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#include "core-inl.h"
#include <util/system/compiler.h>
#include <library/cpp/malloc/api/malloc.h>
namespace NYT::NYTAlloc {
////////////////////////////////////////////////////////////////////////////////
// YTAlloc public API
#ifdef YT_ALLOC_ENABLED
void* Allocate(size_t size)
{
return AllocateInline(size);
}
void* AllocateSmall(size_t rank)
{
return AllocateSmallInline(rank);
}
void* AllocatePageAligned(size_t size)
{
return AllocatePageAlignedInline(size);
}
void Free(void* ptr)
{
FreeInline(ptr);
}
void FreeNonNull(void* ptr)
{
FreeNonNullInline(ptr);
}
size_t GetAllocationSize(const void* ptr)
{
return GetAllocationSizeInline(ptr);
}
size_t GetAllocationSize(size_t size)
{
return GetAllocationSizeInline(size);
}
#endif
////////////////////////////////////////////////////////////////////////////////
// Memory tags API bridge
TMemoryTag GetCurrentMemoryTag()
{
return TThreadManager::GetCurrentMemoryTag();
}
void SetCurrentMemoryTag(TMemoryTag tag)
{
TThreadManager::SetCurrentMemoryTag(tag);
}
void GetMemoryUsageForTags(const TMemoryTag* tags, size_t count, size_t* results)
{
InitializeGlobals();
StatisticsManager->GetTaggedMemoryUsage(tags, count, results);
}
size_t GetMemoryUsageForTag(TMemoryTag tag)
{
size_t result;
GetMemoryUsageForTags(&tag, 1, &result);
return result;
}
////////////////////////////////////////////////////////////////////////////////
// Memory zone API bridge
void SetCurrentMemoryZone(EMemoryZone zone)
{
TThreadManager::SetCurrentMemoryZone(zone);
}
EMemoryZone GetCurrentMemoryZone()
{
return TThreadManager::GetCurrentMemoryZone();
}
EMemoryZone GetAllocationMemoryZone(const void* ptr)
{
auto uintptr = reinterpret_cast<uintptr_t>(ptr);
if (uintptr >= MinUntaggedSmallPtr && uintptr < MaxUntaggedSmallPtr ||
uintptr >= MinTaggedSmallPtr && uintptr < MaxTaggedSmallPtr ||
uintptr >= DumpableLargeZoneStart && uintptr < DumpableLargeZoneEnd)
{
return EMemoryZone::Normal;
} else if (uintptr >= UndumpableLargeZoneStart && uintptr < UndumpableLargeZoneEnd) {
return EMemoryZone::Undumpable;
} else {
return EMemoryZone::Unknown;
}
}
////////////////////////////////////////////////////////////////////////////////
// Fiber id API
void SetCurrentFiberId(TFiberId id)
{
TThreadManager::SetCurrentFiberId(id);
}
TFiberId GetCurrentFiberId()
{
return TThreadManager::GetCurrentFiberId();
}
////////////////////////////////////////////////////////////////////////////////
} // namespace NYT::NYTAlloc
////////////////////////////////////////////////////////////////////////////////
// Libc malloc bridge
#ifdef YT_ALLOC_ENABLED
using namespace NYT::NYTAlloc;
extern "C" void* malloc(size_t size)
{
return AllocateInline(size);
}
extern "C" void* valloc(size_t size)
{
return AllocatePageAlignedInline(size);
}
extern "C" void* aligned_alloc(size_t alignment, size_t size)
{
// Alignment must be a power of two.
Y_VERIFY((alignment & (alignment - 1)) == 0);
// Alignment must not exceed the page size.
Y_VERIFY(alignment <= PageSize);
if (alignment <= 16) {
// Proper alignment here is automatic.
return Allocate(size);
} else {
return AllocatePageAligned(size);
}
}
extern "C" void* pvalloc(size_t size)
{
return valloc(AlignUp(size, PageSize));
}
extern "C" int posix_memalign(void** ptrPtr, size_t alignment, size_t size)
{
*ptrPtr = aligned_alloc(alignment, size);
return 0;
}
extern "C" void* memalign(size_t alignment, size_t size)
{
return aligned_alloc(alignment, size);
}
extern "C" void* __libc_memalign(size_t alignment, size_t size)
{
return aligned_alloc(alignment, size);
}
extern "C" void free(void* ptr)
{
FreeInline(ptr);
}
extern "C" void* calloc(size_t n, size_t elemSize)
{
// Overflow check.
auto size = n * elemSize;
if (elemSize != 0 && size / elemSize != n) {
return nullptr;
}
void* result = Allocate(size);
::memset(result, 0, size);
return result;
}
extern "C" void cfree(void* ptr)
{
Free(ptr);
}
extern "C" void* realloc(void* oldPtr, size_t newSize)
{
if (!oldPtr) {
return Allocate(newSize);
}
if (newSize == 0) {
Free(oldPtr);
return nullptr;
}
void* newPtr = Allocate(newSize);
size_t oldSize = GetAllocationSize(oldPtr);
::memcpy(newPtr, oldPtr, std::min(oldSize, newSize));
Free(oldPtr);
return newPtr;
}
extern "C" size_t malloc_usable_size(void* ptr) noexcept
{
return GetAllocationSize(ptr);
}
extern "C" size_t nallocx(size_t size, int /* flags */) noexcept
{
return GetAllocationSize(size);
}
#endif
namespace NMalloc {
////////////////////////////////////////////////////////////////////////////////
// Arcadia malloc API bridge
TMallocInfo MallocInfo()
{
TMallocInfo info;
info.Name = "ytalloc";
return info;
}
////////////////////////////////////////////////////////////////////////////////
} // namespace NMalloc
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