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/* Time module */
#include "allobjects.h"
#include "modsupport.h"
#include "sigtype.h"
#include <signal.h>
#include <setjmp.h>
#ifdef __STDC__
#include <time.h>
#else /* !__STDC__ */
typedef unsigned long time_t;
extern time_t time();
#endif /* !__STDC__ */
/* Time methods */
static object *
time_time(self, args)
object *self;
object *args;
{
long secs;
if (!getnoarg(args))
return NULL;
secs = time((time_t *)NULL);
return newintobject(secs);
}
static jmp_buf sleep_intr;
static void
sleep_catcher(sig)
int sig;
{
longjmp(sleep_intr, 1);
}
static object *
time_sleep(self, args)
object *self;
object *args;
{
int secs;
SIGTYPE (*sigsave)();
if (!getintarg(args, &secs))
return NULL;
if (setjmp(sleep_intr)) {
signal(SIGINT, sigsave);
err_set(KeyboardInterrupt);
return NULL;
}
sigsave = signal(SIGINT, SIG_IGN);
if (sigsave != (SIGTYPE (*)()) SIG_IGN)
signal(SIGINT, sleep_catcher);
sleep(secs);
signal(SIGINT, sigsave);
INCREF(None);
return None;
}
#ifdef THINK_C
#define DO_MILLI
#endif /* THINK_C */
#ifdef AMOEBA
#define DO_MILLI
extern long sys_milli();
#define millitimer sys_milli
#endif /* AMOEBA */
#ifdef BSD_TIME
#define DO_MILLI
#endif /* BSD_TIME */
#ifdef DO_MILLI
static object *
time_millisleep(self, args)
object *self;
object *args;
{
long msecs;
SIGTYPE (*sigsave)();
if (!getlongarg(args, &msecs))
return NULL;
if (setjmp(sleep_intr)) {
signal(SIGINT, sigsave);
err_set(KeyboardInterrupt);
return NULL;
}
sigsave = signal(SIGINT, SIG_IGN);
if (sigsave != (SIGTYPE (*)()) SIG_IGN)
signal(SIGINT, sleep_catcher);
millisleep(msecs);
signal(SIGINT, sigsave);
INCREF(None);
return None;
}
static object *
time_millitimer(self, args)
object *self;
object *args;
{
long msecs;
extern long millitimer();
if (!getnoarg(args))
return NULL;
msecs = millitimer();
return newintobject(msecs);
}
#endif /* DO_MILLI */
static struct methodlist time_methods[] = {
#ifdef DO_MILLI
{"millisleep", time_millisleep},
{"millitimer", time_millitimer},
#endif /* DO_MILLI */
{"sleep", time_sleep},
{"time", time_time},
{NULL, NULL} /* sentinel */
};
void
inittime()
{
initmodule("time", time_methods);
}
#ifdef THINK_C
#define MacTicks (* (long *)0x16A)
static
sleep(msecs)
int msecs;
{
register long deadline;
deadline = MacTicks + msecs * 60;
while (MacTicks < deadline) {
if (intrcheck())
sleep_catcher(SIGINT);
}
}
static
millisleep(msecs)
long msecs;
{
register long deadline;
deadline = MacTicks + msecs * 3 / 50; /* msecs * 60 / 1000 */
while (MacTicks < deadline) {
if (intrcheck())
sleep_catcher(SIGINT);
}
}
static long
millitimer()
{
return MacTicks * 50 / 3; /* MacTicks * 1000 / 60 */
}
#endif /* THINK_C */
#ifdef BSD_TIME
#include <sys/types.h>
#include <sys/time.h>
static long
millitimer()
{
struct timeval t;
struct timezone tz;
if (gettimeofday(&t, &tz) != 0)
return -1;
return t.tv_sec*1000 + t.tv_usec/1000;
}
static
millisleep(msecs)
long msecs;
{
struct timeval t;
t.tv_sec = msecs/1000;
t.tv_usec = (msecs%1000)*1000;
(void) select(0, (fd_set *)0, (fd_set *)0, (fd_set *)0, &t);
}
#endif /* BSD_TIME */
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