Update NSPR to 4.18

14 files changed, 243 insertions, 205 deletions

diff --git a/nsprpub/pr/src/Makefile.in b/nsprpub/pr/src/Makefile.in
index 48b6faed7..19c5a6987 100644
--- a/nsprpub/pr/src/Makefile.in
+++ b/nsprpub/pr/src/Makefile.in
@@ -138,12 +138,8 @@ endif
 
 ifeq ($(OS_ARCH),HP-UX)
 ifeq ($(USE_PTHREADS), 1)
-ifeq (,$(filter-out B.10.10 B.10.20,$(OS_RELEASE)))
-OS_LIBS 	= -ldce
-else
 OS_LIBS 	= -lpthread -lrt
 endif
-endif
 ifeq ($(PTHREADS_USER), 1)
 OS_LIBS 	= -lpthread
 endif
diff --git a/nsprpub/pr/src/io/prio.c b/nsprpub/pr/src/io/prio.c
index bf9763a2c..10ae5e098 100644
--- a/nsprpub/pr/src/io/prio.c
+++ b/nsprpub/pr/src/io/prio.c
@@ -137,11 +137,82 @@ PR_IMPLEMENT(void) PR_FreeFileDesc(PRFileDesc *fd)
     _PR_Putfd(fd);
 }
 
+#if defined(_WIN64) && defined(WIN95)
+
+PRFileDescList *_fd_waiting_for_overlapped_done = NULL;
+PRLock *_fd_waiting_for_overlapped_done_lock = NULL;
+
+void CheckOverlappedPendingSocketsAreDone()
+{
+  if (!_fd_waiting_for_overlapped_done_lock ||
+      !_fd_waiting_for_overlapped_done) {
+    return;
+  }
+
+  PR_Lock(_fd_waiting_for_overlapped_done_lock);
+
+  PRFileDescList *cur = _fd_waiting_for_overlapped_done;
+  PRFileDescList *previous = NULL;
+  while (cur) {
+    PR_ASSERT(cur->fd->secret->overlappedActive);
+    PRFileDesc *fd = cur->fd;
+    DWORD rvSent;
+    if (GetOverlappedResult((HANDLE)fd->secret->md.osfd, &fd->secret->ol, &rvSent, FALSE) == TRUE) {
+      fd->secret->overlappedActive = PR_FALSE;
+      PR_LOG(_pr_io_lm, PR_LOG_MIN,
+             ("CheckOverlappedPendingSocketsAreDone GetOverlappedResult succeeded\n"));
+    } else {
+      DWORD err = WSAGetLastError();
+      PR_LOG(_pr_io_lm, PR_LOG_MIN,
+             ("CheckOverlappedPendingSocketsAreDone GetOverlappedResult failed %d\n", err));
+      if (err != ERROR_IO_INCOMPLETE) {
+        fd->secret->overlappedActive = PR_FALSE;
+      }
+    }
+
+    if (!fd->secret->overlappedActive) {
+
+      _PR_MD_CLOSE_SOCKET(fd->secret->md.osfd);
+      fd->secret->state = _PR_FILEDESC_CLOSED;
+#ifdef _PR_HAVE_PEEK_BUFFER
+      if (fd->secret->peekBuffer) {
+        PR_ASSERT(fd->secret->peekBufSize > 0);
+        PR_DELETE(fd->secret->peekBuffer);
+        fd->secret->peekBufSize = 0;
+        fd->secret->peekBytes = 0;
+      }
+#endif
+
+      PR_FreeFileDesc(fd);
+
+      if (previous) {
+        previous->next = cur->next;
+      } else {
+        _fd_waiting_for_overlapped_done = cur->next;
+      }
+      PRFileDescList *del = cur;
+      cur = cur->next;
+      PR_Free(del);
+    } else {
+      previous = cur;
+      cur = cur->next;
+    }
+  }
+
+  PR_Unlock(_fd_waiting_for_overlapped_done_lock);
+}
+#endif
+
 /*
 ** Wait for some i/o to finish on one or more more poll descriptors.
 */
 PR_IMPLEMENT(PRInt32) PR_Poll(PRPollDesc *pds, PRIntn npds, PRIntervalTime timeout)
 {
+#if defined(_WIN64) && defined(WIN95)
+  // For each iteration check if TFO overlapped IOs are down.
+  CheckOverlappedPendingSocketsAreDone();
+#endif
+
 	return(_PR_MD_PR_POLL(pds, npds, timeout));
 }
 
