X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=libgc%2Fwin32_threads.c;h=a9569c83f00e4badf914f06ef241abfab210fb42;hb=83569e1ef07325ec30b00d3e2b955718f210e608;hp=d2e97dee7d0b2cec1e1fca50fe6434ace6579daf;hpb=0abc2e6270020edc4a5b4c66f93b4ae582815f20;p=mono.git

diff --git a/libgc/win32_threads.c b/libgc/win32_threads.c
index d2e97dee7d0..a9569c83f00 100644
--- a/libgc/win32_threads.c
+++ b/libgc/win32_threads.c
@@ -1,6 +1,7 @@
+#include "private/gc_priv.h"
+
 #if defined(GC_WIN32_THREADS) 
 
-#include "private/gc_priv.h"
 #include <windows.h>
 
 #ifdef CYGWIN32
@@ -10,6 +11,7 @@
 # undef pthread_create 
 # undef pthread_sigmask 
 # undef pthread_join 
+# undef pthread_detach
 # undef dlopen 
 
 # define DEBUG_CYGWIN_THREADS 0
@@ -72,6 +74,17 @@ volatile LONG GC_max_thread_index = 0; /* Largest index in thread_table	*/
 
 extern LONG WINAPI GC_write_fault_handler(struct _EXCEPTION_POINTERS *exc_info);
 
+int GC_thread_is_registered (void)
+{
+#if defined(GC_DLL) || defined(GC_INSIDE_DLL)
+	/* Registered by DllMain */
+	return 1;
+#else
+	/* FIXME: */
+	return 0;
+#endif
+}
+
 /*
  * This may be called from DllMain, and hence operates under unusual
  * constraints.
@@ -184,7 +197,7 @@ static void GC_delete_thread(DWORD thread_id) {
        /* Must still be in_use, since nobody else can store our thread_id. */
        i++) {}
   if (i > my_max) {
-    WARN("Removing nonexisiting thread %ld\n", (GC_word)thread_id);
+    WARN("Removing nonexistent thread %ld\n", (GC_word)thread_id);
   } else {
     GC_delete_gc_thread(thread_table+i);
   }
@@ -231,6 +244,9 @@ void GC_push_thread_structures GC_PROTO((void))
 # endif
 }
 
+/* Defined in misc.c */
+extern CRITICAL_SECTION GC_write_cs;
+
 void GC_stop_world()
 {
   DWORD thread_id = GetCurrentThreadId();
@@ -239,6 +255,9 @@ void GC_stop_world()
   if (!GC_thr_initialized) ABORT("GC_stop_world() called before GC_thr_init()");
 
   GC_please_stop = TRUE;
+# ifndef CYGWIN32
+    EnterCriticalSection(&GC_write_cs);
+# endif /* !CYGWIN32 */
   for (i = 0; i <= GC_get_max_thread_index(); i++)
     if (thread_table[i].stack_base != 0
 	&& thread_table[i].id != thread_id) {
@@ -264,11 +283,21 @@ void GC_stop_world()
 #         endif
 	  continue;
 	}
-	if (SuspendThread(thread_table[i].handle) == (DWORD)-1)
-	  ABORT("SuspendThread failed");
+	if (SuspendThread(thread_table[i].handle) == (DWORD)-1) {
+          thread_table[i].stack_base = 0; /* prevent stack from being pushed */
+#         ifndef CYGWIN32
+            /* this breaks pthread_join on Cygwin, which is guaranteed to  */
+	    /* only see user pthreads 					   */
+	    thread_table[i].in_use = FALSE;
+	    CloseHandle(thread_table[i].handle);
+#         endif
+	}
 #     endif
       thread_table[i].suspended = TRUE;
     }
+# ifndef CYGWIN32
+    LeaveCriticalSection(&GC_write_cs);
+# endif /* !CYGWIN32 */
 }
 
 void GC_start_world()
@@ -748,7 +777,7 @@ int GC_pthread_detach(pthread_t thread)
  * We avoid acquiring locks here, since this doesn't seem to be preemptable.
  * Pontus Rydin suggests wrapping the thread start routine instead.
  */
-#ifdef GC_DLL
+#if defined(GC_DLL) || defined(GC_INSIDE_DLL)
 BOOL WINAPI DllMain(HINSTANCE inst, ULONG reason, LPVOID reserved)
 {
   switch (reason) {