minix/lib/syslib/sys_setalarm.c

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#include "syslib.h"
/*===========================================================================*
* sys_setalarm *
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*===========================================================================*/
PUBLIC int sys_setalarm(proc_nr, exp_time, abs_time)
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int proc_nr; /* process to send SYN_ALARM message to */
clock_t exp_time; /* expiration time for the alarm */
int abs_time; /* use absolute or relative expiration time */
{
/* Ask the SYSTEM schedule a synchronous alarm for the caller. The process
* number can be SELF if the caller doesn't know its process number.
*/
message m;
m.ALRM_PROC_NR = proc_nr; /* receiving process */
m.ALRM_EXP_TIME = exp_time; /* the expiration time */
m.ALRM_ABS_TIME = abs_time; /* time is absolute? */
return _taskcall(SYSTASK, SYS_SETALARM, &m);
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}