Fix deadlock at container finish.
[lightning.git] / tilelib.go
index fbdbe6a8e4a6d10c371f365715bf3af1df56dcb1..6acd8d6a26f9f91a07e30b8803bab04d95d57a7a 100644 (file)
@@ -1,3 +1,7 @@
+// Copyright (C) The Lightning Authors. All rights reserved.
+//
+// SPDX-License-Identifier: AGPL-3.0
+
 package lightning
 
 import (
@@ -7,6 +11,7 @@ import (
        "encoding/gob"
        "fmt"
        "io"
+       "os"
        "regexp"
        "runtime"
        "sort"
@@ -14,6 +19,7 @@ import (
        "sync"
        "sync/atomic"
 
+       "github.com/klauspost/pgzip"
        log "github.com/sirupsen/logrus"
        "golang.org/x/crypto/blake2b"
 )
@@ -60,11 +66,17 @@ type tileLibrary struct {
        variant        [][][blake2b.Size256]byte
        refseqs        map[string]map[string][]tileLibRef
        compactGenomes map[string][]tileVariantID
-       // count [][]int
-       seq      map[[blake2b.Size256]byte][]byte
-       variants int64
+       seq2           map[[2]byte]map[[blake2b.Size256]byte][]byte
+       seq2lock       map[[2]byte]sync.Locker
+       variants       int64
        // if non-nil, write out any tile variants added while tiling
        encoder *gob.Encoder
+       // set Ref flag when writing new variants to encoder
+       encodeRef bool
+
+       onAddTileVariant func(libref tileLibRef, hash [blake2b.Size256]byte, seq []byte) error
+       onAddGenome      func(CompactGenome) error
+       onAddRefseq      func(CompactSequence) error
 
        mtx   sync.RWMutex
        vlock []sync.Locker
@@ -110,12 +122,12 @@ func (tilelib *tileLibrary) loadTileVariants(tvs []TileVariant, variantmap map[t
        for _, tv := range tvs {
                // Assign a new variant ID (unique across all inputs)
                // for each input variant.
-               variantmap[tileLibRef{Tag: tv.Tag, Variant: tv.Variant}] = tilelib.getRef(tv.Tag, tv.Sequence).Variant
+               variantmap[tileLibRef{Tag: tv.Tag, Variant: tv.Variant}] = tilelib.getRef(tv.Tag, tv.Sequence, tv.Ref).Variant
        }
        return nil
 }
 
-func (tilelib *tileLibrary) loadCompactGenomes(cgs []CompactGenome, variantmap map[tileLibRef]tileVariantID, onLoadGenome func(CompactGenome)) error {
+func (tilelib *tileLibrary) loadCompactGenomes(cgs []CompactGenome, variantmap map[tileLibRef]tileVariantID) error {
        log.Debugf("loadCompactGenomes: %d", len(cgs))
        var wg sync.WaitGroup
        errs := make(chan error, 1)
@@ -141,11 +153,18 @@ func (tilelib *tileLibrary) loadCompactGenomes(cgs []CompactGenome, variantmap m
                                        }
                                        return
                                }
-                               log.Tracef("loadCompactGenomes: cg %s tag %d variant %d => %d", cg.Name, tag, variant, newvariant)
+                               // log.Tracef("loadCompactGenomes: cg %s tag %d variant %d => %d", cg.Name, tag, variant, newvariant)
                                cg.Variants[i] = newvariant
                        }
-                       if onLoadGenome != nil {
-                               onLoadGenome(cg)
+                       if tilelib.onAddGenome != nil {
+                               err := tilelib.onAddGenome(cg)
+                               if err != nil {
+                                       select {
+                                       case errs <- err:
+                                       default:
+                                       }
+                                       return
+                               }
                        }
                        if tilelib.encoder != nil {
                                err := tilelib.encoder.Encode(LibraryEntry{
@@ -172,8 +191,9 @@ func (tilelib *tileLibrary) loadCompactGenomes(cgs []CompactGenome, variantmap m
 }
 
