mirror of
https://github.com/meilisearch/meilisearch.git
synced 2024-11-23 02:27:40 +08:00
remove actor index controller
This commit is contained in:
mpostma
parent
9227b7cb2f
commit
ac2af4354d
@ -1,260 +0,0 @@
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use std::collections::HashMap;
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use std::io;
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use std::fs::File;
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use anyhow::Result;
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use flate2::read::GzDecoder;
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use grenad::CompressionType;
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use log::info;
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use milli::update::{IndexDocumentsMethod, UpdateBuilder, UpdateFormat};
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use milli::Index;
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use rayon::ThreadPool;
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use crate::index_controller::updates::{Failed, Processed, Processing};
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use crate::index_controller::{Facets, Settings, UpdateMeta, UpdateResult};
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use crate::option::IndexerOpts;
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pub struct UpdateHandler {
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max_nb_chunks: Option<usize>,
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chunk_compression_level: Option<u32>,
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thread_pool: ThreadPool,
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log_frequency: usize,
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max_memory: usize,
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linked_hash_map_size: usize,
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chunk_compression_type: CompressionType,
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chunk_fusing_shrink_size: u64,
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}
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impl UpdateHandler {
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pub fn new(
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opt: &IndexerOpts,
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) -> anyhow::Result<Self> {
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let thread_pool = rayon::ThreadPoolBuilder::new()
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.num_threads(opt.indexing_jobs.unwrap_or(0))
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.build()?;
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Ok(Self {
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max_nb_chunks: opt.max_nb_chunks,
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chunk_compression_level: opt.chunk_compression_level,
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thread_pool,
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log_frequency: opt.log_every_n,
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max_memory: opt.max_memory.get_bytes() as usize,
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linked_hash_map_size: opt.linked_hash_map_size,
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chunk_compression_type: opt.chunk_compression_type,
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chunk_fusing_shrink_size: opt.chunk_fusing_shrink_size.get_bytes(),
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})
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}
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fn update_buidler(&self, update_id: u64) -> UpdateBuilder {
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// We prepare the update by using the update builder.
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let mut update_builder = UpdateBuilder::new(update_id);
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if let Some(max_nb_chunks) = self.max_nb_chunks {
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update_builder.max_nb_chunks(max_nb_chunks);
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}
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if let Some(chunk_compression_level) = self.chunk_compression_level {
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update_builder.chunk_compression_level(chunk_compression_level);
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}
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update_builder.thread_pool(&self.thread_pool);
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update_builder.log_every_n(self.log_frequency);
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update_builder.max_memory(self.max_memory);
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update_builder.linked_hash_map_size(self.linked_hash_map_size);
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update_builder.chunk_compression_type(self.chunk_compression_type);
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update_builder.chunk_fusing_shrink_size(self.chunk_fusing_shrink_size);
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update_builder
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}
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fn update_documents(
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&self,
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format: UpdateFormat,
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method: IndexDocumentsMethod,
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content: File,
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update_builder: UpdateBuilder,
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primary_key: Option<&str>,
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index: &Index,
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) -> anyhow::Result<UpdateResult> {
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info!("performing document addition");
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// We must use the write transaction of the update here.
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let mut wtxn = index.write_txn()?;
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// Set the primary key if not set already, ignore if already set.
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match (index.primary_key(&wtxn)?, primary_key) {
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(None, Some(ref primary_key)) => {
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index.put_primary_key(&mut wtxn, primary_key)?;
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}
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_ => (),
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}
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let mut builder = update_builder.index_documents(&mut wtxn, index);
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builder.update_format(format);
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builder.index_documents_method(method);
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let gzipped = false;
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let reader = if gzipped {
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Box::new(GzDecoder::new(content))
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} else {
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Box::new(content) as Box<dyn io::Read>
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};
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let result = builder.execute(reader, |indexing_step, update_id| {
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info!("update {}: {:?}", update_id, indexing_step)
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});
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info!("document addition done: {:?}", result);
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match result {
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Ok(addition_result) => wtxn
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.commit()
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.and(Ok(UpdateResult::DocumentsAddition(addition_result)))
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.map_err(Into::into),
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Err(e) => Err(e.into()),
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}
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}
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fn clear_documents(&self, update_builder: UpdateBuilder, index: &Index) -> anyhow::Result<UpdateResult> {
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// We must use the write transaction of the update here.
