/*
* __wt_txn_log_commit --
* Write the operations of a transaction to the log at commit time.
*/
int
__wt_txn_log_commit(WT_SESSION_IMPL *session, const char *cfg[])
{
WT_DECL_RET;
WT_DECL_ITEM(logrec);
WT_TXN *txn;
WT_TXN_OP *op;
const char *fmt = WT_UNCHECKED_STRING(Iq);
size_t header_size;
uint32_t rectype = WT_LOGREC_COMMIT;
u_int i;
WT_UNUSED(cfg);
txn = &session->txn;
WT_RET(__wt_struct_size(session, &header_size, fmt, rectype, txn->id));
WT_RET(__wt_logrec_alloc(session, header_size, &logrec));
WT_ERR(__wt_struct_pack(session,
(uint8_t *)logrec->data + logrec->size, header_size,
fmt, rectype, txn->id));
logrec->size += (uint32_t)header_size;
/* Write updates to the log. */
for (i = 0, op = txn->mod; i < txn->mod_count; i++, op++)
switch (op->type) {
case TXN_OP_BASIC:
WT_ERR(__txn_op_log(session, logrec, op));
break;
case TXN_OP_INMEM:
case TXN_OP_REF:
/* Nothing to log, we're done. */
break;
case TXN_OP_TRUNCATE_COL:
WT_ERR(__wt_logop_col_truncate_pack(session, logrec,
op->fileid,
op->u.truncate_col.start, op->u.truncate_col.stop));
break;
case TXN_OP_TRUNCATE_ROW:
WT_ERR(__wt_logop_row_truncate_pack(session, logrec,
op->fileid,
&op->u.truncate_row.start, &op->u.truncate_row.stop,
(uint32_t)op->u.truncate_row.mode));
break;
}
WT_ERR(__wt_log_write(session,
logrec, NULL, S2C(session)->txn_logsync));
err: __wt_logrec_free(session, &logrec);
return (ret);
}
/*
* __wt_txn_log_op --
* Write the last logged operation into the in-memory buffer.
*/
int
__wt_txn_log_op(WT_SESSION_IMPL *session, WT_CURSOR_BTREE *cbt)
{
WT_DECL_RET;
WT_ITEM *logrec;
WT_TXN *txn;
WT_TXN_OP *op;
txn = &session->txn;
if (!FLD_ISSET(S2C(session)->log_flags, WT_CONN_LOG_ENABLED) ||
F_ISSET(session, WT_SESSION_NO_LOGGING) ||
F_ISSET(S2BT(session), WT_BTREE_NO_LOGGING))
return (0);
/* We'd better have a transaction. */
WT_ASSERT(session,
F_ISSET(txn, WT_TXN_RUNNING) && F_ISSET(txn, WT_TXN_HAS_ID));
WT_ASSERT(session, txn->mod_count > 0);
op = txn->mod + txn->mod_count - 1;
WT_RET(__txn_logrec_init(session));
logrec = txn->logrec;
switch (op->type) {
case WT_TXN_OP_BASIC:
case WT_TXN_OP_BASIC_TS:
ret = __txn_op_log(session, logrec, op, cbt);
break;
case WT_TXN_OP_INMEM:
case WT_TXN_OP_REF:
/* Nothing to log, we're done. */
break;
case WT_TXN_OP_TRUNCATE_COL:
ret = __wt_logop_col_truncate_pack(session, logrec,
op->fileid,
op->u.truncate_col.start, op->u.truncate_col.stop);
break;
case WT_TXN_OP_TRUNCATE_ROW:
ret = __wt_logop_row_truncate_pack(session, txn->logrec,
op->fileid,
&op->u.truncate_row.start, &op->u.truncate_row.stop,
(uint32_t)op->u.truncate_row.mode);
break;
}
return (ret);
}