GCC Code Coverage Report

Directory: cvmfs/
File: cvmfs/ingestion/task_compress.cc
Date: 2026-05-24 02:35:55
Exec Total Coverage
Lines: 41 42 97.6%
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 5776567 void TaskCompress::Process(BlockItem *input_block) {
21
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 5776567 assert(input_block->chunk_item() != NULL);
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 5772397 zlib::Compressor *compressor = input_block->chunk_item()->GetCompressor();
24 5790797 const int64_t tag = input_block->tag();
25 5782367 const bool flush = input_block->type() == BlockItem::kBlockStop;
26 5785657 unsigned char *input_data = input_block->data();
27 5784367 size_t remaining_in_input = input_block->size();
28
29 5787767 BlockItem *output_block = NULL;
30
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 5787767 if (!tag_map_.Lookup(tag, &output_block)) {
31 // So far unseen chunk, start new stream of compressed blocks
32
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 2496554 output_block = new BlockItem(tag, allocator_);
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 2493044 output_block->SetFileItem(input_block->file_item());
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 2492524 output_block->SetChunkItem(input_block->chunk_item());
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 2491824 output_block->MakeData(kCompressedBlockSize);
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 2504524 tag_map_.Insert(tag, output_block);
37 }
38
39 5813857 bool done = false;
40 do {
41 6495624 unsigned char *output_data = output_block->data() + output_block->size();
42
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 6487864 assert(!output_block->IsFull());
43 6486764 size_t remaining_in_output = output_block->capacity()
44 6486074 - output_block->size();
45
46
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 6486814 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 6500264 output_block->set_size(output_block->size() + remaining_in_output);
50
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 6494264 if (output_block->IsFull()) {
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 1355285 tubes_out_->Dispatch(output_block);
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 1355235 output_block = new BlockItem(tag, allocator_);
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 1354415 output_block->SetFileItem(input_block->file_item());
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 1354275 output_block->SetChunkItem(input_block->chunk_item());
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 1354255 output_block->MakeData(kCompressedBlockSize);
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 1356245 tag_map_.Insert(tag, output_block);
58 }
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 6491774 } while ((remaining_in_input > 0) || (flush && !done));
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 5810007 if (flush) {
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 2501504 input_block->chunk_item()->ReleaseCompressor();
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 2498854 if (output_block->size() > 0)
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 2498521 tubes_out_->Dispatch(output_block);
66 else
67 ✗ delete output_block;
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 2497334 tag_map_.Erase(tag);
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 2497004 BlockItem *stop_block = new BlockItem(tag, allocator_);
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 2494574 stop_block->MakeStop();
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 2493854 stop_block->SetFileItem(input_block->file_item());
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 2493394 stop_block->SetChunkItem(input_block->chunk_item());
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 2493094 tubes_out_->Dispatch(stop_block);
75 }
76
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 5801637 delete input_block;
78 5814537 }
79