From 2da51737c49f7917a974bdf9e6e566307583ad16 Mon Sep 17 00:00:00 2001 From: Anand Avati Date: Thu, 27 Mar 2014 21:21:12 -0700 Subject: strfd: memory backed file descriptor A file descriptor like interface, backed by a string, on which fprintf() like IO can be performed. Internally the backing string is grown on demand. Useful in generating virtual file content on the fly (used in meta) Change-Id: I60d8751c4c750f3f06aa454a4ccd9909b3ac8ac7 BUG: 1089216 Signed-off-by: Anand Avati Reviewed-on: http://review.gluster.org/7508 Reviewed-by: Pranith Kumar Karampuri Tested-by: Gluster Build System --- libglusterfs/src/strfd.h | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 libglusterfs/src/strfd.h (limited to 'libglusterfs/src/strfd.h') diff --git a/libglusterfs/src/strfd.h b/libglusterfs/src/strfd.h new file mode 100644 index 000000000..e386c8432 --- /dev/null +++ b/libglusterfs/src/strfd.h @@ -0,0 +1,28 @@ +/* + Copyright (c) 2014 Red Hat, Inc. + This file is part of GlusterFS. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ + +#ifndef _STRFD_H +#define _STRFD_H + +typedef struct { + void *data; + size_t alloc_size; + size_t size; + off_t pos; +} strfd_t; + +strfd_t *strfd_open(); + +int strprintf(strfd_t *strfd, const char *fmt, ...) + __attribute__ ((__format__ (__printf__, 2, 3))); + +int strfd_close(strfd_t *strfd); + +#endif -- cgit