This is the class from which NDArray drivers are derived; implements the asynGenericPointer functions for NDArray objects. More...

#include <asynNDArrayDriver.h>

Inheritance diagram for asynNDArrayDriver:

Public Member Functions
	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	readInt32 (asynUser pasynUser, epicsInt32 value)
	Called when asyn clients call pasynInt32->read(). More...

virtual asynStatus	readFloat64 (asynUser pasynUser, epicsFloat64 value)
	Called when asyn clients call pasynFloat64->read(). More...

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

Public Member Functions inherited from asynPortDriver
	asynPortDriver (const char *portName, int maxAddr, int paramTableSize, int interfaceMask, int interruptMask, int asynFlags, int autoConnect, int priority, int stackSize)
	Constructor for the asynPortDriver class. More...

virtual	~asynPortDriver ()
	Destructor for asynPortDriver class; frees resources allocated when port driver is created. More...

virtual asynStatus	lock ()
	Locks the driver to prevent multiple threads from accessing memory at the same time. More...

virtual asynStatus	unlock ()
	Unlocks the driver; called when an asyn client or driver is done accessing common memory. More...

virtual asynStatus	getAddress (asynUser pasynUser, int address)
	Returns the asyn address associated with a pasynUser structure. More...

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

virtual asynStatus	readUInt32Digital (asynUser pasynUser, epicsUInt32 value, epicsUInt32 mask)
	Called when asyn clients call pasynUInt32Digital->read(). More...

virtual asynStatus	writeUInt32Digital (asynUser *pasynUser, epicsUInt32 value, epicsUInt32 mask)
	Called when asyn clients call pasynUInt32Digital->write(). More...

virtual asynStatus	setInterruptUInt32Digital (asynUser *pasynUser, epicsUInt32 mask, interruptReason reason)
	Called when asyn clients call pasynUInt32Digital->setInterrupt(). More...

virtual asynStatus	clearInterruptUInt32Digital (asynUser *pasynUser, epicsUInt32 mask)
	Called when asyn clients call pasynUInt32Digital->clearInterrupt(). More...

virtual asynStatus	getInterruptUInt32Digital (asynUser pasynUser, epicsUInt32 mask, interruptReason reason)
	Called when asyn clients call pasynUInt32Digital->getInterrupt(). More...

virtual asynStatus	getBounds (asynUser pasynUser, epicsInt32 low, epicsInt32 *high)
	Called when asyn clients call pasynInt32->getBounds(), returning the bounds on the asynInt32 interface for drivers that use raw units. More...

virtual asynStatus	writeFloat64 (asynUser *pasynUser, epicsFloat64 value)
	Called when asyn clients call pasynFloat64->write(). More...

virtual asynStatus	readOctet (asynUser pasynUser, char value, size_t maxChars, size_t nActual, int eomReason)
	Called when asyn clients call pasynOctet->read(). More...

virtual asynStatus	flushOctet (asynUser *pasynUser)
	Called when asyn clients call pasynOctet->flush(). More...

virtual asynStatus	setInputEosOctet (asynUser pasynUser, const char eos, int eosLen)
	Called when asyn clients call pasynOctet->setInputEos(). More...

virtual asynStatus	getInputEosOctet (asynUser pasynUser, char eos, int eosSize, int *eosLen)
	Called when asyn clients call pasynOctet->getInputEos(). More...

virtual asynStatus	setOutputEosOctet (asynUser pasynUser, const char eos, int eosLen)
	Called when asyn clients call pasynOctet->setOutputEos(). More...

virtual asynStatus	getOutputEosOctet (asynUser pasynUser, char eos, int eosSize, int *eosLen)
	Called when asyn clients call pasynOctet->getOutputEos(). More...

virtual asynStatus	readInt8Array (asynUser pasynUser, epicsInt8 value, size_t nElements, size_t *nIn)
	Called when asyn clients call pasynInt8Array->read(). More...