diff --git a/nsprpub/pr/src/io/prsocket.c b/nsprpub/pr/src/io/prsocket.c
index a24b8e1bb..26f7a245d 100644
--- a/nsprpub/pr/src/io/prsocket.c
+++ b/nsprpub/pr/src/io/prsocket.c
@@ -304,7 +304,25 @@ static PRStatus PR_CALLBACK SocketConnectContinue(
         if (err != 0) {
             _PR_MD_MAP_CONNECT_ERROR(err);
         } else {
+#if defined(_WIN64)
+            if (fd->secret->overlappedActive) {
+                PRInt32 rvSent;
+                if (GetOverlappedResult(osfd, &fd->secret->ol, &rvSent, FALSE) == FALSE) {
+                    err = WSAGetLastError();
+                    PR_LOG(_pr_io_lm, PR_LOG_MIN,
+                           ("SocketConnectContinue GetOverlappedResult failed %d\n", err));
+                    if (err != ERROR_IO_INCOMPLETE) {
+                        _PR_MD_MAP_CONNECT_ERROR(err);
+                        fd->secret->overlappedActive = PR_FALSE;
+                    }
+                }
+            }
+            if (err == 0) {
+                PR_SetError(PR_UNKNOWN_ERROR, 0);
+            }
+#else
             PR_SetError(PR_UNKNOWN_ERROR, 0);
+#endif
         }
         return PR_FAILURE;
     }
@@ -719,6 +737,56 @@ static PRStatus PR_CALLBACK SocketClose(PRFileDesc *fd)
 	}
 
 	if (fd->secret->state == _PR_FILEDESC_OPEN) {
+#if defined(_WIN64) && defined(WIN95)
+    /* TCP Fast Open on Windows must use ConnectEx, which uses overlapped
+     * input/output. Before closing such a socket we must cancelIO.
+     */
+    if (fd->secret->overlappedActive) {
+      PR_ASSERT(fd->secret->nonblocking);
+      if (CancelIo((HANDLE) fd->secret->md.osfd) == TRUE) {
+        PR_LOG(_pr_io_lm, PR_LOG_MIN,
+               ("SocketClose - CancelIo succeeded\n"));
+      } else {
+        DWORD err = WSAGetLastError();
+        PR_LOG(_pr_io_lm, PR_LOG_MIN,
+               ("SocketClose - CancelIo failed err=%x\n", err));
+      }
+
+      DWORD rvSent;
+      if (GetOverlappedResult((HANDLE)fd->secret->md.osfd, &fd->secret->ol, &rvSent, FALSE) == TRUE) {
+        fd->secret->overlappedActive = PR_FALSE;
+        PR_LOG(_pr_io_lm, PR_LOG_MIN,
+               ("SocketClose GetOverlappedResult succeeded\n"));
+      } else {
+        DWORD err = WSAGetLastError();
+        PR_LOG(_pr_io_lm, PR_LOG_MIN,
+               ("SocketClose GetOverlappedResult failed %d\n", err));
+        if (err != ERROR_IO_INCOMPLETE) {
+          _PR_MD_MAP_CONNECT_ERROR(err);
+          fd->secret->overlappedActive = PR_FALSE;
+        }
+      }
+    }
+
+    if (fd->secret->overlappedActive &&
+        _fd_waiting_for_overlapped_done_lock) {
+      // Put osfd into the list to be checked later.
+      PRFileDescList *forWaiting = PR_NEW(PRFileDescList);
+      if (!forWaiting) {
+        PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
+        return PR_FAILURE;
+      }
+      forWaiting->fd = fd;
+
+      PR_Lock(_fd_waiting_for_overlapped_done_lock);
+      forWaiting->next = _fd_waiting_for_overlapped_done;
+      _fd_waiting_for_overlapped_done = forWaiting;
+      PR_Unlock(_fd_waiting_for_overlapped_done_lock);
+
+      return PR_SUCCESS;
+    }
+#endif
+
 		if (_PR_MD_CLOSE_SOCKET(fd->secret->md.osfd) < 0) {
 			return PR_FAILURE;
 		}
diff --git a/nsprpub/pr/src/md/unix/unix.c b/nsprpub/pr/src/md/unix/unix.c
index 662f561b6..29e24e574 100644
--- a/nsprpub/pr/src/md/unix/unix.c
+++ b/nsprpub/pr/src/md/unix/unix.c
@@ -2854,28 +2854,11 @@ 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 5286b9e18..18f23fde8 100644
--- a/nsprpub/pr/src/md/unix/uxproces.c
+++ b/nsprpub/pr/src/md/unix/uxproces.c
@@ -685,10 +685,6 @@ 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 fead1236d..1fdf0e93b 100644
--- a/nsprpub/pr/src/md/windows/ntthread.c
+++ b/nsprpub/pr/src/md/windows/ntthread.c
@@ -27,6 +27,9 @@ 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 \
@@ -79,6 +82,8 @@ _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);
@@ -98,6 +103,15 @@ _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)
@@ -293,7 +307,16 @@ _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;
 
