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broadcast: invert ownership of messages.

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Make the update/announce messages own the element in the broadcast map
not the other way around.

Then we keep a pointer to the message, and when we free it
(eg. channel closed, update replaces it), it gets freed from the
broadcast map automatically.

The result is much nicer!

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2018-05-10 21:52:37 +09:30
committed by Christian Decker
parent 8940528bdb
commit c71e16f784
8 changed files with 60 additions and 129 deletions
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15
gossipd/routing.h
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@@ -34,11 +34,8 @@ struct half_chan {
* things indicated direction wrt the `channel_id` */
u16 flags;
/* Cached `channel_update` we might forward to new peers (or 0) */
u64 channel_update_msgidx;
/* If it's a private update, it's not in the broadcast map. */
const u8 *private_update;
/* Cached `channel_update` we might forward to new peers (or NULL) */
const u8 *channel_update;
/* If greater than current time, this connection should not
* be used for routing. */
@@ -57,8 +54,8 @@ struct chan {
/* node[0].id < node[1].id */
struct node *nodes[2];
/* Cached `channel_announcement` we might forward to new peers (or 0) */
u64 channel_announce_msgidx;
/* NULL if not announced yet */
const u8 *channel_announce;
/* Is this a public channel, or was it only added locally? */
bool public;
@@ -94,8 +91,8 @@ struct node {
/* Color to be used when displaying the name */
u8 rgb_color[3];
/* Cached `node_announcement` we might forward to new peers (or 0). */
u64 node_announce_msgidx;
/* Cached `node_announcement` we might forward to new peers (or NULL). */
const u8 *node_announcement;
};
const secp256k1_pubkey *node_map_keyof_node(const struct node *n);