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/*
Copyright (c) 2006-2010 Gluster, Inc. <http://www.gluster.com>
This file is part of GlusterFS.
GlusterFS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3 of the License,
or (at your option) any later version.
GlusterFS is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see
<http://www.gnu.org/licenses/>.
*/
#ifndef _GLUSTERD_SM_H_
#define _GLUSTERD_SM_H_
#ifndef _CONFIG_H
#define _CONFIG_H
#include "config.h"
#endif
#include <pthread.h>
#include "uuid.h"
#include "rpc-clnt.h"
#include "glusterfs.h"
#include "xlator.h"
#include "logging.h"
#include "call-stub.h"
#include "fd.h"
#include "byte-order.h"
//#include "glusterd.h"
#include "rpcsvc.h"
struct glusterd_store_handle_ {
char *path;
int fd;
FILE *read;
};
typedef struct glusterd_store_handle_ glusterd_store_handle_t;
typedef enum glusterd_friend_sm_state_ {
GD_FRIEND_STATE_DEFAULT = 0,
GD_FRIEND_STATE_REQ_SENT,
GD_FRIEND_STATE_REQ_RCVD,
GD_FRIEND_STATE_BEFRIENDED,
GD_FRIEND_STATE_REQ_ACCEPTED,
GD_FRIEND_STATE_REQ_SENT_RCVD,
GD_FRIEND_STATE_REJECTED,
GD_FRIEND_STATE_UNFRIEND_SENT,
GD_FRIEND_STATE_PROBE_RCVD,
GD_FRIEND_STATE_CONNECTED_RCVD,
GD_FRIEND_STATE_CONNECTED_ACCEPTED,
GD_FRIEND_STATE_MAX
} glusterd_friend_sm_state_t;
typedef struct glusterd_peer_state_info_ {
glusterd_friend_sm_state_t state;
struct timeval transition_time;
}glusterd_peer_state_info_t;
typedef struct glusterd_peer_hostname_ {
char *hostname;
struct list_head hostname_list;
}glusterd_peer_hostname_t;
typedef struct glusterd_sm_transition_ {
int old_state;
int event;
int new_state;
time_t time;
} glusterd_sm_transition_t;
typedef struct glusterd_sm_tr_log_ {
glusterd_sm_transition_t *transitions;
size_t current;
size_t size;
size_t count;
char* (*state_name_get) (int);
char* (*event_name_get) (int);
} glusterd_sm_tr_log_t;
struct glusterd_peerinfo_ {
uuid_t uuid;
char uuid_str[50];
glusterd_peer_state_info_t state;
char *hostname;
int port;
struct list_head uuid_list;
struct list_head op_peers_list;
struct rpc_clnt *rpc;
rpc_clnt_prog_t *mgmt;
int connected;
glusterd_store_handle_t *shandle;
glusterd_sm_tr_log_t sm_log;
};
typedef struct glusterd_peerinfo_ glusterd_peerinfo_t;
typedef enum glusterd_ev_gen_mode_ {
GD_MODE_OFF,
GD_MODE_ON,
GD_MODE_SWITCH_ON
} glusterd_ev_gen_mode_t;
typedef struct glusterd_peer_ctx_args_ {
rpcsvc_request_t *req;
glusterd_ev_gen_mode_t mode;
} glusterd_peerctx_args_t;
typedef struct glusterd_peer_ctx_ {
glusterd_peerctx_args_t args;
glusterd_peerinfo_t *peerinfo;
} glusterd_peerctx_t;
typedef enum glusterd_friend_sm_event_type_ {
GD_FRIEND_EVENT_NONE = 0,
GD_FRIEND_EVENT_PROBE,
GD_FRIEND_EVENT_INIT_FRIEND_REQ,
GD_FRIEND_EVENT_RCVD_ACC,
GD_FRIEND_EVENT_LOCAL_ACC,
GD_FRIEND_EVENT_RCVD_RJT,
GD_FRIEND_EVENT_LOCAL_RJT,
GD_FRIEND_EVENT_RCVD_FRIEND_REQ,
GD_FRIEND_EVENT_INIT_REMOVE_FRIEND,
GD_FRIEND_EVENT_RCVD_REMOVE_FRIEND,
GD_FRIEND_EVENT_REMOVE_FRIEND,
GD_FRIEND_EVENT_CONNECTED,
GD_FRIEND_EVENT_MAX
} glusterd_friend_sm_event_type_t;
typedef enum glusterd_friend_update_op_ {
GD_FRIEND_UPDATE_NONE = 0,
GD_FRIEND_UPDATE_ADD,
GD_FRIEND_UPDATE_DEL,
} glusterd_friend_update_op_t;
struct glusterd_friend_sm_event_ {
struct list_head list;
glusterd_peerinfo_t *peerinfo;
void *ctx;
glusterd_friend_sm_event_type_t event;
};
typedef struct glusterd_friend_sm_event_ glusterd_friend_sm_event_t;
typedef int (*glusterd_friend_sm_ac_fn) (glusterd_friend_sm_event_t *, void *);
typedef struct glusterd_sm_ {
glusterd_friend_sm_state_t next_state;
glusterd_friend_sm_ac_fn handler;
} glusterd_sm_t;
typedef struct glusterd_friend_req_ctx_ {
uuid_t uuid;
char *hostname;
rpcsvc_request_t *req;
int port;
dict_t *vols;
} glusterd_friend_req_ctx_t;
typedef struct glusterd_friend_update_ctx_ {
uuid_t uuid;
char *hostname;
int op;
} glusterd_friend_update_ctx_t;
typedef struct glusterd_probe_ctx_ {
char *hostname;
rpcsvc_request_t *req;
int port;
} glusterd_probe_ctx_t;
int
glusterd_friend_sm_new_event (glusterd_friend_sm_event_type_t event_type,
glusterd_friend_sm_event_t **new_event);
int
glusterd_friend_sm_inject_event (glusterd_friend_sm_event_t *event);
int
glusterd_friend_sm_init ();
int
glusterd_friend_sm ();
void
glusterd_destroy_probe_ctx (glusterd_probe_ctx_t *ctx);
void
glusterd_destroy_friend_req_ctx (glusterd_friend_req_ctx_t *ctx);
char*
glusterd_friend_sm_state_name_get (int state);
char*
glusterd_friend_sm_event_name_get (int event);
int
glusterd_broadcast_friend_delete (char *hostname, uuid_t uuid);
void
glusterd_destroy_friend_update_ctx (glusterd_friend_update_ctx_t *ctx);
#endif
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