swaybar: invalidate file descriptors upon closing

1 files changed, 15 insertions, 4 deletions

diff --git a/swaybar/status_line.c b/swaybar/status_line.c
index 688e5947..09ed2375 100644
--- a/swaybar/status_line.c
+++ b/swaybar/status_line.c
@@ -7,12 +7,24 @@
 #include <unistd.h>
 #include <wlr/util/log.h>
 #include "swaybar/config.h"
+#include "swaybar/event_loop.h"
 #include "swaybar/status_line.h"
 #include "readline.h"
 
+static void status_line_close_fds(struct status_line *status) {
+        if (status->read_fd != -1) {
+                remove_event(status->read_fd);
+                close(status->read_fd);
+                status->read_fd = -1;
+        }
+        if (status->write_fd != -1) {
+                close(status->write_fd);
+                status->write_fd = -1;
+        }
+}
+
 void status_error(struct status_line *status, const char *text) {
-        close(status->read_fd);
-        close(status->write_fd);
+        status_line_close_fds(status);
         status->protocol = PROTOCOL_ERROR;
         status->text = text;
 }
@@ -123,8 +135,7 @@ struct status_line *status_line_init(char *cmd) {
 }
 
 void status_line_free(struct status_line *status) {
-        close(status->read_fd);
-        close(status->write_fd);
+        status_line_close_fds(status);
         kill(status->pid, SIGTERM);
         switch (status->protocol) {
         case PROTOCOL_I3BAR: {