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let mut wtxn = index.write_txn()?;
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let builder = update_builder.clear_documents(&mut wtxn, index);
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match builder.execute() {
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Ok(_count) => wtxn
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.commit()
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.and(Ok(UpdateResult::Other))
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.map_err(Into::into),
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Err(e) => Err(e.into()),
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}
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}
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fn update_settings(
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&self,
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settings: &Settings,
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update_builder: UpdateBuilder,
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index: &Index,
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) -> anyhow::Result<UpdateResult> {
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// We must use the write transaction of the update here.
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let mut wtxn = index.write_txn()?;
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let mut builder = update_builder.settings(&mut wtxn, index);
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// We transpose the settings JSON struct into a real setting update.
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if let Some(ref names) = settings.searchable_attributes {
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match names {
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Some(names) => builder.set_searchable_fields(names.clone()),
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None => builder.reset_searchable_fields(),
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}
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}
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// We transpose the settings JSON struct into a real setting update.
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if let Some(ref names) = settings.displayed_attributes {
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match names {
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Some(names) => builder.set_displayed_fields(names.clone()),
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None => builder.reset_displayed_fields(),
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}
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}
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// We transpose the settings JSON struct into a real setting update.
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if let Some(ref facet_types) = settings.faceted_attributes {
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let facet_types = facet_types.clone().unwrap_or_else(|| HashMap::new());
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builder.set_faceted_fields(facet_types);
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}
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// We transpose the settings JSON struct into a real setting update.
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if let Some(ref criteria) = settings.criteria {
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match criteria {
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Some(criteria) => builder.set_criteria(criteria.clone()),
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None => builder.reset_criteria(),
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}
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}
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let result = builder
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.execute(|indexing_step, update_id| info!("update {}: {:?}", update_id, indexing_step));
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match result {
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Ok(()) => wtxn
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.commit()
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.and(Ok(UpdateResult::Other))
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.map_err(Into::into),
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Err(e) => Err(e.into()),
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}
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}
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fn update_facets(
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&self,
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levels: &Facets,
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update_builder: UpdateBuilder,
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index: &Index,
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) -> anyhow::Result<UpdateResult> {
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// We must use the write transaction of the update here.
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let mut wtxn = index.write_txn()?;
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let mut builder = update_builder.facets(&mut wtxn, index);
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if let Some(value) = levels.level_group_size {
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builder.level_group_size(value);
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}
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if let Some(value) = levels.min_level_size {
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builder.min_level_size(value);
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}
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match builder.execute() {
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Ok(()) => wtxn
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.commit()
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.and(Ok(UpdateResult::Other))
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.map_err(Into::into),
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Err(e) => Err(e.into()),
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}
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}
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fn delete_documents(
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&self,
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document_ids: File,
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update_builder: UpdateBuilder,
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index: &Index,
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) -> anyhow::Result<UpdateResult> {
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let ids: Vec<String> = serde_json::from_reader(document_ids)?;
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let mut txn = index.write_txn()?;
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let mut builder = update_builder.delete_documents(&mut txn, index)?;
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// We ignore unexisting document ids
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ids.iter().for_each(|id| { builder.delete_external_id(id); });
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match builder.execute() {
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Ok(deleted) => txn
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.commit()
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.and(Ok(UpdateResult::DocumentDeletion { deleted }))
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.map_err(Into::into),
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Err(e) => Err(e.into())
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}
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}
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pub fn handle_update(
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&self,
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meta: Processing<UpdateMeta>,
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content: File,
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index: &Index,
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) -> Result<Processed<UpdateMeta, UpdateResult>, Failed<UpdateMeta, String>> {
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use UpdateMeta::*;
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let update_id = meta.id();
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let update_builder = self.update_buidler(update_id);
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let result = match meta.meta() {
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DocumentsAddition {
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method,
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format,
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primary_key,
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} => self.update_documents(
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*format,
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*method,
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content,
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update_builder,
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primary_key.as_deref(),
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index,
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),
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ClearDocuments => self.clear_documents(update_builder, index),
