mirror of
https://github.com/MariaDB/server.git
synced 2025-10-31 10:56:12 +01:00
56948ee54c
clang15 finally errors on old prototype definations. Its also a lot fussier about variables that aren't used as is the case a number of time with loop counters that aren't examined. RocksDB was complaining that its get_range function was declared without the array length in ha_rocksdb.h. While a constant is used rather than trying to import the Rdb_key_def::INDEX_NUMBER_SIZE header (was causing a lot of errors on the defination of other orders). If the constant does change can be assured that the same compile warnings will tell us of the error. The ha_rocksdb::index_read_map_impl DBUG_EXECUTE_IF was similar to the existing endless functions used in replication tests. Its rather moot point as the rocksdb.force_shutdown test that uses myrocks_busy_loop_on_row_read is currently disabled.
874 lines
28 KiB
C++
874 lines
28 KiB
C++
/************* TabTbl C++ Program Source Code File (.CPP) **************/
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/* PROGRAM NAME: TABTBL */
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/* ------------- */
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/* Version 1.9 */
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/* */
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/* Author: Olivier BERTRAND 2008-2018 */
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/* */
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/* WHAT THIS PROGRAM DOES: */
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/* ----------------------- */
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/* This program are the TDBTBL class DB routines. */
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/* */
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/* WHAT YOU NEED TO COMPILE THIS PROGRAM: */
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/* -------------------------------------- */
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/* */
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/* REQUIRED FILES: */
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/* --------------- */
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/* TABTBL.CPP - Source code */
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/* PLGDBSEM.H - DB application declaration file */
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/* TABDOS.H - TABDOS classes declaration file */
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/* TABTBL.H - TABTBL classes declaration file */
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/* GLOBAL.H - Global declaration file */
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/* */
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/* REQUIRED LIBRARIES: */
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/* ------------------- */
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/* Large model C library */
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/* */
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/* REQUIRED PROGRAMS: */
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/* ------------------ */
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/* IBM, Borland, GNU or Microsoft C++ Compiler and Linker */
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/* */
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/***********************************************************************/
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/***********************************************************************/
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/* Include relevant section of system dependant header files. */
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/***********************************************************************/
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//#include "sql_base.h"
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#include "my_global.h"
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#include "table.h" // MySQL table definitions
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#if defined(_WIN32)
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#include <stdlib.h>
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#include <stdio.h>
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#if defined(__BORLANDC__)
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#define __MFC_COMPAT__ // To define min/max as macro
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#endif
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//#include <windows.h>
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#else
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#if defined(UNIX)
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#include <fnmatch.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "osutil.h"
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#else
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//#include <io.h>
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#endif
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//#include <fcntl.h>
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#endif
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/***********************************************************************/
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/* Include application header files: */
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/***********************************************************************/
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#include "global.h" // global declarations
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#include "plgdbsem.h" // DB application declarations
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#include "reldef.h" // DB definition declares
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#include "filamtxt.h"
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#include "tabcol.h"
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#include "tabdos.h" // TDBDOS and DOSCOL class dcls
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#include "tabtbl.h"
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#include "tabext.h"
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#include "tabmysql.h"
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#include "ha_connect.h"
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#if defined(_WIN32)
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#if defined(__BORLANDC__)
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#define SYSEXIT void _USERENTRY
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#else
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#define SYSEXIT void
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#endif
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#else // !_WIN32
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#define SYSEXIT void *
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#endif // !_WIN32
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extern pthread_mutex_t tblmut;
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/* ---------------------------- Class TBLDEF ---------------------------- */
