forked from mirror/go-sqlite3
60 lines
1.0 KiB
Go
60 lines
1.0 KiB
Go
package sqlite3
|
|
|
|
/*
|
|
#include <sqlite3.h>
|
|
#include <stdlib.h>
|
|
*/
|
|
import "C"
|
|
import (
|
|
"unsafe"
|
|
)
|
|
|
|
type Backup struct {
|
|
b *C.sqlite3_backup
|
|
}
|
|
|
|
func IsDone(err error) bool {
|
|
sqlErr, ok := err.(Error)
|
|
if !ok {
|
|
return false
|
|
}
|
|
|
|
return sqlErr.Code == ErrDone
|
|
}
|
|
|
|
func (c *SQLiteConn) Backup(dest string, conn *SQLiteConn, src string) (*Backup, error) {
|
|
destptr := C.CString(dest)
|
|
defer C.free(unsafe.Pointer(destptr))
|
|
srcptr := C.CString(src)
|
|
defer C.free(unsafe.Pointer(srcptr))
|
|
|
|
if b := C.sqlite3_backup_init(c.db, destptr, conn.db, srcptr); b != nil {
|
|
return &Backup{b: b}, nil
|
|
}
|
|
return nil, c.lastError()
|
|
}
|
|
|
|
func (b *Backup) Step(p int) error {
|
|
ret := C.sqlite3_backup_step(b.b, C.int(p))
|
|
if ret != 0 {
|
|
return Error{Code: ErrNo(ret)}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (b *Backup) Remaining() int {
|
|
return int(C.sqlite3_backup_remaining(b.b))
|
|
}
|
|
|
|
func (b *Backup) PageCount() int {
|
|
return int(C.sqlite3_backup_pagecount(b.b))
|
|
}
|
|
|
|
func (b *Backup) Finish() error {
|
|
ret := C.sqlite3_backup_finish(b.b)
|
|
if ret != 0 {
|
|
return Error{Code: ErrNo(ret)}
|
|
}
|
|
return nil
|
|
}
|