GCC Code Coverage Report

Directory: cvmfs/
File: cvmfs/ingestion/task_compress.cc
Date: 2026-04-26 02:35:59
Exec Total Coverage
Lines: 41 42 97.6%
Branches: 42 72 58.3%
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 22610198 void TaskCompress::Process(BlockItem *input_block) {
21
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 22610198 assert(input_block->chunk_item() != NULL);
22
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 22618193 zlib::Compressor *compressor = input_block->chunk_item()->GetCompressor();
24 22635041 const int64_t tag = input_block->tag();
25 22640345 const bool flush = input_block->type() == BlockItem::kBlockStop;
26 22637693 unsigned char *input_data = input_block->data();
27 22626695 size_t remaining_in_input = input_block->size();
28
29 22628333 BlockItem *output_block = NULL;
30
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 22628333 if (!tag_map_.Lookup(tag, &output_block)) {
31 // So far unseen chunk, start new stream of compressed blocks
32
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 9751671 output_block = new BlockItem(tag, allocator_);
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 9733341 output_block->SetFileItem(input_block->file_item());
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 9733965 output_block->SetChunkItem(input_block->chunk_item());
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 9737241 output_block->MakeData(kCompressedBlockSize);
36
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 9764463 tag_map_.Insert(tag, output_block);
37 }
38
39 22656920 bool done = false;
40 do {
41 25321262 unsigned char *output_data = output_block->data() + output_block->size();
42
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 25322588 assert(!output_block->IsFull());
43 25319390 size_t remaining_in_output = output_block->capacity()
44 25318766 - output_block->size();
45
46
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 25308743 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 25319039 output_block->set_size(output_block->size() + remaining_in_output);
50
51
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 25318181 if (output_block->IsFull()) {
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 5286945 tubes_out_->Dispatch(output_block);
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 5288076 output_block = new BlockItem(tag, allocator_);
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 5286906 output_block->SetFileItem(input_block->file_item());
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 5286360 output_block->SetChunkItem(input_block->chunk_item());
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 5285229 output_block->MakeData(kCompressedBlockSize);
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 5288973 tag_map_.Insert(tag, output_block);
58 }
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 25291310 } while ((remaining_in_input > 0) || (flush && !done));
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 22626968 if (flush) {
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 9747576 input_block->chunk_item()->ReleaseCompressor();
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 9758106 if (output_block->size() > 0)
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 9758532 tubes_out_->Dispatch(output_block);
66 else
67 ✗ delete output_block;
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 9755220 tag_map_.Erase(tag);
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 9745392 BlockItem *stop_block = new BlockItem(tag, allocator_);
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 9746679 stop_block->MakeStop();
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 9748434 stop_block->SetFileItem(input_block->file_item());
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 9747732 stop_block->SetChunkItem(input_block->chunk_item());
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 9744144 tubes_out_->Dispatch(stop_block);
75 }
76
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 22635002 delete input_block;
78 22656452 }
79