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Comparing BDB/BDB.pm (file contents):
Revision 1.12 by root, Mon Aug 13 12:07:46 2007 UTC vs.
Revision 1.14 by root, Thu Sep 13 12:29:49 2007 UTC

… …
126=head3 BDB functions 126=head3 BDB functions
127 127
128Functions in the BDB namespace, exported by default: 128Functions in the BDB namespace, exported by default:
129 129
130 $env = db_env_create (U32 env_flags = 0) 130 $env = db_env_create (U32 env_flags = 0)
131 flags: RPCCLIENT
131 132
132 db_env_open (DB_ENV *env, octetstring db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef) 133 db_env_open (DB_ENV *env, octetstring db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef)
134 open_flags: INIT_CDB INIT_LOCK INIT_LOG INIT_MPOOL INIT_REP INIT_TXN RECOVER RECOVER_FATAL USE_ENVIRON USE_ENVIRON_ROOT CREATE LOCKDOWN PRIVATE REGISTER SYSTEM_MEM
133 db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = &PL_sv_undef) 135 db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = &PL_sv_undef)
134 db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = &PL_sv_undef) 136 db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
137 flags: FORCE
135 db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = &PL_sv_undef) 138 db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = &PL_sv_undef)
139 atype: LOCK_DEFAULT LOCK_EXPIRE LOCK_MAXLOCKS LOCK_MAXWRITE LOCK_MINLOCKS LOCK_MINWRITE LOCK_OLDEST LOCK_RANDOM LOCK_YOUNGEST
136 db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = &PL_sv_undef) 140 db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = &PL_sv_undef)
137 db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = &PL_sv_undef) 141 db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = &PL_sv_undef)
138 142
139 $db = db_create (DB_ENV *env = 0, U32 flags = 0) 143 $db = db_create (DB_ENV *env = 0, U32 flags = 0)
144 flags: XA_CREATE
140 145
141 db_open (DB *db, DB_TXN_ornull *txnid, octetstring file, octetstring database, int type, U32 flags, int mode, SV *callback = &PL_sv_undef) 146 db_open (DB *db, DB_TXN_ornull *txnid, octetstring file, octetstring database, int type, U32 flags, int mode, SV *callback = &PL_sv_undef)
147 flags: AUTO_COMMIT CREATE EXCL MULTIVERSION NOMMAP RDONLY READ_UNCOMMITTED THREAD TRUNCATE
142 db_close (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef) 148 db_close (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
149 flags: DB_NOSYNC
143 db_compact (DB *db, DB_TXN_ornull *txn = 0, SV *start = 0, SV *stop = 0, SV *unused1 = 0, U32 flags = DB_FREE_SPACE, SV *unused2 = 0, SV *callback = &PL_sv_undef) 150 db_compact (DB *db, DB_TXN_ornull *txn = 0, SV *start = 0, SV *stop = 0, SV *unused1 = 0, U32 flags = DB_FREE_SPACE, SV *unused2 = 0, SV *callback = &PL_sv_undef)
151 flags: FREELIST_ONLY FREE_SPACE
144 db_sync (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef) 152 db_sync (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
145 db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = &PL_sv_undef) 153 db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = &PL_sv_undef)
146 db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef) 154 db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
155 flags: APPEND NODUPDATA NOOVERWRITE
147 db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef) 156 db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
157 flags: CONSUME CONSUME_WAIT GET_BOTH SET_RECNO MULTIPLE READ_COMMITTED READ_UNCOMMITTED RMW
148 db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef) 158 db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
159 flags: CONSUME CONSUME_WAIT GET_BOTH SET_RECNO MULTIPLE READ_COMMITTED READ_UNCOMMITTED RMW
149 db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef) 160 db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
150 db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef) 161 db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)
162 flags: TXN_NOSYNC TXN_SYNC
151 db_txn_abort (DB_TXN *txn, SV *callback = &PL_sv_undef) 163 db_txn_abort (DB_TXN *txn, SV *callback = &PL_sv_undef)
164
152 db_c_close (DBC *dbc, SV *callback = &PL_sv_undef) 165 db_c_close (DBC *dbc, SV *callback = &PL_sv_undef)
153 db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = &PL_sv_undef) 166 db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = &PL_sv_undef)
154 db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef) 167 db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
168 flags: AFTER BEFORE CURRENT KEYFIRST KEYLAST NODUPDATA
155 db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef) 169 db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
170 flags: CURRENT FIRST GET_BOTH GET_BOTH_RANGE GET_RECNO JOIN_ITEM LAST NEXT NEXT_DUP NEXT_NODUP PREV PREV_DUP PREV_NODUP SET SET_RANGE SET_RECNO READ_UNCOMMITTED MULTIPLE MULTIPLE_KEY RMW
156 db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef) 171 db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
157 db_c_del (DBC *dbc, U32 flags = 0, SV *callback = &PL_sv_undef) 172 db_c_del (DBC *dbc, U32 flags = 0, SV *callback = &PL_sv_undef)