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DeleteDocuments => self.delete_documents(content, update_builder, index),
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Settings(settings) => self.update_settings(settings, update_builder, index),
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Facets(levels) => self.update_facets(levels, update_builder, index),
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};
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match result {
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Ok(result) => Ok(meta.process(result)),
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Err(e) => Err(meta.fail(e.to_string())),
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}
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}
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}
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@ -1,423 +0,0 @@
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use std::path::Path;
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use std::sync::{Arc, RwLock};
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use std::io::{Cursor, SeekFrom, Seek};
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use crossbeam_channel::Sender;
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use heed::types::{OwnedType, DecodeIgnore, SerdeJson, ByteSlice};
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use heed::{EnvOpenOptions, Env, Database};
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use serde::{Serialize, Deserialize};
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use std::fs::File;
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use uuid::Uuid;
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use crate::index_controller::updates::*;
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type BEU64 = heed::zerocopy::U64<heed::byteorder::BE>;
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#[derive(Clone)]
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pub struct UpdateStore<M, N, E> {
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env: Env,
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pending_meta: Database<OwnedType<BEU64>, SerdeJson<Pending<M>>>,
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pending: Database<OwnedType<BEU64>, ByteSlice>,
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processed_meta: Database<OwnedType<BEU64>, SerdeJson<Processed<M, N>>>,
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failed_meta: Database<OwnedType<BEU64>, SerdeJson<Failed<M, E>>>,
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aborted_meta: Database<OwnedType<BEU64>, SerdeJson<Aborted<M>>>,
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processing: Arc<RwLock<Option<Processing<M>>>>,
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notification_sender: Sender<()>,
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}
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pub trait HandleUpdate<M, N, E> {
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fn handle_update(&mut self, meta: Processing<M>, content: File) -> Result<Processed<M, N>, Failed<M, E>>;
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}
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impl<M, N, E, F> HandleUpdate<M, N, E> for F
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where F: FnMut(Processing<M>, File) -> Result<Processed<M, N>, Failed<M, E>>
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{
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fn handle_update(&mut self, meta: Processing<M>, content: File) -> Result<Processed<M, N>, Failed<M, E>> {
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self(meta, content)
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}
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}
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impl<M, N, E> UpdateStore<M, N, E>
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where
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M: for<'a> Deserialize<'a> + Serialize + 'static + Send + Sync + Clone,
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N: for<'a> Deserialize<'a> + Serialize + 'static + Send + Sync,
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E: for<'a> Deserialize<'a> + Serialize + 'static + Send + Sync,
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{
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pub fn open<P, U>(
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mut options: EnvOpenOptions,
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path: P,
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mut update_handler: U,
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) -> heed::Result<Arc<Self>>
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where
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P: AsRef<Path>,
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U: HandleUpdate<M, N, E> + Send + 'static,
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{
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options.max_dbs(5);
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let env = options.open(path)?;
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let pending_meta = env.create_database(Some("pending-meta"))?;
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let pending = env.create_database(Some("pending"))?;
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let processed_meta = env.create_database(Some("processed-meta"))?;
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let aborted_meta = env.create_database(Some("aborted-meta"))?;
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let failed_meta = env.create_database(Some("failed-meta"))?;
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let processing = Arc::new(RwLock::new(None));
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let (notification_sender, notification_receiver) = crossbeam_channel::bounded(1);
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// Send a first notification to trigger the process.
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let _ = notification_sender.send(());
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let update_store = Arc::new(UpdateStore {
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env,
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pending,
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pending_meta,
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processed_meta,
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aborted_meta,
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notification_sender,
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failed_meta,
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processing,
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});
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// We need a weak reference so we can take ownership on the arc later when we
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// want to close the index.
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let update_store_weak = Arc::downgrade(&update_store);
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std::thread::spawn(move || {
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// Block and wait for something to process.
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'outer: for _ in notification_receiver {
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loop {
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match update_store_weak.upgrade() {
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Some(update_store) => {
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match update_store.process_pending_update(&mut update_handler) {
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Ok(Some(_)) => (),
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Ok(None) => break,
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Err(e) => eprintln!("error while processing update: {}", e),
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}
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}
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// the ownership on the arc has been taken, we need to exit.
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None => break 'outer,
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}
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}
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}
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});
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Ok(update_store)
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}
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pub fn prepare_for_closing(self) -> heed::EnvClosingEvent {
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self.env.prepare_for_closing()
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}
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/// Returns the new biggest id to use to store the new update.
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fn new_update_id(&self, txn: &heed::RoTxn) -> heed::Result<u64> {
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let last_pending = self.pending_meta
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.remap_data_type::<DecodeIgnore>()
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.last(txn)?
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.map(|(k, _)| k.get());
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let last_processed = self.processed_meta
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.remap_data_type::<DecodeIgnore>()
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.last(txn)?
