Revert "Update NSPR to 4.18"

This reverts commit 8781f745556be5d7402d0f3adc67ecfe32fe04a0.

6 files changed, 21 insertions, 87 deletions

diff --git a/nsprpub/pr/src/md/unix/unix.c b/nsprpub/pr/src/md/unix/unix.c
index 29e24e5745..662f561b6f 100644
--- a/nsprpub/pr/src/md/unix/unix.c
+++ b/nsprpub/pr/src/md/unix/unix.c
@@ -2854,11 +2854,28 @@ void _PR_UnixInit(void)
 #endif
 #endif  /* !defined(_PR_PTHREADS) */
 
+    /*
+     * Under HP-UX DCE threads, sigaction() installs a per-thread
+     * handler, so we use sigvector() to install a process-wide
+     * handler.
+     */
+#if defined(HPUX) && defined(_PR_DCETHREADS)
+    {
+        struct sigvec vec;
+
+        vec.sv_handler = SIG_IGN;
+        vec.sv_mask = 0;
+        vec.sv_flags = 0;
+        rv = sigvector(SIGPIPE, &vec, NULL);
+        PR_ASSERT(0 == rv);
+    }
+#else
     sigact.sa_handler = SIG_IGN;
     sigemptyset(&sigact.sa_mask);
     sigact.sa_flags = 0;
     rv = sigaction(SIGPIPE, &sigact, 0);
     PR_ASSERT(0 == rv);
+#endif /* HPUX && _PR_DCETHREADS */
 
     _pr_rename_lock = PR_NewLock();
     PR_ASSERT(NULL != _pr_rename_lock);
diff --git a/nsprpub/pr/src/md/unix/uxproces.c b/nsprpub/pr/src/md/unix/uxproces.c
index 18f23fde80..5286b9e185 100644
--- a/nsprpub/pr/src/md/unix/uxproces.c
+++ b/nsprpub/pr/src/md/unix/uxproces.c
@@ -685,6 +685,10 @@ static void pr_SigchldHandler(int sig)
 
 static void pr_InstallSigchldHandler()
 {
+#if defined(HPUX) && defined(_PR_DCETHREADS)
+#error "HP-UX DCE threads have their own SIGCHLD handler"
+#endif
+
     struct sigaction act, oact;
     int rv;
 
diff --git a/nsprpub/pr/src/md/windows/ntthread.c b/nsprpub/pr/src/md/windows/ntthread.c
index 1fdf0e93be..fead1236d2 100644
--- a/nsprpub/pr/src/md/windows/ntthread.c
+++ b/nsprpub/pr/src/md/windows/ntthread.c
@@ -27,9 +27,6 @@ PRUint32                        _nt_idleCount;
 extern __declspec(thread) PRThread *_pr_io_restarted_io;
 extern DWORD _pr_io_restartedIOIndex;
 
-typedef HRESULT (WINAPI *SETTHREADDESCRIPTION)(HANDLE, PCWSTR);
-static SETTHREADDESCRIPTION sSetThreadDescription = NULL;
-
 /* Must check the restarted_io *before* decrementing no_sched to 0 */
 #define POST_SWITCH_WORK() \
     PR_BEGIN_MACRO \
@@ -82,8 +79,6 @@ _nt_handle_restarted_io(PRThread *restarted_io)
 void
 _PR_MD_EARLY_INIT()
 {
-    HMODULE hModule;
-
     _MD_NEW_LOCK( &_nt_idleLock );
     _nt_idleCount = 0;
     PR_INIT_CLIST(&_nt_idleList);
@@ -103,15 +98,6 @@ _PR_MD_EARLY_INIT()
         _pr_intsOffIndex = TlsAlloc();
         _pr_io_restartedIOIndex = TlsAlloc();
     }
-
-    // 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)
@@ -307,16 +293,7 @@ _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;
 
