blob: 15b80ea4b288c014373a7dc8d66566e8b4c837c7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MOJO_EDK_EMBEDDER_SCOPED_PLATFORM_HANDLE_H_
#define MOJO_EDK_EMBEDDER_SCOPED_PLATFORM_HANDLE_H_
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "mojo/edk/embedder/platform_handle.h"
#include "mojo/edk/system/system_impl_export.h"
#include "mojo/public/c/system/macros.h"
namespace mojo {
namespace edk {
class MOJO_SYSTEM_IMPL_EXPORT ScopedPlatformHandle {
public:
ScopedPlatformHandle() {}
explicit ScopedPlatformHandle(PlatformHandle handle) : handle_(handle) {}
~ScopedPlatformHandle() { handle_.CloseIfNecessary(); }
// Move-only constructor and operator=.
ScopedPlatformHandle(ScopedPlatformHandle&& other)
: handle_(other.release()) {}
ScopedPlatformHandle& operator=(ScopedPlatformHandle&& other) {
if (this != &other)
handle_ = other.release();
return *this;
}
const PlatformHandle& get() const { return handle_; }
void swap(ScopedPlatformHandle& other) {
PlatformHandle temp = handle_;
handle_ = other.handle_;
other.handle_ = temp;
}
PlatformHandle release() WARN_UNUSED_RESULT {
PlatformHandle rv = handle_;
handle_ = PlatformHandle();
return rv;
}
void reset(PlatformHandle handle = PlatformHandle()) {
handle_.CloseIfNecessary();
handle_ = handle;
}
bool is_valid() const { return handle_.is_valid(); }
private:
PlatformHandle handle_;
DISALLOW_COPY_AND_ASSIGN(ScopedPlatformHandle);
};
} // namespace edk
} // namespace mojo
#endif // MOJO_EDK_EMBEDDER_SCOPED_PLATFORM_HANDLE_H_
|
