From: asterix <asterix@38d2e660-2303-0410-9eaa-f027e97ec537>
Date: Thu, 4 Dec 2008 17:55:11 +0000 (+0000)
Subject: Add the generic kfile resync.
X-Git-Tag: 2.1.0~708
X-Git-Url: https://codewiz.org/gitweb?a=commitdiff_plain;h=c45e4cce0b0aa72809f868441979e122b6ad97d5;p=bertos.git

Add the generic kfile resync.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@1974 38d2e660-2303-0410-9eaa-f027e97ec537
---

diff --git a/bertos/kern/kfile.c b/bertos/kern/kfile.c
index 5a44019d..81cd9d0a 100644
--- a/bertos/kern/kfile.c
+++ b/bertos/kern/kfile.c
@@ -44,6 +44,7 @@
 #include <cfg/debug.h>
 #include <cfg/log.h>
 
+#include <drv/timer.h>
 #include <mware/formatwr.h>
 
 #include <string.h>
@@ -228,3 +229,30 @@ int kfile_genericClose(UNUSED_ARG(struct KFile *, fd))
 };
 
 
+/**
+ * Discard input to resynchronize with remote end.
+ *
+ * Discard incoming data until the kfile_getc stops receiving
+ * characters for at least \a delay milliseconds.
+ *
+ * \note If the timeout occur, we reset the error before to
+ * quit.
+ */
+void kfile_resync(KFile *fd, mtime_t delay)
+{
+	ticks_t start_time = timer_clock();
+	for(;;)
+	{
+		if(kfile_getc(fd) != EOF)
+			start_time = timer_clock();
+
+		if ((timer_clock() - start_time) > ms_to_ticks(delay))
+		{
+			kfile_clearerr(fd);
+			break;
+		}
+
+	}
+}
+
+
diff --git a/bertos/kern/kfile.h b/bertos/kern/kfile.h
index b959b959..a42defdd 100644
--- a/bertos/kern/kfile.h
+++ b/bertos/kern/kfile.h
@@ -216,6 +216,7 @@ int kfile_printf(struct KFile *fd, const char *format, ...);
 int kfile_print(struct KFile *fd, const char *s);
 int kfile_gets(struct KFile *fd, char *buf, int size);
 int kfile_gets_echo(struct KFile *fd, char *buf, int size, bool echo);
+void kfile_resync(KFile *fd, mtime_t delay);
 
 /**
  * Interface functions for KFile access.