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