process only one epoll event at a time

if we ask for more than one from the kernel we might need to check for
the validity of the ptr element since event might be processed after its
ptr was already destructed.

1 files changed, 9 insertions, 9 deletions

diff --git a/manager.c b/manager.c
index f15cf79869..cd97e67da5 100644
--- a/manager.c
+++ b/manager.c
@@ -1084,12 +1084,12 @@ int manager_loop(Manager *m) {
         assert(m);
 
         for (;;) {
-                struct epoll_event events[32];
-                int n, i;
+                struct epoll_event event;
+                int n;
 
                 manager_dispatch_run_queue(m);
 
-                if ((n = epoll_wait(m->epoll_fd, events, ELEMENTSOF(events), -1)) < 0) {
+                if ((n = epoll_wait(m->epoll_fd, &event, 1, -1)) < 0) {
 
                         if (errno == -EINTR)
                                 continue;
@@ -1097,12 +1097,12 @@ int manager_loop(Manager *m) {
                         return -errno;
                 }
 
-                for (i = 0; i < n; i++) {
-                        if ((r = process_event(m, events + i, &quit)) < 0)
-                                return r;
+                assert(n == 1);
 
-                        if (quit)
-                                return 0;
-                }
+                if ((r = process_event(m, &event, &quit)) < 0)
+                        return r;
+
+                if (quit)
+                        return 0;
         }
 }