2 unstable releases
0.2.0 | Oct 7, 2024 |
---|---|
0.1.0 | May 9, 2024 |
#19 in #invoke
299 downloads per month
11KB
142 lines
solana-invoke
A drop-in replacement for solana_program::program::invoke*
with better compute and heap efficiency
Summary
The current CPI functions solana_program::program::invoke*
perform unnecessary copies and allocations. This crate removes these inefficiencies in a manner that is 100% backwards compatible.
The compute and heap savings scale with the amount of accounts and data passed in on CPI. Even in the test program featured in test-program/
, which passes in only two accounts and O(16 bytes) of data, a significant saving is observed (overhead reduced from 536 cus -> 197 cus).
// test-program schematic. logs and asserts are redacted.
// A simple solana program that transfers 1 lamport twice
fn process_instruction(
_program_id: &Pubkey,
accounts: &[AccountInfo],
_data: &[u8],
) -> ProgramResult {
// Send from account zero to account one, thrice.
// 1) First with standard invoke.
// 2) Then with our invoke
// 3) Then with our invoke_signed_unchecked
let transfer =
solana_program::system_instruction::transfer(accounts[0].key, accounts[1].key, 1);
// 1) First with standard invoke_signed.
solana_program::program::invoke(&transfer, &accounts[..2])?;
// 2) Then with our invoke_signed
solana_invoke::invoke(&transfer, &accounts[..2])?;
// 3) Then with our invoke_signed
solana_invoke::invoke_unchecked(&transfer, &accounts[..2])?;
Ok(())
}
Output:
Program 1111111QLbz7JHiBTspS962RLKV8GndWFwiEaqKM invoke [1]
Program log: invoking system program via solana_program::program::invoke
Program 11111111111111111111111111111111 invoke [2]
Program 11111111111111111111111111111111 success
Program log: invoked system program via solana_program::program::invoke successfully: 536 cus
Program log: invoking system program via our invoke
Program 11111111111111111111111111111111 invoke [2]
Program 11111111111111111111111111111111 success
Program log: invoked system program via our invoke successfully: 392 cus
Program log: invoking system program via our invoke
Program 11111111111111111111111111111111 invoke [2]
Program 11111111111111111111111111111111 success
Program log: invoked system program via our invoke successfully: 197 cus
Program 1111111QLbz7JHiBTspS962RLKV8GndWFwiEaqKM consumed 7864 of 200000 compute units
Program 1111111QLbz7JHiBTspS962RLKV8GndWFwiEaqKM success
Dependencies
~11–19MB
~267K SLoC