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btree_auto.c

/* Do not edit: automatically built by gen_rec.awk. */

#include "db_config.h"

#include "db_int.h"
#include "dbinc/crypto.h"
#include "dbinc/db_page.h"
#include "dbinc/db_dispatch.h"
#include "dbinc/db_am.h"
#include "dbinc/btree.h"
#include "dbinc/log.h"
#include "dbinc/txn.h"

/*
 * PUBLIC: int __bam_split_log __P((DB *, DB_TXN *, DB_LSN *,
 * PUBLIC:     u_int32_t, db_pgno_t, DB_LSN *, db_pgno_t, DB_LSN *, u_int32_t,
 * PUBLIC:     db_pgno_t, DB_LSN *, db_pgno_t, const DBT *, u_int32_t));
 */
int
__bam_split_log(dbp, txnp, ret_lsnp, flags, left, llsn, right, rlsn, indx,
    npgno, nlsn, root_pgno, pg, opflags)
      DB *dbp;
      DB_TXN *txnp;
      DB_LSN *ret_lsnp;
      u_int32_t flags;
      db_pgno_t left;
      DB_LSN * llsn;
      db_pgno_t right;
      DB_LSN * rlsn;
      u_int32_t indx;
      db_pgno_t npgno;
      DB_LSN * nlsn;
      db_pgno_t root_pgno;
      const DBT *pg;
      u_int32_t opflags;
{
      DBT logrec;
      DB_ENV *dbenv;
      DB_TXNLOGREC *lr;
      DB_LSN *lsnp, null_lsn, *rlsnp;
      u_int32_t zero, uinttmp, rectype, txn_num;
      u_int npad;
      u_int8_t *bp;
      int is_durable, ret;

      dbenv = dbp->dbenv;
      COMPQUIET(lr, NULL);

      rectype = DB___bam_split;
      npad = 0;
      rlsnp = ret_lsnp;

      ret = 0;

      if (LF_ISSET(DB_LOG_NOT_DURABLE) ||
          F_ISSET(dbp, DB_AM_NOT_DURABLE)) {
            if (txnp == NULL)
                  return (0);
            is_durable = 0;
      } else
            is_durable = 1;

      if (txnp == NULL) {
            txn_num = 0;
            lsnp = &null_lsn;
            null_lsn.file = null_lsn.offset = 0;
      } else {
            if (TAILQ_FIRST(&txnp->kids) != NULL &&
                (ret = __txn_activekids(dbenv, rectype, txnp)) != 0)
                  return (ret);
            /*
             * We need to assign begin_lsn while holding region mutex.
             * That assignment is done inside the DbEnv->log_put call,
             * so pass in the appropriate memory location to be filled
             * in by the log_put code.
             */
            DB_SET_TXN_LSNP(txnp, &rlsnp, &lsnp);
            txn_num = txnp->txnid;
      }

      DB_ASSERT(dbenv, dbp->log_filename != NULL);
      if (dbp->log_filename->id == DB_LOGFILEID_INVALID &&
          (ret = __dbreg_lazy_id(dbp)) != 0)
            return (ret);

      logrec.size = sizeof(rectype) + sizeof(txn_num) + sizeof(DB_LSN)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(*llsn)
          + sizeof(u_int32_t)
          + sizeof(*rlsn)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(*nlsn)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t) + (pg == NULL ? 0 : pg->size)
          + sizeof(u_int32_t);
      if (CRYPTO_ON(dbenv)) {
            npad =
                ((DB_CIPHER *)dbenv->crypto_handle)->adj_size(logrec.size);
            logrec.size += npad;
      }

      if (is_durable || txnp == NULL) {
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0)
                  return (ret);
      } else {
            if ((ret = __os_malloc(dbenv,
                logrec.size + sizeof(DB_TXNLOGREC), &lr)) != 0)
                  return (ret);
#ifdef DIAGNOSTIC
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0) {
                  __os_free(dbenv, lr);
                  return (ret);
            }
#else
            logrec.data = lr->data;
#endif
      }
      if (npad > 0)
            memset((u_int8_t *)logrec.data + logrec.size - npad, 0, npad);

      bp = logrec.data;

      memcpy(bp, &rectype, sizeof(rectype));
      bp += sizeof(rectype);

      memcpy(bp, &txn_num, sizeof(txn_num));
      bp += sizeof(txn_num);

      memcpy(bp, lsnp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      uinttmp = (u_int32_t)dbp->log_filename->id;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)left;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      if (llsn != NULL) {
            if (txnp != NULL) {
                  LOG *lp = dbenv->lg_handle->reginfo.primary;
                  if (LOG_COMPARE(llsn, &lp->lsn) >= 0 && (ret =
                      __log_check_page_lsn(dbenv, dbp, llsn) != 0))
                        return (ret);
            }
            memcpy(bp, llsn, sizeof(*llsn));
      } else
            memset(bp, 0, sizeof(*llsn));
      bp += sizeof(*llsn);

      uinttmp = (u_int32_t)right;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      if (rlsn != NULL) {
            if (txnp != NULL) {
                  LOG *lp = dbenv->lg_handle->reginfo.primary;
                  if (LOG_COMPARE(rlsn, &lp->lsn) >= 0 && (ret =
                      __log_check_page_lsn(dbenv, dbp, rlsn) != 0))
                        return (ret);
            }
            memcpy(bp, rlsn, sizeof(*rlsn));
      } else
            memset(bp, 0, sizeof(*rlsn));
      bp += sizeof(*rlsn);

      uinttmp = (u_int32_t)indx;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)npgno;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      if (nlsn != NULL) {
            if (txnp != NULL) {
                  LOG *lp = dbenv->lg_handle->reginfo.primary;
                  if (LOG_COMPARE(nlsn, &lp->lsn) >= 0 && (ret =
                      __log_check_page_lsn(dbenv, dbp, nlsn) != 0))
                        return (ret);
            }
            memcpy(bp, nlsn, sizeof(*nlsn));
      } else
            memset(bp, 0, sizeof(*nlsn));
      bp += sizeof(*nlsn);

      uinttmp = (u_int32_t)root_pgno;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      if (pg == NULL) {
            zero = 0;
            memcpy(bp, &zero, sizeof(u_int32_t));
            bp += sizeof(u_int32_t);
      } else {
            memcpy(bp, &pg->size, sizeof(pg->size));
            bp += sizeof(pg->size);
            memcpy(bp, pg->data, pg->size);
            bp += pg->size;
      }

      uinttmp = (u_int32_t)opflags;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      DB_ASSERT(dbenv,
          (u_int32_t)(bp - (u_int8_t *)logrec.data) <= logrec.size);

      if (is_durable || txnp == NULL) {
            if ((ret = __log_put(dbenv, rlsnp,(DBT *)&logrec,
                flags | DB_LOG_NOCOPY)) == 0 && txnp != NULL) {
                  *lsnp = *rlsnp;
                  if (rlsnp != ret_lsnp)
                         *ret_lsnp = *rlsnp;
            }
      } else {
            ret = 0;
#ifdef DIAGNOSTIC
            /*
             * Set the debug bit if we are going to log non-durable
             * transactions so they will be ignored by recovery.
             */
            memcpy(lr->data, logrec.data, logrec.size);
            rectype |= DB_debug_FLAG;
            memcpy(logrec.data, &rectype, sizeof(rectype));

            if (!IS_REP_CLIENT(dbenv))
                  ret = __log_put(dbenv,
                      rlsnp, (DBT *)&logrec, flags | DB_LOG_NOCOPY);
#endif
            STAILQ_INSERT_HEAD(&txnp->logs, lr, links);
            F_SET((TXN_DETAIL *)txnp->td, TXN_DTL_INMEMORY);
            LSN_NOT_LOGGED(*ret_lsnp);
      }

#ifdef LOG_DIAGNOSTIC
      if (ret != 0)
            (void)__bam_split_print(dbenv,
                (DBT *)&logrec, ret_lsnp, DB_TXN_PRINT, NULL);
#endif

#ifdef DIAGNOSTIC
      __os_free(dbenv, logrec.data);
#else
      if (is_durable || txnp == NULL)
            __os_free(dbenv, logrec.data);
#endif
      return (ret);
}

/*
 * PUBLIC: int __bam_split_read __P((DB_ENV *, void *, __bam_split_args **));
 */
int
__bam_split_read(dbenv, recbuf, argpp)
      DB_ENV *dbenv;
      void *recbuf;
      __bam_split_args **argpp;
{
      __bam_split_args *argp;
      u_int32_t uinttmp;
      u_int8_t *bp;
      int ret;

      if ((ret = __os_malloc(dbenv,
          sizeof(__bam_split_args) + sizeof(DB_TXN), &argp)) != 0)
            return (ret);
      bp = recbuf;
      argp->txnp = (DB_TXN *)&argp[1];
      memset(argp->txnp, 0, sizeof(DB_TXN));

      memcpy(&argp->type, bp, sizeof(argp->type));
      bp += sizeof(argp->type);

      memcpy(&argp->txnp->txnid, bp, sizeof(argp->txnp->txnid));
      bp += sizeof(argp->txnp->txnid);

      memcpy(&argp->prev_lsn, bp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->fileid = (int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->left = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&argp->llsn, bp,  sizeof(argp->llsn));
      bp += sizeof(argp->llsn);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->right = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&argp->rlsn, bp,  sizeof(argp->rlsn));
      bp += sizeof(argp->rlsn);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->indx = (u_int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->npgno = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&argp->nlsn, bp,  sizeof(argp->nlsn));
      bp += sizeof(argp->nlsn);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->root_pgno = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memset(&argp->pg, 0, sizeof(argp->pg));
      memcpy(&argp->pg.size, bp, sizeof(u_int32_t));
      bp += sizeof(u_int32_t);
      argp->pg.data = bp;
      bp += argp->pg.size;

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->opflags = (u_int32_t)uinttmp;
      bp += sizeof(uinttmp);

      *argpp = argp;
      return (0);
}

/*
 * PUBLIC: int __bam_rsplit_log __P((DB *, DB_TXN *, DB_LSN *,
 * PUBLIC:     u_int32_t, db_pgno_t, const DBT *, db_pgno_t, db_pgno_t,
 * PUBLIC:     const DBT *, DB_LSN *));
 */
int
__bam_rsplit_log(dbp, txnp, ret_lsnp, flags, pgno, pgdbt, root_pgno, nrec, rootent,
    rootlsn)
      DB *dbp;
      DB_TXN *txnp;
      DB_LSN *ret_lsnp;
      u_int32_t flags;
      db_pgno_t pgno;
      const DBT *pgdbt;
      db_pgno_t root_pgno;
      db_pgno_t nrec;
      const DBT *rootent;
      DB_LSN * rootlsn;
{
      DBT logrec;
      DB_ENV *dbenv;
      DB_TXNLOGREC *lr;
      DB_LSN *lsnp, null_lsn, *rlsnp;
      u_int32_t zero, uinttmp, rectype, txn_num;
      u_int npad;
      u_int8_t *bp;
      int is_durable, ret;

      dbenv = dbp->dbenv;
      COMPQUIET(lr, NULL);

      rectype = DB___bam_rsplit;
      npad = 0;
      rlsnp = ret_lsnp;

      ret = 0;

      if (LF_ISSET(DB_LOG_NOT_DURABLE) ||
          F_ISSET(dbp, DB_AM_NOT_DURABLE)) {
            if (txnp == NULL)
                  return (0);
            is_durable = 0;
      } else
            is_durable = 1;

      if (txnp == NULL) {
            txn_num = 0;
            lsnp = &null_lsn;
            null_lsn.file = null_lsn.offset = 0;
      } else {
            if (TAILQ_FIRST(&txnp->kids) != NULL &&
                (ret = __txn_activekids(dbenv, rectype, txnp)) != 0)
                  return (ret);
            /*
             * We need to assign begin_lsn while holding region mutex.
             * That assignment is done inside the DbEnv->log_put call,
             * so pass in the appropriate memory location to be filled
             * in by the log_put code.
             */
            DB_SET_TXN_LSNP(txnp, &rlsnp, &lsnp);
            txn_num = txnp->txnid;
      }

