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authorVijay Bellur <vijay@gluster.com>2010-07-12 08:19:44 +0000
committerAnand V. Avati <avati@dev.gluster.com>2010-07-12 06:59:29 -0700
commit6ef7f0e25fb7c76231b4d4ae05cbc45330de300d (patch)
tree6e5b8537dfbee8b7d8e51cdbb62af1d9d0f31a35 /xlators/mgmt/glusterd/src/glusterd-sm.c
parent9bee476eabb5034a27e994008a12ef684755d76c (diff)
Changes in CLI and glusterd
Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
Diffstat (limited to 'xlators/mgmt/glusterd/src/glusterd-sm.c')
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-sm.c190
1 files changed, 176 insertions, 14 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-sm.c b/xlators/mgmt/glusterd/src/glusterd-sm.c
index 53a0f5af8f8..b55fdd5678a 100644
--- a/xlators/mgmt/glusterd/src/glusterd-sm.c
+++ b/xlators/mgmt/glusterd/src/glusterd-sm.c
@@ -42,6 +42,7 @@
#include "compat-errno.h"
#include "statedump.h"
#include "glusterd-sm.h"
+#include "glusterd-utils.h"
static struct list_head gd_friend_sm_queue;
@@ -56,6 +57,16 @@ glusterd_ac_none (glusterd_friend_sm_event_t *event, void *ctx)
}
static int
+glusterd_ac_error (glusterd_friend_sm_event_t *event, void *ctx)
+{
+ int ret = 0;
+
+ gf_log ("", GF_LOG_ERROR, "Received event %d ", event->event);
+
+ return ret;
+}
+
+static int
glusterd_ac_friend_add (glusterd_friend_sm_event_t *event, void *ctx)
{
int ret = 0;
@@ -143,12 +154,95 @@ glusterd_ac_friend_probe (glusterd_friend_sm_event_t *event, void *ctx)
}
*/
-out:
+out:
gf_log ("", GF_LOG_DEBUG, "Returning with %d", ret);
return ret;
}
+static int
+glusterd_ac_send_friend_remove_req (glusterd_friend_sm_event_t *event, void *ctx)
+{
+ int ret = 0;
+ glusterd_peerinfo_t *peerinfo = NULL;
+ rpc_clnt_procedure_t *proc = NULL;
+ call_frame_t *frame = NULL;
+ glusterd_conf_t *conf = NULL;
+ xlator_t *this = NULL;
+
+
+ GF_ASSERT (event);
+ peerinfo = event->peerinfo;
+
+ this = THIS;
+ conf = this->private;
+
+ GF_ASSERT (conf);
+ GF_ASSERT (conf->mgmt);
+
+ proc = &conf->mgmt->proctable[GD_MGMT_FRIEND_REMOVE];
+ if (proc->fn) {
+ frame = create_frame (this, this->ctx->pool);
+ if (!frame) {
+ goto out;
+ }
+ frame->local = ctx;
+ ret = proc->fn (frame, this, event);
+ }
+
+/* ret = glusterd_xfer_friend_req_msg (peerinfo, THIS);
+
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR, "Unable to probe: %s", hostname);
+ }
+*/
+
+out:
+ gf_log ("", GF_LOG_DEBUG, "Returning with %d", ret);
+
+ return ret;
+}
+
+static int
+glusterd_ac_handle_friend_remove_req (glusterd_friend_sm_event_t *event,
+ void *ctx)
+{
+ int ret = 0;
+ glusterd_peerinfo_t *peerinfo = NULL;
+ glusterd_friend_req_ctx_t *ev_ctx = NULL;
+
+ GF_ASSERT (ctx);
+ ev_ctx = ctx;
+ peerinfo = event->peerinfo;
+ GF_ASSERT (peerinfo);
+
+ uuid_clear (peerinfo->uuid);
+
+ ret = glusterd_xfer_friend_remove_resp (ev_ctx->req, ev_ctx->hostname);
+
+ rpc_clnt_destroy (peerinfo->rpc);
+ peerinfo->rpc = NULL;
+
+ gf_log ("", GF_LOG_DEBUG, "Returning with %d", ret);
+
+ return ret;
+}
+
+static int
+glusterd_ac_friend_remove (glusterd_friend_sm_event_t *event, void *ctx)
+{
+ int ret = -1;
+
+ ret = glusterd_friend_cleanup (event->peerinfo);
+
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR, "Cleanup returned: %d", ret);
+ }
+
+
+ return 0;
+}
+
/*static int
glusterd_ac_none (void *ctx)
{
@@ -166,6 +260,9 @@ glusterd_ac_handle_friend_add_req (glusterd_friend_sm_event_t *event, void *ctx)
uuid_t uuid;
glusterd_peerinfo_t *peerinfo = NULL;
glusterd_friend_req_ctx_t *ev_ctx = NULL;
+ glusterd_friend_sm_event_t *new_event = NULL;
+ glusterd_friend_sm_event_type_t event_type = GD_FRIEND_EVENT_NONE;
+ int status = 0;
GF_ASSERT (ctx);
ev_ctx = ctx;
@@ -174,6 +271,22 @@ glusterd_ac_handle_friend_add_req (glusterd_friend_sm_event_t *event, void *ctx)
GF_ASSERT (peerinfo);
uuid_copy (peerinfo->uuid, ev_ctx->uuid);
+ //Build comparison logic here.
