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https://github.com/wpilibsuite/allwpilib
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f84018af5f
During shared library loading, a different libLLVM can be pulled in, causing llvm symbols from dependent libraries to resolve to that library instead of this one. This has been seen in the wild with the Mesa OpenGL implementation in JavaFX applications (see wpilibsuite/shuffleboard#361). This is clearly a very breaking change. For some level of backwards compatibility, a namespace alias from llvm to wpi is performed in the "llvm" headers. Unfortunately, forward declarations of llvm classes will still break, but compilers seem to generate clear error messages in those cases ("namespace alias 'llvm' not allowed here, assuming 'wpi'"). This change also moves all the wpiutil headers to a single "wpi" subdirectory from the previously split "llvm", "support", "tcpsockets", and "udpsockets". Shim headers will be added for backwards compatibility in a later commit.
68 lines
2.4 KiB
C++
68 lines
2.4 KiB
C++
/*----------------------------------------------------------------------------*/
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/* Copyright (c) 2017-2018 FIRST. All Rights Reserved. */
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/* Open Source Software - may be modified and shared by FRC teams. The code */
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/* must be accompanied by the FIRST BSD license file in the root directory of */
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/* the project. */
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/*----------------------------------------------------------------------------*/
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#pragma once
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#include <atomic>
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#include <limits>
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#include <memory>
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#include <wpi/mutex.h>
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#include "MockData/NotifyListenerVector.h"
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#include "MockData/SPIData.h"
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namespace hal {
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typedef HalCallbackListenerVectorImpl<HAL_SpiReadAutoReceiveBufferCallback>
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SpiAutoReceiveDataListenerVector;
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class SPIData {
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public:
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SPIData();
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~SPIData();
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int32_t RegisterInitializedCallback(HAL_NotifyCallback callback, void* param,
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HAL_Bool initialNotify);
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void CancelInitializedCallback(int32_t uid);
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void InvokeInitializedCallback(HAL_Value value);
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HAL_Bool GetInitialized();
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void SetInitialized(HAL_Bool initialized);
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int32_t RegisterReadCallback(HAL_BufferCallback callback, void* param);
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void CancelReadCallback(int32_t uid);
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int32_t RegisterWriteCallback(HAL_ConstBufferCallback callback, void* param);
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void CancelWriteCallback(int32_t uid);
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int32_t RegisterReadAutoReceivedDataCallback(
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HAL_SpiReadAutoReceiveBufferCallback callback, void* param);
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void CancelReadAutoReceivedDataCallback(int32_t uid);
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int32_t Read(uint8_t* buffer, int32_t count);
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int32_t Write(const uint8_t* dataToSend, int32_t sendSize);
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int32_t Transaction(const uint8_t* dataToSend, uint8_t* dataReceived,
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int32_t size);
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int32_t ReadAutoReceivedData(uint8_t* buffer, int32_t numToRead,
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double timeout, int32_t* status);
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void ResetData();
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private:
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wpi::mutex m_registerMutex;
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wpi::mutex m_dataMutex;
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std::atomic<HAL_Bool> m_initialized{false};
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std::shared_ptr<NotifyListenerVector> m_initializedCallbacks = nullptr;
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std::shared_ptr<BufferListenerVector> m_readCallbacks = nullptr;
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std::shared_ptr<ConstBufferListenerVector> m_writeCallbacks = nullptr;
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std::shared_ptr<SpiAutoReceiveDataListenerVector> m_autoReceiveDataCallbacks =
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nullptr;
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};
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extern SPIData* SimSPIData;
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} // namespace hal
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