27 lines
942 B
C
27 lines
942 B
C
#include "syslib.h"
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/*===========================================================================*
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* sys_signalrm *
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*===========================================================================*/
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PUBLIC int sys_signalrm(proc_nr, ticks)
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int proc_nr; /* process to send SYN_ALARM message to */
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clock_t *ticks; /* how many ticks / return ticks left here */
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{
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/* Ask the clock to schedule a synchronous alarm for the caller. The process
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* number can be SELF if the caller doesn't know its process number.
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*/
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message m;
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int s;
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m.m_type= SYS_SIGNALRM; /* the alarm type requested */
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m.ALRM_PROC_NR = proc_nr; /* receiving process */
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m.ALRM_EXP_TIME = *ticks; /* the expiration time */
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m.ALRM_ABS_TIME = 0; /* ticks are relative to now */
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s = _taskcall(SYSTASK, SYS_SIGNALRM, &m);
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*ticks = m.ALRM_TIME_LEFT; /* returned by SYSTEM task */
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return s;
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}
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