 func (tilelib *tileLibrary) loadCompactSequences(cseqs []CompactSequence, variantmap map[tileLibRef]tileVariantID) error {
-       log.Debugf("loadCompactSequences: %d", len(cseqs))
+       log.Infof("loadCompactSequences: %d todo", len(cseqs))
        for _, cseq := range cseqs {
+               log.Infof("loadCompactSequences: checking %s", cseq.Name)
                for _, tseq := range cseq.TileSequences {
                        for i, libref := range tseq {
                                if libref.Variant == 0 {
@@ -196,6 +216,13 @@ func (tilelib *tileLibrary) loadCompactSequences(cseqs []CompactSequence, varian
                                return err
                        }
                }
+               if tilelib.onAddRefseq != nil {
+                       err := tilelib.onAddRefseq(cseq)
+                       if err != nil {
+                               return err
+                       }
+               }
+               log.Infof("loadCompactSequences: checking %s done", cseq.Name)
        }
        tilelib.mtx.Lock()
        defer tilelib.mtx.Unlock()
@@ -205,15 +232,249 @@ func (tilelib *tileLibrary) loadCompactSequences(cseqs []CompactSequence, varian
        for _, cseq := range cseqs {
                tilelib.refseqs[cseq.Name] = cseq.TileSequences
        }
+       log.Info("loadCompactSequences: done")
+       return nil
+}
+
+func allGobFiles(path string) ([]string, error) {
+       var files []string
+       f, err := open(path)
+       if err != nil {
+               return nil, err
+       }
+       defer f.Close()
+       fis, err := f.Readdir(-1)
+       if err != nil {
+               return []string{path}, nil
+       }
+       for _, fi := range fis {
+               if fi.Name() == "." || fi.Name() == ".." {
+                       continue
+               } else if child := path + "/" + fi.Name(); fi.IsDir() {
+                       add, err := allGobFiles(child)
+                       if err != nil {
+                               return nil, err
+                       }
+                       files = append(files, add...)
+               } else if strings.HasSuffix(child, ".gob") || strings.HasSuffix(child, ".gob.gz") {
+                       files = append(files, child)
+               }
+       }
+       return files, nil
+}
+
+func (tilelib *tileLibrary) LoadDir(ctx context.Context, path string) error {
+       log.Infof("LoadDir: walk dir %s", path)
+       files, err := allGobFiles(path)
+       if err != nil {
+               return err
+       }
+       ctx, cancel := context.WithCancel(ctx)
+       defer cancel()
+       var mtx sync.Mutex
+       allcgs := make([][]CompactGenome, len(files))
+       allcseqs := make([][]CompactSequence, len(files))
+       allvariantmap := map[tileLibRef]tileVariantID{}
+       errs := make(chan error, len(files))
+       log.Infof("LoadDir: read %d files", len(files))
+       for fileno, path := range files {
+               fileno, path := fileno, path
+               go func() {
+                       f, err := open(path)
+                       if err != nil {
+                               errs <- err
+                               return
+                       }
+                       defer f.Close()
+                       defer log.Infof("LoadDir: finished reading %s", path)
+
+                       var variantmap = map[tileLibRef]tileVariantID{}
+                       var cgs []CompactGenome
+                       var cseqs []CompactSequence
+                       err = DecodeLibrary(f, strings.HasSuffix(path, ".gz"), func(ent *LibraryEntry) error {
+                               if ctx.Err() != nil {
+                                       return ctx.Err()
+                               }
+                               if len(ent.TagSet) > 0 {
+                                       mtx.Lock()
+                                       if tilelib.taglib == nil || tilelib.taglib.Len() != len(ent.TagSet) {
+                                               // load first set of tags, or
+                                               // report mismatch if 2 sets
+                                               // have different #tags.
+                                               if err := tilelib.loadTagSet(ent.TagSet); err != nil {
+                                                       mtx.Unlock()
+                                                       return err
+                                               }
+                                       }
+                                       mtx.Unlock()
+                               }
+                               for _, tv := range ent.TileVariants {
+                                       variantmap[tileLibRef{Tag: tv.Tag, Variant: tv.Variant}] = tilelib.getRef(tv.Tag, tv.Sequence, tv.Ref).Variant
+                               }
+                               cgs = append(cgs, ent.CompactGenomes...)
+                               cseqs = append(cseqs, ent.CompactSequences...)
+                               return nil
+                       })
+                       allcgs[fileno] = cgs
+                       allcseqs[fileno] = cseqs
+                       mtx.Lock()
+                       defer mtx.Unlock()
+                       for k, v := range variantmap {
+                               allvariantmap[k] = v
+                       }
+                       errs <- err
+               }()
+       }
+       for range files {
+               err := <-errs
+               if err != nil {
