From 37d943da645f754f0770ff6c5b547d7d397cf56d Mon Sep 17 00:00:00 2001
From: Olivier Matz <zer0@droids-corp.org>
Date: Thu, 18 Sep 2014 19:46:28 +0200
Subject: [PATCH] imuboard/cmdline: read chars per burst

this enhance reactivity when we are logging on sdcard
---
 imuboard/cmdline.c | 42 +++++++++++++++++++++---------------------
 imuboard/cmdline.h |  2 +-
 2 files changed, 22 insertions(+), 22 deletions(-)

diff --git a/imuboard/cmdline.c b/imuboard/cmdline.c
index 91360a9..4eee061 100644
--- a/imuboard/cmdline.c
+++ b/imuboard/cmdline.c
@@ -192,34 +192,34 @@ static void flush_logs_cb(struct callout_mgr *cm, struct callout *tim,
 }
 
 
-int cmdline_poll(void)
+void cmdline_poll(void)
 {
 	const char *history, *buffer;
 	int8_t ret, same = 0;
 	int16_t c;
 
-	c = cmdline_dev_recv(NULL);
-	if (c < 0)
-		return -1;
-
-	ret = rdline_char_in(&imuboard.rdl, c);
-	if (ret == 1) {
-		buffer = rdline_get_buffer(&imuboard.rdl);
-		history = rdline_get_history_item(&imuboard.rdl, 0);
-		if (history) {
-			same = !memcmp(buffer, history, strlen(history)) &&
-				buffer[strlen(history)] == '\n';
+	while (1) {
+		c = cmdline_dev_recv(NULL);
+		if (c < 0)
+			break;
+
+		ret = rdline_char_in(&imuboard.rdl, c);
+		if (ret == 1) {
+			buffer = rdline_get_buffer(&imuboard.rdl);
+			history = rdline_get_history_item(&imuboard.rdl, 0);
+			if (history) {
+				same = !memcmp(buffer, history, strlen(history)) &&
+					buffer[strlen(history)] == '\n';
+			}
+			else
+				same = 0;
+			if (strlen(buffer) > 1 && !same)
+				rdline_add_history(&imuboard.rdl, buffer);
+
+			if (imuboard.rdl.status != RDLINE_STOPPED)
+				rdline_newline(&imuboard.rdl, imuboard.prompt);
 		}
-		else
-			same = 0;
-		if (strlen(buffer) > 1 && !same)
-			rdline_add_history(&imuboard.rdl, buffer);
-
-		if (imuboard.rdl.status != RDLINE_STOPPED)
-			rdline_newline(&imuboard.rdl, imuboard.prompt);
 	}
-
-	return 0;
 }
 
 void cmdline_init(void)
diff --git a/imuboard/cmdline.h b/imuboard/cmdline.h
index 034244a..0adfa0e 100644
--- a/imuboard/cmdline.h
+++ b/imuboard/cmdline.h
@@ -35,7 +35,7 @@ void emergency(char c);
 void mylog(struct error * e, ...);
 
 /* poll cmdline */
-int cmdline_poll(void);
+void cmdline_poll(void);
 
 int cmdline_dev_send(char c, FILE* f);
 int cmdline_dev_recv(FILE* f);
-- 
2.39.5