pytorch/torch/csrc/distributed/c10d/FileStore.hpp
Xiang Gao 6e16c9bb1d Add support for deleteKey for FileStore (#69953)
Summary:
torch_ucc uses `deleteKey`, and trying to run PyTorch tests with torch_ucc leads to failure about `deleteKey not implemented for FileStore`.

cc pietern mrshenli pritamdamania87 zhaojuanmao satgera rohan-varma gqchen aazzolini osalpekar jiayisuse SciPioneer H-Huang

Pull Request resolved: https://github.com/pytorch/pytorch/pull/69953

Reviewed By: ngimel

Differential Revision: D33458457

Pulled By: H-Huang

fbshipit-source-id: f46afd59f950722ae594d9aafb8843f14019e930
2022-01-07 06:20:59 -08:00

62 lines
1.4 KiB
C++

#pragma once
#include <sys/types.h>
#include <mutex>
#include <unordered_map>
#include <c10d/Store.hpp>
namespace c10d {
class TORCH_API FileStore : public Store {
public:
explicit FileStore(const std::string& path, int numWorkers);
virtual ~FileStore();
void set(const std::string& key, const std::vector<uint8_t>& value) override;
std::vector<uint8_t> compareSet(
const std::string& key,
const std::vector<uint8_t>& expectedValue,
const std::vector<uint8_t>& desiredValue) override;
std::vector<uint8_t> get(const std::string& key) override;
int64_t add(const std::string& key, int64_t value) override;
int64_t getNumKeys() override;
bool deleteKey(const std::string& key) override;
bool check(const std::vector<std::string>& keys) override;
void wait(const std::vector<std::string>& keys) override;
void wait(
const std::vector<std::string>& keys,
const std::chrono::milliseconds& timeout) override;
// Returns the path used by the FileStore.
const std::string& getPath() const noexcept {
return path_;
}
protected:
int64_t addHelper(const std::string& key, int64_t i);
std::string path_;
off_t pos_;
int numWorkers_;
const std::string cleanupKey_;
const std::string regularPrefix_;
const std::string deletePrefix_;
std::unordered_map<std::string, std::vector<uint8_t>> cache_;
std::mutex activeFileOpLock_;
};
} // namespace c10d