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.map(|(k, _)| k.get());
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let last_aborted = self.aborted_meta
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.remap_data_type::<DecodeIgnore>()
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.last(txn)?
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.map(|(k, _)| k.get());
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let last_update_id = [last_pending, last_processed, last_aborted]
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.iter()
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.copied()
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.flatten()
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.max();
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match last_update_id {
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Some(last_id) => Ok(last_id + 1),
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None => Ok(0),
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}
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}
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/// Registers the update content in the pending store and the meta
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/// into the pending-meta store. Returns the new unique update id.
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pub fn register_update(
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&self,
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meta: M,
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content: &[u8],
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index_uuid: Uuid,
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) -> heed::Result<Pending<M>> {
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let mut wtxn = self.env.write_txn()?;
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// We ask the update store to give us a new update id, this is safe,
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// no other update can have the same id because we use a write txn before
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// asking for the id and registering it so other update registering
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// will be forced to wait for a new write txn.
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let update_id = self.new_update_id(&wtxn)?;
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let update_key = BEU64::new(update_id);
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let meta = Pending::new(meta, update_id, index_uuid);
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self.pending_meta.put(&mut wtxn, &update_key, &meta)?;
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self.pending.put(&mut wtxn, &update_key, content)?;
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wtxn.commit()?;
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if let Err(e) = self.notification_sender.try_send(()) {
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assert!(!e.is_disconnected(), "update notification channel is disconnected");
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}
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Ok(meta)
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}
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/// Executes the user provided function on the next pending update (the one with the lowest id).
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/// This is asynchronous as it let the user process the update with a read-only txn and
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/// only writing the result meta to the processed-meta store *after* it has been processed.
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fn process_pending_update<U>(&self, handler: &mut U) -> heed::Result<Option<()>>
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where
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U: HandleUpdate<M, N, E> + Send + 'static,
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{
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// Create a read transaction to be able to retrieve the pending update in order.
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let rtxn = self.env.read_txn()?;
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let first_meta = self.pending_meta.first(&rtxn)?;
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// If there is a pending update we process and only keep
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// a reader while processing it, not a writer.
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match first_meta {
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Some((first_id, pending)) => {
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let first_content = self.pending
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.get(&rtxn, &first_id)?
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.expect("associated update content");
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// we change the state of the update from pending to processing before we pass it
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// to the update handler. Processing store is non persistent to be able recover
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// from a failure
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let processing = pending.processing();
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self.processing
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.write()
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.unwrap()
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.replace(processing.clone());
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let mut cursor = Cursor::new(first_content);
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let mut file = tempfile::tempfile()?;
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std::io::copy(&mut cursor, &mut file)?;
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file.seek(SeekFrom::Start(0))?;
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// Process the pending update using the provided user function.
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let result = handler.handle_update(processing, file);
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drop(rtxn);
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// Once the pending update have been successfully processed
|
||||
// we must remove the content from the pending and processing stores and
|
||||
// write the *new* meta to the processed-meta store and commit.
|
||||
let mut wtxn = self.env.write_txn()?;
|
||||
self.processing
|
||||
.write()
|
||||
.unwrap()
|
||||
.take();
|
||||
self.pending_meta.delete(&mut wtxn, &first_id)?;
|
||||
self.pending.delete(&mut wtxn, &first_id)?;
|
||||
match result {
|
||||
Ok(processed) => self.processed_meta.put(&mut wtxn, &first_id, &processed)?,
|
||||
Err(failed) => self.failed_meta.put(&mut wtxn, &first_id, &failed)?,
|
||||
}
|
||||
wtxn.commit()?;
|
||||
|
||||
Ok(Some(()))
|
||||
},
|
||||
None => Ok(None)
|
||||
}
|
||||
}
|
||||
|
||||
/// Execute the user defined function with the meta-store iterators, the first
|
||||
/// iterator is the *processed* meta one, the second the *aborted* meta one
|
||||
/// and, the last is the *pending* meta one.
|
||||
pub fn iter_metas<F, T>(&self, mut f: F) -> heed::Result<T>
|
||||
where
|
||||
F: for<'a> FnMut(
|
||||
Option<Processing<M>>,
|
||||
heed::RoIter<'a, OwnedType<BEU64>, SerdeJson<Processed<M, N>>>,
|
||||
heed::RoIter<'a, OwnedType<BEU64>, SerdeJson<Aborted<M>>>,
|
||||
heed::RoIter<'a, OwnedType<BEU64>, SerdeJson<Pending<M>>>,
|
||||
heed::RoIter<'a, OwnedType<BEU64>, SerdeJson<Failed<M, E>>>,
|
||||
) -> heed::Result<T>,
|
||||
{
|
||||
let rtxn = self.env.read_txn()?;
|
||||
|
||||
// We get the pending, processed and aborted meta iterators.
