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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <pcilib.h>
#include <pcilib/error.h>
void log_error(void *arg, const char *file, int line, pcilib_log_priority_t prio, const char *format, va_list ap) {
vprintf(format, ap);
printf("\n");
if (prio == PCILIB_LOG_ERROR) {
printf("Exiting at [%s:%u]\n\n", file, line);
exit(-1);
}
}
static int StopFlag = 0;
static void signal_exit_handler(int signo) {
if (++StopFlag > 2)
exit(-1);
}
int evcb(pcilib_event_id_t evid, const pcilib_event_info_t *info, void *user) {
int err;
pcilib_t *pcilib = (pcilib_t*)user;
void *data;
size_t datasize;
static size_t packets = 0;
static size_t size = 0;
static struct timeval last = {0};
struct timeval cur;
size_t us = 0;
data = pcilib_get_data(pcilib, evid, PCILIB_EVENT_DATA, &datasize);
if (!data) pcilib_error("Error getting event data");
gettimeofday(&cur,NULL);
if (last.tv_sec > 0)
us = (cur.tv_sec - last.tv_sec)*1000000 + (cur.tv_usec - last.tv_usec);
packets++;
size += datasize;
if ((!us)||(StopFlag)||(us > 1000000)) {
printf("Received %zu packets with total size of %zu MB (last size: %zu)\n", packets, size/1024/1024, datasize);
memcpy(&last, &cur, sizeof(struct timeval));
packets = 0;
size = 0;
}
err = pcilib_return_data(pcilib, evid, PCILIB_EVENT_DATA, data);
if (err) pcilib_error("Error returning data, data is possibly corrupted");
return StopFlag?PCILIB_STREAMING_STOP:PCILIB_STREAMING_CONTINUE;
}
int main() {
int err;
signal(SIGINT, signal_exit_handler);
pcilib_set_logger(PCILIB_LOG_WARNING, &log_error, NULL);
pcilib_t *pcilib = pcilib_open("/dev/fpga0", "pcidev");
if (!pcilib) pcilib_error("Error opening device");
// pcilib_context_t *evdev = (pcilib_context_t*)pcilib_get_event_engine(pcilib);
// if (!evdev) pcilib_error("Failed to get event engine");
err = pcilib_start(pcilib, PCILIB_EVENTS_ALL, PCILIB_EVENT_FLAGS_DEFAULT);
if (err) pcilib_error("Error (%i) starting event engine", err);
// err = pcilib_trigger(pcilib, PCILIB_EVENT0, 0, NULL);
// if (err) pcilib_error("Error (%i) triggering event", err);
err = pcilib_stream(pcilib, evcb, pcilib);
if (err) pcilib_error("Error (%i) streaming events", err);
pcilib_stop(pcilib, PCILIB_EVENT_FLAGS_DEFAULT);
}
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