- Move the old sqlite extension to PECL

# discussed in http://www.mail-archive.com/internals@lists.php.net/msg47463.html

1 files changed, 0 insertions, 459 deletions

diff --git a/ext/sqlite/libsqlite/src/update.c b/ext/sqlite/libsqlite/src/update.c
deleted file mode 100644
index f20cc9b531..0000000000
--- a/ext/sqlite/libsqlite/src/update.c
+++ /dev/null
@@ -1,459 +0,0 @@
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains C code routines that are called by the parser
-** to handle UPDATE statements.
-**
-** $Id$
-*/
-#include "sqliteInt.h"
-
-/*
-** Process an UPDATE statement.
-**
-**   UPDATE OR IGNORE table_wxyz SET a=b, c=d WHERE e<5 AND f NOT NULL;
-**          \_______/ \________/     \______/       \________________/
-*            onError   pTabList      pChanges             pWhere
-*/
-void sqliteUpdate(
-  Parse *pParse,         /* The parser context */
-  SrcList *pTabList,     /* The table in which we should change things */
-  ExprList *pChanges,    /* Things to be changed */
-  Expr *pWhere,          /* The WHERE clause.  May be null */
-  int onError            /* How to handle constraint errors */
-){
-  int i, j;              /* Loop counters */
-  Table *pTab;           /* The table to be updated */
-  int loopStart;         /* VDBE instruction address of the start of the loop */
-  int jumpInst;          /* Addr of VDBE instruction to jump out of loop */
-  WhereInfo *pWInfo;     /* Information about the WHERE clause */
-  Vdbe *v;               /* The virtual database engine */
-  Index *pIdx;           /* For looping over indices */
-  int nIdx;              /* Number of indices that need updating */
-  int nIdxTotal;         /* Total number of indices */
-  int iCur;              /* VDBE Cursor number of pTab */
-  sqlite *db;            /* The database structure */
-  Index **apIdx = 0;     /* An array of indices that need updating too */
-  char *aIdxUsed = 0;    /* aIdxUsed[i]==1 if the i-th index is used */
-  int *aXRef = 0;        /* aXRef[i] is the index in pChanges->a[] of the
-                         ** an expression for the i-th column of the table.
-                         ** aXRef[i]==-1 if the i-th column is not changed. */
-  int chngRecno;         /* True if the record number is being changed */
-  Expr *pRecnoExpr;      /* Expression defining the new record number */
-  int openAll;           /* True if all indices need to be opened */
-  int isView;            /* Trying to update a view */
-  int iStackDepth;       /* Index of memory cell holding stack depth */
-  AuthContext sContext;  /* The authorization context */
-
-  int before_triggers;         /* True if there are any BEFORE triggers */
-  int after_triggers;          /* True if there are any AFTER triggers */
-  int row_triggers_exist = 0;  /* True if any row triggers exist */
-
-  int newIdx      = -1;  /* index of trigger "new" temp table       */
-  int oldIdx      = -1;  /* index of trigger "old" temp table       */
-
-  sContext.pParse = 0;
-  if( pParse->nErr || sqlite_malloc_failed ) goto update_cleanup;
-  db = pParse->db;
-  assert( pTabList->nSrc==1 );
-  iStackDepth = pParse->nMem++;
-
-  /* Locate the table which we want to update. 
-  */
-  pTab = sqliteSrcListLookup(pParse, pTabList);
-  if( pTab==0 ) goto update_cleanup;
-  before_triggers = sqliteTriggersExist(pParse, pTab->pTrigger, 
-            TK_UPDATE, TK_BEFORE, TK_ROW, pChanges);
-  after_triggers = sqliteTriggersExist(pParse, pTab->pTrigger, 
-            TK_UPDATE, TK_AFTER, TK_ROW, pChanges);
-  row_triggers_exist = before_triggers || after_triggers;
-  isView = pTab->pSelect!=0;
-  if( sqliteIsReadOnly(pParse, pTab, before_triggers) ){
-    goto update_cleanup;
-  }
-  if( isView ){
-    if( sqliteViewGetColumnNames(pParse, pTab) ){
-      goto update_cleanup;
-    }
-  }
-  aXRef = sqliteMalloc( sizeof(int) * pTab->nCol );
-  if( aXRef==0 ) goto update_cleanup;
-  for(i=0; i<pTab->nCol; i++) aXRef[i] = -1;
-
-  /* If there are FOR EACH ROW triggers, allocate cursors for the
-  ** special OLD and NEW tables
-  */
-  if( row_triggers_exist ){
-    newIdx = pParse->nTab++;
-    oldIdx = pParse->nTab++;
-  }
-
-  /* Allocate a cursors for the main database table and for all indices.
-  ** The index cursors might not be used, but if they are used they
-  ** need to occur right after the database cursor.  So go ahead and
-  ** allocate enough space, just in case.