diff --git a/nsprpub/pr/src/md/windows/w95sock.c b/nsprpub/pr/src/md/windows/w95sock.c
index 0429c655a..c6a3ec111 100644
--- a/nsprpub/pr/src/md/windows/w95sock.c
+++ b/nsprpub/pr/src/md/windows/w95sock.c
@@ -382,6 +382,11 @@ 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 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;
 
diff --git a/nsprpub/pr/src/md/windows/win32_errors.c b/nsprpub/pr/src/md/windows/win32_errors.c
index d26820a7a..275792187 100644
--- a/nsprpub/pr/src/md/windows/win32_errors.c
+++ b/nsprpub/pr/src/md/windows/win32_errors.c
@@ -166,21 +166,26 @@ 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:
@@ -193,6 +198,7 @@ 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:
@@ -208,12 +214,14 @@ 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:
diff --git a/nsprpub/pr/src/misc/pratom.c b/nsprpub/pr/src/misc/pratom.c
index 95bbee1d5..65e6f3cd8 100644
--- a/nsprpub/pr/src/misc/pratom.c
+++ b/nsprpub/pr/src/misc/pratom.c
@@ -23,7 +23,7 @@
 
 #if !defined(_PR_HAVE_ATOMIC_OPS)
 
-#if defined(_PR_PTHREADS) && !defined(_PR_DCETHREADS)
+#if defined(_PR_PTHREADS)
 /*
  * PR_AtomicDecrement() is used in NSPR's thread-specific data
  * destructor.  Because thread-specific data destructors may be
@@ -190,7 +190,7 @@ _PR_MD_ATOMIC_SET(PRInt32 *val, PRInt32 newval)
     pthread_mutex_unlock(&atomic_locks[idx]);
     return rv;
 }
-#else  /* _PR_PTHREADS && !_PR_DCETHREADS */
+#else  /* _PR_PTHREADS */
 /*
  * We use a single lock for all the emulated atomic operations.
  * The lock contention should be acceptable.
@@ -259,7 +259,7 @@ _PR_MD_ATOMIC_SET(PRInt32 *val, PRInt32 newval)
     PR_Unlock(atomic_lock);
     return rv;
 }
-#endif  /* _PR_PTHREADS && !_PR_DCETHREADS */
+#endif  /* _PR_PTHREADS */
 
