aa23c2a2b2
Standardizes the is_xxx script function all take a script length, and changes their first-level callers to pass it. This has several knock on benefits: - We remove the repeated tal_count/tal_bytelen calls on the script, in particular the redundant calls that result when we must check for multiple types of script - which is almost all cases. - We remove the dependency on the memory being tal-allocated (It is, in all cases, but theres no reason we need to require that). - We remove all cases where we create a copy of the script just to id it. - We remove all allocations for non-interesting scripts while iterating block txs in process_getfilteredblock_step1(). - We remove all allocations *including for potentially interesting scripts* in topo_add_utxos(). Signed-off-by: Jon Griffiths <jon_p_griffiths@yahoo.com>
These are standard bitcoin manipulation routines which should be provided by any normal bitcoin library in whatever language you choose. The ones here are standalone ones taken from bitcoin core and some I wrote, many taken from bitcoin-iterate and pasted in here.