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server.go
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server.go
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// +build !windows
package gev
import (
"errors"
"runtime"
"time"
"github.com/Allenxuxu/gev/eventloop"
"github.com/Allenxuxu/gev/log"
"github.com/Allenxuxu/toolkit/sync"
"github.com/Allenxuxu/toolkit/sync/atomic"
"github.com/RussellLuo/timingwheel"
"golang.org/x/sys/unix"
)
// Handler Server 注册接口
type Handler interface {
CallBack
OnConnect(c *Connection)
}
// Server gev Server
type Server struct {
listener *listener
workLoops []*eventloop.EventLoop
callback Handler
timingWheel *timingwheel.TimingWheel
opts *Options
running atomic.Bool
}
// NewServer 创建 Server
func NewServer(handler Handler, opts ...Option) (server *Server, err error) {
if handler == nil {
return nil, errors.New("handler is nil")
}
options := newOptions(opts...)
server = new(Server)
server.callback = handler
server.opts = options
server.timingWheel = timingwheel.NewTimingWheel(server.opts.tick, server.opts.wheelSize)
server.listener, err = newListener(server.opts.Network, server.opts.Address, options.ReusePort, server.handleNewConnection)
if err != nil {
return nil, err
}
if server.opts.NumLoops <= 0 {
server.opts.NumLoops = runtime.NumCPU()
}
wloops := make([]*eventloop.EventLoop, server.opts.NumLoops)
for i := 0; i < server.opts.NumLoops; i++ {
l, err := eventloop.New()
if err != nil {
for j := 0; j < i; j++ {
_ = wloops[j].Stop()
}
return nil, err
}
wloops[i] = l
}
server.workLoops = wloops
return
}
// RunAfter 延时任务
func (s *Server) RunAfter(d time.Duration, f func()) *timingwheel.Timer {
return s.timingWheel.AfterFunc(d, f)
}
// RunEvery 定时任务
func (s *Server) RunEvery(d time.Duration, f func()) *timingwheel.Timer {
return s.timingWheel.ScheduleFunc(&everyScheduler{Interval: d}, f)
}
func (s *Server) handleNewConnection(fd int, sa unix.Sockaddr) {
loop := s.opts.Strategy(s.workLoops)
c := NewConnection(fd, loop, sa, s.opts.Protocol, s.timingWheel, s.opts.IdleTime, s.callback)
loop.QueueInLoop(func() {
s.callback.OnConnect(c)
if err := loop.AddSocketAndEnableRead(fd, c); err != nil {
log.Error("[AddSocketAndEnableRead]", err)
}
})
}
// Start 启动 Server
func (s *Server) Start() {
sw := sync.WaitGroupWrapper{}
s.timingWheel.Start()
length := len(s.workLoops)
for i := 0; i < length; i++ {
sw.AddAndRun(s.workLoops[i].Run)
}
sw.AddAndRun(s.listener.Run)
s.running.Set(true)
sw.Wait()
}
// Stop 关闭 Server
func (s *Server) Stop() {
if s.running.Get() {
s.running.Set(false)
s.timingWheel.Stop()
if err := s.listener.Stop(); err != nil {
log.Error(err)
}
for k := range s.workLoops {
if err := s.workLoops[k].Stop(); err != nil {
log.Error(err)
}
}
}
}
// Options 返回 options
func (s *Server) Options() Options {
return *s.opts
}