      DB_ASSERT(dbenv, dbp->log_filename != NULL);
      if (dbp->log_filename->id == DB_LOGFILEID_INVALID &&
          (ret = __dbreg_lazy_id(dbp)) != 0)
            return (ret);

      logrec.size = sizeof(rectype) + sizeof(txn_num) + sizeof(DB_LSN)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t) + (pgdbt == NULL ? 0 : pgdbt->size)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t) + (rootent == NULL ? 0 : rootent->size)
          + sizeof(*rootlsn);
      if (CRYPTO_ON(dbenv)) {
            npad =
                ((DB_CIPHER *)dbenv->crypto_handle)->adj_size(logrec.size);
            logrec.size += npad;
      }

      if (is_durable || txnp == NULL) {
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0)
                  return (ret);
      } else {
            if ((ret = __os_malloc(dbenv,
                logrec.size + sizeof(DB_TXNLOGREC), &lr)) != 0)
                  return (ret);
#ifdef DIAGNOSTIC
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0) {
                  __os_free(dbenv, lr);
                  return (ret);
            }
#else
            logrec.data = lr->data;
#endif
      }
      if (npad > 0)
            memset((u_int8_t *)logrec.data + logrec.size - npad, 0, npad);

      bp = logrec.data;

      memcpy(bp, &rectype, sizeof(rectype));
      bp += sizeof(rectype);

      memcpy(bp, &txn_num, sizeof(txn_num));
      bp += sizeof(txn_num);

      memcpy(bp, lsnp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      uinttmp = (u_int32_t)dbp->log_filename->id;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)pgno;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      if (pgdbt == NULL) {
            zero = 0;
            memcpy(bp, &zero, sizeof(u_int32_t));
            bp += sizeof(u_int32_t);
      } else {
            memcpy(bp, &pgdbt->size, sizeof(pgdbt->size));
            bp += sizeof(pgdbt->size);
            memcpy(bp, pgdbt->data, pgdbt->size);
            bp += pgdbt->size;
      }

      uinttmp = (u_int32_t)root_pgno;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)nrec;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      if (rootent == NULL) {
            zero = 0;
            memcpy(bp, &zero, sizeof(u_int32_t));
            bp += sizeof(u_int32_t);
      } else {
            memcpy(bp, &rootent->size, sizeof(rootent->size));
            bp += sizeof(rootent->size);
            memcpy(bp, rootent->data, rootent->size);
            bp += rootent->size;
      }

      if (rootlsn != NULL) {
            if (txnp != NULL) {
                  LOG *lp = dbenv->lg_handle->reginfo.primary;
                  if (LOG_COMPARE(rootlsn, &lp->lsn) >= 0 && (ret =
                      __log_check_page_lsn(dbenv, dbp, rootlsn) != 0))
                        return (ret);
            }
            memcpy(bp, rootlsn, sizeof(*rootlsn));
      } else
            memset(bp, 0, sizeof(*rootlsn));
      bp += sizeof(*rootlsn);

      DB_ASSERT(dbenv,
          (u_int32_t)(bp - (u_int8_t *)logrec.data) <= logrec.size);

      if (is_durable || txnp == NULL) {
            if ((ret = __log_put(dbenv, rlsnp,(DBT *)&logrec,
                flags | DB_LOG_NOCOPY)) == 0 && txnp != NULL) {
                  *lsnp = *rlsnp;
                  if (rlsnp != ret_lsnp)
                         *ret_lsnp = *rlsnp;
            }
      } else {
            ret = 0;
#ifdef DIAGNOSTIC
            /*
             * Set the debug bit if we are going to log non-durable
             * transactions so they will be ignored by recovery.
             */
            memcpy(lr->data, logrec.data, logrec.size);
            rectype |= DB_debug_FLAG;
            memcpy(logrec.data, &rectype, sizeof(rectype));

            if (!IS_REP_CLIENT(dbenv))
                  ret = __log_put(dbenv,
                      rlsnp, (DBT *)&logrec, flags | DB_LOG_NOCOPY);
#endif
            STAILQ_INSERT_HEAD(&txnp->logs, lr, links);
            F_SET((TXN_DETAIL *)txnp->td, TXN_DTL_INMEMORY);
            LSN_NOT_LOGGED(*ret_lsnp);
      }

#ifdef LOG_DIAGNOSTIC
      if (ret != 0)
            (void)__bam_rsplit_print(dbenv,
                (DBT *)&logrec, ret_lsnp, DB_TXN_PRINT, NULL);
#endif

#ifdef DIAGNOSTIC
      __os_free(dbenv, logrec.data);
#else
      if (is_durable || txnp == NULL)
            __os_free(dbenv, logrec.data);
#endif
      return (ret);
}

/*
 * PUBLIC: int __bam_rsplit_read __P((DB_ENV *, void *, __bam_rsplit_args **));
 */
int
__bam_rsplit_read(dbenv, recbuf, argpp)
      DB_ENV *dbenv;
      void *recbuf;
      __bam_rsplit_args **argpp;
{
      __bam_rsplit_args *argp;
      u_int32_t uinttmp;
      u_int8_t *bp;
      int ret;

      if ((ret = __os_malloc(dbenv,
          sizeof(__bam_rsplit_args) + sizeof(DB_TXN), &argp)) != 0)
            return (ret);
      bp = recbuf;
      argp->txnp = (DB_TXN *)&argp[1];
      memset(argp->txnp, 0, sizeof(DB_TXN));

      memcpy(&argp->type, bp, sizeof(argp->type));
      bp += sizeof(argp->type);

      memcpy(&argp->txnp->txnid, bp, sizeof(argp->txnp->txnid));
      bp += sizeof(argp->txnp->txnid);

      memcpy(&argp->prev_lsn, bp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->fileid = (int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->pgno = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memset(&argp->pgdbt, 0, sizeof(argp->pgdbt));
      memcpy(&argp->pgdbt.size, bp, sizeof(u_int32_t));
      bp += sizeof(u_int32_t);
      argp->pgdbt.data = bp;
      bp += argp->pgdbt.size;

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->root_pgno = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->nrec = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memset(&argp->rootent, 0, sizeof(argp->rootent));
      memcpy(&argp->rootent.size, bp, sizeof(u_int32_t));
      bp += sizeof(u_int32_t);
      argp->rootent.data = bp;
      bp += argp->rootent.size;

      memcpy(&argp->rootlsn, bp,  sizeof(argp->rootlsn));
      bp += sizeof(argp->rootlsn);

      *argpp = argp;
      return (0);
}

/*
 * PUBLIC: int __bam_adj_log __P((DB *, DB_TXN *, DB_LSN *,
 * PUBLIC:     u_int32_t, db_pgno_t, DB_LSN *, u_int32_t, u_int32_t,
 * PUBLIC:     u_int32_t));
 */
int
__bam_adj_log(dbp, txnp, ret_lsnp, flags, pgno, lsn, indx, indx_copy, is_insert)
      DB *dbp;
      DB_TXN *txnp;
      DB_LSN *ret_lsnp;
      u_int32_t flags;
      db_pgno_t pgno;
      DB_LSN * lsn;
      u_int32_t indx;
      u_int32_t indx_copy;
      u_int32_t is_insert;
{
      DBT logrec;
      DB_ENV *dbenv;
      DB_TXNLOGREC *lr;
      DB_LSN *lsnp, null_lsn, *rlsnp;
      u_int32_t uinttmp, rectype, txn_num;
      u_int npad;
      u_int8_t *bp;
      int is_durable, ret;

      dbenv = dbp->dbenv;
      COMPQUIET(lr, NULL);

      rectype = DB___bam_adj;
      npad = 0;
      rlsnp = ret_lsnp;

      ret = 0;

      if (LF_ISSET(DB_LOG_NOT_DURABLE) ||
          F_ISSET(dbp, DB_AM_NOT_DURABLE)) {
            if (txnp == NULL)
                  return (0);
            is_durable = 0;
      } else
            is_durable = 1;

      if (txnp == NULL) {
            txn_num = 0;
            lsnp = &null_lsn;
            null_lsn.file = null_lsn.offset = 0;
      } else {
            if (TAILQ_FIRST(&txnp->kids) != NULL &&
                (ret = __txn_activekids(dbenv, rectype, txnp)) != 0)
                  return (ret);
            /*
             * We need to assign begin_lsn while holding region mutex.
             * That assignment is done inside the DbEnv->log_put call,
             * so pass in the appropriate memory location to be filled
             * in by the log_put code.
             */
            DB_SET_TXN_LSNP(txnp, &rlsnp, &lsnp);
            txn_num = txnp->txnid;
      }

      DB_ASSERT(dbenv, dbp->log_filename != NULL);
      if (dbp->log_filename->id == DB_LOGFILEID_INVALID &&
          (ret = __dbreg_lazy_id(dbp)) != 0)
            return (ret);

      logrec.size = sizeof(rectype) + sizeof(txn_num) + sizeof(DB_LSN)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(*lsn)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t);
      if (CRYPTO_ON(dbenv)) {
            npad =
                ((DB_CIPHER *)dbenv->crypto_handle)->adj_size(logrec.size);
            logrec.size += npad;
      }

      if (is_durable || txnp == NULL) {
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0)
                  return (ret);
      } else {
            if ((ret = __os_malloc(dbenv,
                logrec.size + sizeof(DB_TXNLOGREC), &lr)) != 0)
                  return (ret);
#ifdef DIAGNOSTIC
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0) {
                  __os_free(dbenv, lr);
                  return (ret);
            }
#else
            logrec.data = lr->data;
#endif
      }
      if (npad > 0)
            memset((u_int8_t *)logrec.data + logrec.size - npad, 0, npad);

      bp = logrec.data;

      memcpy(bp, &rectype, sizeof(rectype));
      bp += sizeof(rectype);

      memcpy(bp, &txn_num, sizeof(txn_num));
      bp += sizeof(txn_num);

      memcpy(bp, lsnp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      uinttmp = (u_int32_t)dbp->log_filename->id;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)pgno;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      if (lsn != NULL) {
            if (txnp != NULL) {
                  LOG *lp = dbenv->lg_handle->reginfo.primary;
                  if (LOG_COMPARE(lsn, &lp->lsn) >= 0 && (ret =
                      __log_check_page_lsn(dbenv, dbp, lsn) != 0))
                        return (ret);
            }
            memcpy(bp, lsn, sizeof(*lsn));
      } else
            memset(bp, 0, sizeof(*lsn));
      bp += sizeof(*lsn);

      uinttmp = (u_int32_t)indx;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)indx_copy;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)is_insert;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      DB_ASSERT(dbenv,
          (u_int32_t)(bp - (u_int8_t *)logrec.data) <= logrec.size);

      if (is_durable || txnp == NULL) {
            if ((ret = __log_put(dbenv, rlsnp,(DBT *)&logrec,
                flags | DB_LOG_NOCOPY)) == 0 && txnp != NULL) {
                  *lsnp = *rlsnp;
                  if (rlsnp != ret_lsnp)
                         *ret_lsnp = *rlsnp;
            }
      } else {
            ret = 0;
#ifdef DIAGNOSTIC
            /*
             * Set the debug bit if we are going to log non-durable
             * transactions so they will be ignored by recovery.
             */
            memcpy(lr->data, logrec.data, logrec.size);
            rectype |= DB_debug_FLAG;
            memcpy(logrec.data, &rectype, sizeof(rectype));

            if (!IS_REP_CLIENT(dbenv))
                  ret = __log_put(dbenv,
                      rlsnp, (DBT *)&logrec, flags | DB_LOG_NOCOPY);
#endif
            STAILQ_INSERT_HEAD(&txnp->logs, lr, links);
            F_SET((TXN_DETAIL *)txnp->td, TXN_DTL_INMEMORY);
            LSN_NOT_LOGGED(*ret_lsnp);
      }

#ifdef LOG_DIAGNOSTIC
      if (ret != 0)
            (void)__bam_adj_print(dbenv,
                (DBT *)&logrec, ret_lsnp, DB_TXN_PRINT, NULL);
#endif

#ifdef DIAGNOSTIC
      __os_free(dbenv, logrec.data);
#else
      if (is_durable || txnp == NULL)
            __os_free(dbenv, logrec.data);
#endif
      return (ret);
}