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/**************************************************************************/
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/* Constructor. */
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/**************************************************************************/
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TBLDEF::TBLDEF(void)
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{
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//To_Tables = NULL;
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Accept = false;
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Thread = false;
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Maxerr = 0;
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Ntables = 0;
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Pseudo = 3;
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} // end of TBLDEF constructor
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/**************************************************************************/
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/* DefineAM: define specific AM block values from XDB file. */
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/**************************************************************************/
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bool TBLDEF::DefineAM(PGLOBAL g, LPCSTR, int)
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{
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char *tablist, *dbname, *def = NULL;
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Desc = "Table list table";
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tablist = GetStringCatInfo(g, "Tablist", "");
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dbname = GetStringCatInfo(g, "Dbname", "*");
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def = GetStringCatInfo(g, "Srcdef", NULL);
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Ntables = 0;
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if (*tablist) {
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char *p, *pn, *pdb;
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PTABLE tbl;
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for (pdb = tablist; ;) {
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if ((p = strchr(pdb, ',')))
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*p = 0;
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// Analyze the table name, it may have the format:
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// [dbname.]tabname
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if ((pn = strchr(pdb, '.'))) {
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*pn++ = 0;
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} else {
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pn = pdb;
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pdb = dbname;
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} // endif p
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// Allocate the TBLIST block for that table
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tbl = new(g) XTAB(pn, def);
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tbl->SetSchema(pdb);
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if (trace(1))
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htrc("TBL: Name=%s db=%s\n", tbl->GetName(), tbl->GetSchema());
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// Link the blocks
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if (Tablep)
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Tablep->Link(tbl);
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else
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Tablep = tbl;
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Ntables++;
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if (p)
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pdb = pn + strlen(pn) + 1;
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else
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break;
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} // endfor pdb
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Maxerr = GetIntCatInfo("Maxerr", 0);
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Accept = GetBoolCatInfo("Accept", false);
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Thread = GetBoolCatInfo("Thread", false);
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} // endif tablist
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return FALSE;
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} // end of DefineAM
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/***********************************************************************/
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/* GetTable: makes a new Table Description Block. */
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/***********************************************************************/
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PTDB TBLDEF::GetTable(PGLOBAL g, MODE)
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{
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if (Catfunc == FNC_COL)
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return new(g) TDBTBC(this);
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else if (Thread) {
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#if defined(DEVELOPMENT)
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return new(g) TDBTBM(this);
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#else
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strcpy(g->Message, "Option THREAD is no more supported");
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return NULL;
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#endif // DEVELOPMENT
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} else
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return new(g) TDBTBL(this);
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} // end of GetTable
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/* ------------------------- Class TDBTBL ---------------------------- */
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/***********************************************************************/
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/* TDBTBL constructors. */
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/***********************************************************************/
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TDBTBL::TDBTBL(PTBLDEF tdp) : TDBPRX(tdp)
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{
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Tablist = NULL;
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CurTable = NULL;
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//Tdbp = NULL;
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Accept = tdp->Accept;
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Maxerr = tdp->Maxerr;
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Nbc = 0;
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Rows = 0;
