language: D (dmd) (dmd-2.042)
date: 987 days 21 hours ago
link:
visibility: public 
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private shared int __refCount;
private shared Mutex __mutex;
 
shared static this()
{
    __mutex = new shared(Mutex);
}
 
static this()
{
    version(Windows)
    {
        synchronized (__mutex) {
            if (__refCount++ == 0) {
                WSADATA wd;
 
                // Winsock will still load if an older version is present.
                // The version is just a request.
                int val;
                val = WSAStartup(0x2020, &wd);
                if(val) // Request Winsock 2.2 for IPv6.
                    throw new SocketException("Unable to initialize socket library", val);
            }
        }
    }
}
 
static ~this()
{
    version(Win32)
    {
        synchronized (__mutex) {
            if (--__refCount == 0)
                WSACleanup();
        }
    }
}