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authorAnuradha Talur <atalur@redhat.com>2016-04-29 19:42:37 +0530
committerPranith Kumar Karampuri <pkarampu@redhat.com>2016-04-29 18:24:13 -0700
commitae9d39890fc9a7bcd696cb441c4f3b2eb9677379 (patch)
tree0368897aa778a4d6f6191b35a09f8874fd50c46d
parent87de08fdb404492ee090a15fe75aedc17a5ac0b8 (diff)
libglusterfs : packing functions for compound fops
Any xlator that wants to compound fops together can use these apis to get the job done. Change-Id: Ic40fceafecafe70173fd469060e834314826a92c BUG: 1303829 Signed-off-by: Anuradha Talur <atalur@redhat.com> Reviewed-on: http://review.gluster.org/13694 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Smoke: Gluster Build System <jenkins@build.gluster.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
-rw-r--r--libglusterfs/src/Makefile.am3
-rw-r--r--libglusterfs/src/compound-fop-utils.c72
2 files changed, 74 insertions, 1 deletions
diff --git a/libglusterfs/src/Makefile.am b/libglusterfs/src/Makefile.am
index fbe30da76f0..63feb380e66 100644
--- a/libglusterfs/src/Makefile.am
+++ b/libglusterfs/src/Makefile.am
@@ -31,7 +31,8 @@ libglusterfs_la_SOURCES = dict.c xlator.c logging.c \
strfd.c parse-utils.c $(CONTRIBDIR)/mount/mntent.c \
$(CONTRIBDIR)/libexecinfo/execinfo.c quota-common-utils.c rot-buffs.c \
$(CONTRIBDIR)/timer-wheel/timer-wheel.c \
- $(CONTRIBDIR)/timer-wheel/find_last_bit.c tw.c default-args.c locking.c
+ $(CONTRIBDIR)/timer-wheel/find_last_bit.c tw.c default-args.c locking.c \
+ compound-fop-utils.c
nodist_libglusterfs_la_SOURCES = y.tab.c graph.lex.c defaults.c
nodist_libglusterfs_la_HEADERS = y.tab.h glusterfs-fops.h
diff --git a/libglusterfs/src/compound-fop-utils.c b/libglusterfs/src/compound-fop-utils.c
new file mode 100644
index 00000000000..16cd5c690e5
--- /dev/null
+++ b/libglusterfs/src/compound-fop-utils.c
@@ -0,0 +1,72 @@
+/*
+ Copyright (c) 2016 Red Hat, Inc. <http://www.redhat.com>
+ 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.
+*/
+
+#include "defaults.h"
+#include "default-args.h"
+#include "mem-types.h"
+#include "dict.h"
+
+compound_args_t*
+compound_fop_alloc (int length, glusterfs_compound_fop_t fop, dict_t *xdata)
+{
+ compound_args_t *args = NULL;
+
+ args = GF_CALLOC (1, sizeof (args), gf_mt_compound_req_t);
+
+ if (!args)
+ return NULL;
+
+ /* fop_enum can be used by xlators to see which fops are
+ * included as part of compound fop. This will help in checking
+ * for compatibility or support without going through the entire
+ * fop list packed.
+ */
+ args->fop_enum = fop;
+ args->fop_length = length;
+
+ args->enum_list = GF_CALLOC (length, sizeof (*args->enum_list),
+ gf_common_mt_int);
+
+ if (!args->enum_list)
+ goto out;
+
+ args->req_list = GF_CALLOC (length, sizeof (*args->req_list),
+ gf_mt_default_args_t);
+
+ if (!args->req_list)
+ goto out;
+
+ if (xdata) {
+ args->xdata = dict_copy_with_ref (xdata, args->xdata);
+ if (!args->xdata)
+ goto out;
+ }
+
+ return args;
+out:
+ if (args->xdata)
+ dict_unref (args->xdata);
+
+ if (args->req_list)
+ GF_FREE (args->req_list);
+
+ if (args->enum_list)
+ GF_FREE (args->enum_list);
+
+ if (args)
+ GF_FREE (args);
+
+ return NULL;
+}
+
+#define COMPOUND_PACK_ARGS(fop, fop_enum, args, counter, params ...) do { \
+ args->enum_list[counter] = fop_enum; \
+ args_##fop##_store (&args->req_list[counter], params); \
+} while (0)