Alembic 1.8.11

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StreamManager.h
1//-*****************************************************************************
2//
3// Copyright (c) 2013,
4// Sony Pictures Imageworks Inc. and
5// Industrial Light & Magic, a division of Lucasfilm Entertainment Company Ltd.
6//
7// All rights reserved.
8//
9// Redistribution and use in source and binary forms, with or without
10// modification, are permitted provided that the following conditions are
11// met:
12// * Redistributions of source code must retain the above copyright
13// notice, this list of conditions and the following disclaimer.
14// * Redistributions in binary form must reproduce the above
15// copyright notice, this list of conditions and the following disclaimer
16// in the documentation and/or other materials provided with the
17// distribution.
18// * Neither the name of Sony Pictures Imageworks, nor
19// Industrial Light & Magic, nor the names of their contributors may be used
20// to endorse or promote products derived from this software without specific
21// prior written permission.
22//
23// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
26// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
27// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
28// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
29// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
30// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
31// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
33// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34//
35//-*****************************************************************************
36
37#ifndef Alembic_AbcCoreOgawa_StreamManager_h
38#define Alembic_AbcCoreOgawa_StreamManager_h
39
40#include <Alembic/AbcCoreOgawa/Foundation.h>
41#include <Alembic/Util/Foundation.h>
42
43#include <atomic>
44
45
46 namespace Alembic {
47 namespace AbcCoreOgawa {
48 namespace ALEMBIC_VERSION_NS {
49
50 class StreamID;
51 typedef Alembic::Util::shared_ptr< StreamID > StreamIDPtr;
52
53//-*****************************************************************************
54 class StreamManager : Alembic::Util::noncopyable
55{
56 public:
57 StreamManager( std::size_t iNumStreams );
58 ~StreamManager();
59 StreamIDPtr get();
60 private:
61 friend class StreamID;
62 void put( std::size_t iStreamID );
63
64 std::size_t m_numStreams;
65
66 // for the locked implementation
67 std::vector< std::size_t > m_streamIDs;
68 std::size_t m_curStream;
69 Alembic::Util::mutex m_lock;
70
71 // for the CAS impl
72#if __cplusplus < 201103L && defined( _MSC_VER )
73 Alembic::Util::int64_t m_streams;
74#else
75 std::atomic< Alembic::Util::int64_t > m_streams;
76#endif
77
78 StreamIDPtr m_default;
79};
80
81//-*****************************************************************************
82 class StreamID : Alembic::Util::noncopyable
83{
84 public:
85 ~StreamID();
86 std::size_t getID() { return m_streamID; }
87 private:
88 friend class StreamManager;
89 StreamID( StreamManager * iManager, std::size_t iStreamID );
90 StreamManager * m_manager;
91 std::size_t m_streamID;
92};
93
94
95} // End namespace ALEMBIC_VERSION_NS
96
97 using namespace ALEMBIC_VERSION_NS;
98
99} // End namespace AbcCoreOgawa
100} // End namespace Alembic
101
102#endif
Alembic::AbcCoreOgawa::ALEMBIC_VERSION_NS::StreamID
Definition StreamManager.h:83
Alembic::Util::ALEMBIC_VERSION_NS::mutex
Definition Foundation.h:176
Alembic::Util::ALEMBIC_VERSION_NS::noncopyable
Definition Foundation.h:98
Alembic
Alembic namespace ...
Definition ArchiveInfo.cpp:39