optimize: persist fdlist for duration of main_loop

constant malloc and realloc was wasting lots of time

1 files changed, 3 insertions, 2 deletions

diff --git a/daemon/main.c b/daemon/main.c
index 893f26d..f85d034 100644
--- a/daemon/main.c
+++ b/daemon/main.c
@@ -138,6 +138,7 @@ int main_loop(int listenfd)
         int to, cnt, i, dto;
         struct fdlist pollfds;
 
+        fdlist_create(&pollfds);
         while(!should_exit) {
                 usbmuxd_log(LL_FLOOD, "main_loop iteration");
                 to = usb_get_timeout();
@@ -147,7 +148,7 @@ int main_loop(int listenfd)
                 if(dto < to)
                         to = dto;
 
-                fdlist_create(&pollfds);
+                fdlist_reset(&pollfds);
                 fdlist_add(&pollfds, FD_LISTEN, listenfd, POLLIN);
                 usb_get_fds(&pollfds);
                 client_get_fds(&pollfds);
@@ -201,8 +202,8 @@ int main_loop(int listenfd)
                                 }
                         }
                 }
-                fdlist_free(&pollfds);
         }
+        fdlist_free(&pollfds);
         return 0;
 }