blob: 06ac448a817b4dca485a816e38a715efd7ce266a (
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
|
// Copyright (c) 2011 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 NET_BASE_WINSOCK_UTIL_H_
#define NET_BASE_WINSOCK_UTIL_H_
#include <winsock2.h>
#include "net/base/net_export.h"
namespace net {
// Assert that the (manual-reset) event object is not signaled.
void AssertEventNotSignaled(WSAEVENT hEvent);
// If the (manual-reset) event object is signaled, resets it and returns true.
// Otherwise, does nothing and returns false. Called after a Winsock function
// succeeds synchronously
//
// Our testing shows that except in rare cases (when running inside QEMU),
// the event object is already signaled at this point, so we call this method
// to avoid a context switch in common cases. This is just a performance
// optimization. The code still works if this function simply returns false.
bool ResetEventIfSignaled(WSAEVENT hEvent);
// Interface to create Windows Socket.
// Usually such factories are used for testing purposes, which is not true in
// this case. This interface is used to substitute WSASocket to make possible
// execution of some network code in sandbox.
class NET_EXPORT PlatformSocketFactory {
public:
PlatformSocketFactory() {}
virtual ~PlatformSocketFactory() {}
// Creates Windows socket. See WSASocket documentation of parameters.
virtual SOCKET CreateSocket(int family, int type, int protocol) = 0;
// Replace WSASocket with given factory. The factory will be used by
// CreatePlatformSocket.
static void SetInstance(PlatformSocketFactory* factory);
};
// Creates Windows Socket. See WSASocket documentation of parameters.
SOCKET CreatePlatformSocket(int family, int type, int protocol);
} // namespace net
#endif // NET_BASE_WINSOCK_UTIL_H_
|
