borg_public/libLSS/tools/memusage.hpp
2023-05-29 10:41:03 +02:00

56 lines
1.6 KiB
C++

#ifndef __LIBLSS_TOOLS_MEMUSAGE_HPP
#define __LIBLSS_TOOLS_MEMUSAGE_HPP
#include <sys/types.h>
#include "libLSS/tools/static_init.hpp"
#include "libLSS/tools/static_auto.hpp"
#include "libLSS/tools/errors.hpp"
#include <map>
#include <string>
namespace LibLSS {
struct AllocationDetail {
ssize_t allocated, freed;
size_t peak;
};
void report_allocation(size_t sz, const void *ptr);
void report_free(size_t sz, const void *ptr);
std::map<std::string, AllocationDetail> memoryReport();
void clearReport();
template<typename T>
struct track_allocator: public std::allocator<T> {
public:
typedef typename std::allocator<T> parent;
typedef typename parent::pointer pointer;
typedef typename parent::size_type size_type;
template<typename U> struct rebind { typedef track_allocator<U> other; };
track_allocator() throw(): std::allocator<T>() {}
track_allocator(const track_allocator& alloc) throw(): std::allocator<T>(alloc) {}
template<typename U>
track_allocator(const track_allocator<U>& alloc) throw(): std::allocator<T>(alloc) {}
pointer allocate(size_type _Count, const void *_Hint = 0) {
pointer p = std::allocator<T>::allocate(_Count, _Hint);
if (p) {
report_allocation(_Count*sizeof(T), _Hint);
} else {
error_helper<ErrorMemory>(boost::format("Memory allocation failed to allocate %d bytes") % (sizeof(T)*_Count));
}
return p;
}
void deallocate(pointer _Ptr, size_type _Count) {
std::allocator<T>::deallocate(_Ptr, _Count);
report_free(_Count*sizeof(T), _Ptr);
}
};
}
AUTO_REGISTRATOR_DECL(memory_alloc);
#endif