| // Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| #ifndef RUNTIME_VM_THREAD_REGISTRY_H_ |
| #define RUNTIME_VM_THREAD_REGISTRY_H_ |
| |
| #include "vm/globals.h" |
| #include "vm/growable_array.h" |
| #include "vm/isolate.h" |
| #include "vm/lockers.h" |
| #include "vm/stack_frame.h" |
| #include "vm/thread.h" |
| |
| namespace dart { |
| |
| #ifndef PRODUCT |
| class JSONStream; |
| class JSONArray; |
| #endif |
| |
| // Unordered collection of threads relating to a particular isolate. |
| class ThreadRegistry { |
| public: |
| ThreadRegistry() : threads_lock_(), active_list_(NULL), free_list_(NULL) {} |
| ~ThreadRegistry(); |
| |
| void VisitObjectPointers(IsolateGroup* isolate_group_of_interest, |
| ObjectPointerVisitor* visitor, |
| ValidationPolicy validate_frames); |
| |
| void ReleaseStoreBuffers(); |
| void AcquireMarkingStacks(); |
| void ReleaseMarkingStacks(); |
| |
| #ifndef PRODUCT |
| void PrintJSON(JSONStream* stream) const; |
| #endif |
| |
| intptr_t CountZoneHandles(Isolate* isolate_of_interest) const; |
| intptr_t CountScopedHandles(Isolate* isolate_of_interest) const; |
| |
| private: |
| Thread* active_list() const { return active_list_; } |
| Monitor* threads_lock() const { return &threads_lock_; } |
| |
| Thread* GetFreeThreadLocked(bool is_vm_isolate); |
| void ReturnThreadLocked(Thread* thread); |
| void AddToActiveListLocked(Thread* thread); |
| void RemoveFromActiveListLocked(Thread* thread); |
| Thread* GetFromFreelistLocked(bool is_vm_isolate); |
| void ReturnToFreelistLocked(Thread* thread); |
| |
| // This monitor protects the threads list for an isolate, it is used whenever |
| // we need to iterate over threads (both active and free) in an isolate. |
| mutable Monitor threads_lock_; |
| Thread* active_list_; // List of active threads in the isolate. |
| Thread* free_list_; // Free list of Thread objects that can be reused. |
| |
| friend class Isolate; |
| friend class IsolateGroup; |
| friend class SafepointHandler; |
| friend class Scavenger; |
| DISALLOW_COPY_AND_ASSIGN(ThreadRegistry); |
| }; |
| |
| } // namespace dart |
| |
| #endif // RUNTIME_VM_THREAD_REGISTRY_H_ |