原文作者:Cyinx
a framework in golang for game server or app server.
a example server for einx (https://github.com/Cyinx/game_server_einx)
einx 是一个由 golang 编写的用于游戏服务器或者应用服务器的开源框架。
设计核心:
每个模块有且仅有一个goroutine用于处理被投递到本模块中的消息,在模块中的逻辑不需要考虑同步问题,简化了逻辑开发难度,模块与模块之间可以通过RPC交互
首先安装 einx
git clone https://github.com/Cyinx/einx.git
创建一个简单的einx例子:
package mainimport ( "github.com/Cyinx/einx"
"github.com/Cyinx/einx/slog")func main() {
slog.SetLogPath("log/game_server/")
slog.LogInfo("game_server", "start server...")
slog.LogInfo("game_server", "hello world...")
einx.Run()
einx.Close()
}
einx的核心是module,module中可以添加各种component作为组件:
Cyinx/einx/network 网络相关的component
Cyinx/einx/db 数据库相关的component
创建一个TCPServer的component管理器:
package clientmgrimport ( "github.com/Cyinx/einx"
"github.com/Cyinx/einx/slog"
"msg_def")type Agent = einx.Agenttype AgentID = einx.AgentIDtype EventType = einx.EventTypetype Component = einx.Componenttype ComponentID = einx.ComponentIDtype ClientMgr struct {
client_map map[AgentID]Agent
tcp_link Component}var Instance = &ClientMgr{
client_map: make(map[AgentID]Agent),
}func (this *ClientMgr) GetClient(agent_id AgentID) (Agent, bool) { client, ok := this.client_map[agent_id] return client, ok
}func (this *ClientMgr) OnLinkerConneted(id AgentID, agent Agent) {
this.client_map[id] = agent //新连接连入服务器}func (this *ClientMgr) OnLinkerClosed(id AgentID, agent Agent) { delete(this.client_map, id) //连接断开}func (this *ClientMgr) OnComponentError(c Component, err error) {
}func (this *ClientMgr) OnComponentCreate(id ComponentID, component Component) {
this.tcp_link = component
component.Start()
slog.LogInfo("tcp", "Tcp sever start success")
}
创建一个逻辑module,并将TcpServer管理器加入到module之中,服务器就可以启动,并监听2345端口的请求
package mainimport ( "clientmgr"
"github.com/Cyinx/einx"
"github.com/Cyinx/einx/slog")var logic = einx.GetModule("logic")func main() {
slog.SetLogPath("log/game_server/")
logic.AddTcpServer(":2345", clientmgr.Instance)
slog.LogInfo("game_server", "start server...")
einx.Run()
einx.Close()
}
注册消息handler与Rpc: 注册消息handler需要事先注册一个Message:
package msg_defimport ( "github.com/Cyinx/einx/network"
"protobuf_gen")type VersionCheck = pbgen.VersionCheckvar VersionCheckMsgID = network.RegisterMsgProto(uint16(pbgen.MainMsgID_GENERAL_MSG), uint16(pbgen.HandlerMsgID_VERSION_CHECK),
(*VersionCheck)(nil))
在注册RPC时,使用字符串作为RPC名,注册handler时,需要使用之前注册的MsgID
import ( "msg_def")var logic = einx.GetModule("logic")func InitDBHandler() {
logic.RegisterRpcHandler("testRpc", testRpc)
logic.RegisterHandler(msg_def.VersionCheckMsgID, CheckVersion)
}func testRpc(sender interface{}, args []interface{}) {
}func CheckVersion(agent Agent, args interface{}) { version_check_msg := args.(*msg_def.VersionCheck)
}
注册定时器使用module.AddTimer函数,返回值为timerID,如果要提前停止timer,可以执行module.RemoveTimer(timerid):
import ( "msg_def")var logic = einx.GetModule("logic")var testTimerID uint64 = 0func InitDBHandler() {
logic.RegisterRpcHandler("testRpc", testRpc)
logic.RegisterHandler(msg_def.VersionCheckMsgID, CheckVersion)
}func testRpc(sender interface{}, args []interface{}) { if testTimerID != 0 {
logic.RemoveTimer(testTimerID)
}
}func TestTimer(args []interface{}) {
testTimerID = 0}func CheckVersion(agent Agent, args interface{}) { version_check_msg := args.(*msg_def.VersionCheck)
testTimerID = logic.AddTimer(1000,TestTimer,1,2,"测试")
}
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