Esempio n. 1
0
File: blob.go Progetto: pkf/gosqlite
// Close closes a BLOB handle.
// (See http://sqlite.org/c3ref/blob_close.html)
func (r *BlobReader) Close() error {
	if r == nil {
		return errors.New("nil sqlite blob")
	}
	rv := C.sqlite3_blob_close(r.bl)
	if rv != C.SQLITE_OK {
		return r.c.error(rv, "BlobReader.Close")
	}
	r.bl = nil
	return nil
}
Esempio n. 2
0
// Close closes a BLOB handle.
// (See http://sqlite.org/c3ref/blob_close.html)
func (r *BlobReader) Close() error {
	if r == nil {
		return errors.New("nil sqlite blob")
	}
	if r.bl == nil {
		return nil
	}
	rv := C.sqlite3_blob_close(r.bl) // must be called only once
	r.bl = nil
	if rv != C.SQLITE_OK {
		return r.c.error(rv, "BlobReader.Close")
	}
	return nil
}
Esempio n. 3
0
File: blob.go Progetto: pkf/gosqlite
func (c *Conn) blob_open(db, table, column string, row int64, write bool) (*C.sqlite3_blob, error) {
	zDb := C.CString(db)
	defer C.free(unsafe.Pointer(zDb))
	zTable := C.CString(table)
	defer C.free(unsafe.Pointer(zTable))
	zColumn := C.CString(column)
	defer C.free(unsafe.Pointer(zColumn))
	var bl *C.sqlite3_blob
	rv := C.sqlite3_blob_open(c.db, zDb, zTable, zColumn, C.sqlite3_int64(row), btocint(write), &bl)
	if rv != C.SQLITE_OK {
		if bl != nil {
			C.sqlite3_blob_close(bl)
		}
		return nil, c.error(rv, fmt.Sprintf("Conn.blob_open(db: %q, tbl: %q, col: %q, row: %d)", db, table, column, row))
	}
	if bl == nil {
		return nil, errors.New("sqlite succeeded without returning a blob")
	}
	return bl, nil
}