a geicko-2 based round robin ranking system designed to test c++ battleship submissions
battleship.dunkirk.sh
dunkirk.sh
1// Copyright (C) 2019 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
2//
3// Use of this source code is governed by an MIT-style
4// license that can be found in the LICENSE file.
5
6package sqlite3
7
8/*
9#ifndef USE_LIBSQLITE3
10#include "sqlite3-binding.h"
11#else
12#include <sqlite3.h>
13#endif
14#include <stdlib.h>
15*/
16import "C"
17import (
18 "runtime"
19 "unsafe"
20)
21
22// SQLiteBackup implement interface of Backup.
23type SQLiteBackup struct {
24 b *C.sqlite3_backup
25}
26
27// Backup make backup from src to dest.
28func (destConn *SQLiteConn) Backup(dest string, srcConn *SQLiteConn, src string) (*SQLiteBackup, error) {
29 destptr := C.CString(dest)
30 defer C.free(unsafe.Pointer(destptr))
31 srcptr := C.CString(src)
32 defer C.free(unsafe.Pointer(srcptr))
33
34 if b := C.sqlite3_backup_init(destConn.db, destptr, srcConn.db, srcptr); b != nil {
35 bb := &SQLiteBackup{b: b}
36 runtime.SetFinalizer(bb, (*SQLiteBackup).Finish)
37 return bb, nil
38 }
39 return nil, destConn.lastError()
40}
41
42// Step to backs up for one step. Calls the underlying `sqlite3_backup_step`
43// function. This function returns a boolean indicating if the backup is done
44// and an error signalling any other error. Done is returned if the underlying
45// C function returns SQLITE_DONE (Code 101)
46func (b *SQLiteBackup) Step(p int) (bool, error) {
47 ret := C.sqlite3_backup_step(b.b, C.int(p))
48 if ret == C.SQLITE_DONE {
49 return true, nil
50 } else if ret != 0 && ret != C.SQLITE_LOCKED && ret != C.SQLITE_BUSY {
51 return false, Error{Code: ErrNo(ret)}
52 }
53 return false, nil
54}
55
56// Remaining return whether have the rest for backup.
57func (b *SQLiteBackup) Remaining() int {
58 return int(C.sqlite3_backup_remaining(b.b))
59}
60
61// PageCount return count of pages.
62func (b *SQLiteBackup) PageCount() int {
63 return int(C.sqlite3_backup_pagecount(b.b))
64}
65
66// Finish close backup.
67func (b *SQLiteBackup) Finish() error {
68 return b.Close()
69}
70
71// Close close backup.
72func (b *SQLiteBackup) Close() error {
73 ret := C.sqlite3_backup_finish(b.b)
74
75 // sqlite3_backup_finish() never fails, it just returns the
76 // error code from previous operations, so clean up before
77 // checking and returning an error
78 b.b = nil
79 runtime.SetFinalizer(b, nil)
80
81 if ret != 0 {
82 return Error{Code: ErrNo(ret)}
83 }
84 return nil
85}