+
+ if (!status)
+ event_type = GD_FRIEND_EVENT_LOCAL_ACC;
+ else
+ event_type = GD_FRIEND_EVENT_LOCAL_RJT;
+
+ ret = glusterd_friend_sm_new_event (event_type, &new_event);
+
+ if (ret) {
+ gf_log ("", GF_LOG_ERROR, "Out of Memory");
+ }
+
+ new_event->peerinfo = peerinfo;
+ glusterd_friend_sm_inject_event (new_event);
+
ret = glusterd_xfer_friend_add_resp (ev_ctx->req, ev_ctx->hostname);
gf_log ("", GF_LOG_DEBUG, "Returning with %d", ret);
@@ -182,8 +295,8 @@ glusterd_ac_handle_friend_add_req (glusterd_friend_sm_event_t *event, void *ctx)
}
static int
-glusterd_friend_sm_transition_state (glusterd_peerinfo_t *peerinfo,
- glusterd_sm_t *state,
+glusterd_friend_sm_transition_state (glusterd_peerinfo_t *peerinfo,
+ glusterd_sm_t *state,
glusterd_friend_sm_event_type_t event_type)
{
@@ -203,9 +316,12 @@ glusterd_sm_t glusterd_state_default [] = {
{GD_FRIEND_STATE_DEFAULT, glusterd_ac_none},
{GD_FRIEND_STATE_DEFAULT, glusterd_ac_friend_probe},//EV_PROBE
{GD_FRIEND_STATE_REQ_SENT, glusterd_ac_friend_add}, //EV_INIT_FRIEND_REQ
- {GD_FRIEND_STATE_DEFAULT, glusterd_ac_none}, //EVENT_RCVD_ACC
+ {GD_FRIEND_STATE_DEFAULT, glusterd_ac_none}, //EVENT_RCVD_ACC
+ {GD_FRIEND_STATE_DEFAULT, glusterd_ac_none}, //EVENT_RCVD_LOCAL_ACC
{GD_FRIEND_STATE_DEFAULT, glusterd_ac_none}, //EVENT_RCVD_RJT
+ {GD_FRIEND_STATE_DEFAULT, glusterd_ac_none}, //EVENT_RCVD_LOCAL_RJT
{GD_FRIEND_STATE_REQ_RCVD, glusterd_ac_handle_friend_add_req}, //EVENT_RCV_FRIEND_REQ
+ {GD_FRIEND_STATE_DEFAULT, glusterd_ac_error}, //EV_INIT_REMOVE_FRIEND
{GD_FRIEND_STATE_DEFAULT, glusterd_ac_none}, //EVENT_REMOVE_FRIEND
{GD_FRIEND_STATE_DEFAULT, glusterd_ac_none}, //EVENT_MAX
};
@@ -215,9 +331,12 @@ glusterd_sm_t glusterd_state_req_sent [] = {
{GD_FRIEND_STATE_REQ_SENT, glusterd_ac_none}, //EVENT_NONE,
{GD_FRIEND_STATE_REQ_SENT, glusterd_ac_none}, //EVENT_PROBE,
{GD_FRIEND_STATE_REQ_SENT, glusterd_ac_none}, //EVENT_INIT_FRIEND_REQ,
- {GD_FRIEND_STATE_BEFRIENDED, glusterd_ac_none}, //EVENT_RCVD_ACC
+ {GD_FRIEND_STATE_REQ_ACCEPTED, glusterd_ac_none}, //EVENT_RCVD_ACC
+ {GD_FRIEND_STATE_REQ_SENT, glusterd_ac_none}, //EVENT_RCVD_LOCAL_ACC
{GD_FRIEND_STATE_REJECTED, glusterd_ac_none}, //EVENT_RCVD_RJT
+ {GD_FRIEND_STATE_REQ_SENT, glusterd_ac_none}, //EVENT_RCVD_LOCAL_RJT
