52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
#if !defined(TORCH_STABLE_ONLY) && !defined(TORCH_TARGET_VERSION)
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#pragma once
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#include <ATen/MapAllocator.h>
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#ifdef __cplusplus
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void libshm_init(const char* manager_exec_path);
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// Superclass to run a constructor before at::RefcountedMapAllocator
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class THManagedMapAllocatorInit {
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protected:
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THManagedMapAllocatorInit(const char* manager_handle, const char* filename);
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std::string manager_handle_;
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};
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// Like a at::RefcountedMapAllocator, but it also makes use of an external
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// shared memory manager process to ensure that shared memory regions actually
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// get freed in the end (even if processes lose the memory).
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class THManagedMapAllocator : private THManagedMapAllocatorInit,
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public at::RefcountedMapAllocator {
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public:
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THManagedMapAllocator(
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const char* manager_handle,
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const char* filename,
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int flags,
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size_t size);
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void close() override;
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~THManagedMapAllocator() override {
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close();
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}
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static at::DataPtr makeDataPtr(
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const char* manager_handle,
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const char* filename,
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int flags,
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size_t size);
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static THManagedMapAllocator* fromDataPtr(const at::DataPtr& /*dptr*/);
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const char* manager_handle() const {
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return manager_handle_.c_str();
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}
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};
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#endif
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#else
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#error "This file should not be included when either TORCH_STABLE_ONLY or TORCH_TARGET_VERSION is defined."
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#endif // !defined(TORCH_STABLE_ONLY) && !defined(TORCH_TARGET_VERSION)
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