rep_util.c
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:20k
- /*-
- * See the file LICENSE for redistribution information.
- *
- * Copyright (c) 2001-2002
- * Sleepycat Software. All rights reserved.
- */
- #include "db_config.h"
- #ifndef lint
- static const char revid[] = "$Id: rep_util.c,v 1.51 2002/09/05 02:30:00 margo Exp $";
- #endif /* not lint */
- #ifndef NO_SYSTEM_INCLUDES
- #include <stdlib.h>
- #include <string.h>
- #endif
- #include "db_int.h"
- #include "dbinc/db_page.h"
- #include "dbinc/btree.h"
- #include "dbinc/fop.h"
- #include "dbinc/hash.h"
- #include "dbinc/log.h"
- #include "dbinc/qam.h"
- #include "dbinc/rep.h"
- #include "dbinc/txn.h"
- /*
- * rep_util.c:
- * Miscellaneous replication-related utility functions, including
- * those called by other subsystems.
- */
- static int __rep_cmp_bylsn __P((const void *, const void *));
- static int __rep_cmp_bypage __P((const void *, const void *));
- #ifdef REP_DIAGNOSTIC
- static void __rep_print_logmsg __P((DB_ENV *, const DBT *, DB_LSN *));
- #endif
- /*
- * __rep_check_alloc --
- * Make sure the array of TXN_REC entries is of at least size n.
- * (This function is called by the __*_getpgnos() functions in
- * *.src.)
- *
- * PUBLIC: int __rep_check_alloc __P((DB_ENV *, TXN_RECS *, int));
- */
- int
- __rep_check_alloc(dbenv, r, n)
- DB_ENV *dbenv;
- TXN_RECS *r;
- int n;
- {
- int nalloc, ret;
- while (r->nalloc < r->npages + n) {
- nalloc = r->nalloc == 0 ? 20 : r->nalloc * 2;
- if ((ret = __os_realloc(dbenv, nalloc * sizeof(LSN_PAGE),
- &r->array)) != 0)
- return (ret);
- r->nalloc = nalloc;
- }
- return (0);
- }
- /*
- * __rep_send_message --
- * This is a wrapper for sending a message. It takes care of constructing
- * the REP_CONTROL structure and calling the user's specified send function.
- *
- * PUBLIC: int __rep_send_message __P((DB_ENV *, int,
- * PUBLIC: u_int32_t, DB_LSN *, const DBT *, u_int32_t));
- */
- int
- __rep_send_message(dbenv, eid, rtype, lsnp, dbtp, flags)
- DB_ENV *dbenv;
- int eid;
- u_int32_t rtype;
- DB_LSN *lsnp;
- const DBT *dbtp;
- u_int32_t flags;
- {
- DB_REP *db_rep;
- REP *rep;
- DBT cdbt, scrap_dbt;
- REP_CONTROL cntrl;
- u_int32_t send_flags;
- int ret;
- db_rep = dbenv->rep_handle;
- rep = db_rep->region;
- /* Set up control structure. */
- memset(&cntrl, 0, sizeof(cntrl));
- if (lsnp == NULL)
- ZERO_LSN(cntrl.lsn);
- else
- cntrl.lsn = *lsnp;
- cntrl.rectype = rtype;
- cntrl.flags = flags;
- cntrl.rep_version = DB_REPVERSION;
- cntrl.log_version = DB_LOGVERSION;
- MUTEX_LOCK(dbenv, db_rep->mutexp);
- cntrl.gen = rep->gen;
- MUTEX_UNLOCK(dbenv, db_rep->mutexp);
- memset(&cdbt, 0, sizeof(cdbt));
- cdbt.data = &cntrl;
- cdbt.size = sizeof(cntrl);
- /* Don't assume the send function will be tolerant of NULL records. */
- if (dbtp == NULL) {
- memset(&scrap_dbt, 0, sizeof(DBT));
- dbtp = &scrap_dbt;
- }
- send_flags = (LF_ISSET(DB_PERMANENT) ? DB_REP_PERMANENT : 0);
- #if 0
- __rep_print_message(dbenv, eid, &cntrl, "rep_send_message");
- #endif
- #ifdef REP_DIAGNOSTIC
- if (rtype == REP_LOG)
- __rep_print_logmsg(dbenv, dbtp, lsnp);
- #endif
- ret = db_rep->rep_send(dbenv, &cdbt, dbtp, eid, send_flags);
- /*
- * We don't hold the rep lock, so this could miscount if we race.
