URL driver; reads images from URLs, such as Web cameras and Axis video servers, but also files, etc. More...

Inheritance diagram for URLDriver:

Public Member Functions
	URLDriver (const char *portName, int maxBuffers, size_t maxMemory, int priority, int stackSize)
	Constructor for URLDriver; most parameters are simply passed to ADDriver::ADDriver. More...

virtual asynStatus	writeInt32 (asynUser *pasynUser, epicsInt32 value)
	Called when asyn clients call pasynInt32->write(). More...

virtual void	report (FILE *fp, int details)
	Report status of the driver. More...

void	URLTask ()
	Should be private, but gets called from C, so must be public. More...

Public Member Functions inherited from ADDriver
	ADDriver (const char *portName, int maxAddr, int numParams, int maxBuffers, size_t maxMemory, int interfaceMask, int interruptMask, int asynFlags, int autoConnect, int priority, int stackSize)
	All of the arguments are simply passed to the constructor for the asynNDArrayDriver base class, except numParams. More...

virtual asynStatus	connect (asynUser *pasynUser)
	Connects driver to device; This method is called when the driver's pasynCommon->connect() function is called. More...

virtual void	setShutter (int open)
	Set the shutter position. More...

Public Member Functions inherited from asynNDArrayDriver
	asynNDArrayDriver (const char *portName, int maxAddr, int maxBuffers, size_t maxMemory, int interfaceMask, int interruptMask, int asynFlags, int autoConnect, int priority, int stackSize)
	This is the constructor for the asynNDArrayDriver class. More...

virtual	~asynNDArrayDriver ()

virtual asynStatus	writeOctet (asynUser pasynUser, const char value, size_t maxChars, size_t *nActual)
	Called when asyn clients call pasynOctet->write(). More...

virtual asynStatus	readGenericPointer (asynUser pasynUser, void genericPointer)
	This method copies an NDArray object from the asynNDArrayDriver to an NDArray pointer passed in by the caller. More...

virtual asynStatus	writeGenericPointer (asynUser pasynUser, void genericPointer)
	This method currently does nothing, but it should be implemented in this base class. More...

virtual asynStatus	setIntegerParam (int index, int value)
	Sets the value for an integer in the parameter library. More...

virtual asynStatus	setIntegerParam (int list, int index, int value)
	Sets the value for an integer in the parameter library. More...

virtual asynStatus	createFilePath (const char *path, int pathDepth)
	Function to create a directory path for a file. More...

virtual asynStatus	checkPath ()
	Checks whether the directory specified NDFilePath parameter exists. More...

virtual bool	checkPath (std::string &filePath)
	Checks whether the directory specified exists. More...

virtual asynStatus	createFileName (int maxChars, char *fullFileName)
	Build a file name from component parts. More...

virtual asynStatus	createFileName (int maxChars, char filePath, char fileName)
	Build a file name from component parts. More...

virtual asynStatus	readNDAttributesFile ()
	Create this driver's NDAttributeList (pAttributeList) by reading an XML file This clears any existing attributes from this drivers' NDAttributeList and then creates a new list based on the XML file. More...

virtual asynStatus	getAttributes (NDAttributeList *pAttributeList)
	Get the current values of attributes from this driver and appends them to an output attribute list. More...

virtual void	updateTimeStamps (NDArray *pArray)

asynStatus	incrementQueuedArrayCount ()

asynStatus	decrementQueuedArrayCount ()

int	getQueuedArrayCount ()

void	updateQueuedArrayCount ()