 #endif  /* !_PR_HAVE_ATOMIC_OPS */
 
diff --git a/nsprpub/pr/src/pthreads/ptio.c b/nsprpub/pr/src/pthreads/ptio.c
index 9dde03191..f6aa56741 100644
--- a/nsprpub/pr/src/pthreads/ptio.c
+++ b/nsprpub/pr/src/pthreads/ptio.c
@@ -1895,19 +1895,6 @@ static PRInt32 pt_Send(
 	PRInt32 tmp_amount = amount;
 #endif
 
-    /*
-     * Under HP-UX DCE threads, pthread.h includes dce/cma_ux.h,
-     * which has the following:
-     *     #  define send        cma_send
-     *     extern int  cma_send (int , void *, int, int );
-     * So we need to cast away the 'const' of argument #2 for send().
-     */
-#if defined (HPUX) && defined(_PR_DCETHREADS)
-#define PT_SENDBUF_CAST (void *)
-#else
-#define PT_SENDBUF_CAST
-#endif
-
     if (pt_TestAbort()) return bytes;
 
     /*
@@ -1918,9 +1905,9 @@ static PRInt32 pt_Send(
 #if defined(SOLARIS)
     PR_ASSERT(0 == flags);
 retry:
-    bytes = write(fd->secret->md.osfd, PT_SENDBUF_CAST buf, tmp_amount);
+    bytes = write(fd->secret->md.osfd, buf, tmp_amount);
 #else
-    bytes = send(fd->secret->md.osfd, PT_SENDBUF_CAST buf, amount, flags);
+    bytes = send(fd->secret->md.osfd, buf, amount, flags);
 #endif
     syserrno = errno;
 
diff --git a/nsprpub/pr/src/pthreads/ptsynch.c b/nsprpub/pr/src/pthreads/ptsynch.c
index 251205336..a93b74795 100644
--- a/nsprpub/pr/src/pthreads/ptsynch.c
+++ b/nsprpub/pr/src/pthreads/ptsynch.c
@@ -23,11 +23,6 @@ static pthread_condattr_t _pt_cvar_attr;
 
 #if defined(DEBUG)
 extern PTDebug pt_debug;  /* this is shared between several modules */
-
-#if defined(_PR_DCETHREADS)
-static pthread_t pt_zero_tid;  /* a null pthread_t (pthread_t is a struct
-                                * in DCE threads) to compare with */
-#endif  /* defined(_PR_DCETHREADS) */
 #endif  /* defined(DEBUG) */
 
 #if defined(FREEBSD)
@@ -263,12 +258,7 @@ static PRIntn pt_TimedWait(
     rv = pthread_cond_timedwait(cv, ml, &tmo);
 
     /* NSPR doesn't report timeouts */
-#ifdef _PR_DCETHREADS
-    if (rv == -1) return (errno == EAGAIN) ? 0 : errno;
-    else return rv;
-#else
     return (rv == ETIMEDOUT) ? 0 : rv;
-#endif
 }  /* pt_TimedWait */
 
 
@@ -1171,14 +1161,14 @@ PR_IMPLEMENT(PRStatus) PR_DeleteSemaphore(const char *name)
 PR_IMPLEMENT(PRStatus) PRP_TryLock(PRLock *lock)
 {
     PRIntn rv = pthread_mutex_trylock(&lock->mutex);
-    if (rv == PT_TRYLOCK_SUCCESS)
+    if (rv == 0)
     {
         PR_ASSERT(PR_FALSE == lock->locked);
         lock->locked = PR_TRUE;
         lock->owner = pthread_self();
     }
     /* XXX set error code? */
-    return (PT_TRYLOCK_SUCCESS == rv) ? PR_SUCCESS : PR_FAILURE;
+    return (0 == rv) ? PR_SUCCESS : PR_FAILURE;
 }  /* PRP_TryLock */
 