158 173
159 db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef) 174 db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
175 flags: CREATE EXCL
160 db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = &PL_sv_undef) 176 db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = &PL_sv_undef)
161 db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = &PL_sv_undef) 177 db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = &PL_sv_undef)
178 flags: TXN_NOSYNC
162 db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = &PL_sv_undef) 179 db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
163 180 flags: TXN_NOSYNC
164 181
165=head3 DB_ENV/database environment methods 182=head3 DB_ENV/database environment methods
166 183
167Methods available on DB_ENV/$env handles: 184Methods available on DB_ENV/$env handles:
168 185
… …
191 $int = $env->set_lk_max_objects (U32 max) 208 $int = $env->set_lk_max_objects (U32 max)
192 $int = $env->set_lg_bsize (U32 max) 209 $int = $env->set_lg_bsize (U32 max)
193 $int = $env->set_lg_max (U32 max) 210 $int = $env->set_lg_max (U32 max)
194 211
195 $txn = $env->txn_begin (DB_TXN_ornull *parent = 0, U32 flags = 0) 212 $txn = $env->txn_begin (DB_TXN_ornull *parent = 0, U32 flags = 0)
213 flags: READ_COMMITTED READ_UNCOMMITTED TXN_NOSYNC TXN_NOWAIT TXN_SNAPSHOT TXN_SYNC TXN_WAIT TXN_WRITE_NOSYNC
196 214
197=head4 Example: 215=head4 Example:
198 216
199 use AnyEvent; 217 use AnyEvent;
200 use BDB; 218 use BDB;
… …
229 SvREFCNT_dec (env); 247 SvREFCNT_dec (env);
230 } 248 }
231 249
232 $int = $db->set_cachesize (U32 gbytes, U32 bytes, int ncache = 0) 250 $int = $db->set_cachesize (U32 gbytes, U32 bytes, int ncache = 0)
233 $int = $db->set_flags (U32 flags) 251 $int = $db->set_flags (U32 flags)
252 flags: CHKSUM ENCRYPT TXN_NOT_DURABLE
253 Btree: DUP DUPSORT RECNUM REVSPLITOFF
254 Hash: DUP DUPSORT
255 Queue: INORDER
256 Recno: RENUMBER SNAPSHOT
257
234 $int = $db->set_encrypt (const char *password, U32 flags) 258 $int = $db->set_encrypt (const char *password, U32 flags)
235 $int = $db->set_lorder (int lorder) 259 $int = $db->set_lorder (int lorder)
236 $int = $db->set_bt_minkey (U32 minkey) 260 $int = $db->set_bt_minkey (U32 minkey)
237 $int = $db->set_re_delim (int delim) 261 $int = $db->set_re_delim (int delim)
238 $int = $db->set_re_pad (int re_pad) 262 $int = $db->set_re_pad (int re_pad)
… …
241 $int = $db->set_h_ffactor (U32 h_ffactor) 265 $int = $db->set_h_ffactor (U32 h_ffactor)
242 $int = $db->set_h_nelem (U32 h_nelem) 266 $int = $db->set_h_nelem (U32 h_nelem)
243 $int = $db->set_q_extentsize (U32 extentsize) 267 $int = $db->set_q_extentsize (U32 extentsize)
244 268
245 $dbc = $db->cursor (DB_TXN_ornull *txn = 0, U32 flags = 0) 269 $dbc = $db->cursor (DB_TXN_ornull *txn = 0, U32 flags = 0)
270 flags: READ_COMMITTED READ_UNCOMMITTED WRITECURSOR TXN_SNAPSHOT
246 $seq = $db->sequence (U32 flags = 0) 271 $seq = $db->sequence (U32 flags = 0)
247 272
248=head4 Example: 273=head4 Example:
249 274
250 my $db = db_create $env; 275 my $db = db_create $env;
… …
270 CODE: 295 CODE:
271 if (txn) 296 if (txn)
272 txn->abort (txn); 297 txn->abort (txn);
273 298
274 $int = $txn->set_timeout (NV timeout, U32 flags) 299 $int = $txn->set_timeout (NV timeout, U32 flags)
300 flags: SET_LOCK_TIMEOUT SET_TXN_TIMEOUT
275 301
276 302
277=head3 DBC/cursor methods 303=head3 DBC/cursor methods
278 304
279Methods available on DBC/$dbc handles: 305Methods available on DBC/$dbc handles:
… …
306 seq->close (seq, 0); 332 seq->close (seq, 0);
307 333
308 $int = $seq->initial_value (db_seq_t value) 334 $int = $seq->initial_value (db_seq_t value)
309 $int = $seq->set_cachesize (U32 size) 335 $int = $seq->set_cachesize (U32 size)
310 $int = $seq->set_flags (U32 flags) 336 $int = $seq->set_flags (U32 flags)
337 flags: SEQ_DEC SEQ_INC SEQ_WRAP
311 $int = $seq->set_range (db_seq_t min, db_seq_t max) 338 $int = $seq->set_range (db_seq_t min, db_seq_t max)
312 339
313=head4 Example: 340=head4 Example:
314 341
315 my $seq = $db->sequence; 342 my $seq = $db->sequence;
… …
571bytes of memory. In addition, stat requests need a stat buffer (possibly 598bytes of memory. In addition, stat requests need a stat buffer (possibly
572a few hundred bytes), readdir requires a result buffer and so on. Perl 599a few hundred bytes), readdir requires a result buffer and so on. Perl
573scalars and other data passed into aio requests will also be locked and 600scalars and other data passed into aio requests will also be locked and
574will consume memory till the request has entered the done state. 601will consume memory till the request has entered the done state.
575 602
576This is now awfully much, so queuing lots of requests is not usually a 603This is not awfully much, so queuing lots of requests is not usually a
577problem. 604problem.
578 605
579Per-thread usage: 606Per-thread usage:
580 607
581In the execution phase, some aio requests require more memory for 608In the execution phase, some aio requests require more memory for

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