intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 220 insertions, 0 deletions

diff --git a/library/cpp/ytalloc/api/fallback.cpp b/library/cpp/ytalloc/api/fallback.cpp
new file mode 100644
index 0000000000..5880ede439
--- /dev/null
+++ b/library/cpp/ytalloc/api/fallback.cpp
@@ -0,0 +1,220 @@
+// This file contains the fallback implementations of YTAlloc-specific stuff.
+// These implementations are annotated with Y_WEAK to ensure that if the actual YTAlloc
+// is available at the link time, the latter is preferred over the fallback.
+#include "ytalloc.h"
+
+#include <util/system/compiler.h>
+#include <util/system/yassert.h>
+
+#include <cstdlib>
+
+namespace NYT::NYTAlloc {
+
+////////////////////////////////////////////////////////////////////////////////
+
+Y_WEAK void* Allocate(size_t size)
+{
+    return ::malloc(size);
+}
+
+Y_WEAK void* AllocatePageAligned(size_t size)
+{
+#if defined(_win_)
+    return ::_aligned_malloc(size, PageSize);
+#elif defined(_darwin_) || !defined(_musl_)
+    return ::valloc(size);
+#else
+    return ::memalign(PageSize, size);
+#endif
+}
+
+Y_WEAK void* AllocateSmall(size_t rank)
+{
+    return ::malloc(SmallRankToSize[rank]);
+}
+
+Y_WEAK void Free(void* ptr)
+{
+    ::free(ptr);
+}
+
+Y_WEAK void FreeNonNull(void* ptr)
+{
+    Y_ASSERT(ptr);
+    ::free(ptr);
+}
+
+Y_WEAK size_t GetAllocationSize(const void* /*ptr*/)
+{
+    return 0;
+}
+
+Y_WEAK size_t GetAllocationSize(size_t size)
+{
+    return size;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+Y_WEAK TMemoryTag GetCurrentMemoryTag()
+{
+    return NullMemoryTag;
+}
+
+Y_WEAK void SetCurrentMemoryTag(TMemoryTag /*tag*/)
+{ }
+
+Y_WEAK size_t GetMemoryUsageForTag(TMemoryTag /*tag*/)
+{
+    return 0;
+}
+
+Y_WEAK void GetMemoryUsageForTags(const TMemoryTag* /*tags*/, size_t /*count*/, size_t* /*results*/)
+{ }
+
+////////////////////////////////////////////////////////////////////////////////
+
+Y_WEAK void SetCurrentMemoryZone(EMemoryZone /*zone*/)
+{ }
+
+Y_WEAK EMemoryZone GetCurrentMemoryZone()
+{
+    return EMemoryZone::Normal;
+}
+
+Y_WEAK EMemoryZone GetAllocationMemoryZone(const void* /*ptr*/)
+{
+    return EMemoryZone::Normal;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+Y_WEAK void SetCurrentFiberId(TFiberId /*id*/)
+{ }
+
+Y_WEAK TFiberId GetCurrentFiberId()
+{
+    return 0;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+Y_WEAK void EnableLogging(TLogHandler /*logHandler*/)
+{ }
+
+////////////////////////////////////////////////////////////////////////////////
+
+Y_WEAK void SetBacktraceProvider(TBacktraceProvider /*provider*/)
+{ }
+
+Y_WEAK void SetBacktraceFormatter(TBacktraceFormatter /*formatter*/)
+{ }
+
+////////////////////////////////////////////////////////////////////////////////
+
+Y_WEAK void EnableStockpile()
+{ }
+
+Y_WEAK void SetStockpileInterval(TDuration /*value*/)
+{ }
+
+Y_WEAK void SetStockpileThreadCount(int /*value*/)
+{ }
+
+Y_WEAK void SetStockpileSize(size_t /*value*/)
+{ }
+
+Y_WEAK void SetLargeUnreclaimableCoeff(double /*value*/)
+{ }
+
+Y_WEAK void SetMinLargeUnreclaimableBytes(size_t /*value*/)
+{ }
+
+Y_WEAK void SetMaxLargeUnreclaimableBytes(size_t /*value*/)
+{ }
+
+Y_WEAK void SetTimingEventThreshold(TDuration /*value*/)
+{ }
+
+Y_WEAK void SetAllocationProfilingEnabled(bool /*value*/)
+{ }
+
+Y_WEAK void SetAllocationProfilingSamplingRate(double /*rate*/)
+{ }
+
+Y_WEAK void SetSmallArenaAllocationProfilingEnabled(size_t /*rank*/, bool /*value*/)
+{ }
+
+Y_WEAK void SetLargeArenaAllocationProfilingEnabled(size_t /*rank*/, bool /*value*/)
+{ }
+
+Y_WEAK void SetProfilingBacktraceDepth(int /*depth*/)
+{ }
+
+Y_WEAK void SetMinProfilingBytesUsedToReport(size_t /*size*/)
+{ }
+
+Y_WEAK void SetEnableEagerMemoryRelease(bool /*value*/)
+{ }
+
+Y_WEAK void SetEnableMadvisePopulate(bool /*value*/)
+{ }
+
+////////////////////////////////////////////////////////////////////////////////
+
+Y_WEAK TEnumIndexedVector<ETotalCounter, ssize_t> GetTotalAllocationCounters()
+{
+    return {};
+}
+
+Y_WEAK TEnumIndexedVector<ESmallCounter, ssize_t> GetSmallAllocationCounters()
+{
+    return {};
+}
+
+Y_WEAK TEnumIndexedVector<ELargeCounter, ssize_t> GetLargeAllocationCounters()
+{
+    return {};
+}
+
+Y_WEAK std::array<TEnumIndexedVector<ESmallArenaCounter, ssize_t>, SmallRankCount> GetSmallArenaAllocationCounters()
+{
+    return {};
+}
+
+Y_WEAK std::array<TEnumIndexedVector<ELargeArenaCounter, ssize_t>, LargeRankCount> GetLargeArenaAllocationCounters()
+{
+    return {};
+}
+
+Y_WEAK TEnumIndexedVector<EHugeCounter, ssize_t> GetHugeAllocationCounters()
+{
+    return {};
+}
+
+Y_WEAK TEnumIndexedVector<ESystemCounter, ssize_t> GetSystemAllocationCounters()
+{
+    return {};
+}
+
+Y_WEAK TEnumIndexedVector<EUndumpableCounter, ssize_t> GetUndumpableAllocationCounters()
+{
+    return {};
+}
+
+Y_WEAK TEnumIndexedVector<ETimingEventType, TTimingEventCounters> GetTimingEventCounters()
+{
+    return {};
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+Y_WEAK std::vector<TProfiledAllocation> GetProfiledAllocationStatistics()
+{
+    return {};
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+} // namespace NYT::NYTAlloc
+