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Crp = 0;
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// NTables = 0;
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// iTable = 0;
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} // end of TDBTBL standard constructor
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/***********************************************************************/
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/* Allocate TBL column description block. */
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/***********************************************************************/
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PCOL TDBTBL::MakeCol(PGLOBAL g, PCOLDEF cdp, PCOL cprec, int n)
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{
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return new(g) PRXCOL(cdp, this, cprec, n);
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} // end of MakeCol
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/***********************************************************************/
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/* InsertSpecialColumn: Put a special column ahead of the column list.*/
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/***********************************************************************/
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PCOL TDBTBL::InsertSpecialColumn(PCOL scp)
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{
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PCOL colp;
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if (!scp->IsSpecial())
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return NULL;
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if (scp->GetAmType() == TYPE_AM_TABID)
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// This special column is handled locally
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colp = new((TIDBLK*)scp) TBTBLK(scp->GetValue());
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else // Other special columns are treated normally
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colp = scp;
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colp->SetNext(Columns);
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Columns = colp;
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return colp;
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} // end of InsertSpecialColumn
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/***********************************************************************/
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/* Initializes the table table list. */
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/***********************************************************************/
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bool TDBTBL::InitTableList(PGLOBAL g)
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{
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uint sln;
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const char *scs;
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PTABLE tp, tabp;
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PCOL colp;
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PTBLDEF tdp = (PTBLDEF)To_Def;
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PCATLG cat = To_Def->GetCat();
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PHC hc = ((MYCAT*)cat)->GetHandler();
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scs = hc->get_table()->s->connect_string.str;
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sln = hc->get_table()->s->connect_string.length;
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// PlugSetPath(filename, Tdbp->GetFile(g), Tdbp->GetPath());
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for (tp = tdp->Tablep; tp; tp = tp->GetNext()) {
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if (TestFil(g, To_CondFil, tp)) {
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tabp = new(g) XTAB(tp);
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if (tabp->GetSrc()) {
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// Table list is a list of connections
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hc->get_table()->s->connect_string.str = (char*)tabp->GetName();
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hc->get_table()->s->connect_string.length = strlen(tabp->GetName());
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} // endif Src
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// Get the table description block of this table
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if (!(Tdbp = GetSubTable(g, tabp))) {
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if (++Nbc > Maxerr)
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return TRUE; // Error return
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else
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continue; // Skip this table
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} else
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RemoveNext(tabp); // To avoid looping
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// We must allocate subtable columns before GetMaxSize is called
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// because some (PLG, ODBC?) need to have their columns attached.
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// Real initialization will be done later.
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for (colp = Columns; colp; colp = colp->GetNext())
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if (!colp->IsSpecial())
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if (((PPRXCOL)colp)->Init(g, NULL) && !Accept)
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return TRUE;
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if (Tablist)
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Tablist->Link(tabp);
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else
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Tablist = tabp;
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} // endif filp
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} // endfor tp
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hc->get_table()->s->connect_string.str = (char*)scs;
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hc->get_table()->s->connect_string.length = sln;
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//NumTables = n;
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To_CondFil = NULL; // To avoid doing it several times
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return FALSE;
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} // end of InitTableList
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/***********************************************************************/
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/* Test the tablename against the pseudo "local" filter. */
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/***********************************************************************/
