复制项目

internal/msggateway/options.go

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+// Copyright © 2023 OpenIM. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package msggateway
+
+import "time"
+
+type (
+	Option  func(opt *configs)
+	configs struct {
+		// Long connection listening port
+		port int
+		// Maximum number of connections allowed for long connection
+		maxConnNum int64
+		// Connection handshake timeout
+		handshakeTimeout time.Duration
+		// Maximum length allowed for messages
+		messageMaxMsgLength int
+		// Websocket write buffer, default: 4096, 4kb.
+		writeBufferSize int
+	}
+)
+
+func WithPort(port int) Option {
+	return func(opt *configs) {
+		opt.port = port
+	}
+}
+
+func WithMaxConnNum(num int64) Option {
+	return func(opt *configs) {
+		opt.maxConnNum = num
+	}
+}
+
+func WithHandshakeTimeout(t time.Duration) Option {
+	return func(opt *configs) {
+		opt.handshakeTimeout = t
+	}
+}
+
+func WithMessageMaxMsgLength(length int) Option {
+	return func(opt *configs) {
+		opt.messageMaxMsgLength = length
+	}
+}
+
+func WithWriteBufferSize(size int) Option {
+	return func(opt *configs) {
+		opt.writeBufferSize = size
+	}
+}