- * I don't think it's worth grabbing the mutex for that bit of
- * extra accuracy.
- */
- if (ret == 0)
- rep->stat.st_msgs_sent++;
- else
- rep->stat.st_msgs_send_failures++;
- return (ret);
- }
- #ifdef REP_DIAGNOSTIC
- /*
- * __rep_print_logmsg --
- * This is a debugging routine for printing out log records that
- * we are about to transmit to a client.
- */
- static void
- __rep_print_logmsg(dbenv, logdbt, lsnp)
- DB_ENV *dbenv;
- const DBT *logdbt;
- DB_LSN *lsnp;
- {
- /* Static structures to hold the printing functions. */
- static int (**ptab)__P((DB_ENV *,
- DBT *, DB_LSN *, db_recops, void *)) = NULL;
- size_t ptabsize = 0;
- if (ptabsize == 0) {
- /* Initialize the table. */
- (void)__bam_init_print(dbenv, &ptab, &ptabsize);
- (void)__crdel_init_print(dbenv, &ptab, &ptabsize);
- (void)__db_init_print(dbenv, &ptab, &ptabsize);
- (void)__dbreg_init_print(dbenv, &ptab, &ptabsize);
- (void)__fop_init_print(dbenv, &ptab, &ptabsize);
- (void)__qam_init_print(dbenv, &ptab, &ptabsize);
- (void)__ham_init_print(dbenv, &ptab, &ptabsize);
- (void)__txn_init_print(dbenv, &ptab, &ptabsize);
- }
- (void)__db_dispatch(dbenv,
- ptab, ptabsize, (DBT *)logdbt, lsnp, DB_TXN_PRINT, NULL);
- }
- #endif
- /*
- * __rep_new_master --
- * Called after a master election to sync back up with a new master.
- * It's possible that we already know of this new master in which case
- * we don't need to do anything.
- *
- * This is written assuming that this message came from the master; we
- * need to enforce that in __rep_process_record, but right now, we have
- * no way to identify the master.
- *
- * PUBLIC: int __rep_new_master __P((DB_ENV *, REP_CONTROL *, int));
- */
- int
- __rep_new_master(dbenv, cntrl, eid)
- DB_ENV *dbenv;
- REP_CONTROL *cntrl;
- int eid;
- {
- DB_LOG *dblp;
- DB_LOGC *logc;
- DB_LSN last_lsn, lsn;
- DB_REP *db_rep;
- DBT dbt;
- LOG *lp;
- REP *rep;
- int change, ret, t_ret;
- db_rep = dbenv->rep_handle;
- rep = db_rep->region;
- MUTEX_LOCK(dbenv, db_rep->mutexp);
- ELECTION_DONE(rep);
- change = rep->gen != cntrl->gen || rep->master_id != eid;
- if (change) {
- rep->gen = cntrl->gen;
- rep->master_id = eid;
- F_SET(rep, REP_F_RECOVER);
- rep->stat.st_master_changes++;
- }
- MUTEX_UNLOCK(dbenv, db_rep->mutexp);
- if (!change)
- return (0);
- /*
- * If the master changed, we need to start the process of
- * figuring out what our last valid log record is. However,
- * if both the master and we agree that the max LSN is 0,0,
- * then there is no recovery to be done. If we are at 0 and
- * the master is not, then we just need to request all the log
- * records from the master.
