66 lines
1.4 KiB
Go
66 lines
1.4 KiB
Go
package rpc
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import (
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"fmt"
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"image"
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"log"
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"net"
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"net/rpc"
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"time"
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"github.com/SpeckiJ/Hochwasser/pixelflut"
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)
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func ConnectHevring(ránAddress string) {
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rpc.Register(new(Hevring))
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fmt.Printf("[hevring] greeting Rán at %s\n", ránAddress)
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conn, err := net.Dial("tcp", ránAddress)
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if err != nil {
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log.Fatal(err)
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}
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go rpc.ServeConn(conn)
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fmt.Printf("[hevring] awaiting task from Rán\n")
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}
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type Hevring struct{}
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type FlutTask struct {
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Address string
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MaxConns int
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Img *image.NRGBA // bug :imageType: should be image.Image, but can't be serialized. do conversion in task creation?
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Offset image.Point
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Shuffle bool
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}
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type FlutAck struct{ Ok bool }
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func (h *Hevring) Flut(task FlutTask, reply *FlutAck) error {
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// @incomplete: async errorhandling
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// @incomplete: stop old task if new task is received
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fmt.Printf("[hevring] Rán gave us /w o r k/! %v\n", task)
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pixelflut.Flut(task.Img, task.Offset, task.Shuffle, task.Address, task.MaxConns)
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reply.Ok = true
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return nil
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}
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func (h *Hevring) Status(x int, reply *FlutAck) error {
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// @incomplete: provide performance metrics
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reply.Ok = true
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return nil
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}
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func (h *Hevring) Stop(x int, reply *FlutAck) error {
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reply.Ok = true
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return nil
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}
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func (h *Hevring) Die(x int, reply *FlutAck) error {
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go func() { // @cleanup: hacky
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time.Sleep(100 * time.Millisecond)
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log.Fatal("[hevring] Rán disconnected, stopping")
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}()
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reply.Ok = true
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return nil
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}
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