/*
 * PUBLIC: int __bam_adj_read __P((DB_ENV *, void *, __bam_adj_args **));
 */
int
__bam_adj_read(dbenv, recbuf, argpp)
      DB_ENV *dbenv;
      void *recbuf;
      __bam_adj_args **argpp;
{
      __bam_adj_args *argp;
      u_int32_t uinttmp;
      u_int8_t *bp;
      int ret;

      if ((ret = __os_malloc(dbenv,
          sizeof(__bam_adj_args) + sizeof(DB_TXN), &argp)) != 0)
            return (ret);
      bp = recbuf;
      argp->txnp = (DB_TXN *)&argp[1];
      memset(argp->txnp, 0, sizeof(DB_TXN));

      memcpy(&argp->type, bp, sizeof(argp->type));
      bp += sizeof(argp->type);

      memcpy(&argp->txnp->txnid, bp, sizeof(argp->txnp->txnid));
      bp += sizeof(argp->txnp->txnid);

      memcpy(&argp->prev_lsn, bp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->fileid = (int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->pgno = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&argp->lsn, bp,  sizeof(argp->lsn));
      bp += sizeof(argp->lsn);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->indx = (u_int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->indx_copy = (u_int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->is_insert = (u_int32_t)uinttmp;
      bp += sizeof(uinttmp);

      *argpp = argp;
      return (0);
}

/*
 * PUBLIC: int __bam_cadjust_log __P((DB *, DB_TXN *, DB_LSN *,
 * PUBLIC:     u_int32_t, db_pgno_t, DB_LSN *, u_int32_t, int32_t, u_int32_t));
 */
int
__bam_cadjust_log(dbp, txnp, ret_lsnp, flags, pgno, lsn, indx, adjust, opflags)
      DB *dbp;
      DB_TXN *txnp;
      DB_LSN *ret_lsnp;
      u_int32_t flags;
      db_pgno_t pgno;
      DB_LSN * lsn;
      u_int32_t indx;
      int32_t adjust;
      u_int32_t opflags;
{
      DBT logrec;
      DB_ENV *dbenv;
      DB_TXNLOGREC *lr;
      DB_LSN *lsnp, null_lsn, *rlsnp;
      u_int32_t uinttmp, rectype, txn_num;
      u_int npad;
      u_int8_t *bp;
      int is_durable, ret;

      dbenv = dbp->dbenv;
      COMPQUIET(lr, NULL);

      rectype = DB___bam_cadjust;
      npad = 0;
      rlsnp = ret_lsnp;

      ret = 0;

      if (LF_ISSET(DB_LOG_NOT_DURABLE) ||
          F_ISSET(dbp, DB_AM_NOT_DURABLE)) {
            if (txnp == NULL)
                  return (0);
            is_durable = 0;
      } else
            is_durable = 1;

      if (txnp == NULL) {
            txn_num = 0;
            lsnp = &null_lsn;
            null_lsn.file = null_lsn.offset = 0;
      } else {
            if (TAILQ_FIRST(&txnp->kids) != NULL &&
                (ret = __txn_activekids(dbenv, rectype, txnp)) != 0)
                  return (ret);
            /*
             * We need to assign begin_lsn while holding region mutex.
             * That assignment is done inside the DbEnv->log_put call,
             * so pass in the appropriate memory location to be filled
             * in by the log_put code.
             */
            DB_SET_TXN_LSNP(txnp, &rlsnp, &lsnp);
            txn_num = txnp->txnid;
      }

      DB_ASSERT(dbenv, dbp->log_filename != NULL);
      if (dbp->log_filename->id == DB_LOGFILEID_INVALID &&
          (ret = __dbreg_lazy_id(dbp)) != 0)
            return (ret);

      logrec.size = sizeof(rectype) + sizeof(txn_num) + sizeof(DB_LSN)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(*lsn)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t);
      if (CRYPTO_ON(dbenv)) {
            npad =
                ((DB_CIPHER *)dbenv->crypto_handle)->adj_size(logrec.size);
            logrec.size += npad;
      }

      if (is_durable || txnp == NULL) {
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0)
                  return (ret);
      } else {
            if ((ret = __os_malloc(dbenv,
                logrec.size + sizeof(DB_TXNLOGREC), &lr)) != 0)
                  return (ret);
#ifdef DIAGNOSTIC
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0) {
                  __os_free(dbenv, lr);
                  return (ret);
            }
#else
            logrec.data = lr->data;
#endif
      }
      if (npad > 0)
            memset((u_int8_t *)logrec.data + logrec.size - npad, 0, npad);

      bp = logrec.data;

      memcpy(bp, &rectype, sizeof(rectype));
      bp += sizeof(rectype);

      memcpy(bp, &txn_num, sizeof(txn_num));
      bp += sizeof(txn_num);

      memcpy(bp, lsnp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      uinttmp = (u_int32_t)dbp->log_filename->id;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)pgno;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      if (lsn != NULL) {
            if (txnp != NULL) {
                  LOG *lp = dbenv->lg_handle->reginfo.primary;
                  if (LOG_COMPARE(lsn, &lp->lsn) >= 0 && (ret =
                      __log_check_page_lsn(dbenv, dbp, lsn) != 0))
                        return (ret);
            }
            memcpy(bp, lsn, sizeof(*lsn));
      } else
            memset(bp, 0, sizeof(*lsn));
      bp += sizeof(*lsn);

      uinttmp = (u_int32_t)indx;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)adjust;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)opflags;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      DB_ASSERT(dbenv,
          (u_int32_t)(bp - (u_int8_t *)logrec.data) <= logrec.size);

      if (is_durable || txnp == NULL) {
            if ((ret = __log_put(dbenv, rlsnp,(DBT *)&logrec,
                flags | DB_LOG_NOCOPY)) == 0 && txnp != NULL) {
                  *lsnp = *rlsnp;
                  if (rlsnp != ret_lsnp)
                         *ret_lsnp = *rlsnp;
            }
      } else {
            ret = 0;
#ifdef DIAGNOSTIC
            /*
             * Set the debug bit if we are going to log non-durable
             * transactions so they will be ignored by recovery.
             */
            memcpy(lr->data, logrec.data, logrec.size);
            rectype |= DB_debug_FLAG;
            memcpy(logrec.data, &rectype, sizeof(rectype));

            if (!IS_REP_CLIENT(dbenv))
                  ret = __log_put(dbenv,
                      rlsnp, (DBT *)&logrec, flags | DB_LOG_NOCOPY);
#endif
            STAILQ_INSERT_HEAD(&txnp->logs, lr, links);
            F_SET((TXN_DETAIL *)txnp->td, TXN_DTL_INMEMORY);
            LSN_NOT_LOGGED(*ret_lsnp);
      }

#ifdef LOG_DIAGNOSTIC
      if (ret != 0)
            (void)__bam_cadjust_print(dbenv,
                (DBT *)&logrec, ret_lsnp, DB_TXN_PRINT, NULL);
#endif

#ifdef DIAGNOSTIC
      __os_free(dbenv, logrec.data);
#else
      if (is_durable || txnp == NULL)
            __os_free(dbenv, logrec.data);
#endif
      return (ret);
}

/*
 * PUBLIC: int __bam_cadjust_read __P((DB_ENV *, void *,
 * PUBLIC:     __bam_cadjust_args **));
 */
int
__bam_cadjust_read(dbenv, recbuf, argpp)
      DB_ENV *dbenv;
      void *recbuf;
      __bam_cadjust_args **argpp;
{
      __bam_cadjust_args *argp;
      u_int32_t uinttmp;
      u_int8_t *bp;
      int ret;

      if ((ret = __os_malloc(dbenv,
          sizeof(__bam_cadjust_args) + sizeof(DB_TXN), &argp)) != 0)
            return (ret);
      bp = recbuf;
      argp->txnp = (DB_TXN *)&argp[1];
      memset(argp->txnp, 0, sizeof(DB_TXN));

      memcpy(&argp->type, bp, sizeof(argp->type));
      bp += sizeof(argp->type);

      memcpy(&argp->txnp->txnid, bp, sizeof(argp->txnp->txnid));
      bp += sizeof(argp->txnp->txnid);

      memcpy(&argp->prev_lsn, bp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->fileid = (int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->pgno = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&argp->lsn, bp,  sizeof(argp->lsn));
      bp += sizeof(argp->lsn);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->indx = (u_int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->adjust = (int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->opflags = (u_int32_t)uinttmp;
      bp += sizeof(uinttmp);

      *argpp = argp;
      return (0);
}

/*
 * PUBLIC: int __bam_cdel_log __P((DB *, DB_TXN *, DB_LSN *,
 * PUBLIC:     u_int32_t, db_pgno_t, DB_LSN *, u_int32_t));
 */
int
__bam_cdel_log(dbp, txnp, ret_lsnp, flags, pgno, lsn, indx)
      DB *dbp;
      DB_TXN *txnp;
      DB_LSN *ret_lsnp;
      u_int32_t flags;
      db_pgno_t pgno;
      DB_LSN * lsn;
      u_int32_t indx;
{
      DBT logrec;
      DB_ENV *dbenv;
      DB_TXNLOGREC *lr;
      DB_LSN *lsnp, null_lsn, *rlsnp;
      u_int32_t uinttmp, rectype, txn_num;
      u_int npad;
      u_int8_t *bp;
      int is_durable, ret;

      dbenv = dbp->dbenv;
      COMPQUIET(lr, NULL);

      rectype = DB___bam_cdel;
      npad = 0;
      rlsnp = ret_lsnp;

      ret = 0;

      if (LF_ISSET(DB_LOG_NOT_DURABLE) ||
          F_ISSET(dbp, DB_AM_NOT_DURABLE)) {
            if (txnp == NULL)
                  return (0);
            is_durable = 0;
      } else
            is_durable = 1;

      if (txnp == NULL) {
            txn_num = 0;
            lsnp = &null_lsn;
            null_lsn.file = null_lsn.offset = 0;
      } else {
            if (TAILQ_FIRST(&txnp->kids) != NULL &&
                (ret = __txn_activekids(dbenv, rectype, txnp)) != 0)
                  return (ret);
            /*
             * We need to assign begin_lsn while holding region mutex.
             * That assignment is done inside the DbEnv->log_put call,
             * so pass in the appropriate memory location to be filled
             * in by the log_put code.
             */
            DB_SET_TXN_LSNP(txnp, &rlsnp, &lsnp);
            txn_num = txnp->txnid;
      }

      DB_ASSERT(dbenv, dbp->log_filename != NULL);
      if (dbp->log_filename->id == DB_LOGFILEID_INVALID &&
          (ret = __dbreg_lazy_id(dbp)) != 0)
            return (ret);

      logrec.size = sizeof(rectype) + sizeof(txn_num) + sizeof(DB_LSN)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(*lsn)
          + sizeof(u_int32_t);
      if (CRYPTO_ON(dbenv)) {
            npad =
                ((DB_CIPHER *)dbenv->crypto_handle)->adj_size(logrec.size);
            logrec.size += npad;
      }

      if (is_durable || txnp == NULL) {
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0)
                  return (ret);
      } else {
            if ((ret = __os_malloc(dbenv,
                logrec.size + sizeof(DB_TXNLOGREC), &lr)) != 0)
                  return (ret);
#ifdef DIAGNOSTIC
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0) {
                  __os_free(dbenv, lr);
                  return (ret);
            }
#else
            logrec.data = lr->data;
#endif
      }
      if (npad > 0)
            memset((u_int8_t *)logrec.data + logrec.size - npad, 0, npad);

      bp = logrec.data;

      memcpy(bp, &rectype, sizeof(rectype));
      bp += sizeof(rectype);

      memcpy(bp, &txn_num, sizeof(txn_num));
      bp += sizeof(txn_num);

      memcpy(bp, lsnp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      uinttmp = (u_int32_t)dbp->log_filename->id;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)pgno;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      if (lsn != NULL) {
            if (txnp != NULL) {
                  LOG *lp = dbenv->lg_handle->reginfo.primary;
                  if (LOG_COMPARE(lsn, &lp->lsn) >= 0 && (ret =
                      __log_check_page_lsn(dbenv, dbp, lsn) != 0))
                        return (ret);
            }
            memcpy(bp, lsn, sizeof(*lsn));
      } else
            memset(bp, 0, sizeof(*lsn));
      bp += sizeof(*lsn);

      uinttmp = (u_int32_t)indx;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      DB_ASSERT(dbenv,
          (u_int32_t)(bp - (u_int8_t *)logrec.data) <= logrec.size);

      if (is_durable || txnp == NULL) {
            if ((ret = __log_put(dbenv, rlsnp,(DBT *)&logrec,
                flags | DB_LOG_NOCOPY)) == 0 && txnp != NULL) {
                  *lsnp = *rlsnp;
                  if (rlsnp != ret_lsnp)
                         *ret_lsnp = *rlsnp;
            }
      } else {
            ret = 0;
#ifdef DIAGNOSTIC
            /*
             * Set the debug bit if we are going to log non-durable
             * transactions so they will be ignored by recovery.
             */
            memcpy(lr->data, logrec.data, logrec.size);
            rectype |= DB_debug_FLAG;
            memcpy(logrec.data, &rectype, sizeof(rectype));

            if (!IS_REP_CLIENT(dbenv))
                  ret = __log_put(dbenv,
                      rlsnp, (DBT *)&logrec, flags | DB_LOG_NOCOPY);
#endif
            STAILQ_INSERT_HEAD(&txnp->logs, lr, links);
            F_SET((TXN_DETAIL *)txnp->td, TXN_DTL_INMEMORY);
            LSN_NOT_LOGGED(*ret_lsnp);
      }

