Since bitcoind doesn't propagate non-main chains, there's little point
trying to be smart when we see them. This simplifies things immensely.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
It's primitive, but we re-broadcast any txs not included in the main
chain every time the tip moves. We only track transactions we are
watching, but that turns out to cover every transaction we generate
anyway.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This turns out to make life easier for watching HTLC timeouts (we just
place a new watch for each HTLC).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Since any transaction with all segregated-witness inputs is non-malleable,
and all our transactions are that, we can remove normalized txids.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
There isn't a single blockhash; we may be on multiple forks. But the one
caller which cares is commit_tx_depth(), which wants to know if the tx is
spendable yet. So that uses get_last_mediantime().
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Rather than polling for interesting bitcoin txs via importaddress, we use
the chain topology to register our interest directly.x
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This gets the median time of the block the tx is in. If there is more
than one (different tips), it gets the last median time.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This allows us to track precise transaction depth ourselves,
particularly in the case of branching.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
