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//===----------- ExecutorSharedMemoryMapperService.h ------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_EXECUTIONENGINE_ORC_TARGETPROCESS_EXECUTORSHAREDMEMORYMAPPERSERVICE_H
#define LLVM_EXECUTIONENGINE_ORC_TARGETPROCESS_EXECUTORSHAREDMEMORYMAPPERSERVICE_H
#include "llvm/ADT/DenseMap.h"
#include "llvm/ExecutionEngine/Orc/Shared/TargetProcessControlTypes.h"
#include "llvm/ExecutionEngine/Orc/TargetProcess/ExecutorBootstrapService.h"
#include <atomic>
#include <mutex>
#if defined(_WIN32)
#include <windows.h>
#endif
namespace llvm {
namespace orc {
namespace rt_bootstrap {
class ExecutorSharedMemoryMapperService final
: public ExecutorBootstrapService {
public:
~ExecutorSharedMemoryMapperService(){};
Expected<std::pair<ExecutorAddr, std::string>> reserve(uint64_t Size);
Expected<ExecutorAddr> initialize(ExecutorAddr Reservation,
tpctypes::SharedMemoryFinalizeRequest &FR);
Error deinitialize(const std::vector<ExecutorAddr> &Bases);
Error release(const std::vector<ExecutorAddr> &Bases);
Error shutdown() override;
void addBootstrapSymbols(StringMap<ExecutorAddr> &M) override;
private:
struct Allocation {
std::vector<shared::WrapperFunctionCall> DeinitializationActions;
};
using AllocationMap = DenseMap<ExecutorAddr, Allocation>;
struct Reservation {
size_t Size;
std::vector<ExecutorAddr> Allocations;
#if defined(_WIN32)
HANDLE SharedMemoryFile;
#endif
};
using ReservationMap = DenseMap<void *, Reservation>;
static llvm::orc::shared::CWrapperFunctionResult
reserveWrapper(const char *ArgData, size_t ArgSize);
static llvm::orc::shared::CWrapperFunctionResult
initializeWrapper(const char *ArgData, size_t ArgSize);
static llvm::orc::shared::CWrapperFunctionResult
deinitializeWrapper(const char *ArgData, size_t ArgSize);
static llvm::orc::shared::CWrapperFunctionResult
releaseWrapper(const char *ArgData, size_t ArgSize);
#if (defined(LLVM_ON_UNIX) && !defined(__ANDROID__)) || defined(_WIN32)
std::atomic<int> SharedMemoryCount{0};
#endif
std::mutex Mutex;
ReservationMap Reservations;
AllocationMap Allocations;
};
} // namespace rt_bootstrap
} // namespace orc
} // namespace llvm
#endif // LLVM_EXECUTIONENGINE_ORC_TARGETPROCESS_EXECUTORSHAREDMEMORYMAPPERSERVICE_H
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