Protected Attributes
int	URLName

Protected Attributes inherited from ADDriver
int	ADGain

int	ADBinX

int	ADBinY

int	ADMinX

int	ADMinY

int	ADSizeX

int	ADSizeY

int	ADMaxSizeX

int	ADMaxSizeY

int	ADReverseX

int	ADReverseY

int	ADFrameType

int	ADImageMode

int	ADNumExposures

int	ADNumExposuresCounter

int	ADNumImages

int	ADNumImagesCounter

int	ADAcquireTime

int	ADAcquirePeriod

int	ADTimeRemaining

int	ADStatus

int	ADTriggerMode

int	ADShutterControl

int	ADShutterControlEPICS

int	ADShutterStatus

int	ADShutterMode

int	ADShutterOpenDelay

int	ADShutterCloseDelay

int	ADTemperature

int	ADTemperatureActual

int	ADReadStatus

int	ADStatusMessage

int	ADStringToServer

int	ADStringFromServer

bool	deviceIsReachable

Protected Attributes inherited from asynNDArrayDriver
int	NDPortNameSelf

int	NDADCoreVersion

int	NDDriverVersion

int	ADManufacturer

int	ADModel

int	ADSerialNumber

int	ADSDKVersion

int	ADFirmwareVersion

int	ADAcquire

int	ADAcquireBusy

int	ADWaitForPlugins

int	NDArraySizeX

int	NDArraySizeY

int	NDArraySizeZ

int	NDArraySize

int	NDNDimensions

int	NDDimensions

int	NDDataType

int	NDColorMode

int	NDUniqueId

int	NDTimeStamp

int	NDEpicsTSSec

int	NDEpicsTSNsec

int	NDBayerPattern

int	NDCodec

int	NDCompressedSize

int	NDArrayCounter

int	NDFilePath

int	NDFilePathExists

int	NDFileName

int	NDFileNumber

int	NDFileTemplate

int	NDAutoIncrement

int	NDFullFileName

int	NDFileFormat

int	NDAutoSave

int	NDWriteFile

int	NDReadFile

int	NDFileWriteMode

int	NDFileWriteStatus

int	NDFileWriteMessage

int	NDFileNumCapture

int	NDFileNumCaptured

int	NDFileFreeCapture

int	NDFileCapture

int	NDFileDeleteDriverFile

int	NDFileLazyOpen

int	NDFileCreateDir

int	NDFileTempSuffix

int	NDAttributesFile

int	NDAttributesStatus

int	NDAttributesMacros

int	NDArrayData

int	NDArrayCallbacks

int	NDPoolMaxBuffers

int	NDPoolAllocBuffers

int	NDPoolPreAllocBuffers

int	NDPoolNumPreAllocBuffers

int	NDPoolFreeBuffers

int	NDPoolMaxMemory

int	NDPoolUsedMemory

int	NDPoolEmptyFreeList

int	NDPoolPollStats

int	NDNumQueuedArrays

class NDArray **	pArrays
	An array of NDArray pointers used to store data in the driver. More...

class NDAttributeList *	pAttributeList
	An NDAttributeList object used to obtain the current values of a set of attributes. More...

int	threadStackSize_

int	threadPriority_

Additional Inherited Members
Public Attributes inherited from asynNDArrayDriver
class NDArrayPool *	pNDArrayPool
	An NDArrayPool pointer that is initialized to pNDArrayPoolPvt_ in the constructor. More...

Detailed Description

URL driver; reads images from URLs, such as Web cameras and Axis video servers, but also files, etc.

Constructor & Destructor Documentation

◆ URLDriver()

URLDriver::URLDriver	(	const char *	portName,
		int	maxBuffers,
		size_t	maxMemory,
		int	priority,
		int	stackSize
	)

Constructor for URLDriver; most parameters are simply passed to ADDriver::ADDriver.

After calling the base class constructor this method creates a thread to read the URL images, and sets reasonable default values for parameters defined in this class, asynNDArrayDriver and ADDriver.

Parameters

[in]	portName	The name of the asyn port driver to be created.
[in]	maxBuffers	The maximum number of NDArray buffers that the NDArrayPool for this driver is allowed to allocate. Set this to -1 to allow an unlimited number of buffers.
[in]	maxMemory	The maximum amount of memory that the NDArrayPool for this driver is allowed to allocate. Set this to -1 to allow an unlimited amount of memory.
[in]	priority	The thread priority for the asyn port driver thread if ASYN_CANBLOCK is set in asynFlags.
[in]	stackSize	The stack size for the asyn port driver thread if ASYN_CANBLOCK is set in asynFlags.

Member Function Documentation

◆ report()

void URLDriver::report	(	FILE *	fp,
		int	details
	)

virtual

Report status of the driver.

Prints details about the driver if details>0. It then calls the ADDriver::report() method.

Parameters

[in]	fp	File pointed passed by caller where the output is written to.
[in]	details	If >0 then driver details are printed.

Reimplemented from asynNDArrayDriver.

◆ URLTask()

void URLDriver::URLTask ( )

Should be private, but gets called from C, so must be public.

This thread calls computeImage to compute new image data and does the callbacks to send it to higher layers.

It implements the logic for single, multiple or continuous acquisition.

◆ writeInt32()

asynStatus URLDriver::writeInt32	(	asynUser *	pasynUser,
		epicsInt32	value
	)

virtual

Called when asyn clients call pasynInt32->write().

This function performs actions for some parameters, including ADAcquire, ADColorMode, etc. For all parameters it sets the value in the parameter library and calls any registered callbacks..

Parameters

[in]	pasynUser	pasynUser structure that encodes the reason and address.
[in]	value	Value to write.

Reimplemented from ADDriver.

Member Data Documentation

◆ URLName

int URLDriver::URLName

protected

The documentation for this class was generated from the following file:

/home/runner/work/areaDetector/areaDetector/ADURL/urlApp/src/URLDriver.cpp

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ URLDriver()

Member Function Documentation

◆ report()

◆ URLTask()

◆ writeInt32()

Member Data Documentation

◆ URLName