virtual asynStatus	writeInt8Array (asynUser pasynUser, epicsInt8 value, size_t nElements)
	Called when asyn clients call pasynInt8Array->write(). More...

virtual asynStatus	doCallbacksInt8Array (epicsInt8 *value, size_t nElements, int reason, int addr)
	Called by driver to do the callbacks to registered clients on the asynInt8Array interface. More...

virtual asynStatus	readInt16Array (asynUser pasynUser, epicsInt16 value, size_t nElements, size_t *nIn)
	Called when asyn clients call pasynInt16Array->read(). More...

virtual asynStatus	writeInt16Array (asynUser pasynUser, epicsInt16 value, size_t nElements)
	Called when asyn clients call pasynInt16Array->write(). More...

virtual asynStatus	doCallbacksInt16Array (epicsInt16 *value, size_t nElements, int reason, int addr)
	Called by driver to do the callbacks to registered clients on the asynInt16Array interface. More...

virtual asynStatus	readInt32Array (asynUser pasynUser, epicsInt32 value, size_t nElements, size_t *nIn)
	Called when asyn clients call pasynInt32Array->read(). More...

virtual asynStatus	writeInt32Array (asynUser pasynUser, epicsInt32 value, size_t nElements)
	Called when asyn clients call pasynInt32Array->write(). More...

virtual asynStatus	doCallbacksInt32Array (epicsInt32 *value, size_t nElements, int reason, int addr)
	Called by driver to do the callbacks to registered clients on the asynInt32Array interface. More...

virtual asynStatus	readFloat32Array (asynUser pasynUser, epicsFloat32 value, size_t nElements, size_t *nIn)
	Called when asyn clients call pasynFloat32Array->read(). More...

virtual asynStatus	writeFloat32Array (asynUser pasynUser, epicsFloat32 value, size_t nElements)
	Called when asyn clients call pasynFloat32Array->write(). More...

virtual asynStatus	doCallbacksFloat32Array (epicsFloat32 *value, size_t nElements, int reason, int addr)
	Called by driver to do the callbacks to registered clients on the asynFloat32Array interface. More...

virtual asynStatus	readFloat64Array (asynUser pasynUser, epicsFloat64 value, size_t nElements, size_t *nIn)
	Called when asyn clients call pasynFloat64Array->read(). More...

virtual asynStatus	writeFloat64Array (asynUser pasynUser, epicsFloat64 value, size_t nElements)
	Called when asyn clients call pasynFloat64Array->write(). More...

virtual asynStatus	doCallbacksFloat64Array (epicsFloat64 *value, size_t nElements, int reason, int addr)
	Called by driver to do the callbacks to registered clients on the asynFloat64Array interface. More...

virtual asynStatus	doCallbacksGenericPointer (void *pointer, int reason, int addr)
	Called by driver to do the callbacks to registered clients on the asynGenericPointer interface. More...

virtual asynStatus	readOption (asynUser pasynUser, const char key, char *value, int maxChars)
	Called when asyn clients call pasynOption->read(). More...

virtual asynStatus	writeOption (asynUser pasynUser, const char key, const char *value)
	Called when asyn clients call pasynOption->write(). More...

virtual asynStatus	readEnum (asynUser pasynUser, char strings[], int values[], int severities[], size_t nElements, size_t *nIn)
	Called when asyn clients call pasynEnum->read(). More...

virtual asynStatus	writeEnum (asynUser pasynUser, char strings[], int values[], int severities[], size_t nElements)
	Called when asyn clients call pasynEnum->write(). More...

virtual asynStatus	doCallbacksEnum (char *strings[], int values[], int severities[], size_t nElements, int reason, int addr)
	Called by driver to do the callbacks to registered clients on the asynEnum interface. More...

virtual asynStatus	drvUserCreate (asynUser pasynUser, const char drvInfo, const char *pptypeName, size_t psize)
	Called by asynManager to pass a pasynUser structure and drvInfo string to the driver; Assigns pasynUser->reason based on the value of the drvInfo string. More...

