ref: 065c3557af8de1b20d94c2e86a4a29c5d33ccc67
dir: /sys/src/cmd/rc/trap.c/
#include "rc.h"
#include "exec.h"
#include "fns.h"
#include "io.h"
extern char *Signame[];
void
dotrap(void)
{
int i;
struct var *trapreq;
struct word *starval;
starval = vlook("*")->val;
while(ntrap) for(i = 0;i!=NSIG;i++) while(trap[i]){
--trap[i];
--ntrap;
if(getpid()!=mypid) Exit(getstatus());
trapreq = vlook(Signame[i]);
if(trapreq->fn){
start(trapreq->fn, trapreq->pc, (struct var *)0);
runq->local = newvar("*", runq->local);
runq->local->val = copywords(starval, (struct word *)0);
runq->local->changed = 1;
runq->redir = runq->startredir = 0;
}
else if(i==SIGINT || i==SIGQUIT){
/*
* run the stack down until we uncover the
* command reading loop. Xreturn will exit
* if there is none (i.e. if this is not
* an interactive rc.)
*/
while(!runq->iflag) Xreturn();
}
else Exit(getstatus());
}
}