107 lines
3.0 KiB
C++
Executable File

/**
\file mainClient.cpp
This file is an example of how to implement the slsDetectorUsers class
You can compile it linking it to the slsDetector library
g++ mainClient.cpp -L lib -lSlsDetector -L/usr/lib64/ -L lib2 -lzmq -pthread -lrt -lm -lstdc++
where,
lib is the location of libSlsDetector.so
lib2 is the location of the libzmq.a.
[ libzmq.a is required only when using data call backs and enabling data streaming from receiver to client.
It is linked in manual/manual-api from slsReceiverSoftware/include ]
*/
#include "slsDetectorUsers.h"
#include "detectorData.h"
#include <iostream>
#include <cstdlib>
/**
* Data Call back function defined
* @param pData pointer to data structure received from the call back
* @param iframe frame number of data passed
* @param isubframe sub frame number of data passed ( only valid for EIGER in 32 bit mode)
* @param pArg pointer to object
* \returns integer that is currently ignored
*/
int dataCallback(detectorData *pData, int iframe, int isubframe, void *pArg)
{
std::cout << " DataCallback:"
<< "\n nx : " << pData->npoints
<< "\n ny : " << pData->npy
<< "\n Frame number : " << iframe << std::endl;
}
/**
* Example of a main program using the slsDetectorUsers class
*
* - Arguments are optional
* - argv[1] : Configuration File
* - argv[2] : Measurement Setup File
* - argv[3] : Detector Id (default is zero)
*/
int main(int argc, char **argv) {
/** - if specified, set ID from argv[3] */
int id=0;
if (argc>=4)
id=atoi(argv[3]);
/** - slsDetectorUsers Object is instantiated with appropriate ID */
int ret = 1;
slsDetectorUsers *pDetector = new slsDetectorUsers (ret, id);
if (ret == 1) {
std::cout << "Error: Could not instantiate slsDetectorUsers" << std::endl;
return EXIT_FAILURE;
}
/** - if specified, load configuration file (necessary at least the first time it is called to properly configure advanced settings in the shared memory) */
if (argc>=2){
pDetector->readConfigurationFile(argv[1]);
std::cout << "Detector configured" << std::endl;
}
/** - set detector in shared memory online (in case no config file was used) */
pDetector->setOnline(1);
/** - set receiver in shared memory online (in case no config file was used) */
pDetector->setReceiverOnline(1);
/** - registering data callback */
pDetector->registerDataCallback(&dataCallback, NULL);
/** - ensuring detector status is idle before starting acquisition. exiting if not idle */
int status = pDetector->getDetectorStatus();
if (status != 0){
std::cout << "Detector not ready: " << slsDetectorUsers::runStatusType(status) << std::endl;
return 1;
}
/** - if provided, load detector settings */
if (argc>=3){
pDetector->retrieveDetectorSetup(argv[2]);
std::cout << "Detector measurement set-up done" << std::endl;
}
/** - start measurement */
pDetector->startMeasurement();
std::cout << "measurement finished" << std::endl;
/** - returning when acquisition is finished or data are avilable */
/** - delete slsDetectorUsers object */
delete pDetector;
return 0;
}