X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fio%2Fkfile.h;h=9a750feb29a2dfe6135f8c1a4f13647de0b4db9c;hb=024bf80e5f29e4de00d0813d23a4d3b67245ead7;hp=c7a5bfc924235f6919c96d019fee68405b95f7dd;hpb=732194360d28057468a14459120487784dfbc2e2;p=bertos.git

diff --git a/bertos/io/kfile.h b/bertos/io/kfile.h
index c7a5bfc9..9a750feb 100644
--- a/bertos/io/kfile.h
+++ b/bertos/io/kfile.h
@@ -31,6 +31,10 @@
  *
  * -->
  *
+ * \defgroup io_kfile KFile interface
+ * \ingroup core
+ * \{
+ *
  * \brief Virtual KFile I/O interface.
  *
  * KFile is a simple, generic interface for file I/O.  It uses an
@@ -219,6 +223,12 @@ int kfile_genericClose(struct KFile *fd);
 /**
  * Read \a size bytes from file \a fd into \a buf.
  *
+ * This function reads at most the number of requested bytes into the
+ * provided buffer.
+ * The value returned may be less than the requested bytes in case EOF is
+ * reached OR an error occurred. You need to check the error conditions
+ * using kfile_error() to understand which case happened.
+ *
  * \note This function will block if there are less than \a size bytes
  *       to read.
  *
@@ -235,6 +245,16 @@ INLINE size_t kfile_read(struct KFile *fd, void *buf, size_t size)
 int kfile_gets(struct KFile *fd, char *buf, int size);
 int kfile_gets_echo(struct KFile *fd, char *buf, int size, bool echo);
 
+/**
+ * Copy \a size bytes from file \a src to \a dst.
+ *
+ * \param src Source KFile.
+ * \param dst Destionation KFile.
+ * \param size number of bytes to copy.
+ * \return the number of bytes copied.
+ */
+kfile_off_t kfile_copy(KFile *src, KFile *dst, kfile_off_t size);
+
 /**
  * Write \a size bytes from buffer \a buf into KFile \a fd.
  *
@@ -325,6 +345,8 @@ void kfile_resync(KFile *fd, mtime_t delay);
 void kfile_init(struct KFile *fd);
 /* @} */
 
+/** \} */ //Defgroup io_kfile
+
 /*
  * Kfile test function.
  */