{GD_FRIEND_STATE_REQ_SENT_RCVD, glusterd_ac_handle_friend_add_req}, //EVENT_RCV_FRIEND_REQ
+ {GD_FRIEND_STATE_DEFAULT, glusterd_ac_friend_remove}, //EVENT_INIT_REMOVE_FRIEND,
{GD_FRIEND_STATE_DEFAULT, glusterd_ac_none}, //EVENT_REMOVE_FRIEND
{GD_FRIEND_STATE_REQ_SENT, glusterd_ac_none},//EVENT_MAX
};
@@ -227,8 +346,11 @@ glusterd_sm_t glusterd_state_req_rcvd [] = {
{GD_FRIEND_STATE_REQ_RCVD, glusterd_ac_friend_probe}, //EVENT_PROBE,
{GD_FRIEND_STATE_REQ_SENT_RCVD, glusterd_ac_friend_add}, //EVENT_INIT_FRIEND_REQ,
{GD_FRIEND_STATE_REQ_RCVD, glusterd_ac_none}, //EVENT_RCVD_ACC
+ {GD_FRIEND_STATE_REQ_RCVD, glusterd_ac_none}, //EVENT_RCVD_LOCAL_ACC
{GD_FRIEND_STATE_REQ_RCVD, glusterd_ac_none}, //EVENT_RCVD_RJT
+ {GD_FRIEND_STATE_REQ_RCVD, glusterd_ac_none}, //EVENT_RCVD_LOCAL_RJT
{GD_FRIEND_STATE_REQ_RCVD, glusterd_ac_none}, //EVENT_RCV_FRIEND_REQ
+ {GD_FRIEND_STATE_REQ_RCVD, glusterd_ac_error}, //EVENT_INIT_REMOVE_FRIEND,
{GD_FRIEND_STATE_DEFAULT, glusterd_ac_none}, //EVENT_REMOVE_FRIEND
{GD_FRIEND_STATE_REQ_RCVD, glusterd_ac_none},//EVENT_MAX
};
@@ -238,9 +360,12 @@ glusterd_sm_t glusterd_state_befriended [] = {
{GD_FRIEND_STATE_BEFRIENDED, glusterd_ac_none}, //EVENT_PROBE,
{GD_FRIEND_STATE_BEFRIENDED, glusterd_ac_none}, //EVENT_INIT_FRIEND_REQ,
{GD_FRIEND_STATE_BEFRIENDED, glusterd_ac_none}, //EVENT_RCVD_ACC
+ {GD_FRIEND_STATE_BEFRIENDED, glusterd_ac_none}, //EVENT_RCVD_LOCAL_ACC
{GD_FRIEND_STATE_BEFRIENDED, glusterd_ac_none}, //EVENT_RCVD_RJT
+ {GD_FRIEND_STATE_BEFRIENDED, glusterd_ac_none}, //EVENT_RCVD_LOCAL_RJT
{GD_FRIEND_STATE_BEFRIENDED, glusterd_ac_none}, //EVENT_RCV_FRIEND_REQ
- {GD_FRIEND_STATE_DEFAULT, glusterd_ac_none}, //EVENT_REMOVE_FRIEND
+ {GD_FRIEND_STATE_UNFRIEND_SENT, glusterd_ac_send_friend_remove_req}, //EVENT_INIT_REMOVE_FRIEND,
+ {GD_FRIEND_STATE_DEFAULT, glusterd_ac_handle_friend_remove_req}, //EVENT_REMOVE_FRIEND
{GD_FRIEND_STATE_BEFRIENDED, glusterd_ac_none},//EVENT_MAX
};
@@ -249,8 +374,11 @@ glusterd_sm_t glusterd_state_req_sent_rcvd [] = {
{GD_FRIEND_STATE_REQ_SENT_RCVD, glusterd_ac_none}, //EVENT_PROBE,
{GD_FRIEND_STATE_REQ_SENT_RCVD, glusterd_ac_none}, //EVENT_INIT_FRIEND_REQ,
{GD_FRIEND_STATE_BEFRIENDED, glusterd_ac_none}, //EVENT_RCVD_ACC
+ {GD_FRIEND_STATE_REQ_SENT_RCVD, glusterd_ac_none}, //EVENT_RCVD_LOCAL_ACC
