You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
47 lines
1.2 KiB
47 lines
1.2 KiB
5 months ago
|
#pragma once
|
||
|
|
|
||
|
|
#include <ATen/MapAllocator.h>
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
|
||
|
|
void libshm_init(const char* manager_exec_path);
|
||
|
|
|
||
|
|
// Superclass to run a constructor before at::RefcountedMapAllocator
|
||
|
|
class THManagedMapAllocatorInit {
|
||
|
|
protected:
|
||
|
|
THManagedMapAllocatorInit(const char* manager_handle, const char* filename);
|
||
|
|
std::string manager_handle_;
|
||
|
|
};
|
||
|
|
|
||
|
|
// Like a at::RefcountedMapAllocator, but it also makes use of an external
|
||
|
|
// shared memory manager process to ensure that shared memory regions actually
|
||
|
|
// get freed in the end (even if processes lose the memory).
|
||
|
|
class THManagedMapAllocator : private THManagedMapAllocatorInit,
|
||
|
|
public at::RefcountedMapAllocator {
|
||
|
|
public:
|
||
|
|
THManagedMapAllocator(
|
||
|
|
const char* manager_handle,
|
||
|
|
const char* filename,
|
||
|
|
int flags,
|
||
|
|
size_t size);
|
||
|
|
|
||
|
|
void close() override;
|
||
|
|
|
||
|
|
~THManagedMapAllocator() override {
|
||
|
|
close();
|
||
|
|
}
|
||
|
|
|
||
|
|
static at::DataPtr makeDataPtr(
|
||
|
|
const char* manager_handle,
|
||
|
|
const char* filename,
|
||
|
|
int flags,
|
||
|
|
size_t size);
|
||
|
|
static THManagedMapAllocator* fromDataPtr(const at::DataPtr&);
|
||
|
|
|
||
|
|
const char* manager_handle() const {
|
||
|
|
return manager_handle_.c_str();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|