GCC Code Coverage Report

Directory: cvmfs/
File: cvmfs/ingestion/task_compress.cc
Date: 2025-08-31 02:39:21
Exec Total Coverage
Lines: 42 42 100.0%
Branches: 44 72 61.1%
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 10401565 void TaskCompress::Process(BlockItem *input_block) {
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 10401565 assert(input_block->chunk_item() != NULL);
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 10395733 zlib::Compressor *compressor = input_block->chunk_item()->GetCompressor();
24 10416019 const int64_t tag = input_block->tag();
25 10410853 const bool flush = input_block->type() == BlockItem::kBlockStop;
26 10416145 unsigned char *input_data = input_block->data();
27 10408819 size_t remaining_in_input = input_block->size();
28
29 10408873 BlockItem *output_block = NULL;
30
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 10408873 if (!tag_map_.Lookup(tag, &output_block)) {
31 // So far unseen chunk, start new stream of compressed blocks
32
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 4499638 output_block = new BlockItem(tag, allocator_);
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 4491520 output_block->SetFileItem(input_block->file_item());
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 4490152 output_block->SetChunkItem(input_block->chunk_item());
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 4491952 output_block->MakeData(kCompressedBlockSize);
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 4507288 tag_map_.Insert(tag, output_block);
37 }
38
39 10453405 bool done = false;
40 do {
41 11682593 unsigned char *output_data = output_block->data() + output_block->size();
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 11670461 assert(!output_block->IsFull());
43 11668607 size_t remaining_in_output = output_block->capacity()
44 11668031 - output_block->size();
45
46
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 11667617 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 11689127 output_block->set_size(output_block->size() + remaining_in_output);
50
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 11681063 if (output_block->IsFull()) {
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 2438456 tubes_out_->Dispatch(output_block);
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 2438636 output_block = new BlockItem(tag, allocator_);
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 2437340 output_block->SetFileItem(input_block->file_item());
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 2436998 output_block->SetChunkItem(input_block->chunk_item());
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 2436530 output_block->MakeData(kCompressedBlockSize);
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 2440778 tag_map_.Insert(tag, output_block);
58 }
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 11674367 } while ((remaining_in_input > 0) || (flush && !done));
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 10445179 if (flush) {
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 4499512 input_block->chunk_item()->ReleaseCompressor();
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 4500538 if (output_block->size() > 0)
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 4499778 tubes_out_->Dispatch(output_block);
66 else
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 4 delete output_block;
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 4495858 tag_map_.Erase(tag);
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 4490440 BlockItem *stop_block = new BlockItem(tag, allocator_);
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 4489270 stop_block->MakeStop();
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 4488172 stop_block->SetFileItem(input_block->file_item());
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 4488910 stop_block->SetChunkItem(input_block->chunk_item());
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 4488910 tubes_out_->Dispatch(stop_block);
75 }
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 10437313 delete input_block;
78 10448743 }
79