mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-24 14:26:09 +03:00
49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
// 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.
|
|
|
|
#include <winsock2.h>
|
|
|
|
#include "net/base/winsock_init.h"
|
|
|
|
#include "base/lazy_instance.h"
|
|
#include "base/logging.h"
|
|
|
|
namespace {
|
|
|
|
class WinsockInitSingleton {
|
|
public:
|
|
WinsockInitSingleton() {
|
|
WORD winsock_ver = MAKEWORD(2, 2);
|
|
WSAData wsa_data;
|
|
bool did_init = (WSAStartup(winsock_ver, &wsa_data) == 0);
|
|
if (did_init) {
|
|
DCHECK(wsa_data.wVersion == winsock_ver);
|
|
|
|
// The first time WSAGetLastError is called, the delay load helper will
|
|
// resolve the address with GetProcAddress and fixup the import. If a
|
|
// third party application hooks system functions without correctly
|
|
// restoring the error code, it is possible that the error code will be
|
|
// overwritten during delay load resolution. The result of the first
|
|
// call may be incorrect, so make sure the function is bound and future
|
|
// results will be correct.
|
|
WSAGetLastError();
|
|
}
|
|
}
|
|
};
|
|
|
|
// Worker pool threads that use the Windows Sockets API may still be running at
|
|
// shutdown. Leak instance and skip cleanup.
|
|
static base::LazyInstance<WinsockInitSingleton>::Leaky
|
|
g_winsock_init_singleton = LAZY_INSTANCE_INITIALIZER;
|
|
|
|
} // namespace
|
|
|
|
namespace net {
|
|
|
|
void EnsureWinsockInit() {
|
|
g_winsock_init_singleton.Get();
|
|
}
|
|
|
|
} // namespace net
|