`awaitinvoice` can be used to wait on a specific invoice to be
completed. If the invoice was previously paid, then the command
returns immediately, otherwise it'll block until the invoice is
paid. This complements `waitinvoice` which uses a highwatermark and
waits for the next invoice. I found waitinvoice a bit hard to use
since it doesn't allow waiting for a specific invoice to be completed,
just the next in the insertion order.
Other than being neater (no more global list to edit!), this lets the
new daemon and old daemon have their own separate routines.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This shouldn't happen, but if our RNG is busted and get a duplicate,
r would be NULL.
(scan-build found this)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
`listinvoice` was not handling numeric labels correctly if they are not
passed in as JSON strings (which was the behavior of
`lightning-cli`). So now we accept both string labels as well as numeric
labels.
We need some ordering to deliver them to the JSON "waitinvoice" command;
we use a counter where 0 means "unpaid".
We keep two lists now, one for unpaid and one for paid invoices.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Christian Decker
Rusty Russell