1/* -*- c-basic-offset: 2 -*- */
2/* Copyright(C) 2011-2015 Brazil
3
4 This library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License version 2.1 as published by the Free Software Foundation.
7
8 This library is distributed in the hope that it will be useful,
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 Lesser General Public License for more details.
12
13 You should have received a copy of the GNU Lesser General Public
14 License along with this library; if not, write to the Free Software
15 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
16*/
17
18#include "file.hpp"
19#include "file-impl.hpp"
20
21#include <new>
22
23namespace grn {
24namespace dat {
25
26File::File() : impl_(NULL) {}
27
28File::~File() {
29 delete impl_;
30}
31
32void File::create(const char *path, UInt64 size) {
33 File new_file;
34 new_file.impl_ = new (std::nothrow) FileImpl;
35 GRN_DAT_THROW_IF(MEMORY_ERROR, new_file.impl_ == NULL);
36 new_file.impl_->create(path, size);
37 new_file.swap(this);
38}
39
40void File::open(const char *path) {
41 File new_file;
42 new_file.impl_ = new (std::nothrow) FileImpl;
43 GRN_DAT_THROW_IF(MEMORY_ERROR, new_file.impl_ == NULL);
44 new_file.impl_->open(path);
45 new_file.swap(this);
46}
47
48void File::close() {
49 File().swap(this);
50}
51
52void *File::ptr() const {
53 return (impl_ != NULL) ? impl_->ptr() : NULL;
54}
55
56UInt64 File::size() const {
57 return (impl_ != NULL) ? impl_->size() : 0;
58}
59
60void File::swap(File *rhs) {
61 FileImpl * const temp = impl_;
62 impl_ = rhs->impl_;
63 rhs->impl_ = temp;
64}
65
66void File::flush() {
67 if (impl_) {
68 impl_->flush();
69 }
70}
71
72} // namespace dat
73} // namespace grn
74