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/** |
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* This file is part of the CernVM File System. |
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*/ |
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#ifndef CVMFS_INGESTION_PIPELINE_H_ |
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#define CVMFS_INGESTION_PIPELINE_H_ |
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#include <string> |
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#include "compression/compression.h" |
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#include "crypto/hash.h" |
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#include "ingestion/item.h" |
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#include "ingestion/item_mem.h" |
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#include "ingestion/task.h" |
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#include "upload_spooler_result.h" |
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#include "util/concurrency.h" |
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#include "util/tube.h" |
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namespace upload { |
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class AbstractUploader; |
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struct SpoolerDefinition; |
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} |
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class IngestionPipeline : public Observable<upload::SpoolerResult> { |
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public: |
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explicit IngestionPipeline( |
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upload::AbstractUploader *uploader, |
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const upload::SpoolerDefinition &spooler_definition); |
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~IngestionPipeline(); |
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void Spawn(); |
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void Process(IngestionSource* source, bool allow_chunking, |
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shash::Suffix hash_suffix = shash::kSuffixNone); |
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void WaitFor(); |
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void OnFileProcessed(const upload::SpoolerResult &spooler_result); |
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private: |
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static const uint64_t kMaxPipelineMem; // 1G |
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static const unsigned kMaxFilesInFlight = 8000; |
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static const unsigned kNforkRegister = 1; |
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static const unsigned kNforkWrite = 1; |
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static const unsigned kNforkHash = 2; |
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static const unsigned kNforkCompress = 4; |
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static const unsigned kNforkChunk = 1; |
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static const unsigned kNforkRead = 8; |
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const zlib::Algorithms compression_algorithm_; |
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const shash::Algorithms hash_algorithm_; |
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const bool generate_legacy_bulk_chunks_; |
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const bool chunking_enabled_; |
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const size_t minimal_chunk_size_; |
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const size_t average_chunk_size_; |
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const size_t maximal_chunk_size_; |
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bool spawned_; |
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upload::AbstractUploader *uploader_; |
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// TODO(jblomer): a semaphore would be faster! |
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// We need to have two in-flight counters: the pre-counter decreases |
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// before the final NotifyListeners() call, so that the callback can schedule |
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// a new job into the pipeline. This happens when finished child catalogs |
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// trigger uploading the parent catalog. |
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// The pre-counter sets the kMaxFilesInFlight limit. |
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Tube<FileItem> tube_ctr_inflight_pre_; |
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// The post counter is set after the final callback. It is used to wait |
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// for the pipeline to finish. |
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Tube<FileItem> tube_ctr_inflight_post_; |
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Tube<FileItem> tube_input_; |
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TubeConsumerGroup<FileItem> tasks_read_; |
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TubeGroup<BlockItem> tubes_chunk_; |
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TubeConsumerGroup<BlockItem> tasks_chunk_; |
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TubeGroup<BlockItem> tubes_compress_; |
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TubeConsumerGroup<BlockItem> tasks_compress_; |
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TubeGroup<BlockItem> tubes_hash_; |
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TubeConsumerGroup<BlockItem> tasks_hash_; |
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TubeGroup<BlockItem> tubes_write_; |
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TubeConsumerGroup<BlockItem> tasks_write_; |
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TubeGroup<FileItem> tubes_register_; |
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TubeConsumerGroup<FileItem> tasks_register_; |
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ItemAllocator item_allocator_; |
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}; // class IngestionPipeline |
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struct ScrubbingResult { |
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ScrubbingResult() { } |
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ScrubbingResult(const std::string &p, const shash::Any &h) |
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: path(p), hash(h) { } |
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std::string path; |
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shash::Any hash; |
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}; |
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class TaskScrubbingCallback |
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: public TubeConsumer<BlockItem> |
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, public Observable<ScrubbingResult> |
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{ |
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public: |
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TaskScrubbingCallback(Tube<BlockItem> *tube_in, |
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Tube<FileItem> *tube_counter) |
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: TubeConsumer<BlockItem>(tube_in) |
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, tube_counter_(tube_counter) |
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{ } |
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protected: |
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virtual void Process(BlockItem *block_item); |
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private: |
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Tube<FileItem> *tube_counter_; |
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}; |
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class ScrubbingPipeline : public Observable<ScrubbingResult> { |
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public: |
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ScrubbingPipeline(); |
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~ScrubbingPipeline(); |
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void Spawn(); |
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void Process(IngestionSource* source, |
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shash::Algorithms hash_algorithm, |
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shash::Suffix hash_suffix); |
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void WaitFor(); |
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void OnFileProcessed(const ScrubbingResult &scrubbing_result); |
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private: |
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static const uint64_t kMemLowWatermark = 384 * 1024 * 1024; |
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static const uint64_t kMemHighWatermark = 512 * 1024 * 1024; |
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static const unsigned kMaxFilesInFlight = 8000; |
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static const unsigned kNforkScrubbingCallback = 1; |
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static const unsigned kNforkHash = 2; |
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static const unsigned kNforkChunk = 1; |
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static const unsigned kNforkRead = 8; |
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bool spawned_; |
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Tube<FileItem> tube_input_; |
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// TODO(jblomer): a semaphore would be faster! |
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Tube<FileItem> tube_counter_; |
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TubeConsumerGroup<FileItem> tasks_read_; |
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TubeGroup<BlockItem> tubes_chunk_; |
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TubeConsumerGroup<BlockItem> tasks_chunk_; |
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TubeGroup<BlockItem> tubes_hash_; |
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TubeConsumerGroup<BlockItem> tasks_hash_; |
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TubeGroup<BlockItem> tubes_scrubbing_callback_; |
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TubeConsumerGroup<BlockItem> tasks_scrubbing_callback_; |
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ItemAllocator item_allocator_; |
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}; |
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#endif // CVMFS_INGESTION_PIPELINE_H_ |
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