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//////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2015-2015. Distributed under the Boost
// Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// See http://www.boost.org/libs/container for documentation.
//
//////////////////////////////////////////////////////////////////////////////
#define BOOST_CONTAINER_SOURCE
#include <boost/container/detail/config_begin.hpp>
#include <boost/container/detail/workaround.hpp>
#include <boost/container/detail/dlmalloc.hpp>
#include <boost/container/pmr/synchronized_pool_resource.hpp>
#include <cstddef>
namespace {
using namespace boost::container;
class dlmalloc_sync_scoped_lock
{
void *m_sync;
public:
explicit dlmalloc_sync_scoped_lock(void *sync)
: m_sync(sync)
{
if(!dlmalloc_sync_lock(m_sync)){
throw_bad_alloc();
}
}
~dlmalloc_sync_scoped_lock()
{
dlmalloc_sync_unlock(m_sync);
}
};
} //namespace {
namespace boost {
namespace container {
namespace pmr {
synchronized_pool_resource::synchronized_pool_resource(const pool_options& opts, memory_resource* upstream) BOOST_NOEXCEPT
: m_pool_resource(opts, upstream), m_opaque_sync()
{}
synchronized_pool_resource::synchronized_pool_resource() BOOST_NOEXCEPT
: m_pool_resource(), m_opaque_sync()
{}
synchronized_pool_resource::synchronized_pool_resource(memory_resource* upstream) BOOST_NOEXCEPT
: m_pool_resource(upstream), m_opaque_sync()
{}
synchronized_pool_resource::synchronized_pool_resource(const pool_options& opts) BOOST_NOEXCEPT
: m_pool_resource(opts), m_opaque_sync()
{}
synchronized_pool_resource::~synchronized_pool_resource() //virtual
{
if(m_opaque_sync)
dlmalloc_sync_destroy(m_opaque_sync);
}
void synchronized_pool_resource::release()
{
if(m_opaque_sync){ //If there is no mutex, no allocation could be done
m_pool_resource.release();
}
}
memory_resource* synchronized_pool_resource::upstream_resource() const
{ return m_pool_resource.upstream_resource(); }
pool_options synchronized_pool_resource::options() const
{ return m_pool_resource.options(); }
void* synchronized_pool_resource::do_allocate(std::size_t bytes, std::size_t alignment) //virtual
{
if(!m_opaque_sync){ //If there is no mutex, no allocation could be done
m_opaque_sync = dlmalloc_sync_create();
if(!m_opaque_sync){
throw_bad_alloc();
}
}
dlmalloc_sync_scoped_lock lock(m_opaque_sync); (void)lock;
return m_pool_resource.do_allocate(bytes, alignment);
}
void synchronized_pool_resource::do_deallocate(void* p, std::size_t bytes, std::size_t alignment) //virtual
{
dlmalloc_sync_scoped_lock lock(m_opaque_sync); (void)lock;
return m_pool_resource.do_deallocate(p, bytes, alignment);
}
bool synchronized_pool_resource::do_is_equal(const memory_resource& other) const BOOST_NOEXCEPT //virtual
{ return this == dynamic_cast<const synchronized_pool_resource*>(&other); }
std::size_t synchronized_pool_resource::pool_count() const
{ return m_pool_resource.pool_count(); }
std::size_t synchronized_pool_resource::pool_index(std::size_t bytes) const
{ return m_pool_resource.pool_index(bytes); }
std::size_t synchronized_pool_resource::pool_next_blocks_per_chunk(std::size_t pool_idx) const
{ return m_pool_resource.pool_next_blocks_per_chunk(pool_idx); }
std::size_t synchronized_pool_resource::pool_block(std::size_t pool_idx) const
{ return m_pool_resource.pool_block(pool_idx); }
std::size_t synchronized_pool_resource::pool_cached_blocks(std::size_t pool_idx) const
{ return m_pool_resource.pool_cached_blocks(pool_idx); }
} //namespace pmr {
} //namespace container {
} //namespace boost {
#include <boost/container/detail/config_end.hpp>
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