198c976f7e
that passes signal map along. This mechanisms is also used for nonuser signals like SIGKMESS, SIGKSTOP, SIGKSIG. Revised comments of many system call handlers. Renamed setpriority to nice.
38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
/* The system call that is implemented in this file:
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* m_type: SYS_ENDKSIG
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*
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* The parameters for this system call are:
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* m2_i1: SIG_PROC # process for which PM is done
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*/
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#include "../system.h"
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#include <signal.h>
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#include <sys/sigcontext.h>
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#if USE_ENDKSIG
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/*===========================================================================*
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* do_endksig *
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*===========================================================================*/
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PUBLIC int do_endksig(m_ptr)
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message *m_ptr; /* pointer to request message */
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{
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/* Finish up after a kernel type signal, caused by a SYS_KILL message or a
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* call to cause_sig by a task. This is called by the PM after processing a
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* signal it got with SYS_GETKSIG.
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*/
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register struct proc *rp;
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rp = proc_addr(m_ptr->SIG_PROC);
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if (isemptyp(rp)) return(EINVAL); /* process already dead? */
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/* PM has finished one kernel signal. Perhaps process is ready now? */
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if (! (rp->p_rts_flags & SIGNALED)) /* new signal arrived */
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if ((rp->p_rts_flags &= ~SIG_PENDING)==0) /* remove pending flag */
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lock_ready(rp); /* ready if no flags */
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return(OK);
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}
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#endif /* USE_ENDKSIG */
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