2 This file is a part of libcds - Concurrent Data Structures library
4 (C) Copyright Maxim Khizhinsky (libcds.dev@gmail.com) 2006-2016
6 Source code repo: http://github.com/khizmax/libcds/
7 Download: http://sourceforge.net/projects/libcds/files/
9 Redistribution and use in source and binary forms, with or without
10 modification, are permitted provided that the following conditions are met:
12 * Redistributions of source code must retain the above copyright notice, this
13 list of conditions and the following disclaimer.
15 * Redistributions in binary form must reproduce the above copyright notice,
16 this list of conditions and the following disclaimer in the documentation
17 and/or other materials provided with the distribution.
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22 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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31 #ifndef CDSLIB_INTRUSIVE_DETAILS_RAW_PTR_DISPOSER_H
32 #define CDSLIB_INTRUSIVE_DETAILS_RAW_PTR_DISPOSER_H
34 #include <cds/details/defs.h>
37 namespace cds { namespace intrusive { namespace details {
39 template <typename RCU, typename NodeType, typename Disposer>
40 struct raw_ptr_disposer
43 typedef NodeType node_type;
44 typedef Disposer disposer;
46 node_type * pReclaimedChain;
49 : pReclaimedChain( nullptr )
52 template <typename Position>
53 explicit raw_ptr_disposer( Position& pos )
54 : pReclaimedChain( pos.pDelChain )
56 pos.pDelChain = nullptr;
59 raw_ptr_disposer( raw_ptr_disposer&& d )
60 : pReclaimedChain( d.pReclaimedChain )
62 d.pReclaimedChain = nullptr;
65 raw_ptr_disposer( raw_ptr_disposer const& ) = delete;
72 raw_ptr_disposer& combine(raw_ptr_disposer&& d)
74 if ( pReclaimedChain == nullptr )
75 pReclaimedChain = d.pReclaimedChain;
76 else if ( d.pReclaimedChain ) {
77 // union reclaimed chains
78 node_type * pEnd = d.pReclaimedChain;
79 for ( ; pEnd->m_pDelChain; pEnd = pEnd->m_pDelChain );
80 pEnd->m_pDelChain = pReclaimedChain;
81 pReclaimedChain = d.pReclaimedChain;
83 d.pReclaimedChain = nullptr;
87 raw_ptr_disposer& operator=(raw_ptr_disposer const& d) = delete;
88 raw_ptr_disposer& operator=( raw_ptr_disposer&& d ) = delete;
92 if ( pReclaimedChain ) {
93 assert( !gc::is_locked());
94 disposer()( pReclaimedChain );
95 pReclaimedChain = nullptr;
100 }}} // namespace cds::intrusive::details
103 #endif // #ifndef CDSLIB_INTRUSIVE_DETAILS_RAW_PTR_DISPOSER_H