/** Called when asyn clients call pasynInt32->write().
* This function performs actions for some parameters, including NDReadFile, NDWriteFile and NDFileCapture.
* For other parameters it calls NDPluginDriver::writeInt32 to see if that method understands the parameter.
* For all parameters it sets the value in the parameter library and calls any registered callbacks..
* \param[in] pasynUser pasynUser structure that encodes the reason and address.
* \param[in] value Value to write. */
asynStatus NDPluginFile::writeInt32(asynUser *pasynUser, epicsInt32 value)
{
int function = pasynUser->reason;
asynStatus status = asynSuccess;
const char* functionName = "writeInt32";
/* Set the parameter in the parameter library. */
status = (asynStatus) setIntegerParam(function, value);
if (function == NDWriteFile) {
if (value) {
/* Call the callbacks so the status changes */
callParamCallbacks();
if (this->pArrays[0]) {
status = writeFileBase();
} else {
asynPrint(pasynUser, ASYN_TRACE_ERROR,
"%s:%s: ERROR, no valid array to write",
driverName, functionName);
status = asynError;
}
/* Set the flag back to 0, since this could be a busy record */
setIntegerParam(NDWriteFile, 0);
}
} else if (function == NDReadFile) {
if (value) {
/* Call the callbacks so the status changes */
callParamCallbacks();
status = readFileBase();
/* Set the flag back to 0, since this could be a busy record */
setIntegerParam(NDReadFile, 0);
}
} else if (function == NDFileCapture) {
/* Must call doCapture if capturing was just started or stopped */
status = doCapture(value);
} else {
/* This was not a parameter that this driver understands, try the base class */
if (function <= LAST_NDPLUGIN_PARAM) status = NDPluginDriver::writeInt32(pasynUser, value);
}
/* Do callbacks so higher layers see any changes */
status = callParamCallbacks();
if (status)
asynPrint(pasynUser, ASYN_TRACE_ERROR,
"%s:%s error, status=%d function=%d, value=%d\n",
driverName, functionName, status, function, value);
else
asynPrint(pasynUser, ASYN_TRACEIO_DRIVER,
"%s:%s: function=%d, value=%d\n",
driverName, functionName, function, value);
return status;
}
/** Called when asyn clients call pasynInt32->write().
* This function performs actions for some parameters, including NDReadFile, NDWriteFile and NDFileCapture.
* For other parameters it calls NDPluginDriver::writeInt32 to see if that method understands the parameter.
* For all parameters it sets the value in the parameter library and calls any registered callbacks..
* \param[in] pasynUser pasynUser structure that encodes the reason and address.
* \param[in] value Value to write. */
asynStatus NDPluginFile::writeInt32(asynUser *pasynUser, epicsInt32 value)
{
int function = pasynUser->reason;
asynStatus status = asynSuccess;
static const char* functionName = "writeInt32";
/* Set the parameter in the parameter library. */
status = (asynStatus) setIntegerParam(function, value);
if (function == NDWriteFile) {
if (value) {
/* Call the callbacks so the status changes */
callParamCallbacks();
if (this->pArrays[0]) {
status = writeFileBase();
} else {
asynPrint(pasynUser, ASYN_TRACE_ERROR,
"%s::%s: ERROR, no valid array to write",
driverName, functionName);
status = asynError;
}
/* Set the flag back to 0, since this could be a busy record */
setIntegerParam(NDWriteFile, 0);
}
} else if (function == NDReadFile) {
if (value) {
/* Call the callbacks so the status changes */
callParamCallbacks();
status = readFileBase();
/* Set the flag back to 0, since this could be a busy record */
setIntegerParam(NDReadFile, 0);
}
} else if (function == NDFileCapture) {
if (value) { // Started capture or stream
// Reset the value temporarily until the doCapture() has called the
// inherited openFile() method and the writer is in a good state to
// start writing frames.
// See comments on: https://github.com/areaDetector/ADCore/pull/100
setIntegerParam(NDFileCapture, 0);
/* Latch the NDFileLazyOpen parameter so that we don't need to care
* if the user modifies this parameter before first frame has arrived. */
int paramFileLazyOpen = 0;
getIntegerParam(NDFileLazyOpen, ¶mFileLazyOpen);
this->lazyOpen = (paramFileLazyOpen != 0);
/* So far everything is OK, so we just clear the FileWriteStatus parameters */
setIntegerParam(NDFileWriteStatus, NDFileWriteOK);
setStringParam(NDFileWriteMessage, "");
setStringParam(NDFullFileName, "");
}
/* Must call doCapture if capturing was just started or stopped */
status = doCapture(value);
if (status == asynSuccess) {
if (this->lazyOpen) setStringParam(NDFileWriteMessage, "Lazy Open...");
setIntegerParam(NDFileCapture, value);
} else {
setIntegerParam(NDFileCapture, 0);
}
} else {
/* This was not a parameter that this driver understands, try the base class */
status = NDPluginDriver::writeInt32(pasynUser, value);
}
/* Do callbacks so higher layers see any changes */
status = callParamCallbacks();
if (status)
asynPrint(pasynUser, ASYN_TRACE_ERROR,
"%s::%s error, status=%d function=%d, value=%d\n",
driverName, functionName, status, function, value);
else
asynPrint(pasynUser, ASYN_TRACEIO_DRIVER,
"%s::%s: function=%d, value=%d\n",
driverName, functionName, function, value);
return status;
}
