From 4ce821445da18cea824dc2b6ef69a68f2e53e341 Mon Sep 17 00:00:00 2001
From: batt <batt@38d2e660-2303-0410-9eaa-f027e97ec537>
Date: Fri, 15 Feb 2008 22:33:13 +0000
Subject: [PATCH] Add kfile_genericReopen.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@1106 38d2e660-2303-0410-9eaa-f027e97ec537
---
 kern/kfile.c | 14 +++++++++++++-
 kern/kfile.h |  5 +++++
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/kern/kfile.c b/kern/kfile.c
index ab8016c3..1e542a33 100644
--- a/kern/kfile.c
+++ b/kern/kfile.c
@@ -170,7 +170,7 @@ int kfile_gets_echo(struct KFile *fd, char *buf, int size, bool echo)
  * Move \a fd file seek position of \a offset bytes from \a whence.
  *
  * This is a generic implementation of seek function, you can redefine
- * it in your local module is needed.
+ * it in your local module if needed.
  */
 kfile_off_t kfile_genericSeek(struct KFile *fd, kfile_off_t offset, KSeekMode whence)
 {
@@ -206,6 +206,18 @@ kfile_off_t kfile_genericSeek(struct KFile *fd, kfile_off_t offset, KSeekMode wh
 	return fd->seek_pos;
 }
 
+/**
+ * Reopen file \a fd.
+ * This is a generic implementation that only flush file
+ * and reset seek_pos to 0.
+ */
+struct KFile * kfile_genericReopen(struct KFile *fd)
+{
+	kfile_flush(fd);
+	kfile_seek(fd, 0, KSM_SEEK_SET);
+	return fd;
+}
+
 #if CONFIG_TEST
 
 /**
diff --git a/kern/kfile.h b/kern/kfile.h
index b80e8625..b46207a0 100644
--- a/kern/kfile.h
+++ b/kern/kfile.h
@@ -210,6 +210,11 @@ typedef struct KFile
  */
 kfile_off_t kfile_genericSeek(struct KFile *fd, kfile_off_t offset, KSeekMode whence);
 
+/**
+ * Generic implementation of kfile_reopen.
+ */
+struct KFile * kfile_genericReopen(struct KFile *fd);
+
 int kfile_putc(int c, struct KFile *fd); ///< Generic putc implementation using kfile_write.
 int kfile_getc(struct KFile *fd);  ///< Generic getc implementation using kfile_read.
 int kfile_printf(struct KFile *fd, const char *format, ...);
-- 
2.25.1