- */
- dblp = dbenv->lg_handle;
- lp = dblp->reginfo.primary;
- R_LOCK(dbenv, &dblp->reginfo);
- last_lsn = lsn = lp->lsn;
- if (last_lsn.offset > sizeof(LOGP))
- last_lsn.offset -= lp->len;
- R_UNLOCK(dbenv, &dblp->reginfo);
- if (IS_INIT_LSN(lsn) || IS_ZERO_LSN(lsn)) {
- empty: MUTEX_LOCK(dbenv, db_rep->mutexp);
- F_CLR(rep, REP_F_RECOVER);
- MUTEX_UNLOCK(dbenv, db_rep->mutexp);
- if (IS_INIT_LSN(cntrl->lsn))
- ret = 0;
- else
- ret = __rep_send_message(dbenv, rep->master_id,
- REP_ALL_REQ, &lsn, NULL, 0);
- if (ret == 0)
- ret = DB_REP_NEWMASTER;
- return (ret);
- } else if (last_lsn.offset <= sizeof(LOGP)) {
- /*
- * We have just changed log files and need to set lastlsn
- * to the last record in the previous log files.
- */
- if ((ret = dbenv->log_cursor(dbenv, &logc, 0)) != 0)
- return (ret);
- memset(&dbt, 0, sizeof(dbt));
- ret = logc->get(logc, &last_lsn, &dbt, DB_LAST);
- if ((t_ret = logc->close(logc, 0)) != 0 && ret == 0)
- ret = t_ret;
- if (ret == DB_NOTFOUND)
- goto empty;
- if (ret != 0)
- return (ret);
- }
- R_LOCK(dbenv, &dblp->reginfo);
- lp->verify_lsn = last_lsn;
- R_UNLOCK(dbenv, &dblp->reginfo);
- if ((ret = __rep_send_message(dbenv,
- eid, REP_VERIFY_REQ, &last_lsn, NULL, 0)) != 0)
- return (ret);
- return (DB_REP_NEWMASTER);
- }
- /*
- * __rep_lockpgno_init
- * Create a dispatch table for acquiring locks on each log record.
- *
- * PUBLIC: int __rep_lockpgno_init __P((DB_ENV *,
- * PUBLIC: int (***)(DB_ENV *, DBT *, DB_LSN *, db_recops, void *),
- * PUBLIC: size_t *));
- */
- int
- __rep_lockpgno_init(dbenv, dtabp, dtabsizep)
- DB_ENV *dbenv;
- int (***dtabp)__P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
- size_t *dtabsizep;
- {
- int ret;
- /* Initialize dispatch table. */
- *dtabsizep = 0;
- *dtabp = NULL;
- if ((ret = __bam_init_getpgnos(dbenv, dtabp, dtabsizep)) != 0 ||
- (ret = __crdel_init_getpgnos(dbenv, dtabp, dtabsizep)) != 0 ||
- (ret = __db_init_getpgnos(dbenv, dtabp, dtabsizep)) != 0 ||
- (ret = __dbreg_init_getpgnos(dbenv, dtabp, dtabsizep)) != 0 ||
- (ret = __fop_init_getpgnos(dbenv, dtabp, dtabsizep)) != 0 ||
- (ret = __qam_init_getpgnos(dbenv, dtabp, dtabsizep)) != 0 ||
- (ret = __ham_init_getpgnos(dbenv, dtabp, dtabsizep)) != 0 ||
- (ret = __txn_init_getpgnos(dbenv, dtabp, dtabsizep)) != 0)
- return (ret);
- return (0);
- }
- /*
- * __rep_unlockpages --
- * Unlock the pages locked in __rep_lockpages.
- *
- * PUBLIC: int __rep_unlockpages __P((DB_ENV *, u_int32_t));
- */
- int
- __rep_unlockpages(dbenv, lid)
- DB_ENV *dbenv;
- u_int32_t lid;
- {
- DB_LOCKREQ req, *lvp;
- req.op = DB_LOCK_PUT_ALL;
- return (dbenv->lock_vec(dbenv, lid, 0, &req, 1, &lvp));
- }
- /*
- * __rep_lockpages --
- * Called to gather and lock pages in preparation for both
- * single transaction apply as well as client synchronization
- * with a new master. A non-NULL key_lsn means that we're locking
- * in order to apply a single log record during client recovery
- * to the joint LSN. A non-NULL max_lsn means that we are applying
- * a transaction whose commit is at max_lsn.
