fermentord/vendor/github.com/nats-io/nats.go/testing_internal.go

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2024-06-15 13:58:47 +00:00
// Copyright 2023 The NATS Authors
// 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.
//go:build internal_testing
// +build internal_testing
// Functions in this file are only available when building nats.go with the
// internal_testing build tag. They are used by the nats.go test suite.
package nats
// AddMsgFilter adds a message filter for the given subject
// to the connection. The filter will be called for each
// message received on the subject. If the filter returns
// nil, the message will be dropped.
func (nc *Conn) AddMsgFilter(subject string, filter msgFilter) {
nc.subsMu.Lock()
defer nc.subsMu.Unlock()
if nc.filters == nil {
nc.filters = make(map[string]msgFilter)
}
nc.filters[subject] = filter
}
// RemoveMsgFilter removes a message filter for the given subject.
func (nc *Conn) RemoveMsgFilter(subject string) {
nc.subsMu.Lock()
defer nc.subsMu.Unlock()
if nc.filters != nil {
delete(nc.filters, subject)
if len(nc.filters) == 0 {
nc.filters = nil
}
}
}
// IsJSControlMessage returns true if the message is a JetStream control message.
func IsJSControlMessage(msg *Msg) (bool, int) {
return isJSControlMessage(msg)
}
// CloseTCPConn closes the underlying TCP connection.
// It can be used to simulate a disconnect.
func (nc *Conn) CloseTCPConn() {
nc.mu.Lock()
defer nc.mu.Unlock()
nc.conn.Close()
}