#include <stdlib.h>
#include "erl_driver.h"

typedef struct _erl_drv_data ExitDrvData;

static ExitDrvData *exit_drv_start(ErlDrvPort port, char *command);
static void         exit_drv_stop(ExitDrvData *data_p);
static void         exit_drv_output(ExitDrvData *data_p, char *buf, int len);
static void         exit_drv_finish(void);
static int          exit_drv_control(ExitDrvData *data_p, unsigned int command,
				     char *buf, int len,
				     char **rbuf, int rlen);

static ErlDrvEntry exit_drv_entry = { 
    NULL, /* init */
    exit_drv_start,
    exit_drv_stop,
    exit_drv_output,
    NULL, /* ready_input */
    NULL, /* ready_output */
    "exit_drv",
    exit_drv_finish,
    NULL, /* handle */
    exit_drv_control,
    NULL, /* timeout */
    NULL, /* outputv */
    NULL  /* ready_async */
};

DRIVER_INIT(exit_drv)
{
    return &exit_drv_entry;
}

static ExitDrvData *
exit_drv_start(ErlDrvPort port, char *command)
{
    return (ExitDrvData *) port;
}

static void 
exit_drv_stop(ExitDrvData *datap)
{

}

static void
exit_drv_output(ExitDrvData *datap, char *buf, int len)
{
    driver_exit((ErlDrvPort) datap, 0);
}

static void
exit_drv_finish(void)
{

}

static int
exit_drv_control(ExitDrvData *datap,
		 unsigned int command,
		 char *buf,
		 int len,
		 char **rbuf,
		 int rlen)
{
    return 0;
}