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annotate rust/hg-core/src/operations/debugdata.rs @ 48973:e2f8ed37201c stable

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rust-status: cap the number of concurrent threads to 16 During benchmarking it was determined that the use of more threads is very advantageous... until we use more than 16. This is most likely due to some resource contention (thrashing, etc.). Until we have time to figure out and fix the underlying cause, let's just cap at 16 threads. Differential Revision: https://phab.mercurial-scm.org/D12384
author Rapha?l Gom?s <rgomes@octobus.net>
date Fri, 18 Mar 2022 16:15:44 +0100
parents f2f57724d4eb
children bfc117647c71
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1 // debugdata.rs
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2 //
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3 // Copyright 2020 Antoine Cezar <antoine.cezar@octobus.net>
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4 //
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5 // This software may be used and distributed according to the terms of the
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6 // GNU General Public License version 2 or any later version.
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7
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8 use crate::repo::Repo;
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9 use crate::revlog::revlog::{Revlog, RevlogError};
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10
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11 /// Kind of data to debug
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12 #[derive(Debug, Copy, Clone)]
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13 pub enum DebugDataKind {
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14 Changelog,
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15 Manifest,
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16 }
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17
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18 /// Dump the contents data of a revision.
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19 pub fn debug_data(
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20 repo: &Repo,
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21 revset: &str,
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22 kind: DebugDataKind,
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23 ) -> Result<Vec<u8>, RevlogError> {
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24 let index_file = match kind {
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25 DebugDataKind::Changelog => "00changelog.i",
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26 DebugDataKind::Manifest => "00manifest.i",
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27 };
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28 let revlog = Revlog::open(repo, index_file, None)?;
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29 let rev =
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30 crate::revset::resolve_rev_number_or_hex_prefix(revset, &revlog)?;
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31 let data = revlog.get_rev_data(rev)?;
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32 Ok(data.into_owned())
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33 }