Update NSPR to 4.16

nsprpub/pr/include/private/primpl.h

@@ -1225,6 +1225,13 @@ extern PRInt32 _PR_MD_SENDTO(
     const PRNetAddr *addr, PRUint32 addrlen, PRIntervalTime timeout);
 #define    _PR_MD_SENDTO _MD_SENDTO
 
+#if defined(_WIN64) && defined(WIN95)
+extern PRInt32 _PR_MD_TCPSENDTO(
+    PRFileDesc *fd, const void *buf, PRInt32 amount, PRIntn flags,
+    const PRNetAddr *addr, PRUint32 addrlen, PRIntervalTime timeout);
+#define    _PR_MD_TCPSENDTO _MD_TCPSENDTO
+#endif
+
 extern PRInt32 _PR_MD_SOCKETPAIR(int af, int type, int flags, PROsfd *osfd);
 #define    _PR_MD_SOCKETPAIR _MD_SOCKETPAIR
 
@@ -1747,6 +1754,18 @@ struct PRFilePrivate {
                          * requires knowing the address family of the 
 			 * socket, we save the address family here. */
 #endif
+
+#if defined(_WIN64)
+    /* This is necessary for TCP Fast Open. TCP Fast Open in windows must
+     * use ConnectEx function which uses OVERLAPPED. TCPSendTo will call
+     * ConnectEx to send fast open data. If ConnectEx returns
+     * ERROR_IO_PENDING we need to save OVERLAPPED structure and we will
+     * use it in ConnectContinue to get the final result of ConnectEx.
+     */
+    PRBool alreadyConnected;
+    PRBool overlappedActive;
+    OVERLAPPED ol;
+#endif
 };
 
 #ifdef _WIN64