{GD_FRIEND_STATE_REJECTED, glusterd_ac_none}, //EVENT_RCVD_RJT
+ {GD_FRIEND_STATE_REQ_SENT_RCVD, glusterd_ac_none}, //EVENT_RCVD_LOCAL_RJT
{GD_FRIEND_STATE_REQ_SENT_RCVD, glusterd_ac_none}, //EVENT_RCV_FRIEND_REQ
+ {GD_FRIEND_STATE_UNFRIEND_SENT, glusterd_ac_send_friend_remove_req}, //EVENT_INIT_REMOVE_FRIEND,
{GD_FRIEND_STATE_DEFAULT, glusterd_ac_none}, //EVENT_REMOVE_FRIEND
{GD_FRIEND_STATE_REQ_SENT_RCVD, glusterd_ac_none},//EVENT_MAX
};
@@ -260,12 +388,43 @@ glusterd_sm_t glusterd_state_rejected [] = {
{GD_FRIEND_STATE_REJECTED, glusterd_ac_friend_probe}, //EVENT_PROBE,
{GD_FRIEND_STATE_REQ_SENT, glusterd_ac_friend_add}, //EVENT_INIT_FRIEND_REQ,
{GD_FRIEND_STATE_REJECTED, glusterd_ac_none}, //EVENT_RCVD_ACC
+ {GD_FRIEND_STATE_REJECTED, glusterd_ac_none}, //EVENT_RCVD_LOCAL_ACC
{GD_FRIEND_STATE_REJECTED, glusterd_ac_none}, //EVENT_RCVD_RJT
+ {GD_FRIEND_STATE_REJECTED, glusterd_ac_none}, //EVENT_RCVD_LOCAL_RJT
{GD_FRIEND_STATE_REQ_RCVD, glusterd_ac_handle_friend_add_req}, //EVENT_RCV_FRIEND_REQ
+ {GD_FRIEND_STATE_DEFAULT, glusterd_ac_friend_remove}, //EVENT_INIT_REMOVE_FRIEND
{GD_FRIEND_STATE_DEFAULT, glusterd_ac_none}, //EVENT_REMOVE_FRIEND
{GD_FRIEND_STATE_REQ_RCVD, glusterd_ac_none},//EVENT_MAX
};
+glusterd_sm_t glusterd_state_req_accepted [] = {
+ {GD_FRIEND_STATE_REQ_ACCEPTED, glusterd_ac_none}, //EVENT_NONE,
+ {GD_FRIEND_STATE_REQ_ACCEPTED, glusterd_ac_none}, //EVENT_PROBE,
+ {GD_FRIEND_STATE_REQ_ACCEPTED, glusterd_ac_none}, //EVENT_INIT_FRIEND_REQ,
+ {GD_FRIEND_STATE_BEFRIENDED, glusterd_ac_none}, //EVENT_RCVD_ACC
+ {GD_FRIEND_STATE_BEFRIENDED, glusterd_ac_none}, //EVENT_RCVD_LOCAL_ACC
+ {GD_FRIEND_STATE_REJECTED, glusterd_ac_none}, //EVENT_RCVD_RJT
+ {GD_FRIEND_STATE_REJECTED, glusterd_ac_none}, //EVENT_RCVD_LOCAL_RJT
+ {GD_FRIEND_STATE_REQ_ACCEPTED, glusterd_ac_handle_friend_add_req}, //EVENT_RCV_FRIEND_REQ
+ {GD_FRIEND_STATE_DEFAULT, glusterd_ac_friend_remove}, //EVENT_INIT_REMOVE_FRIEND
+ {GD_FRIEND_STATE_DEFAULT, glusterd_ac_none}, //EVENT_REMOVE_FRIEND
+ {GD_FRIEND_STATE_REQ_SENT, glusterd_ac_none},//EVENT_MAX
+};
+
+glusterd_sm_t glusterd_state_unfriend_sent [] = {
+ {GD_FRIEND_STATE_REQ_ACCEPTED, glusterd_ac_none}, //EVENT_NONE,
+ {GD_FRIEND_STATE_UNFRIEND_SENT, glusterd_ac_error}, //EVENT_PROBE,
