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Use empty structs instead of bools in changes.

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This commit is contained in:
Sascha L. Teichmann 2016-05-08 23:20:51 +02:00
parent da309c73d8
commit 4c24a01607
1 changed files with 5 additions and 5 deletions
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10
cmd/mtwebmapper/tilesupdater.go
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@ -29,7 +29,7 @@ type baseTilesUpdates interface {
} }
type tileUpdater struct { type tileUpdater struct {
changes map[xz]bool changes map[xz]struct{}
btu baseTilesUpdates btu baseTilesUpdates
mapDir string mapDir string
redisAddress string redisAddress string
@ -89,7 +89,7 @@ func newTileUpdater(
mapDir: mapDir, mapDir: mapDir,
redisAddress: redisAddress, redisAddress: redisAddress,
ips: ips, ips: ips,
changes: map[xz]bool{}, changes: map[xz]struct{}{},
colors: colors, colors: colors,
bg: bg, bg: bg,
yMin: int16(yMin), yMin: int16(yMin),
@ -146,7 +146,7 @@ func (tu *tileUpdater) ServeHTTP(rw http.ResponseWriter, r *http.Request) {
if len(newChanges) > 0 { if len(newChanges) > 0 {
tu.cond.L.Lock() tu.cond.L.Lock()
for _, c := range newChanges { for _, c := range newChanges {
tu.changes[c.quantize()] = true tu.changes[c.quantize()] = struct{}{}
} }
tu.cond.L.Unlock() tu.cond.L.Unlock()
tu.cond.Signal() tu.cond.Signal()
@ -155,7 +155,7 @@ func (tu *tileUpdater) ServeHTTP(rw http.ResponseWriter, r *http.Request) {
rw.WriteHeader(http.StatusOK) rw.WriteHeader(http.StatusOK)
} }
func extractChanges(changes map[xz]bool) []xzc { func extractChanges(changes map[xz]struct{}) []xzc {
chs := make([]xzc, len(changes)) chs := make([]xzc, len(changes))
var i int var i int
for ch := range changes { for ch := range changes {
@ -185,7 +185,7 @@ func (tu *tileUpdater) doUpdates() {
tu.cond.Wait() tu.cond.Wait()
} }
changes := extractChanges(tu.changes) changes := extractChanges(tu.changes)
tu.changes = map[xz]bool{} tu.changes = map[xz]struct{}{}
tu.cond.L.Unlock() tu.cond.L.Unlock()
baseDir := filepath.Join(tu.mapDir, "8") baseDir := filepath.Join(tu.mapDir, "8")