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Diffstat (limited to 'pipe.c')
-rw-r--r--pipe.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/pipe.c b/pipe.c
index 7ef89e2..923e609 100644
--- a/pipe.c
+++ b/pipe.c
@@ -86,7 +86,7 @@ pipe_write(struct pipe *p, char *addr, int n)
for(i = 0; i < n; i++){
while(((p->writep + 1) % PIPESIZE) == p->readp){
- if(p->readopen == 0){
+ if(p->readopen == 0 || curproc[cpu()]->killed){
release(&p->lock);
return -1;
}
@@ -110,7 +110,7 @@ pipe_read(struct pipe *p, char *addr, int n)
acquire(&p->lock);
while(p->readp == p->writep){
- if(p->writeopen == 0){
+ if(p->writeopen == 0 || curproc[cpu()]->killed){
release(&p->lock);
return 0;
}