mirror of
https://github.com/ElementsProject/lightning.git
synced 2024-11-20 02:27:51 +01:00
b8285db263
We tal_dup_arr() it, which does take. Make it const in the structure; the tal_dup_arr() removes the const, so it compiles without it, but it's misleading. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
#include <ccan/mem/mem.h>
|
|
#include <gossipd/broadcast.h>
|
|
|
|
struct broadcast_state *new_broadcast_state(tal_t *ctx)
|
|
{
|
|
struct broadcast_state *bstate = tal(ctx, struct broadcast_state);
|
|
uintmap_init(&bstate->broadcasts);
|
|
/* Skip 0 because we initialize peers with 0 */
|
|
bstate->next_index = 1;
|
|
return bstate;
|
|
}
|
|
|
|
static void destroy_queued_message(struct queued_message *msg,
|
|
struct broadcast_state *bstate)
|
|
{
|
|
uintmap_del(&bstate->broadcasts, msg->index);
|
|
}
|
|
|
|
static struct queued_message *new_queued_message(const tal_t *ctx,
|
|
struct broadcast_state *bstate,
|
|
const u8 *payload TAKES,
|
|
u64 index)
|
|
{
|
|
struct queued_message *msg = tal(ctx, struct queued_message);
|
|
msg->payload = tal_dup_arr(msg, u8, payload, tal_len(payload), 0);
|
|
msg->index = index;
|
|
uintmap_add(&bstate->broadcasts, index, msg);
|
|
tal_add_destructor2(msg, destroy_queued_message, bstate);
|
|
return msg;
|
|
}
|
|
|
|
bool replace_broadcast(const tal_t *ctx,
|
|
struct broadcast_state *bstate,
|
|
u64 *index,
|
|
const u8 *payload TAKES)
|
|
{
|
|
struct queued_message *msg;
|
|
bool evicted = false;
|
|
|
|
msg = uintmap_get(&bstate->broadcasts, *index);
|
|
if (msg) {
|
|
tal_free(msg);
|
|
evicted = true;
|
|
}
|
|
|
|
/* Now add the message to the queue */
|
|
msg = new_queued_message(ctx, bstate, payload, bstate->next_index++);
|
|
*index = msg->index;
|
|
return evicted;
|
|
}
|
|
|
|
struct queued_message *next_broadcast_message(struct broadcast_state *bstate, u64 last_index)
|
|
{
|
|
return uintmap_after(&bstate->broadcasts, &last_index);
|
|
}
|