sd-rtnl: make string returned by sd_rtnl_message_read_string() const

[elogind.git] / src / libsystemd / sd-event / sd-event.c

diff --git a/src/libsystemd/sd-event/sd-event.c b/src/libsystemd/sd-event/sd-event.c
index 53f1904d3de828dcf56b62bcdb81bcdd42423361..9a9664cc0039b69170d18e9de9b3ae472e3c7750 100644 (file)
--- a/src/libsystemd/sd-event/sd-event.c
+++ b/src/libsystemd/sd-event/sd-event.c
@@ -1282,7 +1282,8 @@ _public_ int sd_event_source_set_io_events(sd_event_source *s, uint32_t events)
         assert_return(s->event->state != SD_EVENT_FINISHED, -ESTALE);
         assert_return(!event_pid_changed(s->event), -ECHILD);
 
-        if (s->io.events == events)
+        /* edge-triggered updates are never skipped, so we can reset edges */
+        if (s->io.events == events && !(events & EPOLLET))
                 return 0;
 
         if (s->enabled != SD_EVENT_OFF) {
@@ -1918,14 +1919,13 @@ static int process_signal(sd_event *e, uint32_t events) {
         int r;
 
         assert(e);
-        assert(e->signal_sources);
 
         assert_return(events == EPOLLIN, -EIO);
 
         for (;;) {
                 struct signalfd_siginfo si;
                 ssize_t ss;
-                sd_event_source *s;
+                sd_event_source *s = NULL;
 
                 ss = read(e->signal_fd, &si, sizeof(si));
                 if (ss < 0) {
@@ -1940,16 +1940,19 @@ static int process_signal(sd_event *e, uint32_t events) {
 
                 read_one = true;
 
-                s = e->signal_sources[si.ssi_signo];
                 if (si.ssi_signo == SIGCHLD) {
                         r = process_child(e);
                         if (r < 0)
                                 return r;
-                        if (r > 0 || !s)
+                        if (r > 0)
                                 continue;
-                } else
-                        if (!s)
-                                return -EIO;
+                }
+
+                if (e->signal_sources)
+                        s = e->signal_sources[si.ssi_signo];
+
+                if (!s)
+                        continue;
 
                 s->signal.siginfo = si;
                 r = source_set_pending(s, true);