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/*
* uw_clk - timer support for UW
*
* Copyright 1986 by John D. Bruner. All rights reserved. Permission to
* copy this program is given provided that the copy is not sold and that
* this copyright notice is included.
*/
#ifndef UW_CLK
#define UW_CLK
/*
* Events which are supposed to occur at a certain time are handled by
* setting "timeout"s. The list of timeouts is sorted in order of
* occurrence. The "alarm" mechanism is used to send SIGALRM when the
* first timeout expires. However, the timeout is not processed
* immediately. Instead, it will be processed upon exit from the
* select() in main(). This prevents timeouts from happening at
* inappropriate times.
*
* The resolution of timeouts is in seconds. The server doesn't need
* any better resolution, and this allows all of the hair associated with
* (struct timeval) and (struct itimerval) types to be avoided.
*/
#define CLK_HZ 1 /* one tick/second */
typedef long toarg_t;
struct timeout {
struct timeout *to_next;
time_t to_when;
void (*to_fn)();
toarg_t to_arg;
};
extern int timer_rdy;
#define CLK_CHECK() if (timer_rdy) clk_service(); else
#endif
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.