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bool TDBTBL::TestFil(PGLOBAL g, PCFIL filp, PTABLE tabp)
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{
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char *body, *fil, op[8], tn[NAME_LEN];
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bool neg;
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if (!filp)
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return TRUE;
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else
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body = filp->Body;
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if (strstr(body, " OR ") || strstr(body, " AND "))
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return TRUE; // Not handled yet
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else
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fil = body + (*body == '(' ? 1 : 0);
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if (sscanf(fil, "TABID %s", op) != 1)
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return TRUE; // ignore invalid filter
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if ((neg = !strcmp(op, "NOT")))
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strcpy(op, "IN");
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if (!strcmp(op, "=")) {
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// Temporarily, filter must be "TABID = 'value'" only
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if (sscanf(fil, "TABID = '%[^']'", tn) != 1)
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return TRUE; // ignore invalid filter
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return !stricmp(tn, tabp->GetName());
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} else if (!strcmp(op, "IN")) {
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char *p, *tnl = (char*)PlugSubAlloc(g, NULL, strlen(fil) - 10);
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int n;
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if (neg)
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n = sscanf(fil, "TABID NOT IN (%[^)])", tnl);
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else
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n = sscanf(fil, "TABID IN (%[^)])", tnl);
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if (n != 1)
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return TRUE; // ignore invalid filter
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while (tnl) {
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if ((p = strchr(tnl, ',')))
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*p++ = 0;
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if (sscanf(tnl, "'%[^']'", tn) != 1)
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return TRUE; // ignore invalid filter
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else if (!stricmp(tn, tabp->GetName()))
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return !neg; // Found
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tnl = p;
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} // endwhile
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return neg; // Not found
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} // endif op
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return TRUE; // invalid operator
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} // end of TestFil
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/***********************************************************************/
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/* Sum up the cardinality of all sub-tables. */
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/***********************************************************************/
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int TDBTBL::Cardinality(PGLOBAL g)
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{
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if (!g)
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return 0; // Cannot make the table list
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else if (Cardinal < 0) {
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int tsz;
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if (!Tablist && InitTableList(g))
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return 0; // Cannot be calculated at this stage
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Cardinal = 0;
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for (PTABLE tabp = Tablist; tabp; tabp = tabp->GetNext()) {
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if ((tsz = tabp->GetTo_Tdb()->Cardinality(g)) < 0) {
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Cardinal = -1;
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return tsz;
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} // endif mxsz
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Cardinal += tsz;
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} // endfor i
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} // endif Cardinal
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return Cardinal;
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} // end of Cardinality
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/***********************************************************************/
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/* Sum up the maximum sizes of all sub-tables. */
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/***********************************************************************/
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int TDBTBL::GetMaxSize(PGLOBAL g)
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{
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if (MaxSize < 0) {
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int mxsz;
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if (!Tablist && InitTableList(g))
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return 0; // Cannot be calculated at this stage
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MaxSize = 0;
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for (PTABLE tabp = Tablist; tabp; tabp = tabp->GetNext()) {
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if ((mxsz = tabp->GetTo_Tdb()->GetMaxSize(g)) < 0) {
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MaxSize = -1;
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return mxsz;
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} // endif mxsz
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MaxSize += mxsz;
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} // endfor i
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} // endif MaxSize
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return MaxSize;
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} // end of GetMaxSize
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/***********************************************************************/
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/* Reset read/write position values. */
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/***********************************************************************/
