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z3/lib/memory_manager.h
Leonardo de Moura e9eab22e5c Z3 sources
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2012-10-02 11:35:25 -07:00

106 lines
2.3 KiB
C++

/*++
Copyright (c) 2006 Microsoft Corporation
Module Name:
memory_manager.h
Abstract:
Custom memory layer.
Author:
Nikolaj Bjorner (nbjorner) 2007-07-24
Revision History:
--*/
#ifndef _MEMORY_H_
#define _MEMORY_H_
#include<cstdlib>
#include<ostream>
#include"z3_exception.h"
class out_of_memory_error : public z3_error {
public:
out_of_memory_error();
};
class memory {
public:
static bool is_out_of_memory();
static void initialize(size_t max_size);
static void set_high_watermark(size_t watermak);
static bool above_high_watermark();
static void set_max_size(size_t max_size);
static void finalize();
static void display_max_usage(std::ostream& os);
static void display_i_max_usage(std::ostream& os);
static void deallocate(void* p);
static void* allocate(size_t s);
static void deallocate(char const* file, int line, void* p);
static void* allocate(char const* file, int line, char const* obj, size_t s);
static unsigned long long get_allocation_size();
static unsigned long long get_max_used_memory();
// temporary hack to avoid out-of-memory crash in z3.exe
static void exit_when_out_of_memory(bool flag, char const * msg);
};
#if _DEBUG
#define alloc(T,...) new (memory::allocate(__FILE__,__LINE__,#T, sizeof(T))) T(__VA_ARGS__)
#define dealloc(_ptr_) deallocf(__FILE__,__LINE__,_ptr_)
template<typename T>
void deallocf(char const* file, int line, T * ptr) {
if (ptr == 0) return;
ptr->~T();
memory::deallocate(file, line, ptr);
}
#else
#define alloc(T,...) new (memory::allocate(sizeof(T))) T(__VA_ARGS__)
template<typename T>
void dealloc(T * ptr) {
if (ptr == 0) return;
ptr->~T();
memory::deallocate(ptr);
}
#endif
template<typename T>
T * alloc_vect(unsigned sz) {
T * r = static_cast<T*>(memory::allocate(sizeof(T) * sz));
T * curr = r;
for (unsigned i = 0; i < sz; i++, curr++)
new (curr) T();
return r;
}
template<typename T>
void dealloc_vect(T * ptr, unsigned sz) {
if (ptr == 0) return;
T * curr = ptr;
for (unsigned i = 0; i < sz; i++, curr++)
curr->~T();
memory::deallocate(ptr);
}
#define alloc_svect(T, sz) static_cast<T*>(memory::allocate(sizeof(T) * sz))
template<typename T>
void dealloc_svect(T * ptr) {
if (ptr == 0) return;
memory::deallocate(ptr);
}
#endif /* _MEMORY_H_ */