forked from MTSR/mapserver
61 lines
1.2 KiB
Go
61 lines
1.2 KiB
Go
package tilerendererjob
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import (
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"mapserver/app"
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"mapserver/coords"
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"mapserver/settings"
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"time"
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"github.com/sirupsen/logrus"
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)
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type IncrementalRenderEvent struct {
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LastMtime int64 `json:"lastmtime"`
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}
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func incrementalRender(ctx *app.App, jobs chan *coords.TileCoords) {
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lastMtime := ctx.Settings.GetInt64(settings.SETTING_LAST_MTIME, 0)
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fields := logrus.Fields{
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"LastMtime": lastMtime,
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}
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logrus.WithFields(fields).Info("Starting incremental rendering job")
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for true {
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start := time.Now()
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result, err := ctx.BlockAccessor.FindMapBlocksByMtime(lastMtime, ctx.Config.RenderingFetchLimit, ctx.Config.Layers)
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if err != nil {
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panic(err)
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}
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if len(result.List) == 0 && !result.HasMore {
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time.Sleep(5 * time.Second)
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continue
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}
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lastMtime = result.LastMtime
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ctx.Settings.SetInt64(settings.SETTING_LAST_MTIME, lastMtime)
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tiles := renderMapblocks(ctx, jobs, result.List)
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t := time.Now()
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elapsed := t.Sub(start)
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ev := IncrementalRenderEvent{
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LastMtime: result.LastMtime,
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}
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ctx.WebEventbus.Emit("incremental-render-progress", &ev)
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fields := logrus.Fields{
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"mapblocks": len(result.List),
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"tiles": tiles,
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"elapsed": elapsed,
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}
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logrus.WithFields(fields).Info("incremental rendering")
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}
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}
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