From 2e4be016902c51bf54a59df126c1f60ddbf22b49 Mon Sep 17 00:00:00 2001
From: Michael Brown
Date: Tue, 8 May 2012 16:54:38 +0100
Subject: [xferbuf] Add generic data-transfer buffer

Signed-off-by: Michael Brown <mcb30@ipxe.org>
---
 src/include/ipxe/errfile.h |  1 +
 src/include/ipxe/xferbuf.h | 31 +++++++++++++++++++++++++++++++
 2 files changed, 32 insertions(+)
 create mode 100644 src/include/ipxe/xferbuf.h

(limited to 'src/include')

diff --git a/src/include/ipxe/errfile.h b/src/include/ipxe/errfile.h
index fbdeb0a39..2109cf2f9 100644
--- a/src/include/ipxe/errfile.h
+++ b/src/include/ipxe/errfile.h
@@ -61,6 +61,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
 #define ERRFILE_edd		       ( ERRFILE_CORE | 0x00150000 )
 #define ERRFILE_parseopt	       ( ERRFILE_CORE | 0x00160000 )
 #define ERRFILE_test		       ( ERRFILE_CORE | 0x00170000 )
+#define ERRFILE_xferbuf		       ( ERRFILE_CORE | 0x00180000 )
 
 #define ERRFILE_eisa		     ( ERRFILE_DRIVER | 0x00000000 )
 #define ERRFILE_isa		     ( ERRFILE_DRIVER | 0x00010000 )
diff --git a/src/include/ipxe/xferbuf.h b/src/include/ipxe/xferbuf.h
new file mode 100644
index 000000000..2ca871e59
--- /dev/null
+++ b/src/include/ipxe/xferbuf.h
@@ -0,0 +1,31 @@
+#ifndef _IPXE_XFERBUF_H
+#define _IPXE_XFERBUF_H
+
+/** @file
+ *
+ * Data transfer buffer
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <stdint.h>
+#include <ipxe/iobuf.h>
+#include <ipxe/xfer.h>
+
+/** A data transfer buffer */
+struct xfer_buffer {
+	/** Data */
+	void *data;
+	/** Size of data */
+	size_t len;
+	/** Current offset within data */
+	size_t pos;
+};
+
+extern void xferbuf_done ( struct xfer_buffer *xferbuf );
+extern int xferbuf_deliver ( struct xfer_buffer *xferbuf,
+			     struct io_buffer *iobuf,
+			     struct xfer_metadata *meta );
+
+#endif /* _IPXE_XFERBUF_H */
-- 
cgit v1.2.3-55-g7522