+                       return err
+               }
+       }
+
+       log.Info("LoadDir: loadCompactGenomes")
+       var flatcgs []CompactGenome
+       for _, cgs := range allcgs {
+               flatcgs = append(flatcgs, cgs...)
+       }
+       err = tilelib.loadCompactGenomes(flatcgs, allvariantmap)
+       if err != nil {
+               return err
+       }
+
+       log.Info("LoadDir: loadCompactSequences")
+       var flatcseqs []CompactSequence
+       for _, cseqs := range allcseqs {
+               flatcseqs = append(flatcseqs, cseqs...)
+       }
+       err = tilelib.loadCompactSequences(flatcseqs, allvariantmap)
+       if err != nil {
+               return err
+       }
+
+       log.Info("LoadDir done")
+       return nil
+}
+
+func (tilelib *tileLibrary) WriteDir(dir string) error {
+       ntilefiles := 128
+       nfiles := ntilefiles + len(tilelib.refseqs)
+       files := make([]*os.File, nfiles)
+       for i := range files {
+               f, err := os.OpenFile(fmt.Sprintf("%s/library.%04d.gob.gz", dir, i), os.O_CREATE|os.O_WRONLY, 0666)
+               if err != nil {
+                       return err
+               }
+               defer f.Close()
+               files[i] = f
+       }
+       bufws := make([]*bufio.Writer, nfiles)
+       for i := range bufws {
+               bufws[i] = bufio.NewWriterSize(files[i], 1<<26)
+       }
+       zws := make([]*pgzip.Writer, nfiles)
+       for i := range zws {
+               zws[i] = pgzip.NewWriter(bufws[i])
+               defer zws[i].Close()
+       }
+       encoders := make([]*gob.Encoder, nfiles)
+       for i := range encoders {
+               encoders[i] = gob.NewEncoder(zws[i])
+       }
+
+       cgnames := make([]string, 0, len(tilelib.compactGenomes))
+       for name := range tilelib.compactGenomes {
+               cgnames = append(cgnames, name)
+       }
+       sort.Strings(cgnames)
+
+       refnames := make([]string, 0, len(tilelib.refseqs))
+       for name := range tilelib.refseqs {
+               refnames = append(refnames, name)
+       }
+       sort.Strings(refnames)
+
+       log.Infof("WriteDir: writing %d files", nfiles)
+       ctx, cancel := context.WithCancel(context.Background())
+       defer cancel()
+       errs := make(chan error, nfiles)
+       for start := range files {
+               start := start
+               go func() {
+                       err := encoders[start].Encode(LibraryEntry{TagSet: tilelib.taglib.Tags()})
+                       if err != nil {
+                               errs <- err
+                               return
+                       }
+                       if refidx := start - ntilefiles; refidx >= 0 {
+                               // write each ref to its own file
+                               // (they seem to load very slowly)
+                               name := refnames[refidx]
+                               errs <- encoders[start].Encode(LibraryEntry{CompactSequences: []CompactSequence{{
+                                       Name:          name,
+                                       TileSequences: tilelib.refseqs[name],
+                               }}})
+                               return
+                       }
+                       for i := start; i < len(cgnames); i += ntilefiles {
+                               err := encoders[start].Encode(LibraryEntry{CompactGenomes: []CompactGenome{{
+                                       Name:     cgnames[i],
+                                       Variants: tilelib.compactGenomes[cgnames[i]],
+                               }}})
+                               if err != nil {
+                                       errs <- err
+                                       return
+                               }
+                       }
+                       tvs := []TileVariant{}
+                       for tag := start; tag < len(tilelib.variant) && ctx.Err() == nil; tag += ntilefiles {
+                               tvs = tvs[:0]
+                               for idx, hash := range tilelib.variant[tag] {
+                                       tvs = append(tvs, TileVariant{
+                                               Tag:      tagID(tag),
+                                               Variant:  tileVariantID(idx + 1),
+                                               Blake2b:  hash,
+                                               Sequence: tilelib.hashSequence(hash),
+                                       })
+                               }
+                               err := encoders[start].Encode(LibraryEntry{TileVariants: tvs})
+                               if err != nil {
+                                       errs <- err
+                                       return
+                               }
+                       }
+                       errs <- nil
+               }()
+       }
+       for range files {
+               err := <-errs
+               if err != nil {
+                       return err
+               }
+       }
+       log.Info("WriteDir: flushing")
+       for i := range zws {
+               err := zws[i].Close()
+               if err != nil {
+                       return err
+               }
+               err = bufws[i].Flush()
+               if err != nil {
+                       return err
+               }
+               err = files[i].Close()
+               if err != nil {
+                       return err
+               }
+       }
+       log.Info("WriteDir: done")
        return nil
 }
 
