103 lines
2.2 KiB
Go
103 lines
2.2 KiB
Go
package rpc
|
|
|
|
import (
|
|
"fmt"
|
|
"image"
|
|
"log"
|
|
"net"
|
|
"net/rpc"
|
|
"os"
|
|
"time"
|
|
|
|
"github.com/SpeckiJ/Hochwasser/pixelflut"
|
|
)
|
|
|
|
func ConnectHevring(ránAddress string) {
|
|
rpc.Register(new(Hevring))
|
|
|
|
fmt.Printf("[hevring] greeting Rán at %s\n", ránAddress)
|
|
conn, err := net.Dial("tcp", ránAddress)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
go rpc.ServeConn(conn)
|
|
fmt.Printf("[hevring] awaiting task from Rán\n")
|
|
}
|
|
|
|
type Hevring struct {
|
|
task FlutTask
|
|
taskQuit chan bool
|
|
}
|
|
|
|
type FlutTask struct {
|
|
Address string
|
|
MaxConns int
|
|
Img *image.NRGBA
|
|
Offset image.Point
|
|
Paused bool
|
|
Shuffle bool // TODO: refactor these as RenderOpts bitfield
|
|
RGBSplit bool
|
|
RandOffset bool
|
|
}
|
|
|
|
func (t FlutTask) String() string {
|
|
return fmt.Sprintf(
|
|
" %d conns @ %s\n img %v offset %v\n shuffle %v rgbsplit %v randoffset %v paused %v",
|
|
t.MaxConns, t.Address, t.Img.Bounds().Size(), t.Offset, t.Shuffle, t.RGBSplit, t.RandOffset, t.Paused,
|
|
)
|
|
}
|
|
|
|
type FlutAck struct{ Ok bool }
|
|
|
|
type FlutStatus struct {
|
|
*pixelflut.Performance
|
|
Ok bool
|
|
Fluting bool
|
|
}
|
|
|
|
func (h *Hevring) Flut(task FlutTask, reply *FlutAck) error {
|
|
// stop old task if new task is received
|
|
if h.taskQuit != nil {
|
|
close(h.taskQuit)
|
|
}
|
|
|
|
fmt.Printf("[hevring] Rán gave us /w o r k/!\n%v\n", task)
|
|
h.task = task
|
|
h.taskQuit = make(chan bool)
|
|
|
|
go pixelflut.Flut(task.Img, task.Offset, task.Shuffle, task.RGBSplit, task.RandOffset, task.Address, task.MaxConns, h.taskQuit, nil)
|
|
reply.Ok = true
|
|
return nil
|
|
}
|
|
|
|
func (h *Hevring) Status(metrics bool, reply *FlutStatus) error {
|
|
pixelflut.PerformanceReporter.Enabled = metrics
|
|
reply.Performance = pixelflut.PerformanceReporter
|
|
reply.Ok = true
|
|
reply.Fluting = h.taskQuit != nil
|
|
return nil
|
|
}
|
|
|
|
func (h *Hevring) Stop(x int, reply *FlutAck) error {
|
|
if h.taskQuit != nil {
|
|
fmt.Println("[hevring] stopping task")
|
|
h.task = FlutTask{}
|
|
close(h.taskQuit)
|
|
h.taskQuit = nil
|
|
reply.Ok = true
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (h *Hevring) Die(x int, reply *FlutAck) error {
|
|
// @robustness: waiting for reply to be sent via timeout
|
|
// @incomplete: should try to reconnect for a bit first
|
|
go func() {
|
|
time.Sleep(100 * time.Millisecond)
|
|
fmt.Println("[hevring] Rán disconnected, stopping")
|
|
os.Exit(0)
|
|
}()
|
|
reply.Ok = true
|
|
return nil
|
|
}
|