6a3797e164
In gossip, the header overhead we get from: https://github.com/solana-labs/solana/blob/de9ac43eb/core/src/cluster_info.rs#L434-L435 https://github.com/solana-labs/solana/blob/de9ac43eb/core/src/crds_value.rs#L31-L36 https://github.com/solana-labs/solana/blob/de9ac43eb/core/src/crds_value.rs#L73 already exceeds SIZE_OF_NONCE in shreds. We also need aditional meta-data (wallclock, source pubkey, ...). Which means that given the SHRED_PAYLOAD_SIZE, we cannot fit all these in PACKET_DATA_SIZE: https://github.com/solana-labs/solana/blob/de9ac43eb/ledger/src/shred.rs#L80 On top of that, we need 2 shred payloads as the proof of duplicate. So each DuplicateShred crds value includes only a chunk of the payload, along with the meta-data to reconstruct the full payload from the chunks on the receiving end.
28 lines
1.0 KiB
Rust
28 lines
1.0 KiB
Rust
extern crate rustc_version;
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use rustc_version::{version_meta, Channel};
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fn main() {
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// Copied and adapted from
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// https://github.com/Kimundi/rustc-version-rs/blob/1d692a965f4e48a8cb72e82cda953107c0d22f47/README.md#example
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// Licensed under Apache-2.0 + MIT
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match version_meta().unwrap().channel {
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Channel::Stable => {
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println!("cargo:rustc-cfg=RUSTC_WITHOUT_SPECIALIZATION");
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}
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Channel::Beta => {
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println!("cargo:rustc-cfg=RUSTC_WITHOUT_SPECIALIZATION");
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}
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Channel::Nightly => {
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println!("cargo:rustc-cfg=RUSTC_WITH_SPECIALIZATION");
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}
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Channel::Dev => {
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println!("cargo:rustc-cfg=RUSTC_WITH_SPECIALIZATION");
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// See https://github.com/solana-labs/solana/issues/11055
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// We may be running the custom `rust-bpf-builder` toolchain,
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// which currently needs `#![feature(proc_macro_hygiene)]` to
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// be applied.
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println!("cargo:rustc-cfg=RUSTC_NEEDS_PROC_MACRO_HYGIENE");
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}
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}
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}
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