From 31f58221811cf901f02059a4751b20483d26d79d Mon Sep 17 00:00:00 2001 From: Krishnan Parthasarathi Date: Fri, 1 Mar 2013 16:18:26 +0530 Subject: template: A minimal example xlator to build on This xlator is intended to save new GlusterFS developers from fighting it with autotools. How to add template xl onto the xlator graph? [..] volname-template type testing/features/template subvolumes volname-dht end-volume [..] Change-Id: If513284bb590be7c3b093054108dba2883064190 BUG: 916985 Signed-off-by: Krishnan Parthasarathi Reviewed-on: http://review.gluster.org/4604 Tested-by: Gluster Build System Reviewed-by: Vijay Bellur --- configure.ac | 3 ++ xlators/Makefile.am | 3 +- xlators/playground/Makefile.am | 2 ++ xlators/playground/template/Makefile.am | 2 ++ xlators/playground/template/src/Makefile.am | 16 ++++++++++ xlators/playground/template/src/template.c | 49 +++++++++++++++++++++++++++++ xlators/playground/template/src/template.h | 24 ++++++++++++++ 7 files changed, 98 insertions(+), 1 deletion(-) create mode 100644 xlators/playground/Makefile.am create mode 100644 xlators/playground/template/Makefile.am create mode 100644 xlators/playground/template/src/Makefile.am create mode 100644 xlators/playground/template/src/template.c create mode 100644 xlators/playground/template/src/template.h diff --git a/configure.ac b/configure.ac index dbae42aa18a..2c54c3be3b2 100644 --- a/configure.ac +++ b/configure.ac @@ -116,6 +116,9 @@ AC_CONFIG_FILES([Makefile xlators/features/index/src/Makefile xlators/features/protect/Makefile xlators/features/protect/src/Makefile + xlators/playground/Makefile + xlators/playground/template/Makefile + xlators/playground/template/src/Makefile xlators/encryption/Makefile xlators/encryption/rot-13/Makefile xlators/encryption/rot-13/src/Makefile diff --git a/xlators/Makefile.am b/xlators/Makefile.am index b1643d26ca0..f60fa85ce06 100644 --- a/xlators/Makefile.am +++ b/xlators/Makefile.am @@ -1,3 +1,4 @@ -SUBDIRS = cluster storage protocol performance debug features encryption mount nfs mgmt system +SUBDIRS = cluster storage protocol performance debug features encryption mount nfs mgmt system \ + playground CLEANFILES = diff --git a/xlators/playground/Makefile.am b/xlators/playground/Makefile.am new file mode 100644 index 00000000000..e7de6b31aff --- /dev/null +++ b/xlators/playground/Makefile.am @@ -0,0 +1,2 @@ +SUBDIRS = template +CLEANFILES = diff --git a/xlators/playground/template/Makefile.am b/xlators/playground/template/Makefile.am new file mode 100644 index 00000000000..f2689244371 --- /dev/null +++ b/xlators/playground/template/Makefile.am @@ -0,0 +1,2 @@ +SUBDIRS = src + diff --git a/xlators/playground/template/src/Makefile.am b/xlators/playground/template/src/Makefile.am new file mode 100644 index 00000000000..21f1c5f6b75 --- /dev/null +++ b/xlators/playground/template/src/Makefile.am @@ -0,0 +1,16 @@ +xlator_LTLIBRARIES = template.la +xlatordir = $(libdir)/glusterfs/$(PACKAGE_VERSION)/xlator/testing/features + +template_la_LDFLAGS = -module -avoid-version + +template_la_SOURCES = template.c +template_la_LIBADD = $(top_builddir)/libglusterfs/src/libglusterfs.la + +noinst_HEADERS = template.h + +AM_CPPFLAGS = $(GF_CPPFLAGS) -I$(top_srcdir)/libglusterfs/src + +AM_CFLAGS = -Wall $(GF_CFLAGS) + +CLEANFILES = + diff --git a/xlators/playground/template/src/template.c b/xlators/playground/template/src/template.c new file mode 100644 index 00000000000..37a7794a07e --- /dev/null +++ b/xlators/playground/template/src/template.c @@ -0,0 +1,49 @@ +/* + Copyright (c) 2006-2012 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 _CONFIG_H +#define _CONFIG_H +#include "config.h" +#endif + +#include "template.h" + +int32_t +init (xlator_t *this) +{ + + if (!this->children || this->children->next) { + gf_log (this->name, GF_LOG_ERROR, + "not configured with exactly one child. exiting"); + return -1; + } + + if (!this->parents) { + gf_log (this->name, GF_LOG_WARNING, + "dangling volume. check volfile "); + } + + return 0; +} + +void +fini (xlator_t *this) +{ + return; +} + +struct xlator_fops fops = { +}; + +struct xlator_cbks cbks = { +}; + +struct volume_options options[] = { + { .key = {NULL} }, +}; diff --git a/xlators/playground/template/src/template.h b/xlators/playground/template/src/template.h new file mode 100644 index 00000000000..d6aced50107 --- /dev/null +++ b/xlators/playground/template/src/template.h @@ -0,0 +1,24 @@ +/* + Copyright (c) 2013 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 __TEMPLATE_H__ +#define __TEMPLATE_H__ + +#ifndef _CONFIG_H +#define _CONFIG_H +#include "config.h" +#endif + +#include "glusterfs.h" +#include "logging.h" +#include "dict.h" +#include "xlator.h" +#include "defaults.h" + +#endif /* __TEMPLATE_H__ */ -- cgit