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void TDBTBL::ResetDB(void)
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{
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for (PCOL colp = Columns; colp; colp = colp->GetNext())
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if (colp->GetAmType() == TYPE_AM_TABID ||
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colp->GetAmType() == TYPE_AM_SRVID)
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colp->COLBLK::Reset();
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for (PTABLE tabp = Tablist; tabp; tabp = tabp->GetNext())
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tabp->GetTo_Tdb()->ResetDB();
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Tdbp = Tablist->GetTo_Tdb();
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Crp = 0;
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} // end of ResetDB
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/***********************************************************************/
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/* Returns RowId if b is false or Rownum if b is true. */
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/***********************************************************************/
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int TDBTBL::RowNumber(PGLOBAL g, bool b)
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{
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return Tdbp->RowNumber(g) + ((b) ? 0 : Rows);
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} // end of RowNumber
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/***********************************************************************/
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/* TBL Access Method opening routine. */
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/* Open first file, other will be opened sequencially when reading. */
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/***********************************************************************/
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bool TDBTBL::OpenDB(PGLOBAL g)
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{
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if (trace(1))
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htrc("TBL OpenDB: tdbp=%p tdb=R%d use=%d key=%p mode=%d\n",
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this, Tdb_No, Use, To_Key_Col, Mode);
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if (Use == USE_OPEN) {
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/*******************************************************************/
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/* Table already open, replace it at its beginning. */
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/*******************************************************************/
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ResetDB();
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return Tdbp->OpenDB(g); // Re-open fist table
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} // endif use
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/*********************************************************************/
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/* When GetMaxsize was called, To_CondFil was not set yet. */
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/*********************************************************************/
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if (To_CondFil && Tablist) {
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Tablist = NULL;
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Nbc = 0;
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} // endif To_CondFil
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/*********************************************************************/
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/* Open the first table of the list. */
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/*********************************************************************/
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if (!Tablist && InitTableList(g)) // done in GetMaxSize
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return TRUE;
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if ((CurTable = Tablist)) {
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Tdbp = CurTable->GetTo_Tdb();
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// Tdbp->SetMode(Mode);
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// Tdbp->ResetDB();
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// Tdbp->ResetSize();
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// Check and initialize the subtable columns
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for (PCOL cp = Columns; cp; cp = cp->GetNext())
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if (cp->GetAmType() == TYPE_AM_TABID)
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cp->COLBLK::Reset();
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else if (((PPRXCOL)cp)->Init(g, NULL) && !Accept)
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return TRUE;
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if (trace(1))
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htrc("Opening subtable %s\n", Tdbp->GetName());
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// Now we can safely open the table
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if (Tdbp->OpenDB(g))
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return TRUE;
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} // endif *Tablist
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Use = USE_OPEN;
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return FALSE;
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} // end of OpenDB
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/***********************************************************************/
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/* ReadDB: Data Base read routine for MUL access method. */
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/***********************************************************************/
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int TDBTBL::ReadDB(PGLOBAL g)
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{
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int rc;
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if (!CurTable)
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return RC_EF;
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else if (To_Kindex) {
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/*******************************************************************/
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/* Reading is by an index table. */
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/*******************************************************************/
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strcpy(g->Message, MSG(NO_INDEX_READ));
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rc = RC_FX;
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} else {
