Hilbish/timerhandler.go

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package main
import (
"sync"
"time"
"hilbish/util"
rt "github.com/arnodel/golua/runtime"
)
var timers *timerHandler
type timerHandler struct {
mu *sync.RWMutex
timers map[int]*timer
latestID int
running int
}
func newTimerHandler() *timerHandler {
return &timerHandler{
timers: make(map[int]*timer),
latestID: 0,
mu: &sync.RWMutex{},
}
}
func (th *timerHandler) create(typ timerType, dur time.Duration, fun *rt.Closure) *timer {
th.mu.Lock()
defer th.mu.Unlock()
th.latestID++
t := &timer{
typ: typ,
fun: fun,
dur: dur,
channel: make(chan bool, 1),
th: th,
id: th.latestID,
}
th.timers[th.latestID] = t
return t
}
func (th *timerHandler) get(id int) *timer {
th.mu.RLock()
defer th.mu.RUnlock()
return th.timers[id]
}
func (th *timerHandler) luaCreate(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
if err := c.CheckNArgs(3); err != nil {
return nil, err
}
timerTypInt, err := c.IntArg(0)
if err != nil {
return nil, err
}
ms, err := c.IntArg(1)
if err != nil {
return nil, err
}
cb, err := c.ClosureArg(2)
if err != nil {
return nil, err
}
timerTyp := timerType(timerTypInt)
tmr := th.create(timerTyp, time.Duration(ms) * time.Millisecond, cb)
return c.PushingNext1(t.Runtime, tmr.lua()), nil
}
func (th *timerHandler) luaGet(thr *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
if err := c.Check1Arg(); err != nil {
return nil, err
}
id, err := c.IntArg(0)
if err != nil {
return nil, err
}
t := th.get(int(id))
if t != nil {
return c.PushingNext1(thr.Runtime, t.lua()), nil
}
return c.Next(), nil
}
func (th *timerHandler) loader(rtm *rt.Runtime) *rt.Table {
thExports := map[string]util.LuaExport{
"create": {th.luaCreate, 3, false},
"get": {th.luaGet, 1, false},
}
luaTh := rt.NewTable()
util.SetExports(rtm, luaTh, thExports)
return luaTh
}