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89 lines
2.9 KiB
C++
89 lines
2.9 KiB
C++
/* (c) Magnus Auvinen. See licence.txt in the root of the distribution for more information. */
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/* If you are missing that file, acquire a complete release at teeworlds.com. */
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#ifndef GAME_SERVER_ALLOC_H
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#define GAME_SERVER_ALLOC_H
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#include <new>
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#include <base/system.h>
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#ifndef __has_feature
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#define __has_feature(x) 0
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#endif
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#if __has_feature(address_sanitizer)
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#include <sanitizer/asan_interface.h>
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#else
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#define ASAN_POISON_MEMORY_REGION(addr, size) \
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((void)(addr), (void)(size))
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#define ASAN_UNPOISON_MEMORY_REGION(addr, size) \
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((void)(addr), (void)(size))
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#endif
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#if __cplusplus >= 201703L
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#define MAYBE_UNUSED [[maybe_unused]]
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#elif defined(__GNUC__)
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#define MAYBE_UNUSED __attribute__((unused))
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#else
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#define MAYBE_UNUSED
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#endif
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#define MACRO_ALLOC_HEAP() \
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public: \
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void *operator new(size_t Size) \
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{ \
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void *p = malloc(Size); \
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mem_zero(p, Size); \
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return p; \
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} \
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void operator delete(void *pPtr) \
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{ \
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free(pPtr); \
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} \
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\
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private:
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#define MACRO_ALLOC_POOL_ID() \
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public: \
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void *operator new(size_t Size, int id); \
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void operator delete(void *p, int id); \
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void operator delete(void *p); /* NOLINT(misc-new-delete-overloads) */ \
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\
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private:
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#if __has_feature(address_sanitizer)
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#define MACRO_ALLOC_GET_SIZE(POOLTYPE) ((sizeof(POOLTYPE) + 7) & ~7)
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#else
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#define MACRO_ALLOC_GET_SIZE(POOLTYPE) (sizeof(POOLTYPE))
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#endif
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#define MACRO_ALLOC_POOL_ID_IMPL(POOLTYPE, PoolSize) \
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static char gs_PoolData##POOLTYPE[PoolSize][MACRO_ALLOC_GET_SIZE(POOLTYPE)] = {{0}}; \
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static int gs_PoolUsed##POOLTYPE[PoolSize] = {0}; \
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MAYBE_UNUSED static int gs_PoolDummy##POOLTYPE = (ASAN_POISON_MEMORY_REGION(gs_PoolData##POOLTYPE, sizeof(gs_PoolData##POOLTYPE)), 0); \
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void *POOLTYPE::operator new(size_t Size, int id) \
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{ \
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dbg_assert(sizeof(POOLTYPE) >= Size, "size error"); \
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dbg_assert(!gs_PoolUsed##POOLTYPE[id], "already used"); \
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ASAN_UNPOISON_MEMORY_REGION(gs_PoolData##POOLTYPE[id], sizeof(gs_PoolData##POOLTYPE[id])); \
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gs_PoolUsed##POOLTYPE[id] = 1; \
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mem_zero(gs_PoolData##POOLTYPE[id], sizeof(gs_PoolData##POOLTYPE[id])); \
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return gs_PoolData##POOLTYPE[id]; \
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} \
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void POOLTYPE::operator delete(void *p, int id) \
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{ \
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dbg_assert(gs_PoolUsed##POOLTYPE[id], "not used"); \
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dbg_assert(id == (POOLTYPE *)p - (POOLTYPE *)gs_PoolData##POOLTYPE, "invalid id"); \
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gs_PoolUsed##POOLTYPE[id] = 0; \
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mem_zero(gs_PoolData##POOLTYPE[id], sizeof(gs_PoolData##POOLTYPE[id])); \
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ASAN_POISON_MEMORY_REGION(gs_PoolData##POOLTYPE[id], sizeof(gs_PoolData##POOLTYPE[id])); \
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} \
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void POOLTYPE::operator delete(void *p) /* NOLINT(misc-new-delete-overloads) */ \
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{ \
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int id = (POOLTYPE *)p - (POOLTYPE *)gs_PoolData##POOLTYPE; \
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dbg_assert(gs_PoolUsed##POOLTYPE[id], "not used"); \
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gs_PoolUsed##POOLTYPE[id] = 0; \
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mem_zero(gs_PoolData##POOLTYPE[id], sizeof(gs_PoolData##POOLTYPE[id])); \
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ASAN_POISON_MEMORY_REGION(gs_PoolData##POOLTYPE[id], sizeof(gs_PoolData##POOLTYPE[id])); \
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}
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#endif
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