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0d2a4830ed
I decided to try a faster implementation, only to find our crc32c was not correct! Ouch. I removed the crc32c functions from ccan/crc, and added a new crc32c module which has the Mark Adler x86-64-optimized variants. We bump gossip_store version again, since csums have changed. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
#ifndef LIGHTNING_COMMON_GOSSIP_STORE_H
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#define LIGHTNING_COMMON_GOSSIP_STORE_H
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#include "config.h"
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#include <ccan/endian/endian.h>
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#include <ccan/short_types/short_types.h>
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#include <ccan/tal/tal.h>
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struct per_peer_state;
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/**
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* gossip_store -- On-disk storage related information
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*/
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#define GOSSIP_STORE_VERSION 7
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/**
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* Bit of length we use to mark a deleted record.
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*/
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#define GOSSIP_STORE_LEN_DELETED_BIT 0x80000000U
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/**
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* gossip_hdr -- On-disk format header.
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*/
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struct gossip_hdr {
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beint32_t len; /* Length of message after header. */
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beint32_t crc; /* crc of message of timestamp, after header. */
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beint32_t timestamp; /* timestamp of msg. */
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};
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/**
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* Direct store accessor: loads gossip msg from store.
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*
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* Returns NULL and resets time_to_next_gossip(pps) if there are no
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* more gossip msgs.
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*/
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u8 *gossip_store_next(const tal_t *ctx, struct per_peer_state *pps);
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/**
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* Switches the gossip store fd, and gets to the correct offset.
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*/
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void gossip_store_switch_fd(struct per_peer_state *pps,
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int newfd, u64 offset_shorter);
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/**
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* Sets up the tiemstamp filter once they told us to set it.(
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*/
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void gossip_setup_timestamp_filter(struct per_peer_state *pps,
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u32 first_timestamp,
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u32 timestamp_range);
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#endif /* LIGHTNING_COMMON_GOSSIP_STORE_H */
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