 PR_IMPLEMENT(PRCondVar*) PRP_NewNakedCondVar(void)
diff --git a/nsprpub/pr/src/pthreads/ptthread.c b/nsprpub/pr/src/pthreads/ptthread.c
index 9e12606ea..6046d5d8d 100644
--- a/nsprpub/pr/src/pthreads/ptthread.c
+++ b/nsprpub/pr/src/pthreads/ptthread.c
@@ -9,7 +9,7 @@
 ** Exports:            ptthread.h
 */
 
-#if defined(_PR_PTHREADS) || defined(_PR_DCETHREADS)
+#if defined(_PR_PTHREADS)
 
 #include "prlog.h"
 #include "primpl.h"
@@ -58,7 +58,7 @@ static struct _PT_Bookeeping
     pthread_key_t key;          /* thread private data key */
     PRBool keyCreated;          /* whether 'key' should be deleted */
     PRThread *first, *last;     /* list of threads we know about */
-#if defined(_PR_DCETHREADS) || _POSIX_THREAD_PRIORITY_SCHEDULING > 0
+#if _POSIX_THREAD_PRIORITY_SCHEDULING > 0
     PRInt32 minPrio, maxPrio;   /* range of scheduling priorities */
 #endif
 } pt_book = {0};
@@ -67,7 +67,7 @@ static void _pt_thread_death(void *arg);
 static void _pt_thread_death_internal(void *arg, PRBool callDestructors);
 static void init_pthread_gc_support(void);
 
-#if defined(_PR_DCETHREADS) || _POSIX_THREAD_PRIORITY_SCHEDULING > 0
+#if _POSIX_THREAD_PRIORITY_SCHEDULING > 0
 static PRIntn pt_PriorityMap(PRThreadPriority pri)
 {
 #ifdef NTO
@@ -148,21 +148,6 @@ static void *_pt_root(void *arg)
     }
 #endif
 
-    /*
-    ** DCE Threads can't detach during creation, so do it late.
-    ** I would like to do it only here, but that doesn't seem
-    ** to work.
-    */
-#if defined(_PR_DCETHREADS)
-    if (detached)
-    {
-        /* pthread_detach() modifies its argument, so we must pass a copy */
-        pthread_t self = id;
-        rv = pthread_detach(&self);
-        PR_ASSERT(0 == rv);
-    }
-#endif /* defined(_PR_DCETHREADS) */
-
     /* Set up the thread stack information */
     _PR_InitializeStack(thred->stack);
 
@@ -329,7 +314,7 @@ static PRThread* _PR_CreateThread(
 
     if (EPERM != pt_schedpriv)
     {
-#if !defined(_PR_DCETHREADS) && _POSIX_THREAD_PRIORITY_SCHEDULING > 0
+#if _POSIX_THREAD_PRIORITY_SCHEDULING > 0
         struct sched_param schedule;
 #endif
 
@@ -340,10 +325,7 @@ static PRThread* _PR_CreateThread(
 
         /* Use the default scheduling policy */
 
-#if defined(_PR_DCETHREADS)
-        rv = pthread_attr_setprio(&tattr, pt_PriorityMap(priority));
-        PR_ASSERT(0 == rv);
-#elif _POSIX_THREAD_PRIORITY_SCHEDULING > 0
+#if _POSIX_THREAD_PRIORITY_SCHEDULING > 0
         rv = pthread_attr_getschedparam(&tattr, &schedule);
         PR_ASSERT(0 == rv);
         schedule.sched_priority = pt_PriorityMap(priority);
@@ -353,19 +335,13 @@ static PRThread* _PR_CreateThread(
         rv = pthread_attr_setschedpolicy(&tattr, SCHED_RR); /* Round Robin */
         PR_ASSERT(0 == rv);
 #endif
-#endif /* !defined(_PR_DCETHREADS) */
+#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING > 0 */
     }
 