#ifdef LOG_DIAGNOSTIC
      if (ret != 0)
            (void)__bam_cdel_print(dbenv,
                (DBT *)&logrec, ret_lsnp, DB_TXN_PRINT, NULL);
#endif

#ifdef DIAGNOSTIC
      __os_free(dbenv, logrec.data);
#else
      if (is_durable || txnp == NULL)
            __os_free(dbenv, logrec.data);
#endif
      return (ret);
}

/*
 * PUBLIC: int __bam_cdel_read __P((DB_ENV *, void *, __bam_cdel_args **));
 */
int
__bam_cdel_read(dbenv, recbuf, argpp)
      DB_ENV *dbenv;
      void *recbuf;
      __bam_cdel_args **argpp;
{
      __bam_cdel_args *argp;
      u_int32_t uinttmp;
      u_int8_t *bp;
      int ret;

      if ((ret = __os_malloc(dbenv,
          sizeof(__bam_cdel_args) + sizeof(DB_TXN), &argp)) != 0)
            return (ret);
      bp = recbuf;
      argp->txnp = (DB_TXN *)&argp[1];
      memset(argp->txnp, 0, sizeof(DB_TXN));

      memcpy(&argp->type, bp, sizeof(argp->type));
      bp += sizeof(argp->type);

      memcpy(&argp->txnp->txnid, bp, sizeof(argp->txnp->txnid));
      bp += sizeof(argp->txnp->txnid);

      memcpy(&argp->prev_lsn, bp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->fileid = (int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->pgno = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&argp->lsn, bp,  sizeof(argp->lsn));
      bp += sizeof(argp->lsn);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->indx = (u_int32_t)uinttmp;
      bp += sizeof(uinttmp);

      *argpp = argp;
      return (0);
}

/*
 * PUBLIC: int __bam_repl_log __P((DB *, DB_TXN *, DB_LSN *,
 * PUBLIC:     u_int32_t, db_pgno_t, DB_LSN *, u_int32_t, u_int32_t,
 * PUBLIC:     const DBT *, const DBT *, u_int32_t, u_int32_t));
 */
int
__bam_repl_log(dbp, txnp, ret_lsnp, flags, pgno, lsn, indx, isdeleted, orig,
    repl, prefix, suffix)
      DB *dbp;
      DB_TXN *txnp;
      DB_LSN *ret_lsnp;
      u_int32_t flags;
      db_pgno_t pgno;
      DB_LSN * lsn;
      u_int32_t indx;
      u_int32_t isdeleted;
      const DBT *orig;
      const DBT *repl;
      u_int32_t prefix;
      u_int32_t suffix;
{
      DBT logrec;
      DB_ENV *dbenv;
      DB_TXNLOGREC *lr;
      DB_LSN *lsnp, null_lsn, *rlsnp;
      u_int32_t zero, uinttmp, rectype, txn_num;
      u_int npad;
      u_int8_t *bp;
      int is_durable, ret;

      dbenv = dbp->dbenv;
      COMPQUIET(lr, NULL);

      rectype = DB___bam_repl;
      npad = 0;
      rlsnp = ret_lsnp;

      ret = 0;

      if (LF_ISSET(DB_LOG_NOT_DURABLE) ||
          F_ISSET(dbp, DB_AM_NOT_DURABLE)) {
            if (txnp == NULL)
                  return (0);
            is_durable = 0;
      } else
            is_durable = 1;

      if (txnp == NULL) {
            txn_num = 0;
            lsnp = &null_lsn;
            null_lsn.file = null_lsn.offset = 0;
      } else {
            if (TAILQ_FIRST(&txnp->kids) != NULL &&
                (ret = __txn_activekids(dbenv, rectype, txnp)) != 0)
                  return (ret);
            /*
             * We need to assign begin_lsn while holding region mutex.
             * That assignment is done inside the DbEnv->log_put call,
             * so pass in the appropriate memory location to be filled
             * in by the log_put code.
             */
            DB_SET_TXN_LSNP(txnp, &rlsnp, &lsnp);
            txn_num = txnp->txnid;
      }

      DB_ASSERT(dbenv, dbp->log_filename != NULL);
      if (dbp->log_filename->id == DB_LOGFILEID_INVALID &&
          (ret = __dbreg_lazy_id(dbp)) != 0)
            return (ret);

      logrec.size = sizeof(rectype) + sizeof(txn_num) + sizeof(DB_LSN)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(*lsn)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t) + (orig == NULL ? 0 : orig->size)
          + sizeof(u_int32_t) + (repl == NULL ? 0 : repl->size)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t);
      if (CRYPTO_ON(dbenv)) {
            npad =
                ((DB_CIPHER *)dbenv->crypto_handle)->adj_size(logrec.size);
            logrec.size += npad;
      }

      if (is_durable || txnp == NULL) {
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0)
                  return (ret);
      } else {
            if ((ret = __os_malloc(dbenv,
                logrec.size + sizeof(DB_TXNLOGREC), &lr)) != 0)
                  return (ret);
#ifdef DIAGNOSTIC
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0) {
                  __os_free(dbenv, lr);
                  return (ret);
            }
#else
            logrec.data = lr->data;
#endif
      }
      if (npad > 0)
            memset((u_int8_t *)logrec.data + logrec.size - npad, 0, npad);

      bp = logrec.data;

      memcpy(bp, &rectype, sizeof(rectype));
      bp += sizeof(rectype);

      memcpy(bp, &txn_num, sizeof(txn_num));
      bp += sizeof(txn_num);

      memcpy(bp, lsnp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      uinttmp = (u_int32_t)dbp->log_filename->id;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)pgno;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      if (lsn != NULL) {
            if (txnp != NULL) {
                  LOG *lp = dbenv->lg_handle->reginfo.primary;
                  if (LOG_COMPARE(lsn, &lp->lsn) >= 0 && (ret =
                      __log_check_page_lsn(dbenv, dbp, lsn) != 0))
                        return (ret);
            }
            memcpy(bp, lsn, sizeof(*lsn));
      } else
            memset(bp, 0, sizeof(*lsn));
      bp += sizeof(*lsn);

      uinttmp = (u_int32_t)indx;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)isdeleted;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      if (orig == NULL) {
            zero = 0;
            memcpy(bp, &zero, sizeof(u_int32_t));
            bp += sizeof(u_int32_t);
      } else {
            memcpy(bp, &orig->size, sizeof(orig->size));
            bp += sizeof(orig->size);
            memcpy(bp, orig->data, orig->size);
            bp += orig->size;
      }

      if (repl == NULL) {
            zero = 0;
            memcpy(bp, &zero, sizeof(u_int32_t));
            bp += sizeof(u_int32_t);
      } else {
            memcpy(bp, &repl->size, sizeof(repl->size));
            bp += sizeof(repl->size);
            memcpy(bp, repl->data, repl->size);
            bp += repl->size;
      }

      uinttmp = (u_int32_t)prefix;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)suffix;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      DB_ASSERT(dbenv,
          (u_int32_t)(bp - (u_int8_t *)logrec.data) <= logrec.size);

      if (is_durable || txnp == NULL) {
            if ((ret = __log_put(dbenv, rlsnp,(DBT *)&logrec,
                flags | DB_LOG_NOCOPY)) == 0 && txnp != NULL) {
                  *lsnp = *rlsnp;
                  if (rlsnp != ret_lsnp)
                         *ret_lsnp = *rlsnp;
            }
      } else {
            ret = 0;
#ifdef DIAGNOSTIC
            /*
             * Set the debug bit if we are going to log non-durable
             * transactions so they will be ignored by recovery.
             */
            memcpy(lr->data, logrec.data, logrec.size);
            rectype |= DB_debug_FLAG;
            memcpy(logrec.data, &rectype, sizeof(rectype));

            if (!IS_REP_CLIENT(dbenv))
                  ret = __log_put(dbenv,
                      rlsnp, (DBT *)&logrec, flags | DB_LOG_NOCOPY);
#endif
            STAILQ_INSERT_HEAD(&txnp->logs, lr, links);
            F_SET((TXN_DETAIL *)txnp->td, TXN_DTL_INMEMORY);
            LSN_NOT_LOGGED(*ret_lsnp);
      }

#ifdef LOG_DIAGNOSTIC
      if (ret != 0)
            (void)__bam_repl_print(dbenv,
                (DBT *)&logrec, ret_lsnp, DB_TXN_PRINT, NULL);
#endif

#ifdef DIAGNOSTIC
      __os_free(dbenv, logrec.data);
#else
      if (is_durable || txnp == NULL)
            __os_free(dbenv, logrec.data);
#endif
      return (ret);
}

/*
 * PUBLIC: int __bam_repl_read __P((DB_ENV *, void *, __bam_repl_args **));
 */
int
__bam_repl_read(dbenv, recbuf, argpp)
      DB_ENV *dbenv;
      void *recbuf;
      __bam_repl_args **argpp;
{
      __bam_repl_args *argp;
      u_int32_t uinttmp;
      u_int8_t *bp;
      int ret;

      if ((ret = __os_malloc(dbenv,
          sizeof(__bam_repl_args) + sizeof(DB_TXN), &argp)) != 0)
            return (ret);
      bp = recbuf;
      argp->txnp = (DB_TXN *)&argp[1];
      memset(argp->txnp, 0, sizeof(DB_TXN));

      memcpy(&argp->type, bp, sizeof(argp->type));
      bp += sizeof(argp->type);

      memcpy(&argp->txnp->txnid, bp, sizeof(argp->txnp->txnid));
      bp += sizeof(argp->txnp->txnid);

      memcpy(&argp->prev_lsn, bp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->fileid = (int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->pgno = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&argp->lsn, bp,  sizeof(argp->lsn));
      bp += sizeof(argp->lsn);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->indx = (u_int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->isdeleted = (u_int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memset(&argp->orig, 0, sizeof(argp->orig));
      memcpy(&argp->orig.size, bp, sizeof(u_int32_t));
      bp += sizeof(u_int32_t);
      argp->orig.data = bp;
      bp += argp->orig.size;

      memset(&argp->repl, 0, sizeof(argp->repl));
      memcpy(&argp->repl.size, bp, sizeof(u_int32_t));
      bp += sizeof(u_int32_t);
      argp->repl.data = bp;
      bp += argp->repl.size;

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->prefix = (u_int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->suffix = (u_int32_t)uinttmp;
      bp += sizeof(uinttmp);