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/*******************************************************************/
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/* Now start the reading process. */
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/*******************************************************************/
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retry:
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rc = Tdbp->ReadDB(g);
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if (rc == RC_EF) {
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// Total number of rows met so far
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Rows += Tdbp->RowNumber(g) - 1;
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Crp += Tdbp->GetProgMax(g);
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if ((CurTable = CurTable->GetNext())) {
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/***************************************************************/
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/* Continue reading from next table file. */
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/***************************************************************/
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Tdbp->CloseDB(g);
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Tdbp = CurTable->GetTo_Tdb();
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// Check and initialize the subtable columns
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for (PCOL cp = Columns; cp; cp = cp->GetNext())
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if (cp->GetAmType() == TYPE_AM_TABID ||
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cp->GetAmType() == TYPE_AM_SRVID)
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cp->COLBLK::Reset();
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else if (((PPRXCOL)cp)->Init(g, NULL) && !Accept)
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return RC_FX;
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if (trace(1))
|
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htrc("Opening subtable %s\n", Tdbp->GetName());
|
|
|
|
// Now we can safely open the table
|
|
if (Tdbp->OpenDB(g)) // Open next table
|
|
return RC_FX;
|
|
|
|
goto retry;
|
|
} // endif iFile
|
|
|
|
} else if (rc == RC_FX)
|
|
strcat(strcat(strcat(g->Message, " ("), Tdbp->GetName()), ")");
|
|
|
|
} // endif To_Kindex
|
|
|
|
return rc;
|
|
} // end of ReadDB
|
|
|
|
/* ---------------------------- TBTBLK ------------------------------- */
|
|
|
|
/***********************************************************************/
|
|
/* ReadColumn: */
|
|
/***********************************************************************/
|
|
void TBTBLK::ReadColumn(PGLOBAL)
|
|
{
|
|
if (trace(1))
|
|
htrc("TBT ReadColumn: name=%s\n", Name);
|
|
|
|
Value->SetValue_psz((char*)((PTDBTBL)To_Tdb)->Tdbp->GetName());
|
|
|
|
} // end of ReadColumn
|
|
|
|
#if defined(DEVELOPMENT)
|
|
/* ------------------------- Class TDBTBM ---------------------------- */
|
|
|
|
/***********************************************************************/
|
|
/* Thread routine that check and open one remote connection. */
|
|
/***********************************************************************/
|
|
pthread_handler_t ThreadOpen(void *p)
|
|
{
|
|
PTBMT cmp = (PTBMT)p;
|
|
|
|
if (!my_thread_init()) {
|
|
set_current_thd(cmp->Thd);
|
|
|
|
if (trace(1))
|
|
htrc("ThreadOpen: Thd=%d\n", cmp->Thd);
|
|
|
|
// Try to open the connection
|
|
pthread_mutex_lock(&tblmut);
|
|
|
|
if (!cmp->Tap->GetTo_Tdb()->OpenDB(cmp->G)) {
|
|
// pthread_mutex_lock(&tblmut);
|
|
if (trace(1))
|
|
htrc("Table %s ready\n", cmp->Tap->GetName());
|
|
|
|
cmp->Ready = true;
|
|
// pthread_mutex_unlock(&tblmut);
|
|
} else {
|
|
// pthread_mutex_lock(&tblmut);
|
|
if (trace(1))
|
|
htrc("Opening %s failed\n", cmp->Tap->GetName());
|
|
|
|
cmp->Rc = RC_FX;
|
|
// pthread_mutex_unlock(&tblmut);
|
|
} // endif OpenDB
|
|
|
|
pthread_mutex_unlock(&tblmut);
|
|
my_thread_end();
|
|
} else
|
|
cmp->Rc = RC_FX;
|
|
|
|
return NULL;
|
|
} // end of ThreadOpen
|
|
|
|
/***********************************************************************/
|
|
/* TDBTBM constructors. */
|
|
/***********************************************************************/
|
|
TDBTBM::TDBTBM(PTBLDEF tdp) : TDBTBL(tdp)
|
|
{
|
|
Tmp = NULL; // To data table TBMT structures
|
|
Cmp = NULL; // Current data table TBMT
|
|
Bmp = NULL; // To bad (unconnected) TBMT structures
|
|
Done = false; // TRUE after first GetAllResults
|
|
Nrc = 0; // Number of remote connections
|
|
Nlc = 0; // Number of local connections
|
|
} // end of TDBTBL standard constructor
|
|
|
|
/***********************************************************************/
|
|
/* Reset read/write position values. */
|
|
/***********************************************************************/
|
|
void TDBTBM::ResetDB(void)
|
|
{
|
|
for (PCOL colp = Columns; colp; colp = colp->GetNext())
|
|
if (colp->GetAmType() == TYPE_AM_TABID)
|
|
colp->COLBLK::Reset();
|
|
|
|
// Local tables
|
|
for (PTABLE tabp = Tablist; tabp; tabp = tabp->GetNext())
|
|
tabp->GetTo_Tdb()->ResetDB();
|
|
|
|
// Remote tables
|
|
for (PTBMT tp = Tmp; tp; tp = tp->Next)
|
|
tp->Tap->GetTo_Tdb()->ResetDB();
|
|
|
|
Tdbp = (Tablist) ? Tablist->GetTo_Tdb() : NULL;
|
|
Crp = 0;
|
|
} // end of ResetDB
|
|
|
|
/***********************************************************************/
|
|
/* Returns RowId if b is false or Rownum if b is true. */
|
|
/***********************************************************************/
|
|
int TDBTBM::RowNumber(PGLOBAL g, bool b)
|
|
{
|
|
return Tdbp->RowNumber(g) + ((b) ? 0 : Rows);
|
|
} // end of RowNumber
|
|
|
|
/***********************************************************************/
|
|
/* Returns true if this MYSQL table refers to a local table. */
|
|
/***********************************************************************/
|
|
bool TDBTBM::IsLocal(PTABLE tbp)
|
|
{
|
|
TDBMYSQL *tdbp = (TDBMYSQL*)tbp->GetTo_Tdb();
|
|
|
|
return ((!stricmp(tdbp->Host, "localhost") ||
|
|
!strcmp(tdbp->Host, "127.0.0.1")) &&
|
|
(int) tdbp->Port == (int)GetDefaultPort());
|
|
} // end of IsLocal
|
|
|
|
/***********************************************************************/
|
|
/* Initialyze table parallel processing. */
|
|
/***********************************************************************/
|
|
bool TDBTBM::OpenTables(PGLOBAL g)
|
|
{
|
|
int k;
|
|
THD *thd = current_thd;
|
|
PTABLE tabp, *ptabp = &Tablist;
|
|
PTBMT tp, *ptp = &Tmp;
|
|
|
|
// Allocates the TBMT blocks for the tables
|
|
for (tabp = Tablist; tabp; tabp = tabp->Next)
|
|
if (tabp->GetTo_Tdb()->GetAmType() == TYPE_AM_MYSQL && !IsLocal(tabp)) {
|
|
// Remove remote table from the local list
|
|
*ptabp = tabp->Next;
|
|
|
|
if (trace(1))
|
|
htrc("=====> New remote table %s\n", tabp->GetName());
|
|
|
|
// Make the remote table block
|
|
tp = (PTBMT)PlugSubAlloc(g, NULL, sizeof(TBMT));
|
|
memset(tp, 0, sizeof(TBMT));
|
|
tp->G = g;
|
|
tp->Ready = false;
|
|
tp->Tap = tabp;
|
|
tp->Thd = thd;
|
|
|
|
// Create the thread that will do the table opening.