-  */
-  pTabList->a[0].iCursor = iCur = pParse->nTab++;
-  for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
-    pParse->nTab++;
-  }
-
-  /* Resolve the column names in all the expressions of the
-  ** of the UPDATE statement.  Also find the column index
-  ** for each column to be updated in the pChanges array.  For each
-  ** column to be updated, make sure we have authorization to change
-  ** that column.
-  */
-  chngRecno = 0;
-  for(i=0; i<pChanges->nExpr; i++){
-    if( sqliteExprResolveIds(pParse, pTabList, 0, pChanges->a[i].pExpr) ){
-      goto update_cleanup;
-    }
-    if( sqliteExprCheck(pParse, pChanges->a[i].pExpr, 0, 0) ){
-      goto update_cleanup;
-    }
-    for(j=0; j<pTab->nCol; j++){
-      if( sqliteStrICmp(pTab->aCol[j].zName, pChanges->a[i].zName)==0 ){
-        if( j==pTab->iPKey ){
-          chngRecno = 1;
-          pRecnoExpr = pChanges->a[i].pExpr;
-        }
-        aXRef[j] = i;
-        break;
-      }
-    }
-    if( j>=pTab->nCol ){
-      if( sqliteIsRowid(pChanges->a[i].zName) ){
-        chngRecno = 1;
-        pRecnoExpr = pChanges->a[i].pExpr;
-      }else{
-        sqliteErrorMsg(pParse, "no such column: %s", pChanges->a[i].zName);
-        goto update_cleanup;
-      }
-    }
-#ifndef SQLITE_OMIT_AUTHORIZATION
-    {
-      int rc;
-      rc = sqliteAuthCheck(pParse, SQLITE_UPDATE, pTab->zName,
-                           pTab->aCol[j].zName, db->aDb[pTab->iDb].zName);
-      if( rc==SQLITE_DENY ){
-        goto update_cleanup;
-      }else if( rc==SQLITE_IGNORE ){
-        aXRef[j] = -1;
-      }
-    }
-#endif
-  }
-
-  /* Allocate memory for the array apIdx[] and fill it with pointers to every
-  ** index that needs to be updated.  Indices only need updating if their
-  ** key includes one of the columns named in pChanges or if the record
-  ** number of the original table entry is changing.
-  */
-  for(nIdx=nIdxTotal=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, nIdxTotal++){
-    if( chngRecno ){
-      i = 0;
-    }else {
-      for(i=0; i<pIdx->nColumn; i++){
-        if( aXRef[pIdx->aiColumn[i]]>=0 ) break;
-      }
-    }
-    if( i<pIdx->nColumn ) nIdx++;
-  }
-  if( nIdxTotal>0 ){
-    apIdx = sqliteMalloc( sizeof(Index*) * nIdx + nIdxTotal );
-    if( apIdx==0 ) goto update_cleanup;
-    aIdxUsed = (char*)&apIdx[nIdx];
-  }
-  for(nIdx=j=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, j++){
-    if( chngRecno ){
-      i = 0;
-    }else{
-      for(i=0; i<pIdx->nColumn; i++){
-        if( aXRef[pIdx->aiColumn[i]]>=0 ) break;
-      }
-    }
-    if( i<pIdx->nColumn ){
-      apIdx[nIdx++] = pIdx;
-      aIdxUsed[j] = 1;
-    }else{
-      aIdxUsed[j] = 0;
-    }
-  }
-
-  /* Resolve the column names in all the expressions in the
-  ** WHERE clause.
-  */
-  if( pWhere ){
-    if( sqliteExprResolveIds(pParse, pTabList, 0, pWhere) ){
-      goto update_cleanup;
-    }
-    if( sqliteExprCheck(pParse, pWhere, 0, 0) ){
-      goto update_cleanup;
-    }
-  }
-
-  /* Start the view context
-  */
-  if( isView ){
-    sqliteAuthContextPush(pParse, &sContext, pTab->zName);
-  }
-
-  /* Begin generating code.
-  */
-  v = sqliteGetVdbe(pParse);
-  if( v==0 ) goto update_cleanup;
-  sqliteBeginWriteOperation(pParse, 1, pTab->iDb);
-
-  /* If we are trying to update a view, construct that view into
-  ** a temporary table.
-  */
-  if( isView ){
-    Select *pView;
-    pView = sqliteSelectDup(pTab->pSelect);
-    sqliteSelect(pParse, pView, SRT_TempTable, iCur, 0, 0, 0);
-    sqliteSelectDelete(pView);
-  }
-
-  /* Begin the database scan
-  */
-  pWInfo = sqliteWhereBegin(pParse, pTabList, pWhere, 1, 0);
-  if( pWInfo==0 ) goto update_cleanup;
-
-  /* Remember the index of every item to be updated.
