A few bugfixes related to UTF-16 databases. sqlite3_open() still assumes a

UTF-8 database, and sqlite3_open16() still assumes a UTF-16 db. (CVS 1434)

FossilOrigin-Name: b3581d2796c8cb6581b7156774698a05fc8f800e

manifest

@@ -1,5 +1,5 @@
-C Steps\stowards\sUTF-16\sdatabases.\sSome\stests\sare\sfailing\sbecause\sof\sthis\ncommit.\s(CVS\s1433)
+C A\sfew\sbugfixes\srelated\sto\sUTF-16\sdatabases.\ssqlite3_open()\sstill\sassumes\sa\nUTF-8\sdatabase,\sand\ssqlite3_open16()\sstill\sassumes\sa\sUTF-16\sdb.\s(CVS\s1434)
-D 2004-05-22T03:05:34
+D 2004-05-22T07:27:46
 F Makefile.in ab7b0d5118e2da97bac66be8684a1034e3500f5a
 F Makefile.linux-gcc b86a99c493a5bfb402d1d9178dcdc4bd4b32f906
 F README f1de682fbbd94899d50aca13d387d1b3fd3be2dd
@@ -64,10 +64,10 @@ F src/update.c 1a5e9182596f3ea8c7a141e308a3d2a7e5689fee
 F src/utf.c 537e1c98cddc623628d44497ec02c2246cf66dea
 F src/util.c 5cbeb452da09cfc7248de9948c15b14d840723f7
 F src/vacuum.c c134702e023db8778e6be59ac0ea7b02315b5476
-F src/vdbe.c 91e6663c690f5208fadca0bd06b4878aed61f239
+F src/vdbe.c 3ce76c80887e5a5a0a850b2cb7ea1e353c113e36
 F src/vdbe.h 391d5642a83af686f35c228fcd36cb4456d68f44
 F src/vdbeInt.h f40e8048d644c8389cda16f46479376f763d56e6
-F src/vdbeaux.c 8e993bfd0f943163548ce3e09797ce5503d2366f
+F src/vdbeaux.c d3dfb6d40eb1fdf2626896e8b13fe7b50134ff12
 F src/where.c efe5d25fe18cd7381722457898cd863e84097a0c
 F test/all.test 569a92a8ee88f5300c057cc4a8f50fbbc69a3242
 F test/attach.test cb9b884344e6cfa5e165965d5b1adea679a24c83
@@ -195,7 +195,7 @@ F www/sqlite.tcl 3c83b08cf9f18aa2d69453ff441a36c40e431604
 F www/tclsqlite.tcl b9271d44dcf147a93c98f8ecf28c927307abd6da
 F www/vdbe.tcl 9b9095d4495f37697fd1935d10e14c6015e80aa1
 F www/whentouse.tcl a8335bce47cc2fddb07f19052cb0cb4d9129a8e4
-P 8069caca82bc4d40d8ac95bafdd91a18a70ab1e0
+P c4a8246864eee7cb993ab7b703324d92c284d72a
-R f44ee6ced05cfe974110947781c41eee
+R 92babf97adb0222e27f8107a93f8fb2a
 U danielk1977
-Z 35da3b16c198243de8a20489bd428c37
+Z c69763de411eab46b3116a06db08807c

manifest.uuid

@@ -1 +1 @@
-c4a8246864eee7cb993ab7b703324d92c284d72a
+b3581d2796c8cb6581b7156774698a05fc8f800e

src/vdbe.c

@@ -43,7 +43,7 @@
 ** in this file for details.  If in doubt, do not deviate from existing
 ** commenting and indentation practices when changing or adding code.
 **
-** $Id: vdbe.c,v 1.316 2004/05/22 03:05:34 danielk1977 Exp $
+** $Id: vdbe.c,v 1.317 2004/05/22 07:27:46 danielk1977 Exp $
 */
 #include "sqliteInt.h"
 #include "os.h"
@@ -523,7 +523,7 @@ const unsigned char *sqlite3_column_data(sqlite3_stmt *pStmt, int i){
     return 0;
   }
 
-  if( !pVal->flags&MEM_Blob ){
+  if( !(pVal->flags&MEM_Blob) ){
     Stringify(pVal);
     SetEncoding(pVal, MEM_Utf8|MEM_Term);
   }
@@ -1336,7 +1336,7 @@ case OP_Integer: {
   pTos->flags = MEM_Int;
   if( pOp->p3 ){
     pTos->z = pOp->p3;
-    pTos->flags |= MEM_Utf8 | MEM_Str | MEM_Static;
+    pTos->flags |= MEM_Utf8 | MEM_Str | MEM_Static | MEM_Term;
     pTos->n = strlen(pOp->p3)+1;
     if( pTos->i==0 ){
       sqlite3GetInt64(pTos->z, &pTos->i);
@@ -1377,7 +1377,7 @@ case OP_Real: {
   pTos->r = sqlite3AtoF(z, 0);
   pTos->z = z;
   pTos->n = strlen(z)+1;
-  pTos->flags = MEM_Real|MEM_Str|MEM_Static|MEM_Utf8;
+  pTos->flags = MEM_Real|MEM_Str|MEM_Static|MEM_Utf8|MEM_Term;
   break;
 }
 