- *
- * PUBLIC: int __rep_lockpages __P((DB_ENV *,
- * PUBLIC: int (**)(DB_ENV *, DBT *, DB_LSN *, db_recops, void *),
- * PUBLIC: size_t, DB_LSN *, DB_LSN *, TXN_RECS *, u_int32_t));
- */
- int
- __rep_lockpages(dbenv, dtab, dtabsize, key_lsn, max_lsn, recs, lid)
- DB_ENV *dbenv;
- int (**dtab)__P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
- size_t dtabsize;
- DB_LSN *key_lsn, *max_lsn;
- TXN_RECS *recs;
- u_int32_t lid;
- {
- DBT data_dbt, lo;
- DB_LOCK l;
- DB_LOCKREQ *lvp;
- DB_LOGC *logc;
- DB_LSN tmp_lsn;
- TXN_RECS tmp, *t;
- db_pgno_t cur_pgno;
- linfo_t locks;
- int i, ret, t_ret, unique;
- u_int32_t cur_fid;
- /*
- * There are two phases: First, we have to traverse backwards through
- * the log records gathering the list of all the pages accessed. Once
- * we have this information we can acquire all the locks we need.
- */
- /* Initialization */
- memset(&locks, 0, sizeof(locks));
- ret = 0;
- t = recs != NULL ? recs : &tmp;
- t->npages = t->nalloc = 0;
- t->array = NULL;
- /*
- * We've got to be in one mode or the other; else life will either
- * be excessively boring or overly exciting.
- */
- DB_ASSERT(key_lsn != NULL || max_lsn != NULL);
- DB_ASSERT(key_lsn == NULL || max_lsn == NULL);
- /*
- * Phase 1: Fill in the pgno array.
- */
- memset(&data_dbt, 0, sizeof(data_dbt));
- if (F_ISSET(dbenv, DB_ENV_THREAD))
- F_SET(&data_dbt, DB_DBT_REALLOC);
- /* Single transaction apply. */
- if (max_lsn != NULL) {
- DB_ASSERT(0); /* XXX */
- /*
- tmp_lsn = *max_lsn;
- if ((ret = __rep_apply_thread(dbenv, dtab, dtabsize,
- &data_dbt, &tmp_lsn, t)) != 0)
- goto err;
- */
- }
- /* In recovery. */
- if (key_lsn != NULL) {
- if ((ret = dbenv->log_cursor(dbenv, &logc, 0)) != 0)
- goto err;
- ret = logc->get(logc, key_lsn, &data_dbt, DB_SET);
- /* Save lsn values, since dispatch functions can change them. */
- tmp_lsn = *key_lsn;
- ret = __db_dispatch(dbenv,
- dtab, dtabsize, &data_dbt, &tmp_lsn, DB_TXN_GETPGNOS, t);
- if ((t_ret = logc->close(logc, 0)) != 0 && ret == 0)
- ret = t_ret;
- /*
- * If ret == DB_DELETED, this record refers to a temporary
- * file and there's nothing to apply.
- */
- if (ret == DB_DELETED) {
- ret = 0;
- goto out;
- } else if (ret != 0)
- goto err;
- }
- if (t->npages == 0)
- goto out;
- /* Phase 2: Write lock all the pages. */
- /* Sort the entries in the array by page number. */
- qsort(t->array, t->npages, sizeof(LSN_PAGE), __rep_cmp_bypage);
- /* Count the number of unique pages. */
- cur_fid = DB_LOGFILEID_INVALID;
- cur_pgno = PGNO_INVALID;
- unique = 0;
- for (i = 0; i < t->npages; i++) {
- if (F_ISSET(&t->array[i], LSN_PAGE_NOLOCK))
- continue;
- if (t->array[i].pgdesc.pgno != cur_pgno ||
- t->array[i].fid != cur_fid) {
- cur_pgno = t->array[i].pgdesc.pgno;
- cur_fid = t->array[i].fid;
- unique++;
- }
- }
- if (unique == 0)
- goto out;
- /* Handle single lock case specially, else allocate space for locks. */
- if (unique == 1) {
- memset(&lo, 0, sizeof(lo));
- lo.data = &t->array[0].pgdesc;
- lo.size = sizeof(t->array[0].pgdesc);
- ret = dbenv->lock_get(dbenv, lid, 0, &lo, DB_LOCK_WRITE, &l);