-  */
-  sqliteVdbeAddOp(v, OP_ListWrite, 0, 0);
-
-  /* End the database scan loop.
-  */
-  sqliteWhereEnd(pWInfo);
-
-  /* Initialize the count of updated rows
-  */
-  if( db->flags & SQLITE_CountRows && !pParse->trigStack ){
-    sqliteVdbeAddOp(v, OP_Integer, 0, 0);
-  }
-
-  if( row_triggers_exist ){
-    /* Create pseudo-tables for NEW and OLD
-    */
-    sqliteVdbeAddOp(v, OP_OpenPseudo, oldIdx, 0);
-    sqliteVdbeAddOp(v, OP_OpenPseudo, newIdx, 0);
-
-    /* The top of the update loop for when there are triggers.
-    */
-    sqliteVdbeAddOp(v, OP_ListRewind, 0, 0);
-    sqliteVdbeAddOp(v, OP_StackDepth, 0, 0);
-    sqliteVdbeAddOp(v, OP_MemStore, iStackDepth, 1);
-    loopStart = sqliteVdbeAddOp(v, OP_MemLoad, iStackDepth, 0);
-    sqliteVdbeAddOp(v, OP_StackReset, 0, 0);
-    jumpInst = sqliteVdbeAddOp(v, OP_ListRead, 0, 0);
-    sqliteVdbeAddOp(v, OP_Dup, 0, 0);
-
-    /* Open a cursor and make it point to the record that is
-    ** being updated.
-    */
-    sqliteVdbeAddOp(v, OP_Dup, 0, 0);
-    if( !isView ){
-      sqliteVdbeAddOp(v, OP_Integer, pTab->iDb, 0);
-      sqliteVdbeAddOp(v, OP_OpenRead, iCur, pTab->tnum);
-    }
-    sqliteVdbeAddOp(v, OP_MoveTo, iCur, 0);
-
-    /* Generate the OLD table
-    */
-    sqliteVdbeAddOp(v, OP_Recno, iCur, 0);
-    sqliteVdbeAddOp(v, OP_RowData, iCur, 0);
-    sqliteVdbeAddOp(v, OP_PutIntKey, oldIdx, 0);
-
-    /* Generate the NEW table
-    */
-    if( chngRecno ){
-      sqliteExprCode(pParse, pRecnoExpr);
-    }else{
-      sqliteVdbeAddOp(v, OP_Recno, iCur, 0);
-    }
-    for(i=0; i<pTab->nCol; i++){
-      if( i==pTab->iPKey ){
-        sqliteVdbeAddOp(v, OP_String, 0, 0);
-        continue;
-      }
-      j = aXRef[i];
-      if( j<0 ){
-        sqliteVdbeAddOp(v, OP_Column, iCur, i);
-      }else{
-        sqliteExprCode(pParse, pChanges->a[j].pExpr);
-      }
-    }
-    sqliteVdbeAddOp(v, OP_MakeRecord, pTab->nCol, 0);
-    sqliteVdbeAddOp(v, OP_PutIntKey, newIdx, 0);
-    if( !isView ){
-      sqliteVdbeAddOp(v, OP_Close, iCur, 0);
-    }
-
-    /* Fire the BEFORE and INSTEAD OF triggers
-    */
-    if( sqliteCodeRowTrigger(pParse, TK_UPDATE, pChanges, TK_BEFORE, pTab, 
-          newIdx, oldIdx, onError, loopStart) ){
-      goto update_cleanup;
-    }
-  }
-
-  if( !isView ){
-    /* 
-    ** Open every index that needs updating.  Note that if any
-    ** index could potentially invoke a REPLACE conflict resolution 
-    ** action, then we need to open all indices because we might need
-    ** to be deleting some records.
-    */
-    sqliteVdbeAddOp(v, OP_Integer, pTab->iDb, 0);
-    sqliteVdbeAddOp(v, OP_OpenWrite, iCur, pTab->tnum);
-    if( onError==OE_Replace ){
-      openAll = 1;
-    }else{
-      openAll = 0;
-      for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
-        if( pIdx->onError==OE_Replace ){
-          openAll = 1;
-          break;
-        }
-      }
-    }
-    for(i=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, i++){
-      if( openAll || aIdxUsed[i] ){
-        sqliteVdbeAddOp(v, OP_Integer, pIdx->iDb, 0);
-        sqliteVdbeAddOp(v, OP_OpenWrite, iCur+i+1, pIdx->tnum);
-        assert( pParse->nTab>iCur+i+1 );
-      }
-    }
-
-    /* Loop over every record that needs updating.  We have to load
-    ** the old data for each record to be updated because some columns
-    ** might not change and we will need to copy the old value.
-    ** Also, the old data is needed to delete the old index entires.