|
|
pthread_attr_init(&tp->attr);
|
|
// pthread_attr_setdetachstate(&tp->attr, PTHREAD_CREATE_JOINABLE);
|
|
|
|
if ((k = pthread_create(&tp->Tid, &tp->attr, ThreadOpen, tp))) {
|
|
snprintf(g->Message, sizeof(g->Message), "pthread_create error %d", k);
|
|
Nbc++;
|
|
continue;
|
|
} // endif k
|
|
|
|
// Add it to the remote list
|
|
*ptp = tp;
|
|
ptp = &tp->Next;
|
|
Nrc++; // Number of remote connections
|
|
} else {
|
|
if (trace(1))
|
|
htrc("=====> Local table %s\n", tabp->GetName());
|
|
|
|
ptabp = &tabp->Next;
|
|
Nlc++; // Number of local connections
|
|
} // endif Type
|
|
|
|
return false;
|
|
} // end of OpenTables
|
|
|
|
/***********************************************************************/
|
|
/* TBL Access Method opening routine. */
|
|
/* Open first file, other will be opened sequencially when reading. */
|
|
/***********************************************************************/
|
|
bool TDBTBM::OpenDB(PGLOBAL g)
|
|
{
|
|
if (trace(1))
|
|
htrc("TBM OpenDB: tdbp=%p tdb=R%d use=%d key=%p mode=%d\n",
|
|
this, Tdb_No, Use, To_Key_Col, Mode);
|
|
|
|
if (Use == USE_OPEN) {
|
|
/*******************************************************************/
|
|
/* Table already open, replace it at its beginning. */
|
|
/*******************************************************************/
|
|
ResetDB();
|
|
return (Tdbp) ? Tdbp->OpenDB(g) : false; // Re-open fist table
|
|
} // endif use
|
|
|
|
#if 0
|
|
/*********************************************************************/
|
|
/* When GetMaxsize was called, To_CondFil was not set yet. */
|
|
/*********************************************************************/
|
|
if (To_CondFil && Tablist) {
|
|
Tablist = NULL;
|
|
Nbc = 0;
|
|
} // endif To_CondFil
|
|
#endif // 0
|
|
|
|
/*********************************************************************/
|
|
/* Make the table list. */
|
|
/*********************************************************************/
|
|
if (/*!Tablist &&*/ InitTableList(g))
|
|
return TRUE;
|
|
|
|
/*********************************************************************/
|
|
/* Open all remote tables of the list. */
|
|
/*********************************************************************/
|
|
if (OpenTables(g))
|
|
return TRUE;
|
|
|
|
/*********************************************************************/
|
|
/* Proceed with local tables. */
|
|
/*********************************************************************/
|
|
if ((CurTable = Tablist)) {
|
|
Tdbp = CurTable->GetTo_Tdb();
|
|
// Tdbp->SetMode(Mode);
|
|
|
|
// Check and initialize the subtable columns
|
|
for (PCOL cp = Columns; cp; cp = cp->GetNext())
|
|
if (cp->GetAmType() == TYPE_AM_TABID)
|
|
cp->COLBLK::Reset();
|
|
else if (((PPRXCOL)cp)->Init(g, NULL) && !Accept)
