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/****
* memory.h
*
* Interface to the Boehm Garbage Collector.
*****/
#ifndef MEMORY_H
#define MEMORY_H
#include <list>
#include <vector>
#include <stack>
#include <map>
#include <string>
#include <sstream>
#ifndef NOHASH
#ifdef HAVE_UNORDERED_MAP
#include <memory>
#include <unordered_map>
#define EXT std
#else
#ifdef HAVE_TR1_UNORDERED_MAP
#include <tr1/unordered_map>
#define EXT std::tr1
#else
#define EXT __gnu_cxx
#include <ext/hash_map>
#define unordered_map hash_map
#define unordered_multimap hash_multimap
#endif
#endif
#endif
#ifdef __DECCXX_LIBCXX_RH70
#define CONST
#else
#define CONST const
#endif
#ifdef USEGC
#define GC_THREADS
#include <gc.h>
#ifdef GC_DEBUG
extern "C" {
#include <gc_backptr.h>
}
#endif
inline void *asy_malloc(size_t n)
{
#ifdef GC_DEBUG
if(void *mem=GC_debug_malloc_ignore_off_page(n, GC_EXTRAS))
#else
if(void *mem=GC_malloc_ignore_off_page(n))
#endif
return mem;
throw std::bad_alloc();
}
inline void *asy_malloc_atomic(size_t n)
{
#ifdef GC_DEBUG
if(void *mem=GC_debug_malloc_atomic_ignore_off_page(n, GC_EXTRAS))
#else
if(void *mem=GC_malloc_atomic_ignore_off_page(n))
#endif
return mem;
throw std::bad_alloc();
}
#undef GC_MALLOC
#undef GC_MALLOC_ATOMIC
#define GC_MALLOC(sz) asy_malloc(sz)
#define GC_MALLOC_ATOMIC(sz) asy_malloc_atomic(sz)
#include <gc_allocator.h>
#include <gc_cpp.h>
#else // USEGC
using std::allocator;
#define gc_allocator allocator
class gc {};
class gc_cleanup {};
enum GCPlacement {UseGC, NoGC, PointerFreeGC};
inline void* operator new(size_t size, GCPlacement) {
return operator new(size);
}
inline void* operator new[](size_t size, GCPlacement) {
return operator new(size);
}
template<class T>
struct GC_type_traits {};
#define GC_DECLARE_PTRFREE(T) \
template<> struct GC_type_traits<T> {}
#endif // USEGC
namespace mem {
#define GC_CONTAINER(KIND) \
template <typename T> \
struct KIND : public std::KIND<T, gc_allocator<T> >, public gc { \
KIND() : std::KIND<T, gc_allocator<T> >() {} \
KIND(size_t n) : std::KIND<T, gc_allocator<T> >(n) {} \
KIND(size_t n, const T& t) : std::KIND<T, gc_allocator<T> >(n,t) {} \
}
GC_CONTAINER(list);
GC_CONTAINER(vector);
template <typename T, typename Container = vector<T> >
struct stack : public std::stack<T, Container>, public gc {
};
#define PAIR_ALLOC gc_allocator<std::pair<CONST Key,T> > /* space */
#undef GC_CONTAINER
#define GC_CONTAINER(KIND) \
template <typename Key, \
typename T, \
typename Compare = std::less<Key> > \
struct KIND : public std::KIND<Key,T,Compare,PAIR_ALLOC>, public gc \
{ \
KIND() : std::KIND<Key,T,Compare,PAIR_ALLOC> () {} \
}
GC_CONTAINER(map);
GC_CONTAINER(multimap);
#undef GC_CONTAINER
#ifndef NOHASH
#define GC_CONTAINER(KIND) \
template <typename Key, typename T, \
typename Hash = EXT::hash<Key>, \
typename Eq = std::equal_to<Key> > \
struct KIND : public \
EXT::KIND<Key,T,Hash,Eq,PAIR_ALLOC>, public gc { \
KIND() : EXT::KIND<Key,T,Hash,Eq,PAIR_ALLOC> () {} \
KIND(size_t n) \
: EXT::KIND<Key,T,Hash,Eq,PAIR_ALLOC> (n) {} \
}
GC_CONTAINER(unordered_map);
GC_CONTAINER(unordered_multimap);
#undef GC_CONTAINER
#undef EXT
#endif
#undef PAIR_ALLOC
#ifdef USEGC
typedef std::basic_string<char,std::char_traits<char>,
gc_allocator<char> > string;
typedef std::basic_stringstream<char,std::char_traits<char>,
gc_allocator<char> > stringstream;
typedef std::basic_istringstream<char,std::char_traits<char>,
gc_allocator<char> > istringstream;
typedef std::basic_ostringstream<char,std::char_traits<char>,
gc_allocator<char> > ostringstream;
typedef std::basic_stringbuf<char,std::char_traits<char>,
gc_allocator<char> > stringbuf;
#if GC_TMP_VERSION_MAJOR >= 7 && GC_TMP_VERSION_MINOR > 1
inline void compact(int x) {GC_set_dont_expand(x);}
#else
inline void compact(int x) {GC_dont_expand=x;}
#endif
#else
inline void compact(int x) {}
typedef std::string string;
typedef std::stringstream stringstream;
typedef std::istringstream istringstream;
typedef std::ostringstream ostringstream;
typedef std::stringbuf stringbuf;
#endif // USEGC
} // namespace mem
#endif
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