      *argpp = argp;
      return (0);
}

/*
 * PUBLIC: int __bam_root_log __P((DB *, DB_TXN *, DB_LSN *,
 * PUBLIC:     u_int32_t, db_pgno_t, db_pgno_t, DB_LSN *));
 */
int
__bam_root_log(dbp, txnp, ret_lsnp, flags, meta_pgno, root_pgno, meta_lsn)
      DB *dbp;
      DB_TXN *txnp;
      DB_LSN *ret_lsnp;
      u_int32_t flags;
      db_pgno_t meta_pgno;
      db_pgno_t root_pgno;
      DB_LSN * meta_lsn;
{
      DBT logrec;
      DB_ENV *dbenv;
      DB_TXNLOGREC *lr;
      DB_LSN *lsnp, null_lsn, *rlsnp;
      u_int32_t uinttmp, rectype, txn_num;
      u_int npad;
      u_int8_t *bp;
      int is_durable, ret;

      dbenv = dbp->dbenv;
      COMPQUIET(lr, NULL);

      rectype = DB___bam_root;
      npad = 0;
      rlsnp = ret_lsnp;

      ret = 0;

      if (LF_ISSET(DB_LOG_NOT_DURABLE) ||
          F_ISSET(dbp, DB_AM_NOT_DURABLE)) {
            if (txnp == NULL)
                  return (0);
            is_durable = 0;
      } else
            is_durable = 1;

      if (txnp == NULL) {
            txn_num = 0;
            lsnp = &null_lsn;
            null_lsn.file = null_lsn.offset = 0;
      } else {
            if (TAILQ_FIRST(&txnp->kids) != NULL &&
                (ret = __txn_activekids(dbenv, rectype, txnp)) != 0)
                  return (ret);
            /*
             * We need to assign begin_lsn while holding region mutex.
             * That assignment is done inside the DbEnv->log_put call,
             * so pass in the appropriate memory location to be filled
             * in by the log_put code.
             */
            DB_SET_TXN_LSNP(txnp, &rlsnp, &lsnp);
            txn_num = txnp->txnid;
      }

      DB_ASSERT(dbenv, dbp->log_filename != NULL);
      if (dbp->log_filename->id == DB_LOGFILEID_INVALID &&
          (ret = __dbreg_lazy_id(dbp)) != 0)
            return (ret);

      logrec.size = sizeof(rectype) + sizeof(txn_num) + sizeof(DB_LSN)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(*meta_lsn);
      if (CRYPTO_ON(dbenv)) {
            npad =
                ((DB_CIPHER *)dbenv->crypto_handle)->adj_size(logrec.size);
            logrec.size += npad;
      }

      if (is_durable || txnp == NULL) {
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0)
                  return (ret);
      } else {
            if ((ret = __os_malloc(dbenv,
                logrec.size + sizeof(DB_TXNLOGREC), &lr)) != 0)
                  return (ret);
#ifdef DIAGNOSTIC
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0) {
                  __os_free(dbenv, lr);
                  return (ret);
            }
#else
            logrec.data = lr->data;
#endif
      }
      if (npad > 0)
            memset((u_int8_t *)logrec.data + logrec.size - npad, 0, npad);

      bp = logrec.data;

      memcpy(bp, &rectype, sizeof(rectype));
      bp += sizeof(rectype);

      memcpy(bp, &txn_num, sizeof(txn_num));
      bp += sizeof(txn_num);

      memcpy(bp, lsnp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      uinttmp = (u_int32_t)dbp->log_filename->id;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)meta_pgno;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)root_pgno;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      if (meta_lsn != NULL) {
            if (txnp != NULL) {
                  LOG *lp = dbenv->lg_handle->reginfo.primary;
                  if (LOG_COMPARE(meta_lsn, &lp->lsn) >= 0 && (ret =
                      __log_check_page_lsn(dbenv, dbp, meta_lsn) != 0))
                        return (ret);
            }
            memcpy(bp, meta_lsn, sizeof(*meta_lsn));
      } else
            memset(bp, 0, sizeof(*meta_lsn));
      bp += sizeof(*meta_lsn);

      DB_ASSERT(dbenv,
          (u_int32_t)(bp - (u_int8_t *)logrec.data) <= logrec.size);

      if (is_durable || txnp == NULL) {
            if ((ret = __log_put(dbenv, rlsnp,(DBT *)&logrec,
                flags | DB_LOG_NOCOPY)) == 0 && txnp != NULL) {
                  *lsnp = *rlsnp;
                  if (rlsnp != ret_lsnp)
                         *ret_lsnp = *rlsnp;
            }
      } else {
            ret = 0;
#ifdef DIAGNOSTIC
            /*
             * Set the debug bit if we are going to log non-durable
             * transactions so they will be ignored by recovery.
             */
            memcpy(lr->data, logrec.data, logrec.size);
            rectype |= DB_debug_FLAG;
            memcpy(logrec.data, &rectype, sizeof(rectype));

            if (!IS_REP_CLIENT(dbenv))
                  ret = __log_put(dbenv,
                      rlsnp, (DBT *)&logrec, flags | DB_LOG_NOCOPY);
#endif
            STAILQ_INSERT_HEAD(&txnp->logs, lr, links);
            F_SET((TXN_DETAIL *)txnp->td, TXN_DTL_INMEMORY);
            LSN_NOT_LOGGED(*ret_lsnp);
      }

#ifdef LOG_DIAGNOSTIC
      if (ret != 0)
            (void)__bam_root_print(dbenv,
                (DBT *)&logrec, ret_lsnp, DB_TXN_PRINT, NULL);
#endif

#ifdef DIAGNOSTIC
      __os_free(dbenv, logrec.data);
#else
      if (is_durable || txnp == NULL)
            __os_free(dbenv, logrec.data);
#endif
      return (ret);
}

/*
 * PUBLIC: int __bam_root_read __P((DB_ENV *, void *, __bam_root_args **));
 */
int
__bam_root_read(dbenv, recbuf, argpp)
      DB_ENV *dbenv;
      void *recbuf;
      __bam_root_args **argpp;
{
      __bam_root_args *argp;
      u_int32_t uinttmp;
      u_int8_t *bp;
      int ret;

      if ((ret = __os_malloc(dbenv,
          sizeof(__bam_root_args) + sizeof(DB_TXN), &argp)) != 0)
            return (ret);
      bp = recbuf;
      argp->txnp = (DB_TXN *)&argp[1];
      memset(argp->txnp, 0, sizeof(DB_TXN));

      memcpy(&argp->type, bp, sizeof(argp->type));
      bp += sizeof(argp->type);

      memcpy(&argp->txnp->txnid, bp, sizeof(argp->txnp->txnid));
      bp += sizeof(argp->txnp->txnid);

      memcpy(&argp->prev_lsn, bp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->fileid = (int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->meta_pgno = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->root_pgno = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&argp->meta_lsn, bp,  sizeof(argp->meta_lsn));
      bp += sizeof(argp->meta_lsn);

      *argpp = argp;
      return (0);
}

/*
 * PUBLIC: int __bam_curadj_log __P((DB *, DB_TXN *, DB_LSN *,
 * PUBLIC:     u_int32_t, db_ca_mode, db_pgno_t, db_pgno_t, db_pgno_t,
 * PUBLIC:     u_int32_t, u_int32_t, u_int32_t));
 */
int
__bam_curadj_log(dbp, txnp, ret_lsnp, flags, mode, from_pgno, to_pgno, left_pgno, first_indx,
    from_indx, to_indx)
      DB *dbp;
      DB_TXN *txnp;
      DB_LSN *ret_lsnp;
      u_int32_t flags;
      db_ca_mode mode;
      db_pgno_t from_pgno;
      db_pgno_t to_pgno;
      db_pgno_t left_pgno;
      u_int32_t first_indx;
      u_int32_t from_indx;
      u_int32_t to_indx;
{
      DBT logrec;
      DB_ENV *dbenv;
      DB_TXNLOGREC *lr;
      DB_LSN *lsnp, null_lsn, *rlsnp;
      u_int32_t uinttmp, rectype, txn_num;
      u_int npad;
      u_int8_t *bp;
      int is_durable, ret;

      dbenv = dbp->dbenv;
      COMPQUIET(lr, NULL);

      rectype = DB___bam_curadj;
      npad = 0;
      rlsnp = ret_lsnp;

      ret = 0;

      if (LF_ISSET(DB_LOG_NOT_DURABLE) ||
          F_ISSET(dbp, DB_AM_NOT_DURABLE)) {
            if (txnp == NULL)
                  return (0);
            is_durable = 0;
      } else
            is_durable = 1;

      if (txnp == NULL) {
            txn_num = 0;
            lsnp = &null_lsn;
            null_lsn.file = null_lsn.offset = 0;
      } else {
            if (TAILQ_FIRST(&txnp->kids) != NULL &&
                (ret = __txn_activekids(dbenv, rectype, txnp)) != 0)
                  return (ret);
            /*
             * We need to assign begin_lsn while holding region mutex.
             * That assignment is done inside the DbEnv->log_put call,
             * so pass in the appropriate memory location to be filled
             * in by the log_put code.
             */
            DB_SET_TXN_LSNP(txnp, &rlsnp, &lsnp);
            txn_num = txnp->txnid;
      }

      DB_ASSERT(dbenv, dbp->log_filename != NULL);
      if (dbp->log_filename->id == DB_LOGFILEID_INVALID &&
          (ret = __dbreg_lazy_id(dbp)) != 0)
            return (ret);

      logrec.size = sizeof(rectype) + sizeof(txn_num) + sizeof(DB_LSN)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t);
      if (CRYPTO_ON(dbenv)) {
            npad =
                ((DB_CIPHER *)dbenv->crypto_handle)->adj_size(logrec.size);
            logrec.size += npad;
      }

      if (is_durable || txnp == NULL) {
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0)
                  return (ret);
      } else {
            if ((ret = __os_malloc(dbenv,
                logrec.size + sizeof(DB_TXNLOGREC), &lr)) != 0)
                  return (ret);
#ifdef DIAGNOSTIC
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0) {
                  __os_free(dbenv, lr);
                  return (ret);
            }
#else
            logrec.data = lr->data;
#endif
      }
      if (npad > 0)
            memset((u_int8_t *)logrec.data + logrec.size - npad, 0, npad);

      bp = logrec.data;

      memcpy(bp, &rectype, sizeof(rectype));
      bp += sizeof(rectype);

      memcpy(bp, &txn_num, sizeof(txn_num));
      bp += sizeof(txn_num);

      memcpy(bp, lsnp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      uinttmp = (u_int32_t)dbp->log_filename->id;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)mode;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)from_pgno;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)to_pgno;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)left_pgno;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)first_indx;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)from_indx;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)to_indx;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      DB_ASSERT(dbenv,
          (u_int32_t)(bp - (u_int8_t *)logrec.data) <= logrec.size);

      if (is_durable || txnp == NULL) {
            if ((ret = __log_put(dbenv, rlsnp,(DBT *)&logrec,
                flags | DB_LOG_NOCOPY)) == 0 && txnp != NULL) {
                  *lsnp = *rlsnp;
                  if (rlsnp != ret_lsnp)
                         *ret_lsnp = *rlsnp;
            }
      } else {
            ret = 0;
#ifdef DIAGNOSTIC
            /*
             * Set the debug bit if we are going to log non-durable
             * transactions so they will be ignored by recovery.
             */
            memcpy(lr->data, logrec.data, logrec.size);
            rectype |= DB_debug_FLAG;
            memcpy(logrec.data, &rectype, sizeof(rectype));

            if (!IS_REP_CLIENT(dbenv))
                  ret = __log_put(dbenv,
                      rlsnp, (DBT *)&logrec, flags | DB_LOG_NOCOPY);
#endif
            STAILQ_INSERT_HEAD(&txnp->logs, lr, links);
            F_SET((TXN_DETAIL *)txnp->td, TXN_DTL_INMEMORY);
            LSN_NOT_LOGGED(*ret_lsnp);
      }

#ifdef LOG_DIAGNOSTIC
      if (ret != 0)
            (void)__bam_curadj_print(dbenv,
                (DBT *)&logrec, ret_lsnp, DB_TXN_PRINT, NULL);
#endif

#ifdef DIAGNOSTIC
      __os_free(dbenv, logrec.data);
#else
      if (is_durable || txnp == NULL)
            __os_free(dbenv, logrec.data);
#endif
      return (ret);
}

