/* $Id: tdaq.c,v 1.3 2003/03/29 06:18:42 wafer Exp $ */

/* These routines know how to run turbo-daq */

#include <pthread.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <errno.h>

#include "inst.h"

static char _tdaq_running = 0;
static char _tdaq_exited = 0;

static pthread_mutex_t _mut;
static pthread_t _thr;

void *tdaq_start (void *);

int tdaq_init () 
{
     int err;

     /* get a mutex */
     if (err = pthread_mutex_init(&_mut, NULL)) {
	  fprintf(stderr, "%s", strerror(err));
	  exit(1);
     }
     
     /* start up a thread that watches over turbo-daq */
     if (err = pthread_create(&_thr, NULL, tdaq_start, NULL)) {
	  fprintf(stderr, "%s", strerror(err));
	  exit(1);
     }

     return 0;
}

void *tdaq_start (void *p)
{
     pid_t pid = fork();
     int err;
     int status;
     
     if (pid == -1) {
	  fprintf(stderr, "%s", strerror(err));
	  exit(1);
     } else if (pid == 0) {
/*  	  execl("/cygdrive/c/johannes-tdaq/TurboDAQ_3.6/TurboDAQ.exe",  */
	  execl("/bin/ls", 
		"ls", ".", NULL);
	  fprintf(stderr, "execl: %s", strerror(errno));
     } else {
	  if (waitpid(pid, &status, 0) == -1) {
	       fprintf(stderr, "%s", strerror(errno));
	       exit(1);
	  }
	  printf("Done executing tdaq\n");
     }

     return NULL;
}