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/*
Copyright (c) 2006-2009 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 Affero 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
Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see
<http://www.gnu.org/licenses/>.
*/
#ifndef _GLUSTERD_OP_SM_H_
#define _GLUSTERD_OP_SM_H_
#ifndef _CONFIG_H
#define _CONFIG_H
#include "config.h"
#endif
#include <pthread.h>
#include "uuid.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 "protocol-common.h"
#define GD_VOLUME_NAME_MAX 256
typedef enum glusterd_op_sm_state_ {
GD_OP_STATE_DEFAULT = 0,
GD_OP_STATE_LOCK_SENT,
GD_OP_STATE_LOCKED,
GD_OP_STATE_STAGE_OP_SENT,
GD_OP_STATE_STAGED,
GD_OP_STATE_COMMIT_OP_SENT,
GD_OP_STATE_COMMITED,
GD_OP_STATE_UNLOCK_SENT,
GD_OP_STATE_MAX,
} glusterd_op_sm_state_t;
typedef enum glusterd_op_sm_event_type_ {
GD_OP_EVENT_NONE = 0,
GD_OP_EVENT_START_LOCK,
GD_OP_EVENT_LOCK,
GD_OP_EVENT_RCVD_ACC,
GD_OP_EVENT_ALL_ACC,
GD_OP_EVENT_STAGE_ACC,
GD_OP_EVENT_COMMIT_ACC,
GD_OP_EVENT_RCVD_RJT,
GD_OP_EVENT_STAGE_OP,
GD_OP_EVENT_COMMIT_OP,
GD_OP_EVENT_UNLOCK,
GD_OP_EVENT_START_UNLOCK,
GD_OP_EVENT_MAX
} glusterd_op_sm_event_type_t;
struct glusterd_op_sm_event_ {
struct list_head list;
void *ctx;
glusterd_op_sm_event_type_t event;
};
typedef struct glusterd_op_sm_event_ glusterd_op_sm_event_t;
typedef int (*glusterd_op_sm_ac_fn) (glusterd_op_sm_event_t *, void *);
typedef struct glusterd_op_sm_ {
glusterd_op_sm_state_t next_state;
glusterd_op_sm_ac_fn handler;
} glusterd_op_sm_t;
typedef enum glusterd_op_ {
GD_OP_NONE = 0,
GD_OP_CREATE_VOLUME,
GD_OP_START_BRICK,
GD_OP_STOP_BRICK,
GD_OP_DELETE_VOLUME,
GD_OP_START_VOLUME,
GD_OP_STOP_VOLUME,
GD_OP_RENAME_VOLUME,
GD_OP_DEFRAG_VOLUME,
GD_OP_ADD_BRICK,
GD_OP_REMOVE_BRICK,
GD_OP_REPLACE_BRICK,
GD_OP_SYNC_VOLUME,
GD_OP_LOG_FILENAME,
GD_OP_LOG_LOCATE,
GD_OP_LOG_ROTATE,
GD_OP_MAX,
} glusterd_op_t;
typedef struct glusterd_op_sm_state_info_ {
glusterd_op_sm_state_t state;
struct timeval time;
} glusterd_op_sm_state_info_t;
struct glusterd_op_info_ {
glusterd_op_sm_state_info_t state;
int32_t pending_count;
int32_t op_count;
glusterd_op_t op[GD_OP_MAX];
glusterd_op_t pending_op[GD_OP_MAX];
glusterd_op_t commit_op[GD_OP_MAX];
struct list_head op_peers;
void *op_ctx[GD_OP_MAX];
rpcsvc_request_t *req;
int32_t op_ret;
int32_t op_errno;
pthread_mutex_t lock;
int32_t cli_op;
gf_boolean_t ctx_free[GD_OP_MAX];
};
typedef struct glusterd_op_info_ glusterd_op_info_t;
struct glusterd_op_start_volume_ctx_ {
char volume_name[GD_VOLUME_NAME_MAX];
};
typedef struct glusterd_op_start_volume_ctx_ glusterd_op_start_volume_ctx_t;
typedef struct glusterd_op_start_volume_ctx_ glusterd_op_delete_volume_ctx_t;
struct glusterd_op_log_filename_ctx_ {
char volume_name[GD_VOLUME_NAME_MAX];
char brick[GD_VOLUME_NAME_MAX];
char path[PATH_MAX];
};
typedef struct glusterd_op_log_filename_ctx_ glusterd_op_log_filename_ctx_t;
struct glusterd_op_lock_ctx_ {
uuid_t uuid;
rpcsvc_request_t *req;
};
typedef struct glusterd_op_lock_ctx_ glusterd_op_lock_ctx_t;
struct glusterd_op_stage_ctx_ {
rpcsvc_request_t *req;
gd1_mgmt_stage_op_req stage_req;
};
typedef struct glusterd_op_stage_ctx_ glusterd_op_stage_ctx_t;
struct glusterd_op_commit_ctx_ {
rpcsvc_request_t *req;
gd1_mgmt_stage_op_req stage_req;
};
typedef struct glusterd_op_commit_ctx_ glusterd_op_commit_ctx_t;
int
glusterd_op_sm_new_event (glusterd_op_sm_event_type_t event_type,
glusterd_op_sm_event_t **new_event);
int
glusterd_op_sm_inject_event (glusterd_op_sm_event_type_t event_type,
void *ctx);
int
glusterd_op_sm_init ();
int
glusterd_op_sm ();
int32_t
glusterd_op_set_ctx (glusterd_op_t op, void *ctx);
int32_t
glusterd_op_set_op (glusterd_op_t op);
int32_t
glusterd_op_clear_pending_op (glusterd_op_t op);
int32_t
glusterd_op_clear_commit_op (glusterd_op_t op);
int
glusterd_op_build_payload (glusterd_op_t op, gd1_mgmt_stage_op_req **req);
int32_t
glusterd_op_stage_validate (gd1_mgmt_stage_op_req *req);
int32_t
glusterd_op_commit_perform (gd1_mgmt_stage_op_req *req);
void *
glusterd_op_get_ctx (glusterd_op_t op);
int32_t
glusterd_op_set_req (rpcsvc_request_t *req);
int32_t
glusterd_op_set_cli_op (gf_mgmt_procnum op);
int32_t
glusterd_op_send_cli_response (int32_t op, int32_t op_ret,
int32_t op_errno, rpcsvc_request_t *req);
int32_t
glusterd_op_get_op ();
int32_t
glusterd_op_clear_pending_op (glusterd_op_t op);
int32_t
glusterd_op_clear_commit_op (glusterd_op_t op);
int32_t
glusterd_op_clear_op (glusterd_op_t op);
int32_t
glusterd_op_clear_ctx (glusterd_op_t op);
int32_t
glusterd_opinfo_unlock();
int32_t
glusterd_op_set_ctx_free (glusterd_op_t op, gf_boolean_t ctx_free);
int32_t
glusterd_op_clear_ctx_free (glusterd_op_t op);
gf_boolean_t
glusterd_op_get_ctx_free (glusterd_op_t op);
#endif
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