+ {GD_FRIEND_STATE_UNFRIEND_SENT, glusterd_ac_none}, //EVENT_INIT_FRIEND_REQ,
+ {GD_FRIEND_STATE_UNFRIEND_SENT, glusterd_ac_none}, //EVENT_RCVD_ACC
+ {GD_FRIEND_STATE_UNFRIEND_SENT, glusterd_ac_none}, //EVENT_RCVD_LOCAL_ACC
+ {GD_FRIEND_STATE_UNFRIEND_SENT, glusterd_ac_error}, //EVENT_RCVD_RJT
+ {GD_FRIEND_STATE_UNFRIEND_SENT, glusterd_ac_error}, //EVENT_RCVD_LOCAL_RJT
+ {GD_FRIEND_STATE_UNFRIEND_SENT, glusterd_ac_error}, //EVENT_RCV_FRIEND_REQ
+ {GD_FRIEND_STATE_UNFRIEND_SENT, glusterd_ac_none}, //EVENT_INIT_REMOVE_FRIEND
+ {GD_FRIEND_STATE_DEFAULT, glusterd_ac_friend_remove}, //EVENT_REMOVE_FRIEND
+ {GD_FRIEND_STATE_UNFRIEND_SENT, glusterd_ac_none},//EVENT_MAX
+};
+
glusterd_sm_t *glusterd_friend_state_table [] = {
glusterd_state_default,
glusterd_state_req_sent,
@@ -273,6 +432,8 @@ glusterd_sm_t *glusterd_friend_state_table [] = {
glusterd_state_befriended,
glusterd_state_req_sent_rcvd,
glusterd_state_rejected,
+ glusterd_state_req_accepted,
+ glusterd_state_unfriend_sent,
};
int
@@ -285,7 +446,7 @@ glusterd_friend_sm_new_event (glusterd_friend_sm_event_type_t event_type,
GF_ASSERT (GD_FRIEND_EVENT_NONE <= event_type &&
GD_FRIEND_EVENT_MAX > event_type);
- event = GF_CALLOC (1, sizeof (*event), gf_gld_mt_friend_sm_event_t);
+ event = GF_CALLOC (1, sizeof (*event), gf_gld_mt_friend_sm_event_t);
if (!event)
return -1;
@@ -321,21 +482,22 @@ glusterd_friend_sm ()
glusterd_friend_sm_event_type_t event_type = 0;
list_for_each_entry_safe (event, tmp, &gd_friend_sm_queue, list) {
-
+
list_del_init (&event->list);
peerinfo = event->peerinfo;
event_type = event->event;
- if (!peerinfo &&
+ if (!peerinfo &&
(GD_FRIEND_EVENT_PROBE == event_type ||
GD_FRIEND_EVENT_RCVD_FRIEND_REQ == event_type)) {
- ret = glusterd_friend_add (NULL, GD_PEER_STATE_NONE, NULL, NULL,
- &peerinfo);
+ ret = glusterd_friend_add (NULL,
+ GD_FRIEND_STATE_DEFAULT,
+ NULL, NULL, &peerinfo);
if (ret) {
gf_log ("glusterd", GF_LOG_ERROR, "Unable to add peer, "
"ret = %d", ret);
- continue;
+ continue;
}
GF_ASSERT (peerinfo);
event->peerinfo = peerinfo;
@@ -348,7 +510,7 @@ glusterd_friend_sm ()
handler = state[event_type].handler;
GF_ASSERT (handler);
-
+
ret = handler (event, event->ctx);
if (ret) {
@@ -368,7 +530,7 @@ glusterd_friend_sm ()
GF_FREE (event);
}
-
+
ret = 0;