virtual asynStatus	drvUserGetType (asynUser pasynUser, const char pptypeName, size_t psize)
	Returns strings associated with driver-specific commands. More...

virtual asynStatus	drvUserDestroy (asynUser *pasynUser)
	Frees any resources allocated by drvUserCreate. More...

virtual asynStatus	connect (asynUser *pasynUser)
	Connects driver to device; The base class implementation simply calls pasynManager->exceptionConnect if address is valid Derived classes can reimplement this function for real connection management. More...

virtual asynStatus	disconnect (asynUser *pasynUser)
	Disconnects driver from device; the base class implementation simply calls pasynManager->exceptionDisconnect. More...

virtual asynStatus	createParam (const char name, asynParamType type, int index)
	Creates a parameter in the parameter library. More...

virtual asynStatus	createParam (int list, const char name, asynParamType type, int index)
	Creates a parameter in the parameter library. More...

virtual asynStatus	findParam (const char name, int index)
	Finds a parameter in the parameter library. More...

virtual asynStatus	findParam (int list, const char name, int index)
	Finds a parameter in the parameter library. More...

virtual asynStatus	getParamName (int index, const char **name)
	Returns the name of a parameter in the parameter library. More...

virtual asynStatus	getParamName (int list, int index, const char **name)
	Returns the name of a parameter in the parameter library. More...

virtual asynStatus	setParamStatus (int index, asynStatus status)
	Sets the status for a parameter in the parameter library. More...

virtual asynStatus	setParamStatus (int list, int index, asynStatus status)
	Sets the status for a parameter in the parameter library. More...

virtual asynStatus	getParamStatus (int index, asynStatus *status)
	Gets the status for a parameter in the parameter library. More...

virtual asynStatus	getParamStatus (int list, int index, asynStatus *status)
	Gets the status for a parameter in the parameter library. More...

virtual asynStatus	setParamAlarmStatus (int index, int status)
	Sets the alarmStatus for a parameter in the parameter library. More...

virtual asynStatus	setParamAlarmStatus (int list, int index, int status)
	Sets the alarmStatus for a parameter in the parameter library. More...

virtual asynStatus	getParamAlarmStatus (int index, int *status)
	Gets the alarmStatus for a parameter in the parameter library. More...

virtual asynStatus	getParamAlarmStatus (int list, int index, int *status)
	Gets the alarmStatus for a parameter in the parameter library. More...

virtual asynStatus	setParamAlarmSeverity (int index, int severity)
	Sets the alarmSeverity for a parameter in the parameter library. More...

virtual asynStatus	setParamAlarmSeverity (int list, int index, int severity)
	Sets the alarmSeverity for a parameter in the parameter library. More...

virtual asynStatus	getParamAlarmSeverity (int index, int *severity)
	Gets the alarmSeverity for a parameter in the parameter library. More...

virtual asynStatus	getParamAlarmSeverity (int list, int index, int *severity)
	Gets the alarmSeverity for a parameter in the parameter library. More...

virtual void	reportSetParamErrors (asynStatus status, int index, int list, const char *functionName)
	Reports errors when setting parameters. More...

virtual void	reportGetParamErrors (asynStatus status, int index, int list, const char *functionName)
	Reports errors when getting parameters. 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	setUIntDigitalParam (int index, epicsUInt32 value, epicsUInt32 valueMask)
	Sets the value for a UInt32Digital in the parameter library. More...

virtual asynStatus	setUIntDigitalParam (int list, int index, epicsUInt32 value, epicsUInt32 valueMask)
	Sets the value for a UInt32Digital in the parameter library. More...

virtual asynStatus	setUIntDigitalParam (int index, epicsUInt32 value, epicsUInt32 valueMask, epicsUInt32 interruptMask)
	Sets the value for a UInt32Digital in the parameter library. More...

virtual asynStatus	setUIntDigitalParam (int list, int index, epicsUInt32 value, epicsUInt32 valueMask, epicsUInt32 interruptMask)
	Sets the value for a UInt32Digital in the parameter library. More...

