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https://github.com/boostorg/container.git
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33d2f0f7af
- Dlmalloc's based C function are boost_cont_xxx no longer exported, but wrapped into C++ linkage dlmalloc_xxx functions to effectively reuse Boost's dynamic library and autolink machinery instead of rewriting machinery to compile the C source file. - Refactored scoped_allocator_adaptor's construct logic as it was shared with polymorphic allocator's one. Moved common logic to detail/dispatch_uses_allocator.hpp. Refactored also scoped_allocator_adaptor test utilities to be reused with polymorphic_allocator tests.
124 lines
3.8 KiB
C++
124 lines
3.8 KiB
C++
//////////////////////////////////////////////////////////////////////////////
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//
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// (C) Copyright Ion Gaztanaga 2015-2015. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/container for documentation.
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//
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//////////////////////////////////////////////////////////////////////////////
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#define BOOST_CONTAINER_SOURCE
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#include <boost/container/detail/config_begin.hpp>
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#include <boost/container/detail/workaround.hpp>
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#include <boost/container/detail/dlmalloc.hpp>
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#include <boost/container/pmr/synchronized_pool_resource.hpp>
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#include <cstddef>
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namespace {
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using namespace boost::container;
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class dlmalloc_sync_scoped_lock
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{
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void *m_sync;
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public:
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explicit dlmalloc_sync_scoped_lock(void *sync)
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: m_sync(sync)
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{
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if(!dlmalloc_sync_lock(m_sync)){
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throw_bad_alloc();
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}
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}
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~dlmalloc_sync_scoped_lock()
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{
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dlmalloc_sync_unlock(m_sync);
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}
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};
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} //namespace {
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namespace boost {
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namespace container {
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namespace pmr {
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synchronized_pool_resource::synchronized_pool_resource(const pool_options& opts, memory_resource* upstream) BOOST_NOEXCEPT
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: m_pool_resource(opts, upstream), m_opaque_sync()
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{}
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synchronized_pool_resource::synchronized_pool_resource() BOOST_NOEXCEPT
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: m_pool_resource(), m_opaque_sync()
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{}
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synchronized_pool_resource::synchronized_pool_resource(memory_resource* upstream) BOOST_NOEXCEPT
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: m_pool_resource(upstream), m_opaque_sync()
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{}
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synchronized_pool_resource::synchronized_pool_resource(const pool_options& opts) BOOST_NOEXCEPT
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: m_pool_resource(opts), m_opaque_sync()
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{}
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synchronized_pool_resource::~synchronized_pool_resource() //virtual
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{
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if(m_opaque_sync)
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dlmalloc_sync_destroy(m_opaque_sync);
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}
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void synchronized_pool_resource::release()
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{
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if(m_opaque_sync){ //If there is no mutex, no allocation could be done
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m_pool_resource.release();
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}
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}
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memory_resource* synchronized_pool_resource::upstream_resource() const
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{ return m_pool_resource.upstream_resource(); }
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pool_options synchronized_pool_resource::options() const
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{ return m_pool_resource.options(); }
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void* synchronized_pool_resource::do_allocate(std::size_t bytes, std::size_t alignment) //virtual
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{
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if(!m_opaque_sync){ //If there is no mutex, no allocation could be done
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m_opaque_sync = dlmalloc_sync_create();
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if(!m_opaque_sync){
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throw_bad_alloc();
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}
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}
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dlmalloc_sync_scoped_lock lock(m_opaque_sync); (void)lock;
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return m_pool_resource.do_allocate(bytes, alignment);
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}
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void synchronized_pool_resource::do_deallocate(void* p, std::size_t bytes, std::size_t alignment) //virtual
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{
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dlmalloc_sync_scoped_lock lock(m_opaque_sync); (void)lock;
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return m_pool_resource.do_deallocate(p, bytes, alignment);
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}
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bool synchronized_pool_resource::do_is_equal(const memory_resource& other) const BOOST_NOEXCEPT //virtual
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{ return this == dynamic_cast<const synchronized_pool_resource*>(&other); }
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std::size_t synchronized_pool_resource::pool_count() const
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{ return m_pool_resource.pool_count(); }
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std::size_t synchronized_pool_resource::pool_index(std::size_t bytes) const
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{ return m_pool_resource.pool_index(bytes); }
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std::size_t synchronized_pool_resource::pool_next_blocks_per_chunk(std::size_t pool_idx) const
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{ return m_pool_resource.pool_next_blocks_per_chunk(pool_idx); }
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std::size_t synchronized_pool_resource::pool_block(std::size_t pool_idx) const
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{ return m_pool_resource.pool_block(pool_idx); }
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std::size_t synchronized_pool_resource::pool_cached_blocks(std::size_t pool_idx) const
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{ return m_pool_resource.pool_cached_blocks(pool_idx); }
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} //namespace pmr {
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} //namespace container {
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} //namespace boost {
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#include <boost/container/detail/config_end.hpp>
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