- goto out2;
- }
- /* Multi-lock case. */
- locks.n = unique;
- if ((ret = __os_calloc(dbenv,
- unique, sizeof(DB_LOCKREQ), &locks.reqs)) != 0)
- goto err;
- if ((ret = __os_calloc(dbenv, unique, sizeof(DBT), &locks.objs)) != 0)
- goto err;
- unique = 0;
- cur_fid = DB_LOGFILEID_INVALID;
- cur_pgno = PGNO_INVALID;
- for (i = 0; i < t->npages; i++) {
- if (F_ISSET(&t->array[i], LSN_PAGE_NOLOCK))
- continue;
- if (t->array[i].pgdesc.pgno != cur_pgno ||
- t->array[i].fid != cur_fid) {
- cur_pgno = t->array[i].pgdesc.pgno;
- cur_fid = t->array[i].fid;
- locks.reqs[unique].op = DB_LOCK_GET;
- locks.reqs[unique].mode = DB_LOCK_WRITE;
- locks.reqs[unique].obj = &locks.objs[unique];
- locks.objs[unique].data = &t->array[i].pgdesc;
- locks.objs[unique].size = sizeof(t->array[i].pgdesc);
- unique++;
- }
- }
- /* Finally, get the locks. */
- if ((ret =
- dbenv->lock_vec(dbenv, lid, 0, locks.reqs, unique, &lvp)) != 0) {
- /*
- * If we were unsuccessful, unlock any locks we acquired before
- * the error and return the original error value.
- */
- (void)__rep_unlockpages(dbenv, lid);
- }
- err:
- out: if (locks.objs != NULL)
- __os_free(dbenv, locks.objs);
- if (locks.reqs != NULL)
- __os_free(dbenv, locks.reqs);
- /*
- * Before we return, sort by LSN so that we apply records in the
- * right order.
- */
- qsort(t->array, t->npages, sizeof(LSN_PAGE), __rep_cmp_bylsn);
- out2: if ((ret != 0 || recs == NULL) && t->nalloc != 0) {
- __os_free(dbenv, t->array);
- t->array = NULL;
- t->npages = t->nalloc = 0;
- }
- if (F_ISSET(&data_dbt, DB_DBT_REALLOC) && data_dbt.data != NULL)
- __os_ufree(dbenv, data_dbt.data);
- return (ret);
- }
- /*
- * __rep_cmp_bypage and __rep_cmp_bylsn --
- * Sort functions for qsort. "bypage" sorts first by page numbers and
- * then by the LSN. "bylsn" sorts first by the LSN, then by page numbers.
- */
- static int
- __rep_cmp_bypage(a, b)
- const void *a, *b;
- {
- LSN_PAGE *ap, *bp;
- ap = (LSN_PAGE *)a;
- bp = (LSN_PAGE *)b;
- if (ap->fid < bp->fid)
- return (-1);
- if (ap->fid > bp->fid)
- return (1);
- if (ap->pgdesc.pgno < bp->pgdesc.pgno)
- return (-1);
- if (ap->pgdesc.pgno > bp->pgdesc.pgno)
- return (1);
- if (ap->lsn.file < bp->lsn.file)
- return (-1);
- if (ap->lsn.file > bp->lsn.file)
- return (1);
- if (ap->lsn.offset < bp->lsn.offset)
- return (-1);
- if (ap->lsn.offset > bp->lsn.offset)
- return (1);
- return (0);
- }
- static int
- __rep_cmp_bylsn(a, b)
- const void *a, *b;
- {
- LSN_PAGE *ap, *bp;
- ap = (LSN_PAGE *)a;
- bp = (LSN_PAGE *)b;
- if (ap->lsn.file < bp->lsn.file)
- return (-1);
- if (ap->lsn.file > bp->lsn.file)
- return (1);
- if (ap->lsn.offset < bp->lsn.offset)
- return (-1);
- if (ap->lsn.offset > bp->lsn.offset)
- return (1);
- if (ap->fid < bp->fid)
- return (-1);
- if (ap->fid > bp->fid)
- return (1);
- if (ap->pgdesc.pgno < bp->pgdesc.pgno)
- return (-1);
- if (ap->pgdesc.pgno > bp->pgdesc.pgno)
- return (1);
- return (0);
- }
- /*
- * __rep_is_client
- * Used by other subsystems to figure out if this is a replication
- * client sites.