virtual asynStatus	setUInt32DigitalInterrupt (int index, epicsUInt32 mask, interruptReason reason)
	Sets the interrupt mask and reason in the parameter library Calls paramList::setUInt32Interrupt (0, index, mask, reason) i.e. More...

virtual asynStatus	setUInt32DigitalInterrupt (int list, int index, epicsUInt32 mask, interruptReason reason)
	Sets the interrupt mask and reason in the parameter library Calls paramList::setUInt32Interrupt (index, mask, reason) for the parameter list indexed by list. More...

virtual asynStatus	clearUInt32DigitalInterrupt (int index, epicsUInt32 mask)
	Clears the interrupt mask in the parameter library Calls paramList::clearUInt32Interrupt (0, index, mask) i.e. More...

virtual asynStatus	clearUInt32DigitalInterrupt (int list, int index, epicsUInt32 mask)
	Clears the interrupt mask in the parameter library Calls paramList::clearUInt32Interrupt (index, mask) for the parameter list indexed by list. More...

virtual asynStatus	getUInt32DigitalInterrupt (int index, epicsUInt32 *mask, interruptReason reason)
	Gets the interrupt mask and reason in the parameter library Calls paramList::getUInt32Interrupt (0, index, mask, reason) i.e. More...

virtual asynStatus	getUInt32DigitalInterrupt (int list, int index, epicsUInt32 *mask, interruptReason reason)
	Gets the interrupt mask and reason in the parameter library Calls paramList::getUInt32Interrupt (index, mask, reason) for the parameter list indexed by list. More...

virtual asynStatus	setDoubleParam (int index, double value)
	Sets the value for a double in the parameter library. More...

virtual asynStatus	setDoubleParam (int list, int index, double value)
	Sets the value for a double in the parameter library. More...

virtual asynStatus	setStringParam (int index, const char *value)
	Sets the value for a string in the parameter library. More...

virtual asynStatus	setStringParam (int list, int index, const char *value)
	Sets the value for a string in the parameter library. More...

virtual asynStatus	setStringParam (int index, const std::string &value)
	Sets the value for a string in the parameter library. More...

virtual asynStatus	setStringParam (int list, int index, const std::string &value)
	Sets the value for a string in the parameter library. More...

virtual asynStatus	getIntegerParam (int index, int *value)
	Returns the value for an integer from the parameter library. More...

virtual asynStatus	getIntegerParam (int list, int index, int *value)
	Returns the value for an integer from the parameter library. More...

virtual asynStatus	getUIntDigitalParam (int index, epicsUInt32 *value, epicsUInt32 mask)
	Returns the value for an UInt32Digital parameter from the parameter library. More...

virtual asynStatus	getUIntDigitalParam (int list, int index, epicsUInt32 *value, epicsUInt32 mask)
	Returns the value for an UInt32Digital parameter from the parameter library. More...

virtual asynStatus	getDoubleParam (int index, double *value)
	Returns the value for a double from the parameter library. More...

virtual asynStatus	getDoubleParam (int list, int index, double *value)
	Returns the value for a double from the parameter library. More...

virtual asynStatus	getStringParam (int index, int maxChars, char *value)
	Returns the value for a string from the parameter library. More...

virtual asynStatus	getStringParam (int list, int index, int maxChars, char *value)
	Returns the value for a string from the parameter library. More...

virtual asynStatus	getStringParam (int index, std::string &value)
	Returns the value for a string from the parameter library. More...

virtual asynStatus	getStringParam (int list, int index, std::string &value)
	Returns the value for a string from the parameter library. More...

virtual asynStatus	callParamCallbacks ()
	Calls callParamCallbacks(0, 0) i.e. More...

virtual asynStatus	callParamCallbacks (int addr)
	Calls callParamCallbacks(addr, addr) i.e. More...

