28 lines
571 B
C
28 lines
571 B
C
#include "syslib.h"
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int sys_vtimer(proc, which, newval, oldval)
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endpoint_t proc; /* proc to retrieve/set the timer for */
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int which; /* timer to retrieve/set */
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clock_t *newval; /* if non-NULL, set to this new value */
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clock_t *oldval; /* if non-NULL, old value is stored here */
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{
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message m;
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int r;
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m.VT_ENDPT = proc;
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m.VT_WHICH = which;
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if (newval != NULL) {
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m.VT_SET = 1;
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m.VT_VALUE = *newval;
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} else {
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m.VT_SET = 0;
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}
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r = _kernel_call(SYS_VTIMER, &m);
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if (oldval != NULL) {
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*oldval = m.VT_VALUE;
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}
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return(r);
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}
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