- *
- * PUBLIC: int __rep_is_client __P((DB_ENV *));
- */
- int
- __rep_is_client(dbenv)
- DB_ENV *dbenv;
- {
- DB_REP *db_rep;
- REP *rep;
- int ret;
- if ((db_rep = dbenv->rep_handle) == NULL)
- return (0);
- rep = db_rep->region;
- MUTEX_LOCK(dbenv, db_rep->mutexp);
- ret = F_ISSET(rep, REP_F_UPGRADE | REP_F_LOGSONLY);
- MUTEX_UNLOCK(dbenv, db_rep->mutexp);
- return (ret);
- }
- /*
- * __rep_send_vote
- * Send this site's vote for the election.
- *
- * PUBLIC: int __rep_send_vote __P((DB_ENV *, DB_LSN *, int, int, int));
- */
- int
- __rep_send_vote(dbenv, lsnp, nsites, pri, tiebreaker)
- DB_ENV *dbenv;
- DB_LSN *lsnp;
- int nsites, pri, tiebreaker;
- {
- DBT vote_dbt;
- REP_VOTE_INFO vi;
- memset(&vi, 0, sizeof(vi));
- vi.priority = pri;
- vi.nsites = nsites;
- vi.tiebreaker = tiebreaker;
- memset(&vote_dbt, 0, sizeof(vote_dbt));
- vote_dbt.data = &vi;
- vote_dbt.size = sizeof(vi);
- return (__rep_send_message(dbenv,
- DB_EID_BROADCAST, REP_VOTE1, lsnp, &vote_dbt, 0));
- }
- /*
- * __rep_grow_sites --
- * Called to allocate more space in the election tally information.
- * Called with the rep mutex held. We need to call the region mutex, so
- * we need to make sure that we *never* acquire those mutexes in the
- * opposite order.
- *
- * PUBLIC: int __rep_grow_sites __P((DB_ENV *dbenv, int nsites));
- */
- int
- __rep_grow_sites(dbenv, nsites)
- DB_ENV *dbenv;
- int nsites;
- {
- REGENV *renv;
- REGINFO *infop;
- REP *rep;
- int nalloc, ret, *tally;
- rep = ((DB_REP *)dbenv->rep_handle)->region;
- /*
- * Allocate either twice the current allocation or nsites,
- * whichever is more.
- */
- nalloc = 2 * rep->asites;
- if (nalloc < nsites)
- nalloc = nsites;
- infop = dbenv->reginfo;
- renv = infop->primary;
- MUTEX_LOCK(dbenv, &renv->mutex);
- if ((ret = __db_shalloc(infop->addr,
- sizeof(nalloc * sizeof(int)), sizeof(int), &tally)) == 0) {
- if (rep->tally_off != INVALID_ROFF)
- __db_shalloc_free(infop->addr,
- R_ADDR(infop, rep->tally_off));
- rep->asites = nalloc;
- rep->nsites = nsites;
- rep->tally_off = R_OFFSET(infop, tally);
- }
- MUTEX_UNLOCK(dbenv, &renv->mutex);
- return (ret);
- }
- #ifdef NOTYET
- static int __rep_send_file __P((DB_ENV *, DBT *, u_int32_t));
- /*
- * __rep_send_file --
- * Send an entire file, one block at a time.
- */
- static int
- __rep_send_file(dbenv, rec, eid)
- DB_ENV *dbenv;
- DBT *rec;
- u_int32_t eid;
- {
- DB *dbp;
- DB_LOCK lk;
- DB_MPOOLFILE *mpf;
- DBC *dbc;
- DBT rec_dbt;
- PAGE *pagep;
- db_pgno_t last_pgno, pgno;
- int ret, t_ret;
- dbp = NULL;
- dbc = NULL;
- pagep = NULL;
- mpf = NULL;
- LOCK_INIT(lk);
- if ((ret = db_create(&dbp, dbenv, 0)) != 0)
- goto err;
- if ((ret = dbp->open(dbp, rec->data, NULL, DB_UNKNOWN, 0, 0)) != 0)
- goto err;
- if ((ret = dbp->cursor(dbp, NULL, &dbc, 0)) != 0)
- goto err;
- /*
- * Force last_pgno to some value that will let us read the meta-dat
- * page in the following loop.
