Version 3.16.12
Performance and stability improvements on all platforms.
git-svn-id: http://v8.googlecode.com/svn/trunk@13573 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/sweeper-thread.h b/src/sweeper-thread.h
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+// Copyright 2012 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following
+// disclaimer in the documentation and/or other materials provided
+// with the distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef V8_SWEEPER_THREAD_H_
+#define V8_SWEEPER_THREAD_H_
+
+#include "atomicops.h"
+#include "flags.h"
+#include "platform.h"
+#include "v8utils.h"
+
+#include "spaces.h"
+
+#include "heap.h"
+
+namespace v8 {
+namespace internal {
+
+class SweeperThread : public Thread {
+ public:
+ explicit SweeperThread(Isolate* isolate);
+
+ void Run();
+ void Stop();
+ void StartSweeping();
+ void WaitForSweeperThread();
+ intptr_t StealMemory(PagedSpace* space);
+
+ static bool sweeping_pending() { return sweeping_pending_; }
+ static void set_sweeping_pending(bool sweeping_pending) {
+ sweeping_pending_ = sweeping_pending;
+ }
+
+ ~SweeperThread() {
+ delete start_sweeping_semaphore_;
+ delete end_sweeping_semaphore_;
+ delete stop_semaphore_;
+ }
+
+ private:
+ Isolate* isolate_;
+ Heap* heap_;
+ MarkCompactCollector* collector_;
+ Semaphore* start_sweeping_semaphore_;
+ Semaphore* end_sweeping_semaphore_;
+ Semaphore* stop_semaphore_;
+ FreeList free_list_old_data_space_;
+ FreeList free_list_old_pointer_space_;
+ FreeList private_free_list_old_data_space_;
+ FreeList private_free_list_old_pointer_space_;
+ volatile AtomicWord stop_thread_;
+ static bool sweeping_pending_;
+};
+
+} } // namespace v8::internal
+
+#endif // V8_SWEEPER_THREAD_H_