1 files changed, 9 insertions, 2 deletions
diff --git a/03_exercise/srv/shell.c b/03_exercise/srv/shell.c
index c7155c6..74c492b 100644
--- a/03_exercise/srv/shell.c
+++ b/03_exercise/srv/shell.c
@@ -100,6 +100,13 @@ void send_file(int client_fd, char *path) {
         return;
     }
 
+    int flag = 1;
+    // force flush
+    flag = 1;
+    setsockopt(client_fd, IPPROTO_TCP, TCP_NODELAY, (char *) &flag, sizeof(int));
+    flag = 0;
+    setsockopt(client_fd, IPPROTO_TCP, TCP_NODELAY, (char *) &flag, sizeof(int));
+
     int length = snprintf(NULL, 0, "%ld", sz);
     sprintf(buffer, "<<!%ld!", sz);
     sprintf(&(buffer[3 + length + 1]), "%s!\n", path);
@@ -109,10 +116,10 @@ void send_file(int client_fd, char *path) {
         return;
     }
 
-    int flag = 1;
-    // force flush
+    flag = 1;
     setsockopt(client_fd, IPPROTO_TCP, TCP_NODELAY, (char *) &flag, sizeof(int));
     flag = 0;
+    setsockopt(client_fd, IPPROTO_TCP, TCP_NODELAY, (char *) &flag, sizeof(int));
 
     usleep(150);