-    /*
-     * DCE threads can't set detach state before creating the thread.
-     * AIX can't set detach late. Why can't we all just get along?
-     */
-#if !defined(_PR_DCETHREADS)
     rv = pthread_attr_setdetachstate(&tattr,
         ((PR_JOINABLE_THREAD == state) ?
             PTHREAD_CREATE_JOINABLE : PTHREAD_CREATE_DETACHED));
     PR_ASSERT(0 == rv);
-#endif /* !defined(_PR_DCETHREADS) */
 
     /*
      * If stackSize is 0, we use the default pthread stack size.
@@ -456,7 +432,6 @@ static PRThread* _PR_CreateThread(
          */
         rv = _PT_PTHREAD_CREATE(&id, tattr, _pt_root, thred);
 
-#if !defined(_PR_DCETHREADS)
         if (EPERM == rv)
         {
 #if defined(IRIX)
@@ -482,15 +457,10 @@ static PRThread* _PR_CreateThread(
 #endif	/* IRIX */
             rv = _PT_PTHREAD_CREATE(&id, tattr, _pt_root, thred);
         }
-#endif
 
         if (0 != rv)
         {
-#if defined(_PR_DCETHREADS)
-            PRIntn oserr = errno;
-#else
             PRIntn oserr = rv;
-#endif
             PR_Lock(pt_book.ml);
             if (thred->state & PT_THREAD_SYSTEM)
                 pt_book.system -= 1;
@@ -602,10 +572,6 @@ PR_IMPLEMENT(PRStatus) PR_JoinThread(PRThread *thred)
         PR_ASSERT(rv == 0 && result == NULL);
         if (0 == rv)
         {
-#ifdef _PR_DCETHREADS
-            rv = pthread_detach(&id);
-            PR_ASSERT(0 == rv);
-#endif
             /*
              * PR_FALSE, because the thread already called the TPD
              * destructors before exiting _pt_root.
@@ -693,10 +659,7 @@ PR_IMPLEMENT(void) PR_SetThreadPriority(PRThread *thred, PRThreadPriority newPri
     else if ((PRIntn)PR_PRIORITY_LAST < (PRIntn)newPri)
         newPri = PR_PRIORITY_LAST;
 
-#if defined(_PR_DCETHREADS)
-    rv = pthread_setprio(thred->id, pt_PriorityMap(newPri));
-    /* pthread_setprio returns the old priority */
-#elif _POSIX_THREAD_PRIORITY_SCHEDULING > 0
+#if _POSIX_THREAD_PRIORITY_SCHEDULING > 0
     if (EPERM != pt_schedpriv)
     {
         int policy;
@@ -927,7 +890,7 @@ void _PR_InitThreads(
     pthread_init();
 #endif
 
-#if defined(_PR_DCETHREADS) || _POSIX_THREAD_PRIORITY_SCHEDULING > 0
+#if _POSIX_THREAD_PRIORITY_SCHEDULING > 0
 #if defined(FREEBSD)
     {
     pthread_attr_t attr;
@@ -1161,11 +1124,7 @@ PR_IMPLEMENT(void) PR_ProcessExit(PRIntn status)
 
 PR_IMPLEMENT(PRUint32) PR_GetThreadID(PRThread *thred)
 {
-#if defined(_PR_DCETHREADS)
-    return (PRUint32)&thred->id;  /* this is really a sham! */
-#else
     return (PRUint32)thred->id;  /* and I don't know what they will do with it */
-#endif
 }
 
 /*
@@ -1197,18 +1156,6 @@ PR_SetThreadDumpProc(PRThread* thread, PRThreadDumpProc dump, void *arg)
  * Garbage collection support follows.
  */
 
