80 lines
3.2 KiB
Rust
80 lines
3.2 KiB
Rust
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// Copyright (C) 2020 Éloïs SANCHEZ.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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use crate::*;
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pub(super) fn apply_block_blocks_chunk<B: Backend>(
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block: &DubpBlockV10,
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gva_db: &mut GvaV1DbTxRw<B::Col>,
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) -> KvResult<()> {
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let block_number = block.number().0;
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gva_db.current_blocks_chunk.upsert(
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U32BE(block_number),
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GvaBlockDbV1(DubpBlock::V10(block.clone())),
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);
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if block_number % 1_000 == 999 {
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let current_chunk: Vec<GvaBlockDbV1> = gva_db
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.current_blocks_chunk
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.iter(.., |it| it.values().collect::<Result<Vec<_>, _>>())?;
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let current_chunk_bin =
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bincode::serialize(¤t_chunk).map_err(|e| KvError::DeserError(e.into()))?;
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let chunk_hash = Hash::compute_blake3(current_chunk_bin.as_ref());
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let compressed_chunk = lz4_flex::compress_prepend_size(current_chunk_bin.as_ref());
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let chunk_index = U32BE(block_number / 1_000);
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gva_db
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.blocks_chunk_hash
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.upsert(chunk_index, HashDb(chunk_hash));
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gva_db
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.compressed_blocks_chunk
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.upsert(chunk_index, compressed_chunk);
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}
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Ok(())
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}
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pub(super) fn revert_block_blocks_chunk<B: Backend>(
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block: &DubpBlockV10,
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gva_db: &mut GvaV1DbTxRw<B::Col>,
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) -> KvResult<()> {
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let block_number = block.number().0;
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if block_number % 1_000 == 999 {
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// Uncompress las compressed chunk and replace it in current chunk
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let chunk_index = U32BE(block_number / 1_000);
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if let Some(compressed_chunk) = gva_db.compressed_blocks_chunk.get(&chunk_index)? {
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gva_db.blocks_chunk_hash.remove(chunk_index);
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gva_db.compressed_blocks_chunk.remove(chunk_index);
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let current_chunk_bin = lz4_flex::decompress_size_prepended(compressed_chunk.as_ref())
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.map_err(|e| KvError::Custom(format!("{:?}", e).into()))?;
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let current_chunk: Vec<GvaBlockDbV1> = bincode::deserialize(current_chunk_bin.as_ref())
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.map_err(|e| KvError::DeserError(e.into()))?;
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let current_chunk_begin = block_number - 999;
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for (i, block) in current_chunk.into_iter().enumerate() {
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gva_db
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.current_blocks_chunk
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.upsert(U32BE(current_chunk_begin + i as u32), block);
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}
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} else {
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return Err(KvError::DbCorrupted(
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"Not found last compressed chunk".to_owned(),
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));
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}
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} else {
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gva_db.current_blocks_chunk.remove(U32BE(block_number));
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}
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Ok(())
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}
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