GCC Code Coverage Report

Directory: cvmfs/
File: cvmfs/ingestion/task_compress.cc
Date: 2025-11-09 02:35:23
Exec Total Coverage
Lines: 42 42 100.0%
Branches: 43 72 59.7%
Line Branch Exec Source
1 /**
2 * This file is part of the CernVM File System.
3 */
4
5
6 #include "task_compress.h"
7
8 #include <cstdlib>
9
10 #include "compression/compression.h"
11 #include "util/logging.h"
12 #include "util/smalloc.h"
13
14
15 /**
16 * The data payload of the blocks is replaced by their compressed counterparts.
17 * The block tags stay the same.
18 * TODO(jblomer): avoid memory copy with EchoCompressor
19 */
20 16737135 void TaskCompress::Process(BlockItem *input_block) {
21
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 16737135 assert(input_block->chunk_item() != NULL);
22
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 16731219 zlib::Compressor *compressor = input_block->chunk_item()->GetCompressor();
24 16783651 const int64_t tag = input_block->tag();
25 16772776 const bool flush = input_block->type() == BlockItem::kBlockStop;
26 16778866 unsigned char *input_data = input_block->data();
27 16774864 size_t remaining_in_input = input_block->size();
28
29 16781244 BlockItem *output_block = NULL;
30
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 16781244 if (!tag_map_.Lookup(tag, &output_block)) {
31 // So far unseen chunk, start new stream of compressed blocks
32
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 7246239 output_block = new BlockItem(tag, allocator_);
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 7230724 output_block->SetFileItem(input_block->file_item());
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 7227795 output_block->SetChunkItem(input_block->chunk_item());
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 7231420 output_block->MakeData(kCompressedBlockSize);
36
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 7259144 tag_map_.Insert(tag, output_block);
37 }
38
39 16850293 bool done = false;
40 do {
41 18828792 unsigned char *output_data = output_block->data() + output_block->size();
42
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 18810319 assert(!output_block->IsFull());
43 18804693 size_t remaining_in_output = output_block->capacity()
44 18803736 - output_block->size();
45
46
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 18800604 done = compressor->Deflate(flush, &input_data, &remaining_in_input,
47 &output_data, &remaining_in_output);
48 // remaining_in_output is now number of consumed bytes
49 18828357 output_block->set_size(output_block->size() + remaining_in_output);
50
51
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 18817279 if (output_block->IsFull()) {
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 3929765 tubes_out_->Dispatch(output_block);
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 3929823 output_block = new BlockItem(tag, allocator_);
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 3927474 output_block->SetFileItem(input_block->file_item());
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 3926807 output_block->SetChunkItem(input_block->chunk_item());
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 3926865 output_block->MakeData(kCompressedBlockSize);
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 3932172 tag_map_.Insert(tag, output_block);
58 }
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 18801126 } while ((remaining_in_input > 0) || (flush && !done));
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 16822627 if (flush) {
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 7247138 input_block->chunk_item()->ReleaseCompressor();
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 7249690 if (output_block->size() > 0)
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 7248278 tubes_out_->Dispatch(output_block);
66 else
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 20 delete output_block;
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 7240062 tag_map_.Erase(tag);
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 7232609 BlockItem *stop_block = new BlockItem(tag, allocator_);
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 7228143 stop_block->MakeStop();
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 7228230 stop_block->SetFileItem(input_block->file_item());
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 7228172 stop_block->SetChunkItem(input_block->chunk_item());
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 7227447 tubes_out_->Dispatch(stop_block);
75 }
76
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 16809258 delete input_block;
78 16834256 }
79