virtual asynStatus	callParamCallbacks (int list, int addr)
	Calls paramList::callCallbacks(addr) for a specific parameter list. More...

virtual asynStatus	updateTimeStamp ()
	Updates the timestamp for this port in pasynManager. More...

virtual asynStatus	updateTimeStamp (epicsTimeStamp *pTimeStamp)
	Updates the timestamp for this port in pasynManager, and returns this timestamp. More...

virtual asynStatus	getTimeStamp (epicsTimeStamp *pTimeStamp)
	Gets the most recent timestamp for this port from pasynManager. More...

virtual asynStatus	setTimeStamp (const epicsTimeStamp *pTimeStamp)
	Sets the timestamp for this port in pasynManager. More...

asynStandardInterfaces *	getAsynStdInterfaces ()
	Returns the asynStdInterfaces structure used by asynPortDriver. More...

virtual void	reportParams (FILE *fp, int details)
	Calls paramList::report(fp, details) for each parameter list that the driver supports. More...

void	callbackTask ()

Protected Attributes
int	NDPortNameSelf

int	NDADCoreVersion

int	NDDriverVersion

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	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	NDFileCapture

int	NDFileDeleteDriverFile

int	NDFileLazyOpen

int	NDFileCreateDir

int	NDFileTempSuffix

int	NDAttributesFile

int	NDAttributesStatus

int	NDAttributesMacros

int	NDArrayData

int	NDArrayCallbacks

int	NDPoolMaxBuffers

int	NDPoolAllocBuffers

int	NDPoolFreeBuffers

int	NDPoolMaxMemory

int	NDPoolUsedMemory

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

NDArrayPool *	pNDArrayPool
	An NDArrayPool object used to allocate and manipulate NDArray objects. More...

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

int	threadStackSize_

int	threadPriority_

Protected Attributes inherited from asynPortDriver
asynUser *	pasynUserSelf
	asynUser connected to ourselves for asynTrace More...

asynStandardInterfaces	asynStdInterfaces
	The asyn interfaces this driver implements. More...

Additional Inherited Members
Public Attributes inherited from asynPortDriver
char *	portName
	The name of this asyn port. More...

int	maxAddr
	The maximum asyn address (addr) supported by this driver. More...

Detailed Description

This is the class from which NDArray drivers are derived; implements the asynGenericPointer functions for NDArray objects.

For areaDetector, both plugins and detector drivers are indirectly derived from this class. asynNDArrayDriver inherits from asynPortDriver.

Constructor & Destructor Documentation

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.

portName, maxAddr, interfaceMask, interruptMask, asynFlags, autoConnect, priority and stackSize are simply passed to asynPortDriver::asynPortDriver. asynNDArrayDriver creates an NDArrayPool object to allocate NDArray objects. maxBuffers and maxMemory are passed to NDArrayPool::NDArrayPool.

Parameters

[in]	portName	The name of the asyn port driver to be created.
[in]	maxAddr	The maximum number of asyn addr addresses this driver supports. 1 is minimum.
[in]	maxBuffers	The maximum number of NDArray buffers that the NDArrayPool for this driver is allowed to allocate. Set this to 0 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 0 to allow an unlimited amount of memory.
[in]	interfaceMask	Bit mask defining the asyn interfaces that this driver supports.
[in]	interruptMask	Bit mask definining the asyn interfaces that can generate interrupts (callbacks)
[in]	asynFlags	Flags when creating the asyn port driver; includes ASYN_CANBLOCK and ASYN_MULTIDEVICE.
[in]	autoConnect	The autoConnect flag for the asyn port driver.
[in]	priority	The thread priority for the asyn port driver thread if ASYN_CANBLOCK is set in asynFlags. This value should also be used for any other threads this object creates.
[in]	stackSize	The stack size for the asyn port driver thread if ASYN_CANBLOCK is set in asynFlags. This value should also be used for any other threads this object creates.

asynNDArrayDriver::~asynNDArrayDriver ( )

virtual

Member Function Documentation

asynStatus asynNDArrayDriver::checkPath ( )

virtual

Checks whether the directory specified NDFilePath parameter exists.

