panic set. */ #define DB_ENV_OPEN_CALLED 0x0008000 /* DB_ENV->open called. */ #define DB_ENV_OVERWRITE 0x0010000 /* DB_OVERWRITE set. */ #define DB_ENV_PRIVATE 0x0020000 /* DB_PRIVATE set. */ #define DB_ENV_REGION_INIT 0x0040000 /* DB_REGION_INIT set. */ #define DB_ENV_RPCCLIENT 0x0080000 /* DB_RPCCLIENT set. */ #define DB_ENV_RPCCLIENT_GIVEN 0x0100000 /* User-supplied RPC client struct */ #define DB_ENV_SYSTEM_MEM 0x0200000 /* DB_SYSTEM_MEM set. */ #define DB_ENV_THREAD 0x0400000 /* DB_THREAD set. */ #define DB_ENV_TIME_NOTGRANTED 0x0800000 /* DB_TIME_NOTGRANTED set. */ #define DB_ENV_TXN_NOSYNC 0x1000000 /* DB_TXN_NOSYNC set. */ #define DB_ENV_TXN_WRITE_NOSYNC 0x2000000 /* DB_TXN_WRITE_NOSYNC set. */ #define DB_ENV_YIELDCPU 0x4000000 /* DB_YIELDCPU set. */ u_int32_t flags; }; #ifndef DB_DBM_HSEARCH #define DB_DBM_HSEARCH 0 /* No historic interfaces by default. */ #endif #if DB_DBM_HSEARCH != 0 /******************************************************* * Dbm/Ndbm historic interfaces. *******************************************************/ typedef struct __db DBM; #define DBM_INSERT 0 /* Flags to dbm_store(). */ #define DBM_REPLACE 1 /* * The DB 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 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) /* * 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 supported 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) /******************************************************* * Hsearch historic interface. *******************************************************/ typedef enum { FIND, ENTER } ACTION; typedef struct entry { char *key; char *data; } ENTRY; #define hcreate(a) __db_hcreate(a) #define hdestroy __db_hdestroy #define hsearch(a, b) __db_hsearch(a, b) #endif /* DB_DBM_HSEARCH */ #if defined(__cplusplus) } #endif #endif /* !_DB_H_ */ /* DO NOT EDIT: automatically built by dist/s_include. */ #ifndef _DB_EXT_PROT_IN_ #define _DB_EXT_PROT_IN_ #if defined(__cplusplus) extern "C" { #endif int db_create __P((DB **, DB_ENV *, u_int32_t)); char *db_strerror __P((int)); int db_env_create __P((DB_ENV **, u_int32_t)); char *db_version __P((int *, int *, int *)); int log_compare __P((const DB_LSN *, const DB_LSN *)); int db_env_set_func_close __P((int (*)(int))); int db_env_set_func_dirfree __P((void (*)(char **, int))); int db_env_set_func_dirlist __P((int (*)(const char *, char ***, int *))); int db_env_set_func_exists __P((int (*)(const char *, int *))); int db_env_set_func_free __P((void (*)(void *))); int db_env_set_func_fsync __P((int (*)(int))); int db_env_set_func_ftruncate __P((int (*)(int, off_t))); int db_env_set_func_ioinfo __P((int (*)(const char *, int, u_int32_t *, u_int32_t *, u_int32_t *))); int db_env_set_func_malloc __P((void *(*)(size_t))); int db_env_set_func_map __P((int (*)(char *, size_t, int, int, void **))); int db_env_set_func_pread __P((ssize_t (*)(int, void *, size_t, off_t))); int db_env_set_func_pwrite __P((ssize_t (*)(int, const void *, size_t, off_t))); int db_env_set_func_open __P((int (*)(const char *, int, ...))); int db_env_set_func_read __P((ssize_t (*)(int, void *, size_t))); int db_env_set_func_realloc __P((void *(*)(void *, size_t))); int db_env_set_func_rename __P((int (*)(const char *, const char *))); int db_env_set_func_seek __P((int (*)(int, off_t, int))); int db_env_set_func_sleep __P((int (*)(u_long, u_long))); int db_env_set_func_unlink __P((int (*)(const char *))); int db_env_set_func_unmap __P((int (*)(void *, size_t))); int db_env_set_func_write __P((ssize_t (*)(int, const void *, size_t))); int db_env_set_func_yield __P((int (*)(void))); int db_sequence_create __P((DB_SEQUENCE **, DB *, u_int32_t)); #if DB_DBM_HSEARCH != 0 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)); int __db_dbm_close __P((void)); int __db_dbm_delete __P((datum)); 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_store __P((datum, datum)); #endif #if DB_DBM_HSEARCH != 0 int __db_hcreate __P((size_t)); ENTRY *__db_hsearch __P((ENTRY, ACTION)); void __db_hdestroy __P((void)); #endif #if defined(__cplusplus) } #endif #endif /* !_DB_EXT_PROT_IN_ */