96 lines
2.8 KiB
Go
96 lines
2.8 KiB
Go
package main
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import (
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"flag"
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"image"
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"log"
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"net"
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"os"
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"runtime/pprof"
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"time"
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"github.com/SpeckiJ/Hochwasser/pixelflut"
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"github.com/SpeckiJ/Hochwasser/rpc"
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)
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var err error
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var cpuprofile = flag.String("cpuprofile", "", "Destination file for CPU Profile")
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var imgPath = flag.String("image", "", "Absolute Path to image")
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var x = flag.Int("x", 0, "Offset of posted image from left border")
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var y = flag.Int("y", 0, "Offset of posted image from top border")
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var connections = flag.Int("connections", 4, "Number of simultaneous connections. Each connection posts a subimage")
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var address = flag.String("host", "127.0.0.1:1337", "Server address")
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var runtime = flag.String("runtime", "60s", "exit after timeout")
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var shuffle = flag.Bool("shuffle", false, "pixel send ordering")
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var fetchImgPath = flag.String("fetch-image", "", "path to save the fetched pixel state to")
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var ránAddr = flag.String("rán", "", "enable rpc server to distribute jobs, listening on the given address/port")
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var hevringAddr = flag.String("hevring", "", "connect to rán rpc server at given address")
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func main() {
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flag.Parse()
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// Start cpu profiling if wanted
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if *cpuprofile != "" {
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f, err := os.Create(*cpuprofile)
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if err != nil {
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log.Fatal(err)
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}
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defer f.Close()
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pprof.StartCPUProfile(f)
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defer pprof.StopCPUProfile()
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}
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if *imgPath != "" {
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offset := image.Pt(*x, *y)
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img := readImage(*imgPath)
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// check connectivity by opening one test connection
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conn, err := net.Dial("tcp", *address)
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if err != nil {
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log.Fatal(err)
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}
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conn.Close()
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if *ránAddr != "" {
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// run RPC server, tasking clients to flut
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r := rpc.SummonRán(*ránAddr)
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r.SetTask(img, offset, *address, *connections) // @incomplete
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select {} // block forever
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} else {
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// local 🌊🌊🌊🌊🌊🌊🌊🌊🌊🌊🌊🌊🌊🌊🌊
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pixelflut.Flut(img, offset, *shuffle, *address, *connections)
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// fetch server state and save to file
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// @incomplete: make this available also when not fluting?
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if *fetchImgPath != "" {
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fetchedImg := pixelflut.FetchImage(img.Bounds().Add(offset), *address, 1)
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*connections -= 1
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defer writeImage(*fetchImgPath, fetchedImg)
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}
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// Terminate after timeout to save resources
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timer, err := time.ParseDuration(*runtime)
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if err != nil {
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log.Fatal("Invalid runtime specified: " + err.Error())
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}
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time.Sleep(timer)
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}
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} else if *hevringAddr != "" {
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// connect to RPC server and execute their tasks
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rpc.ConnectHevring(*hevringAddr)
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select {} // block forever
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} else {
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log.Fatal("must specify -image or -hevring")
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}
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}
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/**
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* @incomplete: clean exit
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* to ensure cleanup is done (rpc disconnects, cpuprof, image writing, ...),
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* we should catch signals and force-exit all goroutines (bomb, rpc). via channel?
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*/
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