 // Load library data from rdr. Tile variants might be renumbered in
 // the process; in that case, genomes variants will be renumbered to
 // match.
-//
-// If onLoadGenome is non-nil, call it on each CompactGenome entry.
-func (tilelib *tileLibrary) LoadGob(ctx context.Context, rdr io.Reader, gz bool, onLoadGenome func(CompactGenome)) error {
+func (tilelib *tileLibrary) LoadGob(ctx context.Context, rdr io.Reader, gz bool) error {
        cgs := []CompactGenome{}
        cseqs := []CompactSequence{}
        variantmap := map[tileLibRef]tileVariantID{}
@@ -237,7 +498,7 @@ func (tilelib *tileLibrary) LoadGob(ctx context.Context, rdr io.Reader, gz bool,
        if ctx.Err() != nil {
                return ctx.Err()
        }
-       err = tilelib.loadCompactGenomes(cgs, variantmap, onLoadGenome)
+       err = tilelib.loadCompactGenomes(cgs, variantmap)
        if err != nil {
                return err
        }
@@ -287,7 +548,7 @@ type importStats struct {
        DroppedOutOfOrderTiles int
 }
 
-func (tilelib *tileLibrary) TileFasta(filelabel string, rdr io.Reader, matchChromosome *regexp.Regexp) (tileSeq, []importStats, error) {
+func (tilelib *tileLibrary) TileFasta(filelabel string, rdr io.Reader, matchChromosome *regexp.Regexp, isRef bool) (tileSeq, []importStats, error) {
        ret := tileSeq{}
        type jobT struct {
                label string
@@ -295,6 +556,7 @@ func (tilelib *tileLibrary) TileFasta(filelabel string, rdr io.Reader, matchChro
        }
        todo := make(chan jobT, 1)
        scanner := bufio.NewScanner(rdr)
+       scanner.Buffer(make([]byte, 256), 1<<29) // 512 MiB, in case fasta does not have line breaks
        go func() {
                defer close(todo)
                var fasta []byte
@@ -371,7 +633,7 @@ func (tilelib *tileLibrary) TileFasta(filelabel string, rdr io.Reader, matchChro
                                } else {
                                        endpos = found[i+1].pos + taglen
                                }
-                               path[i] = tilelib.getRef(f.tagid, job.fasta[startpos:endpos])
+                               path[i] = tilelib.getRef(f.tagid, job.fasta[startpos:endpos], isRef)
                                if countBases(job.fasta[startpos:endpos]) != endpos-startpos {
                                        atomic.AddInt64(&lowquality, 1)
                                }
@@ -408,7 +670,7 @@ func (tilelib *tileLibrary) Len() int64 {
 
 // Return a tileLibRef for a tile with the given tag and sequence,
 // adding the sequence to the library if needed.
-func (tilelib *tileLibrary) getRef(tag tagID, seq []byte) tileLibRef {
+func (tilelib *tileLibrary) getRef(tag tagID, seq []byte, usedByRef bool) tileLibRef {
        dropSeq := false
        if !tilelib.retainNoCalls {
                for _, b := range seq {
@@ -493,37 +755,66 @@ func (tilelib *tileLibrary) getRef(tag tagID, seq []byte) tileLibRef {
        vlock.Unlock()
 