-    ** So make the cursor point at the old record.
-    */
-    if( !row_triggers_exist ){
-      sqliteVdbeAddOp(v, OP_ListRewind, 0, 0);
-      jumpInst = loopStart = sqliteVdbeAddOp(v, OP_ListRead, 0, 0);
-      sqliteVdbeAddOp(v, OP_Dup, 0, 0);
-    }
-    sqliteVdbeAddOp(v, OP_NotExists, iCur, loopStart);
-
-    /* If the record number will change, push the record number as it
-    ** will be after the update. (The old record number is currently
-    ** on top of the stack.)
-    */
-    if( chngRecno ){
-      sqliteExprCode(pParse, pRecnoExpr);
-      sqliteVdbeAddOp(v, OP_MustBeInt, 0, 0);
-    }
-
-    /* Compute new data for this record.  
-    */
-    for(i=0; i<pTab->nCol; i++){
-      if( i==pTab->iPKey ){
-        sqliteVdbeAddOp(v, OP_String, 0, 0);
-        continue;
-      }
-      j = aXRef[i];
-      if( j<0 ){
-        sqliteVdbeAddOp(v, OP_Column, iCur, i);
-      }else{
-        sqliteExprCode(pParse, pChanges->a[j].pExpr);
-      }
-    }
-
-    /* Do constraint checks
-    */
-    sqliteGenerateConstraintChecks(pParse, pTab, iCur, aIdxUsed, chngRecno, 1,
-                                   onError, loopStart);
-
-    /* Delete the old indices for the current record.
-    */
-    sqliteGenerateRowIndexDelete(db, v, pTab, iCur, aIdxUsed);
-
-    /* If changing the record number, delete the old record.
-    */
-    if( chngRecno ){
-      sqliteVdbeAddOp(v, OP_Delete, iCur, 0);
-    }
-
-    /* Create the new index entries and the new record.
-    */
-    sqliteCompleteInsertion(pParse, pTab, iCur, aIdxUsed, chngRecno, 1, -1);
-  }
-
-  /* Increment the row counter 
-  */
-  if( db->flags & SQLITE_CountRows && !pParse->trigStack){
-    sqliteVdbeAddOp(v, OP_AddImm, 1, 0);
-  }
-
-  /* If there are triggers, close all the cursors after each iteration
-  ** through the loop.  The fire the after triggers.
-  */
-  if( row_triggers_exist ){
-    if( !isView ){
-      for(i=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, i++){
-        if( openAll || aIdxUsed[i] )
-          sqliteVdbeAddOp(v, OP_Close, iCur+i+1, 0);
-      }
-      sqliteVdbeAddOp(v, OP_Close, iCur, 0);
-      pParse->nTab = iCur;
-    }
-    if( sqliteCodeRowTrigger(pParse, TK_UPDATE, pChanges, TK_AFTER, pTab, 
-          newIdx, oldIdx, onError, loopStart) ){
-      goto update_cleanup;
-    }
-  }
-
-  /* Repeat the above with the next record to be updated, until
-  ** all record selected by the WHERE clause have been updated.
-  */
-  sqliteVdbeAddOp(v, OP_Goto, 0, loopStart);
-  sqliteVdbeChangeP2(v, jumpInst, sqliteVdbeCurrentAddr(v));
-  sqliteVdbeAddOp(v, OP_ListReset, 0, 0);
-
-  /* Close all tables if there were no FOR EACH ROW triggers */
-  if( !row_triggers_exist ){
-    for(i=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, i++){
-      if( openAll || aIdxUsed[i] ){
-        sqliteVdbeAddOp(v, OP_Close, iCur+i+1, 0);
-      }
-    }
-    sqliteVdbeAddOp(v, OP_Close, iCur, 0);
-    pParse->nTab = iCur;
-  }else{
-    sqliteVdbeAddOp(v, OP_Close, newIdx, 0);
-    sqliteVdbeAddOp(v, OP_Close, oldIdx, 0);
-  }
-
-  sqliteVdbeAddOp(v, OP_SetCounts, 0, 0);
-  sqliteEndWriteOperation(pParse);
-
-  /*
-  ** Return the number of rows that were changed.
-  */
-  if( db->flags & SQLITE_CountRows && !pParse->trigStack ){
-    sqliteVdbeOp3(v, OP_ColumnName, 0, 1, "rows updated", P3_STATIC);
-    sqliteVdbeAddOp(v, OP_Callback, 1, 0);
-  }
-
-update_cleanup:
-  sqliteAuthContextPop(&sContext);
-  sqliteFree(apIdx);
-  sqliteFree(aXRef);
-  sqliteSrcListDelete(pTabList);
-  sqliteExprListDelete(pChanges);
-  sqliteExprDelete(pWhere);
-  return;
-}