@@ -1484,8 +1484,8 @@ case OP_Pull: {
   Deephemeralize(pTos);
   for(i=0; i<pOp->p1; i++, pFrom++){
     Deephemeralize(&pFrom[1]);
-    *pFrom = pFrom[1];
     assert( (pFrom->flags & MEM_Ephem)==0 );
+    *pFrom = pFrom[1];
     if( pFrom->flags & MEM_Short ){
       assert( pFrom->flags & (MEM_Str|MEM_Blob) );
       assert( pFrom->z==pFrom[1].zShort );
@@ -2326,7 +2326,7 @@ case OP_Class: {
   };
 
   Release(pTos);
-  pTos->flags = MEM_Str|MEM_Static|MEM_Utf8;
+  pTos->flags = MEM_Str|MEM_Static|MEM_Utf8|MEM_Term;
 
   for(i=0; i<5; i++){
     if( classes[i].mask&flags ){
@@ -2335,6 +2335,7 @@ case OP_Class: {
     }
   }
   assert( i<5 );
+  pTos->n = strlen(classes[i].zClass);
   break;
 }
 
@@ -2399,7 +2400,12 @@ case OP_Column: {
     u64 colType;    /* The serial type of the value being read. */
 
     assert( &pTos[i-1]>=p->aStack );
-    assert( pTos[i].flags & MEM_Blob );
+
+    /* FIX ME: I don't understand this either. How is it related to
+    ** OP_SortNext? (I thought it would be the commented out assert())
+    */
+    /* assert( pTos[i].flags & MEM_Blob ); */
+    assert( pTos[i].flags & (MEM_Blob|MEM_Str) );
     assert( pTos[i-1].flags & MEM_Int );
 
     if( pTos[i].n==0 ){
@@ -4755,7 +4761,11 @@ case OP_SortNext: {
     pTos++;
     pTos->z = pSorter->pData;
     pTos->n = pSorter->nData;
-    pTos->flags = MEM_Blob|MEM_Dyn;
+    /* FIX ME: I don't understand this. What does the sorter return? 
+    ** I thought it would be the commented out flags.
+    */
+    /* pTos->flags = MEM_Blob|MEM_Dyn; */
+    pTos->flags = MEM_Str|MEM_Dyn|MEM_Utf8|MEM_Term;
     sqliteFree(pSorter->zKey);
     sqliteFree(pSorter);
   }else{
@@ -4934,7 +4944,7 @@ case OP_FileColumn: {
   if( z ){
     pTos->n = strlen(z) + 1;
     pTos->z = z;
-    pTos->flags = MEM_Utf8 | MEM_Str | MEM_Ephem;
+    pTos->flags = MEM_Utf8 | MEM_Str | MEM_Ephem | MEM_Term;
   }else{
     pTos->flags = MEM_Null;
   }

src/vdbeaux.c

@@ -641,12 +641,25 @@ int sqlite3VdbeList(
      0
   };
 
-  assert( p->popStack==0 );
   assert( p->explain );
+
+  /* Even though this opcode does not put dynamic strings onto the
+  ** the stack, they may become dynamic if the user calls
+  ** sqlite3_column_data16(), causing a translation to UTF-16 encoding.
+  */
+  if( p->pTos==&p->aStack[4] ){
+    for(i=0; i<5; i++){
+      if( p->aStack[i].flags & MEM_Dyn ){
+        sqliteFree(p->aStack[i].z);
+      }
+      p->aStack[i].flags = 0;
+    }
+  }
+
   p->azColName = azColumnNames;
-  p->azResColumn = p->zArgv;
+  p->resOnStack = 0;
-  for(i=0; i<5; i++) p->zArgv[i] = p->aStack[i].zShort;
+
-  i = p->pc;
+  i = p->pc++;
   if( i>=p->nOp ){
     p->rc = SQLITE_OK;
     rc = SQLITE_DONE;
@@ -661,16 +674,25 @@ int sqlite3VdbeList(
     sqlite3SetString(&p->zErrMsg, sqlite3_error_string(p->rc), (char*)0);
   }else{
     Op *pOp = &p->aOp[i];
-    sprintf(p->zArgv[0],"%d",i);
+    p->aStack[0].flags = MEM_Int;
-    sprintf(p->zArgv[2],"%d", pOp->p1);
+    p->aStack[0].i = i;                                /* Program counter */
-    sprintf(p->zArgv[3],"%d", pOp->p2);
+    p->aStack[1].flags = MEM_Static|MEM_Str|MEM_Utf8|MEM_Term;
-    p->zArgv[4] =
+    p->aStack[1].z = sqlite3OpcodeNames[pOp->opcode];  /* Opcode */
-          displayP3(pOp, p->aStack[4].zShort, sizeof(p->aStack[4].zShort));
+    p->aStack[2].flags = MEM_Int;
-    p->zArgv[1] = sqlite3OpcodeNames[pOp->opcode];
+    p->aStack[2].i = pOp->p1;                          /* P1 */
-    p->pc = i+1;
+    p->aStack[3].flags = MEM_Int;
-    p->azResColumn = p->zArgv;
+    p->aStack[3].i = pOp->p2;                          /* P2 */
+    p->aStack[4].flags = MEM_Str|MEM_Utf8|MEM_Term;    /* P3 */
+    p->aStack[4].z = displayP3(pOp, p->aStack[4].zShort, NBFS);
+    if( p->aStack[4].z==p->aStack[4].zShort ){
+      p->aStack[4].flags |= MEM_Short;
+    }else{
+      p->aStack[4].flags |= MEM_Static;
+    }
     p->nResColumn = 5;
+    p->pTos = &p->aStack[4];
     p->rc = SQLITE_OK;
+    p->resOnStack = 1;
     rc = SQLITE_ROW;
   }
   return rc;