This is a convenience function that determinesthe directory specified NDFilePath parameter exists. It sets the value of NDFilePathExists to 0 (does not exist) or 1 (exists). It also adds a trailing '/' character to the path if one is not present. Returns a error status if the directory does not exist.

asynStatus asynNDArrayDriver::createFileName	(	int	maxChars,
		char *	fullFileName
	)

virtual

Build a file name from component parts.

Parameters

[in]	maxChars	The size of the fullFileName string.
[out]	fullFileName	The constructed file name including the file path.

This is a convenience function that constructs a complete file name from the NDFilePath, NDFileName, NDFileNumber, and NDFileTemplate parameters. If NDAutoIncrement is true then it increments the NDFileNumber after creating the file name.

asynStatus asynNDArrayDriver::createFileName	(	int	maxChars,
		char *	filePath,
		char *	fileName
	)

virtual

Build a file name from component parts.

Parameters

[in]	maxChars	The size of the fullFileName string.
[out]	filePath	The file path.
[out]	fileName	The constructed file name without file file path.

This is a convenience function that constructs a file path and file name from the NDFilePath, NDFileName, NDFileNumber, and NDFileTemplate parameters. If NDAutoIncrement is true then it increments the NDFileNumber after creating the file name.

asynStatus asynNDArrayDriver::createFilePath	(	const char *	path,
		int	pathDepth
	)

virtual

Function to create a directory path for a file.

Parameters

[in]	path	Path to create. The final part is the file name and is not created.
[in]	pathDepth	This determines how much of the path to assume exists before attempting to create directories: pathDepth = 0 create no directories pathDepth = 1 create all directories needed (i.e. only assume root directory exists). pathDepth = 2 Assume 1 directory below the root directory exists pathDepth = -1 Assume all but one direcory exists pathDepth = -2 Assume all but two directories exist.

asynStatus asynNDArrayDriver::getAttributes ( NDAttributeList * pList )

virtual

Get the current values of attributes from this driver and appends them to an output attribute list.

Calls NDAttributeList::updateValues for this driver's attribute list, and then NDAttributeList::copy, to copy this driver's attribute list to pList, appending the values to that output attribute list.

Parameters

[out] pList The NDAttributeList to copy the attributes to.

NOTE: Plugins must never call this function with a pointer to the attribute list from the NDArray they were passed in NDPluginDriver::processCallbacks, because that modifies the original NDArray which is forbidden.

asynStatus asynNDArrayDriver::readFloat64	(	asynUser *	pasynUser,
		epicsFloat64 *	value
	)

virtual

Called when asyn clients call pasynFloat64->read().

The base class implementation simply returns the value from the parameter library. Derived classes rarely need to reimplement this function.

Parameters

[in]	pasynUser	pasynUser structure that encodes the reason and address.
[in]	value	Address of the value to read.

Reimplemented from asynPortDriver.

asynStatus asynNDArrayDriver::readGenericPointer	(	asynUser *	pasynUser,
		void *	genericPointer
	)

virtual

This method copies an NDArray object from the asynNDArrayDriver to an NDArray pointer passed in by the caller.

The destination NDArray address is passed by the caller in the genericPointer argument. The caller must allocate the memory for the array, and pass the size in NDArray->dataSize. The method will limit the amount of data copied to the actual array size or the input dataSize, whichever is smaller.

Parameters

[in]	pasynUser	Used to obtain the addr for the NDArray to be copied from, and for asynTrace output.
[out]	genericPointer	Pointer to an NDArray. The NDArray must have been previously allocated by the caller. The NDArray from the asynNDArrayDriver will be copied into the NDArray pointed to by genericPointer.

Reimplemented from asynPortDriver.

asynStatus asynNDArrayDriver::readInt32	(	asynUser *	pasynUser,
		epicsInt32 *	value
	)

virtual

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

The base class implementation simply returns the value from the parameter library. Derived classes rarely need to reimplement this function.

