glusterd: Added init scripts like interface for gluster commands

Directories to hold the scripts mentioned above would be created for each
gluster command under glusterd's 'working dir' as follows:
(eg.)
<glusterd-working-dir>/hooks/version/create/pre

<glusterd-working-dir>/hooks/version/create/post

where, version corresponds to the version of hook scripts.

The scripts beginning with 'S' under the above directories would be run before
(pre) and after (post) the volume created. The scripts would receive a command
line argument as below:
--volname=<volname>

This can be optionally used  by the script.

Change-Id: Ia81b4ff9dd4477d99dd59b39c805aa645521edb0
BUG: 806996
Signed-off-by: Krishnan Parthasarathi <kp@gluster.com>
Reviewed-on: http://review.gluster.com/3010
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Csaba Henk <csaba@redhat.com>
Reviewed-by: Vijay Bellur <vijay@gluster.com>

1 files changed, 23 insertions, 0 deletions

diff --git a/xlators/mgmt/glusterd/src/glusterd-store.h b/xlators/mgmt/glusterd/src/glusterd-store.h
index b381e5a0c..788949d55 100644
--- a/xlators/mgmt/glusterd/src/glusterd-store.h
+++ b/xlators/mgmt/glusterd/src/glusterd-store.h
@@ -30,6 +30,7 @@
 
 #include "glusterfs.h"
 #include "xlator.h"
+#include "run.h"
 #include "logging.h"
 #include "call-stub.h"
 #include "fd.h"
@@ -73,6 +74,10 @@ typedef enum glusterd_store_ver_ac_{
 #define GLUSTERD_STORE_KEY_PEER_HOSTNAME  "hostname"
 #define GLUSTERD_STORE_KEY_PEER_STATE     "state"
 
+#define GLUSTERD_GET_HOOKS_DIR(path, version, priv) \
+        snprintf (path, PATH_MAX, "%s/hooks/%d", priv->workdir,\
+                  version);
+
 #define glusterd_for_each_entry(entry, dir) \
         do {\
                 entry = NULL;\
@@ -85,6 +90,7 @@ typedef enum glusterd_store_ver_ac_{
                 }\
         } while (0); \
 
+
 typedef enum {
         GD_STORE_SUCCESS,
         GD_STORE_KEY_NULL,
@@ -95,6 +101,14 @@ typedef enum {
         GD_STORE_STAT_FAILED
 } glusterd_store_op_errno_t;
 
+#define GLUSTERD_HOOK_VER       1
+typedef enum glusterd_commit_hook_type {
+        GD_COMMIT_HOOK_NONE = 0,
+        GD_COMMIT_HOOK_PRE,
+        GD_COMMIT_HOOK_POST,
+        GD_COMMIT_HOOK_MAX
+} glusterd_commit_hook_type_t;
+
 int32_t
 glusterd_store_volinfo (glusterd_volinfo_t *volinfo, glusterd_volinfo_ver_ac_t ac);
 
@@ -138,4 +152,13 @@ glusterd_perform_volinfo_version_action (glusterd_volinfo_t *volinfo,
                                          glusterd_volinfo_ver_ac_t ac);
 gf_boolean_t
 glusterd_store_is_valid_brickpath (char *volname, char *brick);
+
+int
+glusterd_store_create_hooks_directory (char *basedir);
+
+char *
+glusterd_store_get_hooks_cmd_subdir (glusterd_op_t op);
+
+int
+glusterd_store_run_hooks (char *hooks_path, dict_t *op_ctx);
 #endif