|
|
return TRUE;
|
|
|
|
if (trace(1))
|
|
htrc("Opening subtable %s\n", Tdbp->GetName());
|
|
|
|
// Now we can safely open the table
|
|
if (Tdbp->OpenDB(g))
|
|
return TRUE;
|
|
|
|
} // endif *Tablist
|
|
|
|
Use = USE_OPEN;
|
|
return FALSE;
|
|
} // end of OpenDB
|
|
|
|
/***********************************************************************/
|
|
/* ReadDB: Data Base read routine for MUL access method. */
|
|
/***********************************************************************/
|
|
int TDBTBM::ReadDB(PGLOBAL g)
|
|
{
|
|
int rc;
|
|
|
|
if (!Done) {
|
|
// Get result from local tables
|
|
if ((rc = TDBTBL::ReadDB(g)) != RC_EF)
|
|
return rc;
|
|
else if ((rc = ReadNextRemote(g)) != RC_OK)
|
|
return rc;
|
|
|
|
Done = true;
|
|
} // endif Done
|
|
|
|
/*********************************************************************/
|
|
/* Now start the reading process of remote tables. */
|
|
/*********************************************************************/
|
|
retry:
|
|
rc = Tdbp->ReadDB(g);
|
|
|
|
if (rc == RC_EF) {
|
|
// Total number of rows met so far
|
|
Rows += Tdbp->RowNumber(g) - 1;
|
|
Crp += Tdbp->GetProgMax(g);
|
|
Cmp->Complete = true;
|
|
|
|
if ((rc = ReadNextRemote(g)) == RC_OK)
|
|
goto retry;
|
|
|
|
} else if (rc == RC_FX)
|
|
strcat(strcat(strcat(g->Message, " ("), Tdbp->GetName()), ")");
|
|
|
|
return rc;
|
|
} // end of ReadDB
|
|
|
|
/***********************************************************************/
|
|
/* ReadNext: Continue reading from next table. */
|
|
/***********************************************************************/
|
|
int TDBTBM::ReadNextRemote(PGLOBAL g)
|
|
{
|
|
bool b;
|
|
|
|
if (Tdbp)
|
|
Tdbp->CloseDB(g);
|
|
|
|
Cmp = NULL;
|
|
|
|
retry:
|
|
b = false;
|
|
|
|
// Search for a remote table having its result set
|
|
pthread_mutex_lock(&tblmut);
|
|
for (PTBMT tp = Tmp; tp; tp = tp->Next)
|
|
if (tp->Rc != RC_FX) {
|
|
if (tp->Ready) {
|
|
if (!tp->Complete) {
|
|
Cmp = tp;
|
|
break;
|
|
} // endif Complete
|
|
|
|
} else
|
|
b = true;
|
|
|
|
} // endif Rc
|
|
|
|
pthread_mutex_unlock(&tblmut);
|
|
|
|
if (!Cmp) {
|
|
if (b) { // more result to come
|
|
// sleep(20);
|
|
goto retry;
|
|
} else
|
|
return RC_EF;
|
|
|
|
} // endif Curtable
|
|
|
|
Tdbp = Cmp->Tap->GetTo_Tdb();
|
|
|
|
// Check and initialize the subtable columns
|
|
for (PCOL cp = Columns; cp; cp = cp->GetNext())
|
|
if (cp->GetAmType() == TYPE_AM_TABID)
|
|
cp->COLBLK::Reset();
|
|
else if (((PPRXCOL)cp)->Init(g, NULL) && !Accept)
|
|
return RC_FX;
|
|
|
|
if (trace(1))
|
|
htrc("Reading subtable %s\n", Tdbp->GetName());
|
|
|
|
return RC_OK;
|
|
} // end of ReadNextRemote
|
|
#endif // DEVELOPMENT
|
|
|
|
/* ------------------------------------------------------------------- */
|