feat 初次提交

net/grpc/grpc_conn/conn.go

@@ -0,0 +1,42 @@
+package grpc_conn
+
+import (
+	"common/log"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
+	"google.golang.org/grpc/keepalive"
+	"time"
+)
+
+type GrpcConnection struct {
+	sid  int64
+	conn *grpc.ClientConn
+}
+
+func NewGrpcConnection(sid int64, address string) (*GrpcConnection, error) {
+	p := &GrpcConnection{
+		sid: sid,
+	}
+	conn, err := grpc.NewClient(
+		address,
+		grpc.WithTransportCredentials(insecure.NewCredentials()),
+		grpc.WithKeepaliveParams(
+			keepalive.ClientParameters{
+				Time:                30 * time.Second, // 保活探测包发送的时间间隔
+				Timeout:             10 * time.Second, // 保活探测包的超时时间
+				PermitWithoutStream: true,
+			},
+		),
+		//grpc.WithStatsHandler(&StatsHandler{}),
+	)
+	if err != nil {
+		log.Errorf("create grpc err: %v, sid: %v, addr: %v", err, sid, address)
+		return nil, err
+	}
+	p.conn = conn
+	return p, nil
+}
+
+func (g *GrpcConnection) GetConnection() *grpc.ClientConn {
+	return g.conn
+}

net/grpc/grpc_conn/conn_mgr.go

@@ -0,0 +1,62 @@
+package grpc_conn
+
+import (
+	"common/log"
+	"fmt"
+	"google.golang.org/grpc"
+	"math/rand"
+)
+
+type GrpcConnectionMgr struct {
+	poolM map[int64]*GrpcConnection
+	poolS []*GrpcConnection
+}
+
+func NewGrpcConnectionMgr() *GrpcConnectionMgr {
+	return &GrpcConnectionMgr{
+		poolM: make(map[int64]*GrpcConnection),
+		poolS: make([]*GrpcConnection, 0),
+	}
+}
+
+func (p *GrpcConnectionMgr) Store(sid int64, addr string) {
+	pool, err := NewGrpcConnection(sid, addr)
+	if err != nil {
+		log.Errorf("create grpc err: %v, sid: %v, addr: %v", err, sid, addr)
+		return
+	}
+	p.poolM[sid] = pool
+	p.poolS = append(p.poolS, pool)
+}
+
+func (p *GrpcConnectionMgr) Delete(sid int64) int {
+	delete(p.poolM, sid)
+	for i, pool := range p.poolS {
+		if pool.sid == sid {
+			p.poolS = append(p.poolS[:i], p.poolS[i+1:]...)
+			break
+		}
+	}
+	return len(p.poolS)
+}
+
+func (p *GrpcConnectionMgr) Load(sid ...int64) (*grpc.ClientConn, error) {
+	var pool *GrpcConnection
+	if len(sid) > 0 && sid[0] > 0 {
+		pool = p.poolM[sid[0]]
+	} else {
+		pool = p.poolS[rand.Intn(len(p.poolS))]
+	}
+	if pool == nil {
+		return nil, fmt.Errorf("cannot find connection")
+	}
+	return pool.GetConnection(), nil
+}
+
+func (p *GrpcConnectionMgr) LoadAll() map[int64]*grpc.ClientConn {
+	sidM := make(map[int64]*grpc.ClientConn)
+	for sid, pool := range p.poolM {
+		sidM[sid] = pool.GetConnection()
+	}
+	return sidM
+}