/*
 * PUBLIC: int __bam_curadj_read __P((DB_ENV *, void *, __bam_curadj_args **));
 */
int
__bam_curadj_read(dbenv, recbuf, argpp)
      DB_ENV *dbenv;
      void *recbuf;
      __bam_curadj_args **argpp;
{
      __bam_curadj_args *argp;
      u_int32_t uinttmp;
      u_int8_t *bp;
      int ret;

      if ((ret = __os_malloc(dbenv,
          sizeof(__bam_curadj_args) + sizeof(DB_TXN), &argp)) != 0)
            return (ret);
      bp = recbuf;
      argp->txnp = (DB_TXN *)&argp[1];
      memset(argp->txnp, 0, sizeof(DB_TXN));

      memcpy(&argp->type, bp, sizeof(argp->type));
      bp += sizeof(argp->type);

      memcpy(&argp->txnp->txnid, bp, sizeof(argp->txnp->txnid));
      bp += sizeof(argp->txnp->txnid);

      memcpy(&argp->prev_lsn, bp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->fileid = (int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->mode = (db_ca_mode)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->from_pgno = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->to_pgno = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->left_pgno = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->first_indx = (u_int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->from_indx = (u_int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->to_indx = (u_int32_t)uinttmp;
      bp += sizeof(uinttmp);

      *argpp = argp;
      return (0);
}

/*
 * PUBLIC: int __bam_rcuradj_log __P((DB *, DB_TXN *, DB_LSN *,
 * PUBLIC:     u_int32_t, ca_recno_arg, db_pgno_t, db_recno_t, u_int32_t));
 */
int
__bam_rcuradj_log(dbp, txnp, ret_lsnp, flags, mode, root, recno, order)
      DB *dbp;
      DB_TXN *txnp;
      DB_LSN *ret_lsnp;
      u_int32_t flags;
      ca_recno_arg mode;
      db_pgno_t root;
      db_recno_t recno;
      u_int32_t order;
{
      DBT logrec;
      DB_ENV *dbenv;
      DB_TXNLOGREC *lr;
      DB_LSN *lsnp, null_lsn, *rlsnp;
      u_int32_t uinttmp, rectype, txn_num;
      u_int npad;
      u_int8_t *bp;
      int is_durable, ret;

      dbenv = dbp->dbenv;
      COMPQUIET(lr, NULL);

      rectype = DB___bam_rcuradj;
      npad = 0;
      rlsnp = ret_lsnp;

      ret = 0;

      if (LF_ISSET(DB_LOG_NOT_DURABLE) ||
          F_ISSET(dbp, DB_AM_NOT_DURABLE)) {
            if (txnp == NULL)
                  return (0);
            is_durable = 0;
      } else
            is_durable = 1;

      if (txnp == NULL) {
            txn_num = 0;
            lsnp = &null_lsn;
            null_lsn.file = null_lsn.offset = 0;
      } else {
            if (TAILQ_FIRST(&txnp->kids) != NULL &&
                (ret = __txn_activekids(dbenv, rectype, txnp)) != 0)
                  return (ret);
            /*
             * We need to assign begin_lsn while holding region mutex.
             * That assignment is done inside the DbEnv->log_put call,
             * so pass in the appropriate memory location to be filled
             * in by the log_put code.
             */
            DB_SET_TXN_LSNP(txnp, &rlsnp, &lsnp);
            txn_num = txnp->txnid;
      }

      DB_ASSERT(dbenv, dbp->log_filename != NULL);
      if (dbp->log_filename->id == DB_LOGFILEID_INVALID &&
          (ret = __dbreg_lazy_id(dbp)) != 0)
            return (ret);

      logrec.size = sizeof(rectype) + sizeof(txn_num) + sizeof(DB_LSN)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t);
      if (CRYPTO_ON(dbenv)) {
            npad =
                ((DB_CIPHER *)dbenv->crypto_handle)->adj_size(logrec.size);
            logrec.size += npad;
      }

      if (is_durable || txnp == NULL) {
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0)
                  return (ret);
      } else {
            if ((ret = __os_malloc(dbenv,
                logrec.size + sizeof(DB_TXNLOGREC), &lr)) != 0)
                  return (ret);
#ifdef DIAGNOSTIC
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0) {
                  __os_free(dbenv, lr);
                  return (ret);
            }
#else
            logrec.data = lr->data;
#endif
      }
      if (npad > 0)
            memset((u_int8_t *)logrec.data + logrec.size - npad, 0, npad);

      bp = logrec.data;

      memcpy(bp, &rectype, sizeof(rectype));
      bp += sizeof(rectype);

      memcpy(bp, &txn_num, sizeof(txn_num));
      bp += sizeof(txn_num);

      memcpy(bp, lsnp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      uinttmp = (u_int32_t)dbp->log_filename->id;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)mode;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)root;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)recno;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)order;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      DB_ASSERT(dbenv,
          (u_int32_t)(bp - (u_int8_t *)logrec.data) <= logrec.size);

      if (is_durable || txnp == NULL) {
            if ((ret = __log_put(dbenv, rlsnp,(DBT *)&logrec,
                flags | DB_LOG_NOCOPY)) == 0 && txnp != NULL) {
                  *lsnp = *rlsnp;
                  if (rlsnp != ret_lsnp)
                         *ret_lsnp = *rlsnp;
            }
      } else {
            ret = 0;
#ifdef DIAGNOSTIC
            /*
             * Set the debug bit if we are going to log non-durable
             * transactions so they will be ignored by recovery.
             */
            memcpy(lr->data, logrec.data, logrec.size);
            rectype |= DB_debug_FLAG;
            memcpy(logrec.data, &rectype, sizeof(rectype));

            if (!IS_REP_CLIENT(dbenv))
                  ret = __log_put(dbenv,
                      rlsnp, (DBT *)&logrec, flags | DB_LOG_NOCOPY);
#endif
            STAILQ_INSERT_HEAD(&txnp->logs, lr, links);
            F_SET((TXN_DETAIL *)txnp->td, TXN_DTL_INMEMORY);
            LSN_NOT_LOGGED(*ret_lsnp);
      }

#ifdef LOG_DIAGNOSTIC
      if (ret != 0)
            (void)__bam_rcuradj_print(dbenv,
                (DBT *)&logrec, ret_lsnp, DB_TXN_PRINT, NULL);
#endif

#ifdef DIAGNOSTIC
      __os_free(dbenv, logrec.data);
#else
      if (is_durable || txnp == NULL)
            __os_free(dbenv, logrec.data);
#endif
      return (ret);
}

/*
 * PUBLIC: int __bam_rcuradj_read __P((DB_ENV *, void *,
 * PUBLIC:     __bam_rcuradj_args **));
 */
int
__bam_rcuradj_read(dbenv, recbuf, argpp)
      DB_ENV *dbenv;
      void *recbuf;
      __bam_rcuradj_args **argpp;
{
      __bam_rcuradj_args *argp;
      u_int32_t uinttmp;
      u_int8_t *bp;
      int ret;

      if ((ret = __os_malloc(dbenv,
          sizeof(__bam_rcuradj_args) + sizeof(DB_TXN), &argp)) != 0)
            return (ret);
      bp = recbuf;
      argp->txnp = (DB_TXN *)&argp[1];
      memset(argp->txnp, 0, sizeof(DB_TXN));

      memcpy(&argp->type, bp, sizeof(argp->type));
      bp += sizeof(argp->type);

      memcpy(&argp->txnp->txnid, bp, sizeof(argp->txnp->txnid));
      bp += sizeof(argp->txnp->txnid);

      memcpy(&argp->prev_lsn, bp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->fileid = (int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->mode = (ca_recno_arg)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->root = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->recno = (db_recno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->order = (u_int32_t)uinttmp;
      bp += sizeof(uinttmp);

      *argpp = argp;
      return (0);
}

/*
 * PUBLIC: int __bam_relink_43_read __P((DB_ENV *, void *,
 * PUBLIC:     __bam_relink_43_args **));
 */
int
__bam_relink_43_read(dbenv, recbuf, argpp)
      DB_ENV *dbenv;
      void *recbuf;
      __bam_relink_43_args **argpp;
{
      __bam_relink_43_args *argp;
      u_int32_t uinttmp;
      u_int8_t *bp;
      int ret;

      if ((ret = __os_malloc(dbenv,
          sizeof(__bam_relink_43_args) + sizeof(DB_TXN), &argp)) != 0)
            return (ret);
      bp = recbuf;
      argp->txnp = (DB_TXN *)&argp[1];
      memset(argp->txnp, 0, sizeof(DB_TXN));

      memcpy(&argp->type, bp, sizeof(argp->type));
      bp += sizeof(argp->type);

      memcpy(&argp->txnp->txnid, bp, sizeof(argp->txnp->txnid));
      bp += sizeof(argp->txnp->txnid);

      memcpy(&argp->prev_lsn, bp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->fileid = (int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->pgno = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&argp->lsn, bp,  sizeof(argp->lsn));
      bp += sizeof(argp->lsn);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->prev = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&argp->lsn_prev, bp,  sizeof(argp->lsn_prev));
      bp += sizeof(argp->lsn_prev);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->next = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&argp->lsn_next, bp,  sizeof(argp->lsn_next));
      bp += sizeof(argp->lsn_next);

      *argpp = argp;
      return (0);
}

/*
 * PUBLIC: int __bam_relink_log __P((DB *, DB_TXN *, DB_LSN *,
 * PUBLIC:     u_int32_t, db_pgno_t, db_pgno_t, db_pgno_t, DB_LSN *, db_pgno_t,
 * PUBLIC:     DB_LSN *));
 */
int
__bam_relink_log(dbp, txnp, ret_lsnp, flags, pgno, new_pgno, prev, lsn_prev, next,
    lsn_next)
      DB *dbp;
      DB_TXN *txnp;
      DB_LSN *ret_lsnp;
      u_int32_t flags;
      db_pgno_t pgno;
      db_pgno_t new_pgno;
      db_pgno_t prev;
      DB_LSN * lsn_prev;
      db_pgno_t next;
      DB_LSN * lsn_next;
{
      DBT logrec;
      DB_ENV *dbenv;
      DB_TXNLOGREC *lr;
      DB_LSN *lsnp, null_lsn, *rlsnp;
      u_int32_t uinttmp, rectype, txn_num;
      u_int npad;
      u_int8_t *bp;
      int is_durable, ret;

      dbenv = dbp->dbenv;
      COMPQUIET(lr, NULL);

      rectype = DB___bam_relink;
      npad = 0;
      rlsnp = ret_lsnp;

      ret = 0;

      if (LF_ISSET(DB_LOG_NOT_DURABLE) ||
          F_ISSET(dbp, DB_AM_NOT_DURABLE)) {
            if (txnp == NULL)
                  return (0);
            is_durable = 0;
      } else
            is_durable = 1;

      if (txnp == NULL) {
            txn_num = 0;
            lsnp = &null_lsn;
            null_lsn.file = null_lsn.offset = 0;
      } else {
            if (TAILQ_FIRST(&txnp->kids) != NULL &&
                (ret = __txn_activekids(dbenv, rectype, txnp)) != 0)
                  return (ret);
            /*
             * We need to assign begin_lsn while holding region mutex.
             * That assignment is done inside the DbEnv->log_put call,
             * so pass in the appropriate memory location to be filled
             * in by the log_put code.
             */
            DB_SET_TXN_LSNP(txnp, &rlsnp, &lsnp);
            txn_num = txnp->txnid;
      }

