Add check for orphaned file descriptor.

A user reported that the CPU was 80 -> 100%. An orphaned fd is certainly one possibility and this will highlight it.
banksy-git · Feb 22, 2021 · fa520f9 · fa520f9
1 parent 152494a
commit fa520f9
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/gateway/main.c b/gateway/main.c
@@ -216,6 +216,10 @@ int main(int argc, char** argv)
                             _error_exit("write serial");
                         }
                     }
+                } else {
+                     fprintf(stderr, "Bug: Closing orphaned fd %d.\n", i);
+                     close(i);
+                     FD_CLR(i, &_master_read_set);
                 }
 
             }