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#ifndef MEMCACHE_REQ_H

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#define MEMCACHE_REQ_H

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#include <sys/queue.h>

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#include "../memcache.h"

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#include "connection.h"

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struct memcache_req {

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    // the memcache context that we belong to

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    struct memcache *mc;

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    // the command to execute

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    enum memcache_command cmd_type;

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    // our key/obj

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    struct memcache_key key;

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    struct memcache_obj obj;

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    struct memcache_buf buf;

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    // our state

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    enum memcache_req_state state;

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    // our user callback argument

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    void *cb_arg;

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    // the conn 

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    struct memcache_connection *conn;

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    // we are a member of struct memcache_server.req_queue

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    TAILQ_ENTRY(memcache_req) reqqueue_node;

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};

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/*

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 * Allocate and return a new req, or NULL if unsuccesfull.

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 */

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struct memcache_req *memcache_req_alloc (struct memcache *mc, enum memcache_command cmd_type, const struct memcache_key *key, void *cb_arg);

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/*

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 * An error occurred, and the request must be abandoned. This will assume that the req is not active or enqueued

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 * anymore, and the req should not be accessed by memcache_* code after this.

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 */

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void memcache_req_error (struct memcache_req *req);

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/*

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 * Free an unused req. Should always be called by the user, not via internal means.

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 */

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void memcache_req_free (struct memcache_req *req);

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#endif /* MEMCACHE_REQ_H */