lvwdog.h

相机传输图像程序源代码 拜耳模式（RAW格式文件）与RGB图像数据互相转换函数库

#ifndef ___LVWDOG_H
#define ___LVWDOG_H

#include <dsylib.h>
#include <lvpackon.h>

/** @defgroup WD_resolutions WatchDog resolutions */
//@{
/** WatchDog resolution - seconds */
#define LvWD_Res_Second 0
/** WatchDog resolution - minutes */
#define LvWD_Res_Minute 0x80000000
//@}


#define LvWD_Flag_UserReset 0x00000001

/** Represents a system watchdog.
 * The watchdog timer is a system device that is used to monitor a PC in
 * order to ensure maximum system availability. If the hardware or software
 * locks up then the watchdog can automatically reset the PC. A watchdog
 * can be used in critical applications in order to minimize the time the PC is,
 * for whatever reason, not available and running, especially for systems that
 * are not continuously monitored by an operator.\n
 * \n
 * By combining watchdog handling and hardware monitoring through the
 * system health status functionality improves the system reliability in hard
 * environment conditions.\n
 * \n
 * Objects belonging to the LvWatchDogTimer class represent a watchdog
 * timer present in the system.\n
 * \n
 * Currently, LVSDS supports LvWatchDogTimer objects for LVmPC systems.
 */
class LvWatchDogTimer {
    private:
        INTHANDLE Th;
        DWORD     ThId;

    protected:
        HDEVICE   hDevice;
        U8BIT     Module;
        INTHANDLE hEvent;
        U32BIT    Timeout;
        U32BIT    Flags;
        U32BIT    Command;

        CRITICAL_SECTION CmdCs;

        LvWatchDogTimer(HDEVICE, U8BIT);
        ~LvWatchDogTimer(void);

    public:
        friend LVDSYAPI(void) DsyClose(void);
        #ifdef _LVDSY_
        friend void LvDsyBuildWatchDogList(void);
        #ifndef __WIN3264__
        friend int FAR PASCAL LibMain(HINSTANCE, WORD, WORD, LPSTR);
        #else
        #ifdef _MSC_VER
        friend BOOL WINAPI DllMain(HINSTANCE,DWORD,LPVOID);
        #else
        friend BOOL WINAPI DllEntryPoint (HINSTANCE, DWORD, LPVOID);
        #endif
        #endif
        #endif

        /** Enable the WatchDog timer.
         * Enables or resets a watchdog timer. The function sets up the initial count
         * for the watchdog timer and enables it.
         * @param Seconds The amount of seconds or minutes to set in the watchdog timer
         * @param Flags Reserved for future use
         * @sa Disable(), Reset()
         */
        LVSTATUS Enable(U32BIT Seconds, U32BIT Flags);
        
        /** Disable the WatchDog timer.
         * Disables a running watchdog timer.
         * @return @ref ErrorDefinitions
         * @sa Enable(), Reset()
         */
        LVSTATUS Disable(void);
        
        /** Resets the watchdog.
         * Disables a running watchdog timer.
         * @return @ref ErrorDefinitions
         * @sa Enable(), Disable()
         */
        LVSTATUS Reset(void);


        /** Retrieves the watchdog resolution.
         * Returns the watchdog timer resolution, one of the @ref LvWD_Res_Second or @ref LvWD_Res_Minute
         * @return @ref LvWD_Res_Second if seconds are used for resolution, other @ref LvWD_Res_Minute
         * @sa Enable(), Disable()
         */
        U32BIT GetResolution(void);
        
        /** Retrieves the watchdog count left.
         * Gets the remaining count for the watchdog timer.
         * @return the remaining count for the watchdog timer
         * @sa Enable(), Disable(), Reset()
         */
        U32BIT GetRemainingCount(void);
        
        /** Retrieves the actual watchdog timeout.
         * Returns the initial timeout for the watchdog timer.
         * @return the initial timeout for the watchdog timer
         * @sa Enable(), Disable()
         */
        U32BIT GetActualTimeout(void);

        DWORD WDThread(void);
    };

#include <lvpackof.h>

#endif