| /* |
| Copyright 2005-2010 Intel Corporation. All Rights Reserved. |
| |
| This file is part of Threading Building Blocks. |
| |
| Threading Building Blocks is free software; you can redistribute it |
| and/or modify it under the terms of the GNU General Public License |
| version 2 as published by the Free Software Foundation. |
| |
| Threading Building Blocks is distributed in the hope that it will be |
| useful, but WITHOUT ANY WARRANTY; without even the implied warranty |
| of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with Threading Building Blocks; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| |
| As a special exception, you may use this file as part of a free software |
| library without restriction. Specifically, if other files instantiate |
| templates or use macros or inline functions from this file, or you compile |
| this file and link it with other files to produce an executable, this |
| file does not by itself cause the resulting executable to be covered by |
| the GNU General Public License. This exception does not however |
| invalidate any other reasons why the executable file might be covered by |
| the GNU General Public License. |
| */ |
| |
| #ifndef _TBB_observer_proxy_H |
| #define _TBB_observer_proxy_H |
| |
| #if __TBB_SCHEDULER_OBSERVER |
| |
| #include "tbb/task_scheduler_observer.h" |
| |
| namespace tbb { |
| namespace internal { |
| |
| class observer_proxy { |
| friend class task_scheduler_observer_v3; |
| //! Reference count used for garbage collection. |
| /** 1 for reference from my task_scheduler_observer. |
| 1 for each local_last_observer_proxy that points to me. |
| No accounting for predecessor in the global list. |
| No accounting for global_last_observer_proxy that points to me. */ |
| atomic<int> gc_ref_count; |
| //! Pointer to next task_scheduler_observer |
| /** Valid even when *this has been removed from the global list. */ |
| observer_proxy* next; |
| //! Pointer to previous task_scheduler_observer in global list. |
| observer_proxy* prev; |
| //! Associated observer |
| task_scheduler_observer* observer; |
| //! Account for removing reference from p. No effect if p is NULL. |
| void remove_ref_slow(); |
| void remove_from_list(); |
| observer_proxy( task_scheduler_observer_v3& wo ); |
| public: |
| static observer_proxy* process_list( observer_proxy* local_last, bool is_worker, bool is_entry ); |
| }; |
| |
| extern observer_proxy* global_last_observer_proxy; |
| |
| } // namespace internal |
| } // namespace tbb |
| |
| #endif /* __TBB_SCHEDULER_OBSERVER */ |
| |
| #endif /* _TBB_observer_proxy_H */ |