diff --git a/nsprpub/pr/src/md/windows/w95sock.c b/nsprpub/pr/src/md/windows/w95sock.c
index c6a3ec111f..0429c655aa 100644
--- a/nsprpub/pr/src/md/windows/w95sock.c
+++ b/nsprpub/pr/src/md/windows/w95sock.c
@@ -382,11 +382,6 @@ PRInt32
 _PR_MD_TCPSENDTO(PRFileDesc *fd, const void *buf, PRInt32 amount, PRIntn flags,
                  const PRNetAddr *addr, PRUint32 addrlen, PRIntervalTime timeout)
 {
-    if (!_fd_waiting_for_overlapped_done_lock) {
-        PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
-        return PR_FAILURE;
-    }
-
     if (PR_CallOnce(&_pr_has_connectex_once, _pr_set_connectex) != PR_SUCCESS) {
         PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
         return PR_FAILURE;
diff --git a/nsprpub/pr/src/md/windows/w95thred.c b/nsprpub/pr/src/md/windows/w95thred.c
index a365411f50..c27d982a74 100644
--- a/nsprpub/pr/src/md/windows/w95thred.c
+++ b/nsprpub/pr/src/md/windows/w95thred.c
@@ -1,4 +1,3 @@
-
 /* -*- 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
@@ -28,32 +27,14 @@ 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)
@@ -69,29 +50,6 @@ 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
@@ -232,16 +190,7 @@ _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;
 
diff --git a/nsprpub/pr/src/md/windows/win32_errors.c b/nsprpub/pr/src/md/windows/win32_errors.c
index 2757921875..d26820a7a9 100644
--- a/nsprpub/pr/src/md/windows/win32_errors.c
+++ b/nsprpub/pr/src/md/windows/win32_errors.c
@@ -166,26 +166,21 @@ void _MD_win32_map_default_error(PRInt32 err)
             prError = PR_ADDRESS_IN_USE_ERROR;
             break;
         case WSAEADDRNOTAVAIL:
-        case ERROR_INVALID_NETNAME:
             prError = PR_ADDRESS_NOT_AVAILABLE_ERROR;
             break;
         case WSAEAFNOSUPPORT:
-        case ERROR_INCORRECT_ADDRESS:
             prError = PR_ADDRESS_NOT_SUPPORTED_ERROR;
             break;
         case WSAEALREADY:
-        case ERROR_ALREADY_INITIALIZED:
             prError = PR_ALREADY_INITIATED_ERROR;
             break;
         case WSAEBADF:
             prError = PR_BAD_DESCRIPTOR_ERROR;
             break;
         case WSAECONNABORTED:
-        case ERROR_CONNECTION_ABORTED:
             prError = PR_CONNECT_ABORTED_ERROR;
             break;
         case WSAECONNREFUSED:
-        case ERROR_CONNECTION_REFUSED:
             prError = PR_CONNECT_REFUSED_ERROR;
             break;
         case WSAECONNRESET:
@@ -198,7 +193,6 @@ void _MD_win32_map_default_error(PRInt32 err)
             prError = PR_ACCESS_FAULT_ERROR;
             break;
         case WSAEHOSTUNREACH:
-        case ERROR_HOST_UNREACHABLE:
             prError = PR_HOST_UNREACHABLE_ERROR;
             break;
         case WSAEINVAL:
@@ -214,14 +208,12 @@ void _MD_win32_map_default_error(PRInt32 err)
             prError = PR_BUFFER_OVERFLOW_ERROR;
             break;
         case WSAENETDOWN:
-        case ERROR_NO_NETWORK:
             prError = PR_NETWORK_DOWN_ERROR;
             break;
         case WSAENETRESET:
             prError = PR_CONNECT_ABORTED_ERROR;
             break;
         case WSAENETUNREACH:
-        case ERROR_NETWORK_UNREACHABLE:
             prError = PR_NETWORK_UNREACHABLE_ERROR;
             break;
         case WSAENOBUFS: