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Upgraded bundled libsqlite to 2.8.11 (fixed critical bug of *NIX systems).

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This commit is contained in:
Ilia Alshanetsky 2004-01-14 17:08:27 +00:00
parent 49b698c67e
commit 6e350b553b
20 changed files with 655 additions and 355 deletions
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48
ext/sqlite/libsqlite/src/vdbeaux.c
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@ -992,3 +992,51 @@ void sqliteVdbeDelete(Vdbe *p){
p->magic = VDBE_MAGIC_DEAD;
sqliteFree(p);
}
/*
** Convert an integer in between the native integer format and
** the bigEndian format used as the record number for tables.
**
** The bigEndian format (most significant byte first) is used for
** record numbers so that records will sort into the correct order
** even though memcmp() is used to compare the keys. On machines
** whose native integer format is little endian (ex: i486) the
** order of bytes is reversed. On native big-endian machines
** (ex: Alpha, Sparc, Motorola) the byte order is the same.
**
** This function is its own inverse. In other words
**
** X == byteSwap(byteSwap(X))
*/
int sqliteVdbeByteSwap(int x){
union {
char zBuf[sizeof(int)];
int i;
} ux;
ux.zBuf[3] = x&0xff;
ux.zBuf[2] = (x>>8)&0xff;
ux.zBuf[1] = (x>>16)&0xff;
ux.zBuf[0] = (x>>24)&0xff;
return ux.i;
}
/*
** If a MoveTo operation is pending on the given cursor, then do that
** MoveTo now. Return an error code. If no MoveTo is pending, this
** routine does nothing and returns SQLITE_OK.
*/
int sqliteVdbeCursorMoveto(Cursor *p){
if( p->deferredMoveto ){
int res;
extern int sqlite_search_count;
sqliteBtreeMoveto(p->pCursor, (char*)&p->movetoTarget, sizeof(int), &res);
p->lastRecno = keyToInt(p->movetoTarget);
p->recnoIsValid = res==0;
if( res<0 ){
sqliteBtreeNext(p->pCursor, &res);
}
sqlite_search_count++;
p->deferredMoveto = 0;
}
return SQLITE_OK;
}