ClickHouse/base/common/memory.h

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#pragma once
#include <new>
#include "likely.h"
#if __has_include(<common/config_common.h>)
#include <common/config_common.h>
#endif
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#if USE_JEMALLOC
#include <jemalloc/jemalloc.h>
#if JEMALLOC_VERSION_MAJOR < 4
#undef USE_JEMALLOC
#define USE_JEMALLOC 0
#include <cstdlib>
#endif
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#else
#include <cstdlib>
#endif
// Also defined in Core/Defines.h
#if !defined(ALWAYS_INLINE)
#if defined(_MSC_VER)
#define ALWAYS_INLINE inline __forceinline
#else
#define ALWAYS_INLINE inline __attribute__((__always_inline__))
#endif
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#endif
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#if !defined(NO_INLINE)
#if defined(_MSC_VER)
#define NO_INLINE static __declspec(noinline)
#else
#define NO_INLINE __attribute__((__noinline__))
#endif
#endif
namespace Memory
{
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ALWAYS_INLINE void * newImpl(std::size_t size)
{
auto * ptr = malloc(size);
if (likely(ptr != nullptr))
return ptr;
/// @note no std::get_new_handler logic implemented
throw std::bad_alloc{};
}
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ALWAYS_INLINE void * newNoExept(std::size_t size) noexcept
{
return malloc(size);
}
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ALWAYS_INLINE void deleteImpl(void * ptr) noexcept
{
free(ptr);
}
#if USE_JEMALLOC
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ALWAYS_INLINE void deleteSized(void * ptr, std::size_t size) noexcept
{
if (unlikely(ptr == nullptr))
return;
sdallocx(ptr, size, 0);
}
#else
ALWAYS_INLINE void deleteSized(void * ptr, std::size_t size [[maybe_unused]]) noexcept
{
free(ptr);
}
#endif
}