channel: fix the issue of epoll_wait interrupted by signal

The epoll_wait syscall would be interrupted by signal, thus it's better to ignore this interrupted error. Fixes: #779 Signed-off-by: fupan.lfp <[email protected]>
kata-containers · May 7, 2020 · 1eb1abe · 1eb1abe
1 parent f481f6b
commit 1eb1abe
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/channel.go b/channel.go
@@ -14,6 +14,7 @@ import (
 	"os"
 	"path/filepath"
 	"strings"
+	"syscall"
 	"time"
 
 	"github.com/hashicorp/yamux"
@@ -194,6 +195,10 @@ func (c *serialChannel) wait() error {
 	for {
 		nev, err := unix.EpollWait(epfd, events[:], -1)
 		if err != nil {
+			if err == syscall.EINTR {
+				continue
+			}
+
 			return err
 		}