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// license:GPL-2.0+
// copyright-holders:Couriersud
/*
* palloc.h
*
*/
#ifndef PALLOC_H_
#define PALLOC_H_
#include <cstdio>
#include "pconfig.h"
//============================================================
// Memory allocation
//============================================================
#if (PSTANDALONE)
#include <cstddef>
#include <new>
#if defined(__GNUC__) && (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3))
#if !defined(__ppc__) && !defined (__PPC__) && !defined(__ppc64__) && !defined(__PPC64__)
#define ATTR_ALIGN __attribute__ ((aligned(64)))
#else
#define ATTR_ALIGN
#endif
#else
#define ATTR_ALIGN
#endif
class pmemory_pool;
extern pmemory_pool *ppool;
void *palloc_raw(const size_t size);
void pfree_raw(void *p);
void* operator new(std::size_t size, pmemory_pool *pool) throw (std::bad_alloc);
void operator delete(void *ptr, pmemory_pool *pool);
template<typename T>
inline void pfree_t(T *p)
{
p->~T();
pfree_raw(p);
}
template <typename T>
inline T *palloc_array_t(size_t N)
{
//printf("here palloc_array %d\n", (unsigned) N);
char *buf = reinterpret_cast<char *>(palloc_raw(N * sizeof(T) + 64*2));
size_t *s = reinterpret_cast<size_t *>(buf);
*s = N;
buf += 64;
T *p = reinterpret_cast<T *>(buf);
for (size_t i = 0; i < N; i++)
new(reinterpret_cast<void *>(&p[i])) T();
return p;
}
template <typename T>
inline void pfree_array_t(T *p)
{
char *buf = reinterpret_cast<char *>(p);
buf -= 64;
size_t *s = reinterpret_cast<size_t *>(buf);
size_t N = *s;
//printf("here pfree_array %d\n", (unsigned) N);
while (N > 0)
{
p->~T();
p++;
N--;
}
pfree_raw(s);
}
#define palloc(T) new(ppool) T
#define pfree(_ptr) pfree_t(_ptr)
#if 1
#define palloc_array(T, N) palloc_array_t<T>(N)
#define pfree_array(_ptr) pfree_array_t(_ptr)
#else
#define palloc_array(T, N) new T[N]
#define pfree_array(_ptr) delete[] _ptr
#endif
#else
#include "corealloc.h"
#define ATTR_ALIGN
#define palloc(T) global_alloc(T)
#define pfree(_ptr) global_free(_ptr)
#define palloc_array(T, N) global_alloc_array(T, N)
#define pfree_array(_ptr) global_free_array(_ptr)
#endif
#endif /* NLCONFIG_H_ */
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