/*
** Find and return the schema associated with a BTree. Create
** a new one if necessary.
*/
Schema *sqlite3SchemaGet(Btree *pBt){
Schema * p;
if( pBt ){
p = (Schema *)sqlite3BtreeSchema(pBt,sizeof(Schema),sqlite3SchemaFree);
}else{
p = (Schema *)sqliteMalloc(sizeof(Schema));
}
if( p && 0==p->file_format ){
sqlite3HashInit(&p->tblHash, SQLITE_HASH_STRING, 0);
sqlite3HashInit(&p->idxHash, SQLITE_HASH_STRING, 0);
sqlite3HashInit(&p->trigHash, SQLITE_HASH_STRING, 0);
sqlite3HashInit(&p->aFKey, SQLITE_HASH_STRING, 1);
}
return p;
}
/*
** Find and return the schema associated with a BTree. Create
** a new one if necessary.
*/
Schema *sqlite3SchemaGet(sqlite3 *db, Btree *pBt){
Schema * p;
if( pBt ){
p = (Schema *)sqlite3BtreeSchema(pBt, sizeof(Schema), sqlite3SchemaFree);
}else{
p = (Schema *)sqlite3MallocZero(sizeof(Schema));
}
if( !p ){
db->mallocFailed = 1;
}else if ( 0==p->file_format ){
sqlite3HashInit(&p->tblHash);
sqlite3HashInit(&p->idxHash);
sqlite3HashInit(&p->trigHash);
p->enc = SQLITE_UTF8;
}
return p;
}
/*
** Find and return the schema associated with a BTree. Create
** a new one if necessary.
*/
Schema *sqlite3SchemaGet(sqlite3 *db, Btree *pBt){
Schema * p;
if( pBt ){
p = (Schema *)sqlite3BtreeSchema(pBt, sizeof(Schema), sqlite3SchemaClear);
}else{
p = (Schema *)sqlite3DbMallocZero(0, sizeof(Schema));
}
if( !p ){
sqlite3OomFault(db);
}else if ( 0==p->file_format ){
sqlite3HashInit(&p->tblHash);
sqlite3HashInit(&p->idxHash);
sqlite3HashInit(&p->trigHash);
sqlite3HashInit(&p->fkeyHash);
p->enc = SQLITE_UTF8;
}
return p;
}
