140 lines
2.8 KiB
Go
140 lines
2.8 KiB
Go
package reader
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import (
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"goposm/cache"
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"goposm/element"
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"goposm/mapping"
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"goposm/parser/pbf"
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"goposm/stats"
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"os"
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"runtime"
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"strconv"
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"strings"
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"sync"
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)
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var skipCoords, skipNodes, skipWays bool
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var nParser, nWays, nRels, nNodes, nCoords int64
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func init() {
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if os.Getenv("GOPOSM_SKIP_COORDS") != "" {
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skipCoords = true
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}
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if os.Getenv("GOPOSM_SKIP_NODES") != "" {
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skipNodes = true
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}
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if os.Getenv("GOPOSM_SKIP_WAYS") != "" {
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skipWays = true
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}
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nParser = int64(runtime.NumCPU())
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nWays = int64(runtime.NumCPU())
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nRels = int64(runtime.NumCPU())
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nNodes = int64(runtime.NumCPU())
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nCoords = int64(runtime.NumCPU())
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if procConf := os.Getenv("GOPOSM_READ_PROCS"); procConf != "" {
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parts := strings.Split(procConf, ":")
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nParser, _ = strconv.ParseInt(parts[0], 10, 32)
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nRels, _ = strconv.ParseInt(parts[1], 10, 32)
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nWays, _ = strconv.ParseInt(parts[2], 10, 32)
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nNodes, _ = strconv.ParseInt(parts[3], 10, 32)
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nCoords, _ = strconv.ParseInt(parts[3], 10, 32)
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}
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}
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func ReadPbf(cache *cache.OSMCache, progress *stats.Statistics, tagmapping *mapping.Mapping, filename string) {
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nodes := make(chan []element.Node, 4)
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coords := make(chan []element.Node, 4)
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ways := make(chan []element.Way, 4)
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relations := make(chan []element.Relation, 4)
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blocks := pbf.Blocks(filename)
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waitParser := sync.WaitGroup{}
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for i := 0; int64(i) < nParser; i++ {
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waitParser.Add(1)
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go func() {
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for block := range blocks {
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block.Parse(
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coords,
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nodes,
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ways,
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relations,
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)
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}
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waitParser.Done()
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}()
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}
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waitWriter := sync.WaitGroup{}
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for i := 0; int64(i) < nWays; i++ {
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waitWriter.Add(1)
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go func() {
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m := tagmapping.WayTagFilter()
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for ws := range ways {
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if skipWays {
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continue
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}
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for i, _ := range ws {
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m.Filter(&ws[i].Tags)
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}
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cache.Ways.PutWays(ws)
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progress.AddWays(len(ws))
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}
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waitWriter.Done()
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}()
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}
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for i := 0; int64(i) < nRels; i++ {
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waitWriter.Add(1)
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go func() {
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m := tagmapping.RelationTagFilter()
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for rels := range relations {
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for i, _ := range rels {
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m.Filter(&rels[i].Tags)
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}
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cache.Relations.PutRelations(rels)
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progress.AddRelations(len(rels))
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}
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waitWriter.Done()
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}()
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}
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for i := 0; int64(i) < nCoords; i++ {
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waitWriter.Add(1)
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go func() {
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for nds := range coords {
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if skipCoords {
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continue
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}
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cache.Coords.PutCoords(nds)
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progress.AddCoords(len(nds))
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}
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waitWriter.Done()
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}()
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}
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for i := 0; int64(i) < nNodes; i++ {
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waitWriter.Add(1)
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go func() {
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m := tagmapping.NodeTagFilter()
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for nds := range nodes {
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for i, _ := range nds {
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m.Filter(&nds[i].Tags)
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}
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cache.Nodes.PutNodes(nds)
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progress.AddNodes(len(nds))
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}
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waitWriter.Done()
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}()
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}
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waitParser.Wait()
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close(coords)
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close(nodes)
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close(ways)
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close(relations)
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waitWriter.Wait()
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}
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