#include "config.h"
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include "gmp.h"
#include "gmp-impl.h"
#include "tests.h"
#if ! HAVE_ALARM || ! defined (SIGALRM)
#define alarm(n) abort()
#define signal(sig,func) SIG_ERR
#endif
unsigned long spinner_count = 0;
int spinner_wanted = -1;
int spinner_tick = 1;
RETSIGTYPE
spinner_signal (int signum)
{
spinner_tick = 1;
if (signal (SIGALRM, spinner_signal) == SIG_ERR)
{
printf ("spinner_signal(): Oops, cannot reinstall SIGALRM\n");
abort ();
}
alarm (1);
}
#define SPINNER_WANTED_INIT() \
if (spinner_wanted < 0) spinner_init ()
void
spinner_init (void)
{
spinner_wanted = isatty (fileno (stdout));
if (spinner_wanted == -1)
abort ();
if (!spinner_wanted)
return;
if (signal (SIGALRM, spinner_signal) == SIG_ERR)
{
printf ("(no spinner)\r");
spinner_tick = 0;
return;
}
alarm (1);
setbuf (stdout, NULL);
}
void
spinner (void)
{
static const char data[] = { '|', '/', '-', '\\' };
static int pos = 0;
char buf[128];
SPINNER_WANTED_INIT ();
if (spinner_tick)
{
buf[0] = data[pos];
pos = (pos + 1) % numberof (data);
spinner_tick = 0;
if (spinner_count != 0)
{
sprintf (buf+1, " %lu\r", spinner_count);
}
else
{
buf[1] = '\r';
buf[2] = '\0';
}
fputs (buf, stdout);
}
}