From af4964d72f29674bbe7ca7e924ce8e9e7522c41b Mon Sep 17 00:00:00 2001
From: antirez <antirez@gmail.com>
Date: Thu, 10 Jan 2013 19:01:25 +0100
Subject: [PATCH] With --raw fflush() at every output to avoid delays.

---
 dump1090.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/dump1090.c b/dump1090.c
index 1d60596..e50edd7 100644
--- a/dump1090.c
+++ b/dump1090.c
@@ -919,7 +919,10 @@ void displayModesMessage(struct modesMessage *mm) {
     for (j = 0; j < mm->msgbits/8; j++) printf("%02x", mm->msg[j]);
     printf(";\n");
 
-    if (Modes.raw) return; /* Enough for --raw mode */
+    if (Modes.raw) {
+        fflush(stdout); /* Provide data to the reader ASAP. */
+        return; /* Enough for --raw mode */
+    }
 
     printf("CRC: %06x (%s)\n", (int)mm->crc, mm->crcok ? "ok" : "wrong");
     if (mm->errorbit != -1)