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#include <pthread.h>
#include <unistd.h>
#include <signal.h>
#include "fifoqueue.h"
#include "broevent.h"
#include "midbro.h"
#ifdef BROCCOLI
#include <broccoli.h>
#endif
Fifo_q * queue;
pthread_t event_listener;
sigset_t signal_set;
void
sigint_handler(int signal)
{
printf("\nStatistics:\n"
"Total values received: %d\n"
"Total values dropped: %d\n"
"Total values released: %d\n"
"Maximum buffer utilization: %d\n"
"Buffer fixed size: %d\n"
"Buffer size upon termination: %d\n",
queue->valuesReceived, queue->droppedValues,
queue->valuesReleased, queue->largestBufferSize,
queue->maxSize, queue->currentSize);
exit(0);
}
void
request_n_values(int number, int arrayOfValues[])
{
int i;
Sensor_t * sensor;
for(i=0; i<number; ++i){
sensor = pop_from_queue(queue);
arrayOfValues[i] = sensor->value;
free(sensor);
}
printf("Release %d sensor data values\n", number);
}
int
request_value()
{
int value;
Sensor_t * sensor;
sensor = pop_from_queue(queue);
value = sensor->value;
free(sensor);
printf("Release 1 sensor data value\n");
return value;
}
void
start_data_capture()
{
int res;
queue = init_queue(500); /* Initiate queue with fixed size */
/* Create producer thread that listen for bro events */
sigemptyset(&signal_set);
sigaddset(&signal_set, SIGINT);
res = pthread_sigmask(SIG_BLOCK, &signal_set, NULL);
if(res != 0)
perror("SIGINT block");
res = pthread_create(&event_listener, NULL, bro_event_listener, queue);
if(res){
perror("Unable to create thread");
exit(-1);
}
res = pthread_sigmask(SIG_UNBLOCK, &signal_set, NULL);
if(res != 0)
perror("SIGINT unblock");
signal(SIGINT, sigint_handler);
}
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