|
||||
let processed_iter = self.processed_meta.iter(&rtxn)?;
|
||||
let aborted_iter = self.aborted_meta.iter(&rtxn)?;
|
||||
let pending_iter = self.pending_meta.iter(&rtxn)?;
|
||||
let processing = self.processing.read().unwrap().clone();
|
||||
let failed_iter = self.failed_meta.iter(&rtxn)?;
|
||||
|
||||
// We execute the user defined function with both iterators.
|
||||
(f)(processing, processed_iter, aborted_iter, pending_iter, failed_iter)
|
||||
}
|
||||
|
||||
/// Returns the update associated meta or `None` if the update doesn't exist.
|
||||
pub fn meta(&self, update_id: u64) -> heed::Result<Option<UpdateStatus<M, N, E>>> {
|
||||
let rtxn = self.env.read_txn()?;
|
||||
let key = BEU64::new(update_id);
|
||||
|
||||
if let Some(ref meta) = *self.processing.read().unwrap() {
|
||||
if meta.id() == update_id {
|
||||
return Ok(Some(UpdateStatus::Processing(meta.clone())));
|
||||
}
|
||||
}
|
||||
|
||||
if let Some(meta) = self.pending_meta.get(&rtxn, &key)? {
|
||||
return Ok(Some(UpdateStatus::Pending(meta)));
|
||||
}
|
||||
|
||||
if let Some(meta) = self.processed_meta.get(&rtxn, &key)? {
|
||||
return Ok(Some(UpdateStatus::Processed(meta)));
|
||||
}
|
||||
|
||||
if let Some(meta) = self.aborted_meta.get(&rtxn, &key)? {
|
||||
return Ok(Some(UpdateStatus::Aborted(meta)));
|
||||
}
|
||||
|
||||
if let Some(meta) = self.failed_meta.get(&rtxn, &key)? {
|
||||
return Ok(Some(UpdateStatus::Failed(meta)));
|
||||
}
|
||||
|
||||
Ok(None)
|
||||
}
|
||||
|
||||
/// Aborts an update, an aborted update content is deleted and
|
||||
/// the meta of it is moved into the aborted updates database.
|
||||
///
|
||||
/// Trying to abort an update that is currently being processed, an update
|
||||
/// that as already been processed or which doesn't actually exist, will
|
||||
/// return `None`.
|
||||
#[allow(dead_code)]
|
||||
pub fn abort_update(&self, update_id: u64) -> heed::Result<Option<Aborted<M>>> {
|
||||
let mut wtxn = self.env.write_txn()?;
|
||||
let key = BEU64::new(update_id);
|
||||
|
||||
// We cannot abort an update that is currently being processed.
|
||||
if self.pending_meta.first(&wtxn)?.map(|(key, _)| key.get()) == Some(update_id) {
|
||||
return Ok(None);
|
||||
}
|
||||
|
||||
let pending = match self.pending_meta.get(&wtxn, &key)? {
|
||||
Some(meta) => meta,
|
||||
None => return Ok(None),
|
||||
};
|
||||
|
||||
let aborted = pending.abort();
|
||||
|
||||
self.aborted_meta.put(&mut wtxn, &key, &aborted)?;
|
||||
self.pending_meta.delete(&mut wtxn, &key)?;
|
||||
self.pending.delete(&mut wtxn, &key)?;
|
||||
|
||||
wtxn.commit()?;
|
||||
|
||||
Ok(Some(aborted))
|
||||
}
|
||||
|
||||
/// Aborts all the pending updates, and not the one being currently processed.
|
||||
/// Returns the update metas and ids that were successfully aborted.
|
||||
#[allow(dead_code)]
|
||||
pub fn abort_pendings(&self) -> heed::Result<Vec<(u64, Aborted<M>)>> {
|
||||
let mut wtxn = self.env.write_txn()?;
|
||||
let mut aborted_updates = Vec::new();
|
||||
|
||||
// We skip the first pending update as it is currently being processed.
