GCC Code Coverage Report

Directory: cvmfs/
File: cvmfs/ingestion/task_compress.cc
Date: 2025-04-20 02:34:28
Exec Total Coverage
Lines: 40 41 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 579026 void TaskCompress::Process(BlockItem *input_block) {
21
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 579026 assert(input_block->chunk_item() != NULL);
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 578701 zlib::Compressor *compressor = input_block->chunk_item()->GetCompressor();
24 579463 const int64_t tag = input_block->tag();
25 578857 const bool flush = input_block->type() == BlockItem::kBlockStop;
26 578984 unsigned char *input_data = input_block->data();
27 580229 size_t remaining_in_input = input_block->size();
28
29 580519 BlockItem *output_block = NULL;
30
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 580519 if (!tag_map_.Lookup(tag, &output_block)) {
31 // So far unseen chunk, start new stream of compressed blocks
32
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 249676 output_block = new BlockItem(tag, allocator_);
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 249462 output_block->SetFileItem(input_block->file_item());
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 249407 output_block->SetChunkItem(input_block->chunk_item());
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 249375 output_block->MakeData(kCompressedBlockSize);
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 250415 tag_map_.Insert(tag, output_block);
37 }
38
39 581270 bool done = false;
40 do {
41 649398 unsigned char *output_data = output_block->data() + output_block->size();
42
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 648767 assert(!output_block->IsFull());
43 size_t remaining_in_output =
44 648724 output_block->capacity() - output_block->size();
45
46
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 648695 done = compressor->Deflate(flush,
47 &input_data, &remaining_in_input, &output_data, &remaining_in_output);
48 // remaining_in_output is now number of consumed bytes
49 649314 output_block->set_size(output_block->size() + remaining_in_output);
50
51
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 648795 if (output_block->IsFull()) {
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 135487 tubes_out_->Dispatch(output_block);
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 135545 output_block = new BlockItem(tag, allocator_);
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 135463 output_block->SetFileItem(input_block->file_item());
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 135449 output_block->SetChunkItem(input_block->chunk_item());
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 135453 output_block->MakeData(kCompressedBlockSize);
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 135626 tag_map_.Insert(tag, output_block);
58 }
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 648591 } while ((remaining_in_input > 0) || (flush && !done));
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 580463 if (flush) {
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 249974 input_block->chunk_item()->ReleaseCompressor();
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 249848 if (output_block->size() > 0)
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 249820 tubes_out_->Dispatch(output_block);
66 else
67 ✗ delete output_block;
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 249843 tag_map_.Erase(tag);
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 249619 BlockItem *stop_block = new BlockItem(tag, allocator_);
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 249413 stop_block->MakeStop();
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 249299 stop_block->SetFileItem(input_block->file_item());
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 249298 stop_block->SetChunkItem(input_block->chunk_item());
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 249314 tubes_out_->Dispatch(stop_block);
75 }
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 580162 delete input_block;
78 580952 }
79