        if tilelib.retainTileSequences && !dropSeq {
-               tilelib.mtx.Lock()
-               if tilelib.seq == nil {
-                       tilelib.seq = map[[blake2b.Size256]byte][]byte{}
+               seqCopy := append([]byte(nil), seq...)
+               if tilelib.seq2 == nil {
+                       tilelib.mtx.Lock()
+                       if tilelib.seq2 == nil {
+                               tilelib.seq2lock = map[[2]byte]sync.Locker{}
+                               m := map[[2]byte]map[[blake2b.Size256]byte][]byte{}
+                               var k [2]byte
+                               for i := 0; i < 256; i++ {
+                                       k[0] = byte(i)
+                                       for j := 0; j < 256; j++ {
+                                               k[1] = byte(j)
+                                               m[k] = map[[blake2b.Size256]byte][]byte{}
+                                               tilelib.seq2lock[k] = &sync.Mutex{}
+                                       }
+                               }
+                               tilelib.seq2 = m
+                       }
+                       tilelib.mtx.Unlock()
                }
-               tilelib.seq[seqhash] = append([]byte(nil), seq...)
-               tilelib.mtx.Unlock()
+               var k [2]byte
+               copy(k[:], seqhash[:])
+               locker := tilelib.seq2lock[k]
+               locker.Lock()
+               tilelib.seq2[k][seqhash] = seqCopy
+               locker.Unlock()
        }
 
+       saveSeq := seq
+       if dropSeq {
+               // Save the hash, but not the sequence
+               saveSeq = nil
+       }
        if tilelib.encoder != nil {
-               saveSeq := seq
-               if dropSeq {
-                       // Save the hash, but not the sequence
-                       saveSeq = nil
-               }
                tilelib.encoder.Encode(LibraryEntry{
                        TileVariants: []TileVariant{{
                                Tag:      tag,
+                               Ref:      usedByRef,
                                Variant:  variant,
                                Blake2b:  seqhash,
                                Sequence: saveSeq,
                        }},
                })
        }
+       if tilelib.onAddTileVariant != nil {
+               tilelib.onAddTileVariant(tileLibRef{tag, variant}, seqhash, saveSeq)
+       }
        return tileLibRef{Tag: tag, Variant: variant}
 }
 
+func (tilelib *tileLibrary) hashSequence(hash [blake2b.Size256]byte) []byte {
+       var partition [2]byte
+       copy(partition[:], hash[:])
+       return tilelib.seq2[partition][hash]
+}
+
 func (tilelib *tileLibrary) TileVariantSequence(libref tileLibRef) []byte {
        if libref.Variant == 0 || len(tilelib.variant) <= int(libref.Tag) || len(tilelib.variant[libref.Tag]) < int(libref.Variant) {
                return nil
        }
-       return tilelib.seq[tilelib.variant[libref.Tag][libref.Variant-1]]
+       return tilelib.hashSequence(tilelib.variant[libref.Tag][libref.Variant-1])
 }
 
 // Tidy deletes unreferenced tile variants and renumbers variants so
@@ -594,18 +885,30 @@ func (tilelib *tileLibrary) Tidy() {
        // Apply remap to genomes and reference sequences, so they
        // refer to the same tile variants using the changed IDs.
        log.Print("Tidy: apply remap")
+       var wg sync.WaitGroup
        for _, cg := range tilelib.compactGenomes {
-               for idx, variant := range cg {
-                       cg[idx] = remap[tagID(idx/2)][variant]
-               }
+               cg := cg
+               wg.Add(1)
+               go func() {
+                       defer wg.Done()
+                       for idx, variant := range cg {
+                               cg[idx] = remap[tagID(idx/2)][variant]
+                       }
+               }()
        }
        for _, refcs := range tilelib.refseqs {
                for _, refseq := range refcs {
-                       for i, tv := range refseq {
-                               refseq[i].Variant = remap[tv.Tag][tv.Variant]
-                       }
+                       refseq := refseq
+                       wg.Add(1)
+                       go func() {
+                               defer wg.Done()
+                               for i, tv := range refseq {
+                                       refseq[i].Variant = remap[tv.Tag][tv.Variant]
+                               }
+                       }()
                }
        }
+       wg.Wait()
        log.Print("Tidy: done")
 }