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/* $Id: syncmgr.h 319 2008-04-19 08:24:17Z eino.tuominen $ */
/*
* Copyright (c) 2006,2007
* Antti Siira <antasi@iki.fi>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef SYNCMGR_H
#define SYNCMGR_H
#include "srvutils.h"
/* Sync protocol:
* - All integers are 32bit in network order
*
* Message:
** type int32_t
** length uint32_t
** startup | sync | None
*
* Startup:
** buffer int32_t
** index uint32_t
** filter bitarray_base_t[FILTER_SIZE]
*
* Sync:
** digest sha_256_t
*
*/
typedef struct
{
int32_t type;
uint32_t length;
} sync_msg_t;
typedef struct
{
int32_t buffer;
uint32_t index;
bitarray_base_t filter[FILTER_SIZE];
} startup_sync_t;
typedef struct
{
sha_256_t digest;
} oper_sync_t;
typedef struct
{
bitindex_t filter_size;
int32_t num_bufs;
} sync_config_t;
typedef struct
{
uint32_t count;
} aggregate_sync_t;
int min(int x, int y);
int send_startup_sync(peer_t *peer, startup_sync_t *sync);
int send_oper_sync(peer_t *peer, oper_sync_t *sync);
int force_peer_aggregate();
void send_filters(peer_t *peer);
void *recv_syncs(void *arg);
int recv_sync_msg(peer_t *peer);
int recv_startup_sync(peer_t *peer);
int recv_oper_sync(peer_t *peer);
startup_sync_t sston(startup_sync_t ss); /* Startup sync to network order */
startup_sync_t sstoh(startup_sync_t ss); /* Startup sync to host order */
#endif
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