-#if defined(_PR_DCETHREADS)
-
-/*
- * statics for Garbage Collection support.  We don't need to protect these
- * signal masks since the garbage collector itself is protected by a lock
- * and multiple threads will not be garbage collecting at the same time.
- */
-static sigset_t javagc_vtalarm_sigmask;
-static sigset_t javagc_intsoff_sigmask;
-
-#else /* defined(_PR_DCETHREADS) */
-
 /* a bogus signal mask for forcing a timed wait */
 /* Not so bogus in AIX as we really do a sigwait */
 static sigset_t sigwait_set;
@@ -1224,8 +1171,6 @@ static void suspend_signal_handler(PRIntn sig);
 static void null_signal_handler(PRIntn sig);
 #endif
 
-#endif /* defined(_PR_DCETHREADS) */
-
 /*
  * Linux pthreads use SIGUSR1 and SIGUSR2 internally, which
  * conflict with the use of these two signals in our GC support.
@@ -1236,12 +1181,6 @@ static void init_pthread_gc_support(void)
 #ifndef SYMBIAN
     PRIntn rv;
 
-#if defined(_PR_DCETHREADS)
-	rv = sigemptyset(&javagc_vtalarm_sigmask);
-    PR_ASSERT(0 == rv);
-	rv = sigaddset(&javagc_vtalarm_sigmask, SIGVTALRM);
-    PR_ASSERT(0 == rv);
-#else  /* defined(_PR_DCETHREADS) */
 	{
 	    struct sigaction sigact_usr2;
 
@@ -1269,7 +1208,6 @@ static void init_pthread_gc_support(void)
 	    PR_ASSERT(0 ==rv); 
     }
 #endif  /* defined(PT_NO_SIGTIMEDWAIT) */
-#endif /* defined(_PR_DCETHREADS) */
 #endif /* SYMBIAN */
 }
 
@@ -1300,10 +1238,8 @@ PR_IMPLEMENT(PRStatus) PR_EnumerateThreads(PREnumerator func, void *arg)
     PRThread* thred = pt_book.first;
 
 #if defined(DEBUG) || defined(FORCE_PR_ASSERT)
-#if !defined(_PR_DCETHREADS)
     PRThread *me = PR_GetCurrentThread();
 #endif
-#endif
 
     PR_LOG(_pr_gc_lm, PR_LOG_ALWAYS, ("Begin PR_EnumerateThreads\n"));
     /*
@@ -1331,9 +1267,7 @@ PR_IMPLEMENT(PRStatus) PR_EnumerateThreads(PREnumerator func, void *arg)
 
         if (_PT_IS_GCABLE_THREAD(thred))
         {
-#if !defined(_PR_DCETHREADS)
             PR_ASSERT((thred == me) || (thred->suspend & PT_THREAD_SUSPENDED));
-#endif
             PR_LOG(_pr_gc_lm, PR_LOG_ALWAYS, 
                    ("In PR_EnumerateThreads callback thread %p thid = %X\n", 
                     thred, thred->id));
@@ -1361,8 +1295,6 @@ PR_IMPLEMENT(PRStatus) PR_EnumerateThreads(PREnumerator func, void *arg)
  * proceed until the thread is suspended or resumed.
  */
 
-#if !defined(_PR_DCETHREADS)
-
 /*
  * In the signal handler, we can not use condition variable notify or wait.
  * This does not work consistently across all pthread platforms.  We also can not 
@@ -1661,78 +1593,6 @@ PR_IMPLEMENT(void *)PR_GetSP(PRThread *thred)
     return thred->sp;
 }  /* PR_GetSP */
 
