73 lines
2.8 KiB
C++
73 lines
2.8 KiB
C++
/*
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* Copyright (C) 2023 Intel Corporation
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*
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* SPDX-License-Identifier: MIT
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*
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*/
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#pragma once
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#include "shared/source/helpers/non_copyable_or_moveable.h"
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#include "shared/source/os_interface/os_library.h"
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#include "level_zero/sysman/source/linux/udev/udev_lib.h"
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#include <cinttypes>
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#include <memory>
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#include <mutex>
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#include <string>
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#include <vector>
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namespace L0 {
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namespace Sysman {
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typedef struct udev *(*pUdevNew)(void);
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typedef struct udev_monitor *(*pUdevMonitorNewFromNetlink)(struct udev *, const char *);
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typedef int (*pUdevMonitorFilterAddMatchSubsystemDevtype)(struct udev_monitor *udev_monitor, const char *subsystem, const char *devtype);
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typedef int (*pUdevMonitorEnableReceiving)(struct udev_monitor *udev_monitor);
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typedef int (*pUdevMonitorGetFd)(struct udev_monitor *udev_monitor);
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typedef struct udev_device *(*pUdevMonitorReceiveDevice)(struct udev_monitor *udev_monitor);
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typedef dev_t (*pUdevDeviceGetDevnum)(struct udev_device *udev_device);
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typedef const char *(*pUdevDeviceGetAction)(struct udev_device *udev_device);
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typedef const char *(*pUdevDeviceGetPropertyValue)(struct udev_device *udev_device, const char *key);
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typedef struct udev_device *(*pUdevDeviceUnref)(struct udev_device *udev_device);
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class UdevLibImp : public UdevLib {
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public:
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UdevLibImp() = default;
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~UdevLibImp() override;
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std::unique_ptr<NEO::OsLibrary> libraryHandle;
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bool loadEntryPoints();
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template <class T>
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bool getSymbolAddr(const std::string name, T &proc) {
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void *addr = libraryHandle->getProcAddress(name);
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proc = reinterpret_cast<T>(addr);
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return nullptr != proc;
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}
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bool init();
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int registerEventsFromSubsystemAndGetFd(std::vector<std::string> &subsystemList) override;
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dev_t getEventGenerationSourceDevice(void *dev) override;
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const char *getEventType(void *dev) override;
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const char *getEventPropertyValue(void *dev, const char *key) override;
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void *allocateDeviceToReceiveData() override;
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void dropDeviceReference(void *dev) override;
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protected:
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pUdevNew pUdevNewEntry = nullptr;
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pUdevMonitorNewFromNetlink pUdevMonitorNewFromNetlinkEntry = nullptr;
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pUdevMonitorFilterAddMatchSubsystemDevtype pUdevMonitorFilterAddMatchSubsystemDevtypeEntry = nullptr;
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pUdevMonitorEnableReceiving pUdevMonitorEnableReceivingEntry = nullptr;
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pUdevMonitorGetFd pUdevMonitorGetFdEntry = nullptr;
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pUdevMonitorReceiveDevice pUdevMonitorReceiveDeviceEntry = nullptr;
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pUdevDeviceGetDevnum pUdevDeviceGetDevnumEntry = nullptr;
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pUdevDeviceGetAction pUdevDeviceGetActionEntry = nullptr;
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pUdevDeviceGetPropertyValue pUdevDeviceGetPropertyValueEntry = nullptr;
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pUdevDeviceUnref pUdevDeviceUnrefEntry = nullptr;
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private:
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struct udev_monitor *mon = nullptr;
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};
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} // namespace Sysman
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} // namespace L0
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