44 lines
1.1 KiB
Go
44 lines
1.1 KiB
Go
// Copyright 2024 The Sqlite Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package sqlite // import "modernc.org/sqlite"
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import (
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"unsafe"
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"modernc.org/libc"
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sqlite3 "modernc.org/sqlite/lib"
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)
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// Access to sqlite3_file_control
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type FileControl interface {
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// Set or query SQLITE_FCNTL_PERSIST_WAL, returns set mode or query result
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FileControlPersistWAL(dbName string, mode int) (int, error)
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}
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var _ FileControl = (*conn)(nil)
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func (c *conn) FileControlPersistWAL(dbName string, mode int) (int, error) {
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pi32 := c.tls.Alloc(4)
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defer c.tls.Free(4)
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*(*int32)(unsafe.Pointer(pi32)) = int32(mode)
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err := c.fileControl(dbName, sqlite3.SQLITE_FCNTL_PERSIST_WAL, pi32)
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return int(*(*int32)(unsafe.Pointer(pi32))), err
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}
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func (c *conn) fileControl(dbName string, op int, pArg uintptr) error {
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zDbName, err := libc.CString(dbName)
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if err != nil {
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return err
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}
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defer c.free(zDbName)
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if rc := sqlite3.Xsqlite3_file_control(c.tls, c.db, zDbName, int32(op), pArg); rc != sqlite3.SQLITE_OK {
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return c.errstr(rc)
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}
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return nil
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}
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