[vmkit-commits] [vmkit] r114295 - /vmkit/trunk/lib/Mvm/CommonThread/ctthread.cpp

[Nicolas Geoffray]

Author: geoffray
Date: Sat Sep 18 14:10:35 2010
New Revision: 114295

URL: http://llvm.org/viewvc/llvm-project?rev=114295&view=rev
Log:
Do a yield loop when trying to allocate a thread.


Modified:
    vmkit/trunk/lib/Mvm/CommonThread/ctthread.cpp

Modified: vmkit/trunk/lib/Mvm/CommonThread/ctthread.cpp
URL: http://llvm.org/viewvc/llvm-project/vmkit/trunk/lib/Mvm/CommonThread/ctthread.cpp?rev=114295&r1=114294&r2=114295&view=diff
==============================================================================
--- vmkit/trunk/lib/Mvm/CommonThread/ctthread.cpp (original)
+++ vmkit/trunk/lib/Mvm/CommonThread/ctthread.cpp Sat Sep 18 14:10:35 2010
@@ -7,6 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "debug.h"
+
 #include "MvmGC.h"
 #include "mvm/VirtualMachine.h"
 #include "mvm/Threads/Cond.h"
@@ -336,9 +338,13 @@
   assert(sz < (size_t)getpagesize() && "Thread local data too big");
   void* res = (void*)TheStackManager.allocate();
   // Give it a second chance.
-  if (!res) {
+  if (res == NULL) {
     Collector::collect();
-    res = (void*)TheStackManager.allocate();
+    // Wait for the finalizer to have cleaned up the threads.
+    while (res == NULL) {
+      mvm::Thread::yield();
+      res = (void*)TheStackManager.allocate();
+    }
   }
   return res;
 }