Parameters

[in]	pasynUser	pasynUser structure that encodes the reason and address.
[out]	value	Address of the value to read.

Reimplemented from asynPortDriver.

asynStatus asynNDArrayDriver::readNDAttributesFile ( )

virtual

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.

These attributes can then be associated with an NDArray by calling asynNDArrayDriver::getAttributes() passing it pNDArray->pAttributeList.

The following simple example XML file illustrates the way that both PVAttribute and paramAttribute attributes are defined.

<?xml version="1.0" standalone="no" ?>
<Attributes>
<Attribute name="AcquireTime"         type="EPICS_PV" source="13SIM1:cam1:AcquireTime"      dbrtype="DBR_NATIVE"  description="Camera acquire time"/>
<Attribute name="CameraManufacturer"  type="PARAM"    source="MANUFACTURER"                 datatype="STRING"     description="Camera manufacturer"/>
</Attributes>

Each NDAttribute (currently either an PVAttribute or paramAttribute, but other types may be added in the future) is defined with an XML Attribute tag. For each attribute there are a number of XML attributes (unfortunately there are 2 meanings of attribute here: the NDAttribute and the XML attribute). XML attributes have the syntax name="value". The XML attribute names are case-sensitive and must be lower case, i.e. name="xxx", not NAME="xxx". The XML attribute values are specified by the XML Schema and are always uppercase for datatype and dbrtype attributes. The XML attribute names are listed here:

name determines the name of the NDAttribute. It is required, must be unique, is case-insensitive, and must start with a letter. It can include only letters, numbers and underscore. (No whitespace or other punctuation.)

type determines the type of the NDAttribute. "EPICS_PV" creates a PVAttribute, while "PARAM" creates a paramAttribute. The default is EPICS_PV if this XML attribute is absent.

source determines the source of the NDAttribute. It is required. If type="EPICS_PV" then this is the name of the EPICS PV, which is case-sensitive. If type="PARAM" then this is the drvInfo string that is used in EPICS database files (e.g. ADBase.template) to identify this parameter.

dbrtype determines the data type that will be used to read an EPICS_PV value with channel access. It can be one of the standard EPICS DBR types (e.g. "DBR_DOUBLE", "DBR_STRING", ...) or it can be the special type "DBR_NATIVE" which means to use the native channel access data type for this PV. The default is DBR_NATIVE if this XML attribute is absent. Always use uppercase.

datatype determines the parameter data type for type="PARAM". It must match the actual data type in the driver or plugin parameter library, and must be "INT", "DOUBLE", or "STRING". The default is "INT" if this XML attribute is absent. Always use uppercase.

addr determines the asyn addr (address) for type="PARAM". The default is 0 if the XML attribute is absent.

description determines the description for this attribute. It is not required, and the default is a NULL string.

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

virtual

Report status of the driver.

This method calls the report function in the asynPortDriver base class. It then calls the NDArrayPool::report() method if details >5.

Parameters

[in]	fp	File pointed passed by caller where the output is written to.
[in]	details	If >5 then NDArrayPool::report and NDAttributeList::report are both called.

Reimplemented from asynPortDriver.

Reimplemented in NDDxp.

asynStatus asynNDArrayDriver::writeGenericPointer	(	asynUser *	pasynUser,
		void *	genericPointer
	)

virtual

This method currently does nothing, but it should be implemented in this base class.

Derived classes can implement this method as required.

Parameters

[in]	pasynUser	Used to obtain the addr for the NDArray to be copied to, and for asynTrace output.
[in]	genericPointer	Pointer to an NDArray. The NDArray pointed to by genericPointer will be copied into the NDArray in asynNDArrayDriver .

Reimplemented from asynPortDriver.

asynStatus asynNDArrayDriver::writeOctet	(	asynUser *	pasynUser,
		const char *	value,
		size_t	nChars,
		size_t *	nActual
	)

virtual

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

This function performs actions for some parameters, including NDAttributesFile. 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	Address of the string to write.
[in]	nChars	Number of characters to write.
[out]	nActual	Number of characters actually written.

