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Annotation of lucent/sys/src/cmd/rc/trap.c, revision 1.1

1.1     ! root        1: #include "rc.h"
        !             2: #include "exec.h"
        !             3: #include "fns.h"
        !             4: #include "io.h"
        !             5: char *Signame[];
        !             6: void dotrap(void){
        !             7:        register int i;
        !             8:        register struct var *trapreq;
        !             9:        register struct word *starval;
        !            10:        starval=vlook("*")->val;
        !            11:        while(ntrap) for(i=0;i!=NSIG;i++) while(trap[i]){
        !            12:                --trap[i];
        !            13:                --ntrap;
        !            14:                if(getpid()!=mypid) Exit(getstatus());
        !            15:                trapreq=vlook(Signame[i]);
        !            16:                if(trapreq->fn){
        !            17:                        start(trapreq->fn, trapreq->pc, (struct var *)0);
        !            18:                        runq->local=newvar(strdup("*"), runq->local);
        !            19:                        runq->local->val=copywords(starval, (struct word *)0);
        !            20:                        runq->local->changed=1;
        !            21:                        runq->redir=runq->startredir=0;
        !            22:                }
        !            23:                else if(i==SIGINT || i==SIGQUIT){
        !            24:                        /*
        !            25:                         * run the stack down until we uncover the
        !            26:                         * command reading loop.  Xreturn will exit
        !            27:                         * if there is none (i.e. if this is not
        !            28:                         * an interactive rc.)
        !            29:                         */
        !            30:                        while(!runq->iflag) Xreturn();
        !            31:                }
        !            32:                else Exit(getstatus());
        !            33:        }
        !            34: }

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