|
||||
for result in self.pending_meta.iter(&wtxn)?.skip(1) {
|
||||
let (key, pending) = result?;
|
||||
let id = key.get();
|
||||
aborted_updates.push((id, pending.abort()));
|
||||
}
|
||||
|
||||
for (id, aborted) in &aborted_updates {
|
||||
let key = BEU64::new(*id);
|
||||
self.aborted_meta.put(&mut wtxn, &key, &aborted)?;
|
||||
self.pending_meta.delete(&mut wtxn, &key)?;
|
||||
self.pending.delete(&mut wtxn, &key)?;
|
||||
}
|
||||
|
||||
wtxn.commit()?;
|
||||
|
||||
Ok(aborted_updates)
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
use std::thread;
|
||||
use std::time::{Duration, Instant};
|
||||
|
||||
impl<M, N, F, E> HandleUpdate<M, N, E> for F
|
||||
where F: FnMut(Processing<M>, &[u8]) -> Result<Processed<M, N>, Failed<M, E>> + Send + 'static {
|
||||
fn handle_update(&mut self, meta: Processing<M>, content: &[u8]) -> Result<Processed<M, N>, Failed<M, E>> {
|
||||
self(meta, content)
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn simple() {
|
||||
let dir = tempfile::tempdir().unwrap();
|
||||
let mut options = EnvOpenOptions::new();
|
||||
options.map_size(4096 * 100);
|
||||
let update_store = UpdateStore::open(options, dir, |meta: Processing<String>, _content: &_| -> Result<_, Failed<_, ()>> {
|
||||
let new_meta = meta.meta().to_string() + " processed";
|
||||
let processed = meta.process(new_meta);
|
||||
Ok(processed)
|
||||
}).unwrap();
|
||||
|
||||
let meta = String::from("kiki");
|
||||
let update = update_store.register_update(meta, &[]).unwrap();
|
||||
thread::sleep(Duration::from_millis(100));
|
||||
let meta = update_store.meta(update.id()).unwrap().unwrap();
|
||||
if let UpdateStatus::Processed(Processed { success, .. }) = meta {
|
||||
assert_eq!(success, "kiki processed");
|
||||
} else {
|
||||
panic!()
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
#[ignore]
|
||||
fn long_running_update() {
|
||||
let dir = tempfile::tempdir().unwrap();
|
||||
let mut options = EnvOpenOptions::new();
|
||||
options.map_size(4096 * 100);
|
||||
let update_store = UpdateStore::open(options, dir, |meta: Processing<String>, _content:&_| -> Result<_, Failed<_, ()>> {
|
||||
thread::sleep(Duration::from_millis(400));
|
||||
let new_meta = meta.meta().to_string() + "processed";
|
||||
let processed = meta.process(new_meta);
|
||||
Ok(processed)
|
||||
}).unwrap();
|
||||
|
||||
let before_register = Instant::now();
|
||||
|
||||
let meta = String::from("kiki");
|
||||
let update_kiki = update_store.register_update(meta, &[]).unwrap();
|
||||
assert!(before_register.elapsed() < Duration::from_millis(200));
|
||||
|
||||
let meta = String::from("coco");
|
||||
let update_coco = update_store.register_update(meta, &[]).unwrap();
|
||||
assert!(before_register.elapsed() < Duration::from_millis(200));
|
||||
|
||||
let meta = String::from("cucu");
|
||||
let update_cucu = update_store.register_update(meta, &[]).unwrap();
|
||||
assert!(before_register.elapsed() < Duration::from_millis(200));
|
||||
|
||||
thread::sleep(Duration::from_millis(400 * 3 + 100));
|
||||
|
||||
let meta = update_store.meta(update_kiki.id()).unwrap().unwrap();
|
||||
if let UpdateStatus::Processed(Processed { success, .. }) = meta {
|
||||
assert_eq!(success, "kiki processed");
|
||||
} else {
|
||||
panic!()
|
||||
}
|
||||
|
||||
let meta = update_store.meta(update_coco.id()).unwrap().unwrap();
|
||||
if let UpdateStatus::Processed(Processed { success, .. }) = meta {
|
||||
assert_eq!(success, "coco processed");
|
||||
} else {
|
||||
panic!()
|
||||
}
|
||||
|
||||
let meta = update_store.meta(update_cucu.id()).unwrap().unwrap();
|
||||
if let UpdateStatus::Processed(Processed { success, .. }) = meta {
|
||||
assert_eq!(success, "cucu processed");
|
||||
} else {
|
||||
panic!()
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user