      DB_ASSERT(dbenv, dbp->log_filename != NULL);
      if (dbp->log_filename->id == DB_LOGFILEID_INVALID &&
          (ret = __dbreg_lazy_id(dbp)) != 0)
            return (ret);

      logrec.size = sizeof(rectype) + sizeof(txn_num) + sizeof(DB_LSN)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(*lsn_prev)
          + sizeof(u_int32_t)
          + sizeof(*lsn_next);
      if (CRYPTO_ON(dbenv)) {
            npad =
                ((DB_CIPHER *)dbenv->crypto_handle)->adj_size(logrec.size);
            logrec.size += npad;
      }

      if (is_durable || txnp == NULL) {
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0)
                  return (ret);
      } else {
            if ((ret = __os_malloc(dbenv,
                logrec.size + sizeof(DB_TXNLOGREC), &lr)) != 0)
                  return (ret);
#ifdef DIAGNOSTIC
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0) {
                  __os_free(dbenv, lr);
                  return (ret);
            }
#else
            logrec.data = lr->data;
#endif
      }
      if (npad > 0)
            memset((u_int8_t *)logrec.data + logrec.size - npad, 0, npad);

      bp = logrec.data;

      memcpy(bp, &rectype, sizeof(rectype));
      bp += sizeof(rectype);

      memcpy(bp, &txn_num, sizeof(txn_num));
      bp += sizeof(txn_num);

      memcpy(bp, lsnp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      uinttmp = (u_int32_t)dbp->log_filename->id;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)pgno;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)new_pgno;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)prev;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      if (lsn_prev != NULL) {
            if (txnp != NULL) {
                  LOG *lp = dbenv->lg_handle->reginfo.primary;
                  if (LOG_COMPARE(lsn_prev, &lp->lsn) >= 0 && (ret =
                      __log_check_page_lsn(dbenv, dbp, lsn_prev) != 0))
                        return (ret);
            }
            memcpy(bp, lsn_prev, sizeof(*lsn_prev));
      } else
            memset(bp, 0, sizeof(*lsn_prev));
      bp += sizeof(*lsn_prev);

      uinttmp = (u_int32_t)next;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      if (lsn_next != NULL) {
            if (txnp != NULL) {
                  LOG *lp = dbenv->lg_handle->reginfo.primary;
                  if (LOG_COMPARE(lsn_next, &lp->lsn) >= 0 && (ret =
                      __log_check_page_lsn(dbenv, dbp, lsn_next) != 0))
                        return (ret);
            }
            memcpy(bp, lsn_next, sizeof(*lsn_next));
      } else
            memset(bp, 0, sizeof(*lsn_next));
      bp += sizeof(*lsn_next);

      DB_ASSERT(dbenv,
          (u_int32_t)(bp - (u_int8_t *)logrec.data) <= logrec.size);

      if (is_durable || txnp == NULL) {
            if ((ret = __log_put(dbenv, rlsnp,(DBT *)&logrec,
                flags | DB_LOG_NOCOPY)) == 0 && txnp != NULL) {
                  *lsnp = *rlsnp;
                  if (rlsnp != ret_lsnp)
                         *ret_lsnp = *rlsnp;
            }
      } else {
            ret = 0;
#ifdef DIAGNOSTIC
            /*
             * Set the debug bit if we are going to log non-durable
             * transactions so they will be ignored by recovery.
             */
            memcpy(lr->data, logrec.data, logrec.size);
            rectype |= DB_debug_FLAG;
            memcpy(logrec.data, &rectype, sizeof(rectype));

            if (!IS_REP_CLIENT(dbenv))
                  ret = __log_put(dbenv,
                      rlsnp, (DBT *)&logrec, flags | DB_LOG_NOCOPY);
#endif
            STAILQ_INSERT_HEAD(&txnp->logs, lr, links);
            F_SET((TXN_DETAIL *)txnp->td, TXN_DTL_INMEMORY);
            LSN_NOT_LOGGED(*ret_lsnp);
      }

#ifdef LOG_DIAGNOSTIC
      if (ret != 0)
            (void)__bam_relink_print(dbenv,
                (DBT *)&logrec, ret_lsnp, DB_TXN_PRINT, NULL);
#endif

#ifdef DIAGNOSTIC
      __os_free(dbenv, logrec.data);
#else
      if (is_durable || txnp == NULL)
            __os_free(dbenv, logrec.data);
#endif
      return (ret);
}

/*
 * PUBLIC: int __bam_relink_read __P((DB_ENV *, void *, __bam_relink_args **));
 */
int
__bam_relink_read(dbenv, recbuf, argpp)
      DB_ENV *dbenv;
      void *recbuf;
      __bam_relink_args **argpp;
{
      __bam_relink_args *argp;
      u_int32_t uinttmp;
      u_int8_t *bp;
      int ret;

      if ((ret = __os_malloc(dbenv,
          sizeof(__bam_relink_args) + sizeof(DB_TXN), &argp)) != 0)
            return (ret);
      bp = recbuf;
      argp->txnp = (DB_TXN *)&argp[1];
      memset(argp->txnp, 0, sizeof(DB_TXN));

      memcpy(&argp->type, bp, sizeof(argp->type));
      bp += sizeof(argp->type);

      memcpy(&argp->txnp->txnid, bp, sizeof(argp->txnp->txnid));
      bp += sizeof(argp->txnp->txnid);

      memcpy(&argp->prev_lsn, bp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->fileid = (int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->pgno = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->new_pgno = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->prev = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&argp->lsn_prev, bp,  sizeof(argp->lsn_prev));
      bp += sizeof(argp->lsn_prev);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->next = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&argp->lsn_next, bp,  sizeof(argp->lsn_next));
      bp += sizeof(argp->lsn_next);

      *argpp = argp;
      return (0);
}

/*
 * PUBLIC: int __bam_merge_log __P((DB *, DB_TXN *, DB_LSN *,
 * PUBLIC:     u_int32_t, db_pgno_t, DB_LSN *, db_pgno_t, DB_LSN *, const DBT *,
 * PUBLIC:     const DBT *, const DBT *));
 */
int
__bam_merge_log(dbp, txnp, ret_lsnp, flags, pgno, lsn, npgno, nlsn, hdr,
    data, ind)
      DB *dbp;
      DB_TXN *txnp;
      DB_LSN *ret_lsnp;
      u_int32_t flags;
      db_pgno_t pgno;
      DB_LSN * lsn;
      db_pgno_t npgno;
      DB_LSN * nlsn;
      const DBT *hdr;
      const DBT *data;
      const DBT *ind;
{
      DBT logrec;
      DB_ENV *dbenv;
      DB_TXNLOGREC *lr;
      DB_LSN *lsnp, null_lsn, *rlsnp;
      u_int32_t zero, uinttmp, rectype, txn_num;
      u_int npad;
      u_int8_t *bp;
      int is_durable, ret;

      dbenv = dbp->dbenv;
      COMPQUIET(lr, NULL);

      rectype = DB___bam_merge;
      npad = 0;
      rlsnp = ret_lsnp;

      ret = 0;

      if (LF_ISSET(DB_LOG_NOT_DURABLE) ||
          F_ISSET(dbp, DB_AM_NOT_DURABLE)) {
            if (txnp == NULL)
                  return (0);
            is_durable = 0;
      } else
            is_durable = 1;

      if (txnp == NULL) {
            txn_num = 0;
            lsnp = &null_lsn;
            null_lsn.file = null_lsn.offset = 0;
      } else {
            if (TAILQ_FIRST(&txnp->kids) != NULL &&
                (ret = __txn_activekids(dbenv, rectype, txnp)) != 0)
                  return (ret);
            /*
             * We need to assign begin_lsn while holding region mutex.
             * That assignment is done inside the DbEnv->log_put call,
             * so pass in the appropriate memory location to be filled
             * in by the log_put code.
             */
            DB_SET_TXN_LSNP(txnp, &rlsnp, &lsnp);
            txn_num = txnp->txnid;
      }

      DB_ASSERT(dbenv, dbp->log_filename != NULL);
      if (dbp->log_filename->id == DB_LOGFILEID_INVALID &&
          (ret = __dbreg_lazy_id(dbp)) != 0)
            return (ret);

      logrec.size = sizeof(rectype) + sizeof(txn_num) + sizeof(DB_LSN)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(*lsn)
          + sizeof(u_int32_t)
          + sizeof(*nlsn)
          + sizeof(u_int32_t) + (hdr == NULL ? 0 : hdr->size)
          + sizeof(u_int32_t) + (data == NULL ? 0 : data->size)
          + sizeof(u_int32_t) + (ind == NULL ? 0 : ind->size);
      if (CRYPTO_ON(dbenv)) {
            npad =
                ((DB_CIPHER *)dbenv->crypto_handle)->adj_size(logrec.size);
            logrec.size += npad;
      }

      if (is_durable || txnp == NULL) {
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0)
                  return (ret);
      } else {
            if ((ret = __os_malloc(dbenv,
                logrec.size + sizeof(DB_TXNLOGREC), &lr)) != 0)
                  return (ret);
#ifdef DIAGNOSTIC
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0) {
                  __os_free(dbenv, lr);
                  return (ret);
            }
#else
            logrec.data = lr->data;
#endif
      }
      if (npad > 0)
            memset((u_int8_t *)logrec.data + logrec.size - npad, 0, npad);

      bp = logrec.data;

      memcpy(bp, &rectype, sizeof(rectype));
      bp += sizeof(rectype);

      memcpy(bp, &txn_num, sizeof(txn_num));
      bp += sizeof(txn_num);

      memcpy(bp, lsnp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      uinttmp = (u_int32_t)dbp->log_filename->id;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)pgno;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      if (lsn != NULL) {
            if (txnp != NULL) {
                  LOG *lp = dbenv->lg_handle->reginfo.primary;
                  if (LOG_COMPARE(lsn, &lp->lsn) >= 0 && (ret =
                      __log_check_page_lsn(dbenv, dbp, lsn) != 0))
                        return (ret);
            }
            memcpy(bp, lsn, sizeof(*lsn));
      } else
            memset(bp, 0, sizeof(*lsn));
      bp += sizeof(*lsn);

      uinttmp = (u_int32_t)npgno;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      if (nlsn != NULL) {
            if (txnp != NULL) {
                  LOG *lp = dbenv->lg_handle->reginfo.primary;
                  if (LOG_COMPARE(nlsn, &lp->lsn) >= 0 && (ret =
                      __log_check_page_lsn(dbenv, dbp, nlsn) != 0))
                        return (ret);
            }
            memcpy(bp, nlsn, sizeof(*nlsn));
      } else
            memset(bp, 0, sizeof(*nlsn));
      bp += sizeof(*nlsn);

      if (hdr == NULL) {
            zero = 0;
            memcpy(bp, &zero, sizeof(u_int32_t));
            bp += sizeof(u_int32_t);
      } else {
            memcpy(bp, &hdr->size, sizeof(hdr->size));
            bp += sizeof(hdr->size);
            memcpy(bp, hdr->data, hdr->size);
            bp += hdr->size;
      }

      if (data == NULL) {
            zero = 0;
            memcpy(bp, &zero, sizeof(u_int32_t));
            bp += sizeof(u_int32_t);
      } else {
            memcpy(bp, &data->size, sizeof(data->size));
            bp += sizeof(data->size);
            memcpy(bp, data->data, data->size);
            bp += data->size;
      }

      if (ind == NULL) {
            zero = 0;
            memcpy(bp, &zero, sizeof(u_int32_t));
            bp += sizeof(u_int32_t);
      } else {
            memcpy(bp, &ind->size, sizeof(ind->size));
            bp += sizeof(ind->size);
            memcpy(bp, ind->data, ind->size);
            bp += ind->size;
      }

      DB_ASSERT(dbenv,
          (u_int32_t)(bp - (u_int8_t *)logrec.data) <= logrec.size);

      if (is_durable || txnp == NULL) {
            if ((ret = __log_put(dbenv, rlsnp,(DBT *)&logrec,
                flags | DB_LOG_NOCOPY)) == 0 && txnp != NULL) {
                  *lsnp = *rlsnp;
                  if (rlsnp != ret_lsnp)
                         *ret_lsnp = *rlsnp;
            }
      } else {
            ret = 0;
#ifdef DIAGNOSTIC
            /*
             * Set the debug bit if we are going to log non-durable
             * transactions so they will be ignored by recovery.
             */
            memcpy(lr->data, logrec.data, logrec.size);
            rectype |= DB_debug_FLAG;
            memcpy(logrec.data, &rectype, sizeof(rectype));

            if (!IS_REP_CLIENT(dbenv))
                  ret = __log_put(dbenv,
                      rlsnp, (DBT *)&logrec, flags | DB_LOG_NOCOPY);
#endif
            STAILQ_INSERT_HEAD(&txnp->logs, lr, links);
            F_SET((TXN_DETAIL *)txnp->td, TXN_DTL_INMEMORY);
            LSN_NOT_LOGGED(*ret_lsnp);
      }

#ifdef LOG_DIAGNOSTIC
      if (ret != 0)
            (void)__bam_merge_print(dbenv,
                (DBT *)&logrec, ret_lsnp, DB_TXN_PRINT, NULL);
#endif

