Add Sapling support to z_getbalance and z_gettotalbalance
Also includes preparatory changes for various other RPCs that depend on `GetFilteredNotes` etc.
Closes#3214.
Revise help output for z_sendmany
The previous version of the usage message for z_sendmany used the word "Change"
in an ambiguous way.
The intent was to describe "Change" the noun that indicates the portion of a
transaction's funds that are returned to the payer, however the context did not
provide an immediate cue to differentiate from the verb form meaning
"to alter". Indeed, in other help strings in the same file that meaning of the
word is correct, i.e. the verb form is used. Moreover a typo in the form of a
missing "a" later in the same sentence exacerbated the problem, by decreasing
readability precisely where context could reduce confusion.
When used, it is cast to an integer_coeff_t, which is currently a long.
On LP64 systems, this cast is lossless. Issues with LLP64 systems will
be addressed later.
generalize mininode.py protocol versioning
Fixes#2982 -- replace `overwintered` boolean argument to NodeConn constructor with a protocol version integer, so that adding Sapling (and beyond) will be easier.
This could in future be refactored to be generic over PaymentAddress and
NotePlaintext in the return type, but for now let's be explicit about which
returned notes are for Sprout vs Sapling, and handle them separately.
Co-authored-by: Sean Bowe <ewillbefull@gmail.com>
Track Sapling notes and nullifiers in the wallet (in-memory only, no persistence to disk)
Part of #3061. Add in-memory tracking of Sapling notes and nullifiers to the wallet.
Windows cross-compile has currently-unavoidable warnings. Upstream Bitcoin Core
has them as well. For now, let's remove this from the default configuration, and
add it to the Linux and OSX CI builders (so we effectively still enforce it for
merged PRs).
By using the flags defined through ./configure instead, libzcash will react to
configuration and build system changes (such as PIC_FLAGS being empty for
Windows builds).
Set Sapling mainnet activation height
In mainnet, block #419200 is expected to appear on October 28, 2018, Zcash's birthday.
In testnet, block #280000 is expected about a week from now. (Current height is ~275249, plus 4032 blocks for a week, plus a little more just to make the number nice.)
These are the activation heights for Sapling in mainnet and testnet, respectively. Protocol version is also changed.
Always write the empty root down as the best root, since we may roll back
In [`3577de83`](3577de83aa) we started not writing the Sapling empty root down as the "best" anchor because we had changed the encodings and didn't want users who compiled from master to have inconsistent coindb's in the future if the encoding changed again for some reason.
However, if we don't write the empty root down then during rollbacks to Sapling activation we leave the best anchor on disk different from what's in the cache, which will trigger an assertion.
This reverts the change from `3577de83` since we've settled on the encodings.
