aterm_implementation.cpp

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// Author(s): Maurice Laveaux
// Copyright: see the accompanying file COPYING or copy at
// https://github.com/mCRL2org/mCRL2/blob/master/COPYING
//
// 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)
//
 
#include "mcrl2/atermpp/aterm_io.h"
#include "mcrl2/atermpp/detail/global_aterm_pool.h"
#include "mcrl2/utilities/shared_mutex.h"
 
using namespace atermpp;
using namespace atermpp::detail;
 
static_assert(sizeof(std::size_t) == sizeof(_aterm*), "The size of an aterm pointer is not equal to the size of type std::size_t. Cannot compile the MCRL2 toolset for this platform.");
static_assert(sizeof(std::size_t) >= 4,"The size of std::size_t should at least be four bytes. Cannot compile the toolset for this platform.");
 
void atermpp::add_deletion_hook(const function_symbol& function, term_callback callback)
{  
  g_term_pool().add_deletion_hook(function, callback);
}
 
namespace atermpp::detail
{
thread_aterm_pool& g_thread_term_pool()
{
#ifdef MCRL2_ENABLE_MULTITHREADING
  static_assert(mcrl2::utilities::detail::GlobalThreadSafe);
  thread_local thread_aterm_pool instance(g_aterm_pool_instance);
#else 
  static_assert(!mcrl2::utilities::detail::GlobalThreadSafe);
  static thread_aterm_pool instance(g_aterm_pool_instance);
#endif
  return instance;
}
 
} // end namespace atermpp::detail
 
aterm_stream::~aterm_stream() {}
 
aterm_istream::~aterm_istream() {}
 
aterm_ostream::~aterm_ostream() {}
 
typename std::aligned_storage<sizeof(aterm_pool), alignof(aterm_pool)>::type atermpp::detail::g_aterm_pool_storage = {};