-#else /* !defined(_PR_DCETHREADS) */
-
-static pthread_once_t pt_gc_support_control = pthread_once_init;
-
-/*
- * For DCE threads, there is no pthread_kill or a way of suspending or resuming a
- * particular thread.  We will just disable the preemption (virtual timer alarm) and
- * let the executing thread finish the garbage collection.  This stops all other threads
- * (GC able or not) and is very inefficient but there is no other choice.
- */
-PR_IMPLEMENT(void) PR_SuspendAll()
-{
-    PRIntn rv;
-
-    rv = pthread_once(&pt_gc_support_control, init_pthread_gc_support);
-    PR_ASSERT(0 == rv);  /* returns -1 on failure */
-#ifdef DEBUG
-    suspendAllOn = PR_TRUE;
-#endif
-    PR_LOG(_pr_gc_lm, PR_LOG_ALWAYS, ("Begin PR_SuspendAll\n"));
-    /* 
-     * turn off preemption - i.e add virtual alarm signal to the set of 
-     * blocking signals 
-     */
-    rv = sigprocmask(
-        SIG_BLOCK, &javagc_vtalarm_sigmask, &javagc_intsoff_sigmask);
-    PR_ASSERT(0 == rv);
-    suspendAllSuspended = PR_TRUE;
-    PR_LOG(_pr_gc_lm, PR_LOG_ALWAYS, ("End PR_SuspendAll\n"));
-}  /* PR_SuspendAll */
-
-PR_IMPLEMENT(void) PR_ResumeAll()
-{
-    PRIntn rv;
-    
-    suspendAllSuspended = PR_FALSE;
-    PR_LOG(_pr_gc_lm, PR_LOG_ALWAYS, ("Begin PR_ResumeAll\n"));
-    /* turn on preemption - i.e re-enable virtual alarm signal */
-
-    rv = sigprocmask(SIG_SETMASK, &javagc_intsoff_sigmask, (sigset_t *)NULL);
-    PR_ASSERT(0 == rv);
-#ifdef DEBUG
-    suspendAllOn = PR_FALSE;
-#endif
-
-    PR_LOG(_pr_gc_lm, PR_LOG_ALWAYS, ("End PR_ResumeAll\n"));
-}  /* PR_ResumeAll */
-
-/* Return the stack pointer for the given thread- used by the GC */
-PR_IMPLEMENT(void*)PR_GetSP(PRThread *thred)
-{
-	pthread_t tid = thred->id;
-	char *thread_tcb, *top_sp;
-
-	/*
-	 * For HPUX DCE threads, pthread_t is a struct with the
-	 * following three fields (see pthread.h, dce/cma.h):
-	 *     cma_t_address       field1;
-	 *     short int           field2;
-	 *     short int           field3;
-	 * where cma_t_address is typedef'd to be either void*
-	 * or char*.
-	 */
-	PR_LOG(_pr_gc_lm, PR_LOG_ALWAYS, ("Begin PR_GetSP\n"));
-	thread_tcb = (char*)tid.field1;
-	top_sp = *(char**)(thread_tcb + 128);
-	PR_LOG(_pr_gc_lm, PR_LOG_ALWAYS, ("End PR_GetSP %p \n", top_sp));
-	return top_sp;
-}  /* PR_GetSP */
-
-#endif /* !defined(_PR_DCETHREADS) */
-
 PR_IMPLEMENT(PRStatus) PR_SetCurrentThreadName(const char *name)
 {
     PRThread *thread;
@@ -1817,6 +1677,6 @@ PR_IMPLEMENT(const char *) PR_GetThreadName(const PRThread *thread)
     return thread->name;
 }
 
-#endif  /* defined(_PR_PTHREADS) || defined(_PR_DCETHREADS) */
+#endif  /* defined(_PR_PTHREADS) */
 
 /* ptthread.c */
diff --git a/nsprpub/pr/src/threads/prrwlock.c b/nsprpub/pr/src/threads/prrwlock.c
index 2e0f9ea4e..1dd9e0a90 100644
--- a/nsprpub/pr/src/threads/prrwlock.c
+++ b/nsprpub/pr/src/threads/prrwlock.c
@@ -7,7 +7,7 @@
 
 #include <string.h>
 
-#if defined(HPUX) && defined(_PR_PTHREADS) && !defined(_PR_DCETHREADS)
+#if defined(HPUX) && defined(_PR_PTHREADS)
 
 #include <pthread.h>
 #define HAVE_UNIX98_RWLOCK