Reimplemented from asynPortDriver.

Member Data Documentation

int asynNDArrayDriver::NDADCoreVersion

protected

int asynNDArrayDriver::NDArrayCallbacks

protected

int asynNDArrayDriver::NDArrayCounter

protected

int asynNDArrayDriver::NDArrayData

protected

int asynNDArrayDriver::NDArraySize

protected

int asynNDArrayDriver::NDArraySizeX

protected

int asynNDArrayDriver::NDArraySizeY

protected

int asynNDArrayDriver::NDArraySizeZ

protected

int asynNDArrayDriver::NDAttributesFile

protected

int asynNDArrayDriver::NDAttributesMacros

protected

int asynNDArrayDriver::NDAttributesStatus

protected

int asynNDArrayDriver::NDAutoIncrement

protected

int asynNDArrayDriver::NDAutoSave

protected

int asynNDArrayDriver::NDBayerPattern

protected

int asynNDArrayDriver::NDColorMode

protected

int asynNDArrayDriver::NDDataType

protected

int asynNDArrayDriver::NDDimensions

protected

int asynNDArrayDriver::NDDriverVersion

protected

int asynNDArrayDriver::NDEpicsTSNsec

protected

int asynNDArrayDriver::NDEpicsTSSec

protected

int asynNDArrayDriver::NDFileCapture

protected

int asynNDArrayDriver::NDFileCreateDir

protected

int asynNDArrayDriver::NDFileDeleteDriverFile

protected

int asynNDArrayDriver::NDFileFormat

protected

int asynNDArrayDriver::NDFileLazyOpen

protected

int asynNDArrayDriver::NDFileName

protected

int asynNDArrayDriver::NDFileNumber

protected

int asynNDArrayDriver::NDFileNumCapture

protected

int asynNDArrayDriver::NDFileNumCaptured

protected

int asynNDArrayDriver::NDFilePath

protected

int asynNDArrayDriver::NDFilePathExists

protected

int asynNDArrayDriver::NDFileTemplate

protected

int asynNDArrayDriver::NDFileTempSuffix

protected

int asynNDArrayDriver::NDFileWriteMessage

protected

int asynNDArrayDriver::NDFileWriteMode

protected

int asynNDArrayDriver::NDFileWriteStatus

protected

int asynNDArrayDriver::NDFullFileName

protected

int asynNDArrayDriver::NDNDimensions

protected

int asynNDArrayDriver::NDPoolAllocBuffers

protected

int asynNDArrayDriver::NDPoolFreeBuffers

protected

int asynNDArrayDriver::NDPoolMaxBuffers

protected

int asynNDArrayDriver::NDPoolMaxMemory

protected

int asynNDArrayDriver::NDPoolUsedMemory

protected

int asynNDArrayDriver::NDPortNameSelf

protected

int asynNDArrayDriver::NDReadFile

protected

int asynNDArrayDriver::NDTimeStamp

protected

int asynNDArrayDriver::NDUniqueId

protected

int asynNDArrayDriver::NDWriteFile

protected

NDArray** asynNDArrayDriver::pArrays

protected

An array of NDArray pointers used to store data in the driver.

class NDAttributeList* asynNDArrayDriver::pAttributeList

protected

An NDAttributeList object used to obtain the current values of a set of attributes.

NDArrayPool* asynNDArrayDriver::pNDArrayPool

protected

An NDArrayPool object used to allocate and manipulate NDArray objects.

int asynNDArrayDriver::threadPriority_

protected

int asynNDArrayDriver::threadStackSize_

protected

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

/home/epics/devel/areaDetector/ADCore/ADApp/ADSrc/asynNDArrayDriver.h
/home/epics/devel/areaDetector/ADCore/ADApp/ADSrc/asynNDArrayDriver.cpp

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation