From 8781f745556be5d7402d0f3adc67ecfe32fe04a0 Mon Sep 17 00:00:00 2001
From: wolfbeast <mcwerewolf@gmail.com>
Date: Fri, 23 Feb 2018 11:03:38 +0100
Subject: Update NSPR to 4.18

---
 nsprpub/pr/src/md/windows/w95thred.c | 51 ++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

(limited to 'nsprpub/pr/src/md/windows/w95thred.c')

diff --git a/nsprpub/pr/src/md/windows/w95thred.c b/nsprpub/pr/src/md/windows/w95thred.c
index c27d982a7..a365411f5 100644
--- a/nsprpub/pr/src/md/windows/w95thred.c
+++ b/nsprpub/pr/src/md/windows/w95thred.c
@@ -1,3 +1,4 @@
+
 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
@@ -27,14 +28,32 @@ DWORD _pr_currentCPUIndex;
 int                           _pr_intsOff = 0; 
 _PRInterruptTable             _pr_interruptTable[] = { { 0 } };
 
+typedef HRESULT (WINAPI *SETTHREADDESCRIPTION)(HANDLE, PCWSTR);
+static SETTHREADDESCRIPTION sSetThreadDescription = NULL;
+
 void
 _PR_MD_EARLY_INIT()
 {
+    HMODULE hModule;
+
 #ifndef _PR_USE_STATIC_TLS
     _pr_currentThreadIndex = TlsAlloc();
     _pr_lastThreadIndex = TlsAlloc();
     _pr_currentCPUIndex = TlsAlloc();
 #endif
+
+#if defined(_WIN64) && defined(WIN95)
+    _fd_waiting_for_overlapped_done_lock = PR_NewLock();
+#endif
+
+    // SetThreadDescription is Windows 10 build 1607+
+    hModule = GetModuleHandleW(L"kernel32.dll");
+    if (hModule) {
+        sSetThreadDescription =
+            (SETTHREADDESCRIPTION) GetProcAddress(
+                                       hModule,
+                                       "SetThreadDescription");
+    }
 }
 
 void _PR_MD_CLEANUP_BEFORE_EXIT(void)
@@ -50,6 +69,29 @@ void _PR_MD_CLEANUP_BEFORE_EXIT(void)
     TlsFree(_pr_lastThreadIndex);
     TlsFree(_pr_currentCPUIndex);
 #endif
+
+#if defined(_WIN64) && defined(WIN95)
+    // For each iteration check if TFO overlapped IOs are down.
+    if (_fd_waiting_for_overlapped_done_lock) {
+        PRIntervalTime delay = PR_MillisecondsToInterval(1000);
+        PRFileDescList *cur;
+        do {
+            CheckOverlappedPendingSocketsAreDone();
+
+            PR_Lock(_fd_waiting_for_overlapped_done_lock);
+            cur = _fd_waiting_for_overlapped_done;
+            PR_Unlock(_fd_waiting_for_overlapped_done_lock);
+#if defined(DO_NOT_WAIT_FOR_CONNECT_OVERLAPPED_OPERATIONS)
+            cur = NULL;
+#endif
+            if (cur) {
+                PR_Sleep(delay); // wait another 1s.
+            }
+        } while (cur);
+
+        PR_DestroyLock(_fd_waiting_for_overlapped_done_lock);
+    }
+#endif
 }
 
 PRStatus
@@ -190,7 +232,16 @@ _PR_MD_SET_CURRENT_THREAD_NAME(const char *name)
 {
 #ifdef _MSC_VER
    THREADNAME_INFO info;
+#endif
+
+   if (sSetThreadDescription) {
+      WCHAR wideName[MAX_PATH];
+      if (MultiByteToWideChar(CP_ACP, 0, name, -1, wideName, MAX_PATH)) {
+         sSetThreadDescription(GetCurrentThread(), wideName);
+      }
+   }
 
+#ifdef _MSC_VER
    if (!IsDebuggerPresent())
       return;
 
-- 
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