- */
- memset(&rec_dbt, 0, sizeof(rec_dbt));
- last_pgno = 1;
- for (pgno = 0; pgno <= last_pgno; pgno++) {
- if ((ret = __db_lget(dbc, 0, pgno, DB_LOCK_READ, 0, &lk)) != 0)
- goto err;
- if ((ret = mpf->get(mpf, &pgno, 0, &pagep)) != 0)
- goto err;
- if (pgno == 0)
- last_pgno = ((DBMETA *)pagep)->last_pgno;
- rec_dbt.data = pagep;
- rec_dbt.size = dbp->pgsize;
- if ((ret = __rep_send_message(dbenv, eid,
- REP_FILE, NULL, &rec_dbt, pgno == last_pgno)) != 0)
- goto err;
- ret = mpf->put(mpf, pagep, 0);
- pagep = NULL;
- if (ret != 0)
- goto err;
- ret = __LPUT(dbc, lk);
- LOCK_INIT(lk);
- if (ret != 0)
- goto err;
- }
- err: if (LOCK_ISSET(lk) && (t_ret = __LPUT(dbc, lk)) != 0 && ret == 0)
- ret = t_ret;
- if (dbc != NULL && (t_ret = dbc->c_close(dbc)) != 0 && ret == 0)
- ret = t_ret;
- if (pagep != NULL && (t_ret = mpf->put(mpf, pagep, 0)) != 0 && ret == 0)
- ret = t_ret;
- if (dbp != NULL && (t_ret = dbp->close(dbp, 0)) != 0 && ret == 0)
- ret = t_ret;
- return (ret);
- }
- #endif
- #if 0
- /*
- * PUBLIC: void __rep_print_message __P((DB_ENV *, int, REP_CONTROL *, char *));
- */
- void
- __rep_print_message(dbenv, eid, rp, str)
- DB_ENV *dbenv;
- int eid;
- REP_CONTROL *rp;
- char *str;
- {
- char *type;
- switch (rp->rectype) {
- case REP_ALIVE:
- type = "alive";
- break;
- case REP_ALIVE_REQ:
- type = "alive_req";
- break;
- case REP_ALL_REQ:
- type = "all_req";
- break;
- case REP_ELECT:
- type = "elect";
- break;
- case REP_FILE:
- type = "file";
- break;
- case REP_FILE_REQ:
- type = "file_req";
- break;
- case REP_LOG:
- type = "log";
- break;
- case REP_LOG_MORE:
- type = "log_more";
- break;
- case REP_LOG_REQ:
- type = "log_req";
- break;
- case REP_MASTER_REQ:
- type = "master_req";
- break;
- case REP_NEWCLIENT:
- type = "newclient";
- break;
- case REP_NEWFILE:
- type = "newfile";
- break;
- case REP_NEWMASTER:
- type = "newmaster";
- break;
- case REP_NEWSITE:
- type = "newsite";
- break;
- case REP_PAGE:
- type = "page";
- break;
- case REP_PAGE_REQ:
- type = "page_req";
- break;
- case REP_PLIST:
- type = "plist";
- break;
- case REP_PLIST_REQ:
- type = "plist_req";
- break;
- case REP_VERIFY:
- type = "verify";
- break;
- case REP_VERIFY_FAIL:
- type = "verify_fail";
- break;
- case REP_VERIFY_REQ:
- type = "verify_req";
- break;
- case REP_VOTE1:
- type = "vote1";
- break;
- case REP_VOTE2:
- type = "vote2";
- break;
- default:
- type = "NOTYPE";
- break;
- }
- printf("%s %s: gen = %d eid %d, type %s, LSN [%u][%u]n",
- dbenv->db_home, str, rp->gen, eid, type, rp->lsn.file,
- rp->lsn.offset);
- }
- #endif