#ifdef DIAGNOSTIC
      __os_free(dbenv, logrec.data);
#else
      if (is_durable || txnp == NULL)
            __os_free(dbenv, logrec.data);
#endif
      return (ret);
}

/*
 * PUBLIC: int __bam_merge_read __P((DB_ENV *, void *, __bam_merge_args **));
 */
int
__bam_merge_read(dbenv, recbuf, argpp)
      DB_ENV *dbenv;
      void *recbuf;
      __bam_merge_args **argpp;
{
      __bam_merge_args *argp;
      u_int32_t uinttmp;
      u_int8_t *bp;
      int ret;

      if ((ret = __os_malloc(dbenv,
          sizeof(__bam_merge_args) + sizeof(DB_TXN), &argp)) != 0)
            return (ret);
      bp = recbuf;
      argp->txnp = (DB_TXN *)&argp[1];
      memset(argp->txnp, 0, sizeof(DB_TXN));

      memcpy(&argp->type, bp, sizeof(argp->type));
      bp += sizeof(argp->type);

      memcpy(&argp->txnp->txnid, bp, sizeof(argp->txnp->txnid));
      bp += sizeof(argp->txnp->txnid);

      memcpy(&argp->prev_lsn, bp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->fileid = (int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->pgno = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&argp->lsn, bp,  sizeof(argp->lsn));
      bp += sizeof(argp->lsn);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->npgno = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&argp->nlsn, bp,  sizeof(argp->nlsn));
      bp += sizeof(argp->nlsn);

      memset(&argp->hdr, 0, sizeof(argp->hdr));
      memcpy(&argp->hdr.size, bp, sizeof(u_int32_t));
      bp += sizeof(u_int32_t);
      argp->hdr.data = bp;
      bp += argp->hdr.size;

      memset(&argp->data, 0, sizeof(argp->data));
      memcpy(&argp->data.size, bp, sizeof(u_int32_t));
      bp += sizeof(u_int32_t);
      argp->data.data = bp;
      bp += argp->data.size;

      memset(&argp->ind, 0, sizeof(argp->ind));
      memcpy(&argp->ind.size, bp, sizeof(u_int32_t));
      bp += sizeof(u_int32_t);
      argp->ind.data = bp;
      bp += argp->ind.size;

      *argpp = argp;
      return (0);
}

/*
 * PUBLIC: int __bam_pgno_log __P((DB *, DB_TXN *, DB_LSN *,
 * PUBLIC:     u_int32_t, db_pgno_t, DB_LSN *, u_int32_t, db_pgno_t,
 * PUBLIC:     db_pgno_t));
 */
int
__bam_pgno_log(dbp, txnp, ret_lsnp, flags, pgno, lsn, indx, opgno, npgno)
      DB *dbp;
      DB_TXN *txnp;
      DB_LSN *ret_lsnp;
      u_int32_t flags;
      db_pgno_t pgno;
      DB_LSN * lsn;
      u_int32_t indx;
      db_pgno_t opgno;
      db_pgno_t npgno;
{
      DBT logrec;
      DB_ENV *dbenv;
      DB_TXNLOGREC *lr;
      DB_LSN *lsnp, null_lsn, *rlsnp;
      u_int32_t uinttmp, rectype, txn_num;
      u_int npad;
      u_int8_t *bp;
      int is_durable, ret;

      dbenv = dbp->dbenv;
      COMPQUIET(lr, NULL);

      rectype = DB___bam_pgno;
      npad = 0;
      rlsnp = ret_lsnp;

      ret = 0;

      if (LF_ISSET(DB_LOG_NOT_DURABLE) ||
          F_ISSET(dbp, DB_AM_NOT_DURABLE)) {
            if (txnp == NULL)
                  return (0);
            is_durable = 0;
      } else
            is_durable = 1;

      if (txnp == NULL) {
            txn_num = 0;
            lsnp = &null_lsn;
            null_lsn.file = null_lsn.offset = 0;
      } else {
            if (TAILQ_FIRST(&txnp->kids) != NULL &&
                (ret = __txn_activekids(dbenv, rectype, txnp)) != 0)
                  return (ret);
            /*
             * We need to assign begin_lsn while holding region mutex.
             * That assignment is done inside the DbEnv->log_put call,
             * so pass in the appropriate memory location to be filled
             * in by the log_put code.
             */
            DB_SET_TXN_LSNP(txnp, &rlsnp, &lsnp);
            txn_num = txnp->txnid;
      }

      DB_ASSERT(dbenv, dbp->log_filename != NULL);
      if (dbp->log_filename->id == DB_LOGFILEID_INVALID &&
          (ret = __dbreg_lazy_id(dbp)) != 0)
            return (ret);

      logrec.size = sizeof(rectype) + sizeof(txn_num) + sizeof(DB_LSN)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(*lsn)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t)
          + sizeof(u_int32_t);
      if (CRYPTO_ON(dbenv)) {
            npad =
                ((DB_CIPHER *)dbenv->crypto_handle)->adj_size(logrec.size);
            logrec.size += npad;
      }

      if (is_durable || txnp == NULL) {
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0)
                  return (ret);
      } else {
            if ((ret = __os_malloc(dbenv,
                logrec.size + sizeof(DB_TXNLOGREC), &lr)) != 0)
                  return (ret);
#ifdef DIAGNOSTIC
            if ((ret =
                __os_malloc(dbenv, logrec.size, &logrec.data)) != 0) {
                  __os_free(dbenv, lr);
                  return (ret);
            }
#else
            logrec.data = lr->data;
#endif
      }
      if (npad > 0)
            memset((u_int8_t *)logrec.data + logrec.size - npad, 0, npad);

      bp = logrec.data;

      memcpy(bp, &rectype, sizeof(rectype));
      bp += sizeof(rectype);

      memcpy(bp, &txn_num, sizeof(txn_num));
      bp += sizeof(txn_num);

      memcpy(bp, lsnp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      uinttmp = (u_int32_t)dbp->log_filename->id;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)pgno;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      if (lsn != NULL) {
            if (txnp != NULL) {
                  LOG *lp = dbenv->lg_handle->reginfo.primary;
                  if (LOG_COMPARE(lsn, &lp->lsn) >= 0 && (ret =
                      __log_check_page_lsn(dbenv, dbp, lsn) != 0))
                        return (ret);
            }
            memcpy(bp, lsn, sizeof(*lsn));
      } else
            memset(bp, 0, sizeof(*lsn));
      bp += sizeof(*lsn);

      uinttmp = (u_int32_t)indx;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)opgno;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      uinttmp = (u_int32_t)npgno;
      memcpy(bp, &uinttmp, sizeof(uinttmp));
      bp += sizeof(uinttmp);

      DB_ASSERT(dbenv,
          (u_int32_t)(bp - (u_int8_t *)logrec.data) <= logrec.size);

      if (is_durable || txnp == NULL) {
            if ((ret = __log_put(dbenv, rlsnp,(DBT *)&logrec,
                flags | DB_LOG_NOCOPY)) == 0 && txnp != NULL) {
                  *lsnp = *rlsnp;
                  if (rlsnp != ret_lsnp)
                         *ret_lsnp = *rlsnp;
            }
      } else {
            ret = 0;
#ifdef DIAGNOSTIC
            /*
             * Set the debug bit if we are going to log non-durable
             * transactions so they will be ignored by recovery.
             */
            memcpy(lr->data, logrec.data, logrec.size);
            rectype |= DB_debug_FLAG;
            memcpy(logrec.data, &rectype, sizeof(rectype));

            if (!IS_REP_CLIENT(dbenv))
                  ret = __log_put(dbenv,
                      rlsnp, (DBT *)&logrec, flags | DB_LOG_NOCOPY);
#endif
            STAILQ_INSERT_HEAD(&txnp->logs, lr, links);
            F_SET((TXN_DETAIL *)txnp->td, TXN_DTL_INMEMORY);
            LSN_NOT_LOGGED(*ret_lsnp);
      }

#ifdef LOG_DIAGNOSTIC
      if (ret != 0)
            (void)__bam_pgno_print(dbenv,
                (DBT *)&logrec, ret_lsnp, DB_TXN_PRINT, NULL);
#endif

#ifdef DIAGNOSTIC
      __os_free(dbenv, logrec.data);
#else
      if (is_durable || txnp == NULL)
            __os_free(dbenv, logrec.data);
#endif
      return (ret);
}

/*
 * PUBLIC: int __bam_pgno_read __P((DB_ENV *, void *, __bam_pgno_args **));
 */
int
__bam_pgno_read(dbenv, recbuf, argpp)
      DB_ENV *dbenv;
      void *recbuf;
      __bam_pgno_args **argpp;
{
      __bam_pgno_args *argp;
      u_int32_t uinttmp;
      u_int8_t *bp;
      int ret;

      if ((ret = __os_malloc(dbenv,
          sizeof(__bam_pgno_args) + sizeof(DB_TXN), &argp)) != 0)
            return (ret);
      bp = recbuf;
      argp->txnp = (DB_TXN *)&argp[1];
      memset(argp->txnp, 0, sizeof(DB_TXN));

      memcpy(&argp->type, bp, sizeof(argp->type));
      bp += sizeof(argp->type);

      memcpy(&argp->txnp->txnid, bp, sizeof(argp->txnp->txnid));
      bp += sizeof(argp->txnp->txnid);

      memcpy(&argp->prev_lsn, bp, sizeof(DB_LSN));
      bp += sizeof(DB_LSN);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->fileid = (int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->pgno = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&argp->lsn, bp,  sizeof(argp->lsn));
      bp += sizeof(argp->lsn);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->indx = (u_int32_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->opgno = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      memcpy(&uinttmp, bp, sizeof(uinttmp));
      argp->npgno = (db_pgno_t)uinttmp;
      bp += sizeof(uinttmp);

      *argpp = argp;
      return (0);
}

/*
 * PUBLIC: int __bam_init_recover __P((DB_ENV *, int (***)(DB_ENV *,
 * PUBLIC:     DBT *, DB_LSN *, db_recops, void *), size_t *));
 */
int
__bam_init_recover(dbenv, dtabp, dtabsizep)
      DB_ENV *dbenv;
      int (***dtabp)__P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
      size_t *dtabsizep;
{
      int ret;

      if ((ret = __db_add_recovery(dbenv, dtabp, dtabsizep,
          __bam_split_recover, DB___bam_split)) != 0)
            return (ret);
      if ((ret = __db_add_recovery(dbenv, dtabp, dtabsizep,
          __bam_rsplit_recover, DB___bam_rsplit)) != 0)
            return (ret);
      if ((ret = __db_add_recovery(dbenv, dtabp, dtabsizep,
          __bam_adj_recover, DB___bam_adj)) != 0)
            return (ret);
      if ((ret = __db_add_recovery(dbenv, dtabp, dtabsizep,
          __bam_cadjust_recover, DB___bam_cadjust)) != 0)
            return (ret);
      if ((ret = __db_add_recovery(dbenv, dtabp, dtabsizep,
          __bam_cdel_recover, DB___bam_cdel)) != 0)
            return (ret);
      if ((ret = __db_add_recovery(dbenv, dtabp, dtabsizep,
          __bam_repl_recover, DB___bam_repl)) != 0)
            return (ret);
      if ((ret = __db_add_recovery(dbenv, dtabp, dtabsizep,
          __bam_root_recover, DB___bam_root)) != 0)
            return (ret);
      if ((ret = __db_add_recovery(dbenv, dtabp, dtabsizep,
          __bam_curadj_recover, DB___bam_curadj)) != 0)
            return (ret);
      if ((ret = __db_add_recovery(dbenv, dtabp, dtabsizep,
          __bam_rcuradj_recover, DB___bam_rcuradj)) != 0)
            return (ret);
      if ((ret = __db_add_recovery(dbenv, dtabp, dtabsizep,
          __bam_relink_recover, DB___bam_relink)) != 0)
            return (ret);
      if ((ret = __db_add_recovery(dbenv, dtabp, dtabsizep,
          __bam_merge_recover, DB___bam_merge)) != 0)
            return (ret);
      if ((ret = __db_add_recovery(dbenv, dtabp, dtabsizep,
          __bam_pgno_recover, DB___bam_pgno)) != 0)
            return (ret);
      return (0);
}

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