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Vendor new queue-worker version

Browse Source 
Introduces 0.4.6 of queue-worker - see upstream repo for changes.

Signed-off-by: Alex Ellis (VMware) <alexellis2@gmail.com>
This commit is contained in:
Alex Ellis (VMware)
2018-06-18 20:09:33 +01:00
parent 41bda568a7
commit 223c561706
81 changed files with 4701 additions and 1323 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
gateway/vendor/github.com/nats-io/go-nats/.travis.yml generated vendored
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@ -1,9 +1,9 @@
language: go
sudo: false
go:
- 1.10.x
- 1.9.x
- 1.8.x
- 1.7.x
install:
- go get -t ./...
- go get github.com/nats-io/gnatsd
@ -18,4 +18,4 @@ before_script:
- megacheck -ignore "$(cat staticcheck.ignore)" ./...
script:
- go test -i -race ./...
- if [[ "$TRAVIS_GO_VERSION" == 1.7.* ]]; then ./scripts/cov.sh TRAVIS; else go test -v -race ./...; fi
- if [[ "$TRAVIS_GO_VERSION" == 1.9.* ]]; then ./scripts/cov.sh TRAVIS; else go test -v -race ./...; fi

213
gateway/vendor/github.com/nats-io/go-nats/LICENSE generated vendored
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@ -1,20 +1,201 @@
The MIT License (MIT)
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http://www.apache.org/licenses/
Copyright (c) 2012-2017 Apcera Inc.
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or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
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Licensed under the Apache License, Version 2.0 (the "License");
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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.

7
gateway/vendor/github.com/nats-io/go-nats/OWNERS generated vendored Normal file
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@ -0,0 +1,7 @@
reviewers:
- derekcollison
- kozlovic
- wallyqs
approvers:
- derekcollison
- kozlovic

25
gateway/vendor/github.com/nats-io/go-nats/README.md generated vendored
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@ -1,7 +1,7 @@
# NATS - Go Client
A [Go](http://golang.org) client for the [NATS messaging system](https://nats.io).
[![License MIT](https://img.shields.io/badge/License-MIT-blue.svg)](http://opensource.org/licenses/MIT)
[![License Apache 2](https://img.shields.io/badge/License-Apache2-blue.svg)](https://www.apache.org/licenses/LICENSE-2.0)
[![Go Report Card](https://goreportcard.com/badge/github.com/nats-io/go-nats)](https://goreportcard.com/report/github.com/nats-io/go-nats) [![Build Status](https://travis-ci.org/nats-io/go-nats.svg?branch=master)](http://travis-ci.org/nats-io/go-nats) [![GoDoc](https://godoc.org/github.com/nats-io/go-nats?status.svg)](http://godoc.org/github.com/nats-io/go-nats) [![Coverage Status](https://coveralls.io/repos/nats-io/go-nats/badge.svg?branch=master)](https://coveralls.io/r/nats-io/go-nats?branch=master)
## Installation
@ -327,24 +327,5 @@ err := c.RequestWithContext(ctx, "foo", req, resp)
## License
(The MIT License)
Copyright (c) 2012-2017 Apcera Inc.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to
deal in the Software without restriction, including without limitation the
rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
IN THE SOFTWARE.
Unless otherwise noted, the NATS source files are distributed
under the Apache Version 2.0 license found in the LICENSE file.

13
gateway/vendor/github.com/nats-io/go-nats/bench/bench.go generated vendored
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@ -1,4 +1,15 @@
// Copyright 2016 Apcera Inc. All rights reserved.
// Copyright 2016-2018 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.
package bench

13
gateway/vendor/github.com/nats-io/go-nats/bench/benchlib_test.go generated vendored
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@ -1,3 +1,16 @@
// Copyright 2016-2018 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.
package bench
import (

13
gateway/vendor/github.com/nats-io/go-nats/context.go generated vendored
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@ -1,4 +1,15 @@
// Copyright 2012-2017 Apcera Inc. All rights reserved.
// Copyright 2016-2018 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.
// +build go1.7

13
gateway/vendor/github.com/nats-io/go-nats/enc.go generated vendored
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@ -1,4 +1,15 @@
// Copyright 2012-2015 Apcera Inc. All rights reserved.
// Copyright 2012-2018 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.
package nats

13
gateway/vendor/github.com/nats-io/go-nats/enc_test.go generated vendored
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@ -1,3 +1,16 @@
// Copyright 2012-2018 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.
package nats_test
import (

13
gateway/vendor/github.com/nats-io/go-nats/encoders/builtin/default_enc.go generated vendored
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@ -1,4 +1,15 @@
// Copyright 2012-2015 Apcera Inc. All rights reserved.
// Copyright 2012-2018 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.
package builtin

13
gateway/vendor/github.com/nats-io/go-nats/encoders/builtin/gob_enc.go generated vendored
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@ -1,4 +1,15 @@
// Copyright 2013-2015 Apcera Inc. All rights reserved.
// Copyright 2013-2018 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.
package builtin

13
gateway/vendor/github.com/nats-io/go-nats/encoders/builtin/json_enc.go generated vendored
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@ -1,4 +1,15 @@
// Copyright 2012-2015 Apcera Inc. All rights reserved.
// Copyright 2012-2018 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.
package builtin

13
gateway/vendor/github.com/nats-io/go-nats/encoders/protobuf/protobuf_enc.go generated vendored
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@ -1,4 +1,15 @@
// Copyright 2015 Apcera Inc. All rights reserved.
// Copyright 2015-2018 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.
package protobuf

13
gateway/vendor/github.com/nats-io/go-nats/example_test.go generated vendored
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@ -1,3 +1,16 @@
// Copyright 2012-2018 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.
package nats_test
import (

13
gateway/vendor/github.com/nats-io/go-nats/examples/nats-bench.go generated vendored
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@ -1,4 +1,15 @@
// Copyright 2015 Apcera Inc. All rights reserved.
// Copyright 2015-2018 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.
package main

14
gateway/vendor/github.com/nats-io/go-nats/examples/nats-pub.go generated vendored
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@ -1,4 +1,16 @@
// Copyright 2012-2016 Apcera Inc. All rights reserved.
// Copyright 2012-2018 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.
// +build ignore
package main

14
gateway/vendor/github.com/nats-io/go-nats/examples/nats-qsub.go generated vendored
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@ -1,4 +1,16 @@
// Copyright 2012-2016 Apcera Inc. All rights reserved.
// Copyright 2012-2018 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.
// +build ignore
package main

14
gateway/vendor/github.com/nats-io/go-nats/examples/nats-req.go generated vendored
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@ -1,4 +1,16 @@
// Copyright 2012-2016 Apcera Inc. All rights reserved.
// Copyright 2012-2018 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.
// +build ignore
package main

14
gateway/vendor/github.com/nats-io/go-nats/examples/nats-rply.go generated vendored
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@ -1,4 +1,16 @@
// Copyright 2012-2016 Apcera Inc. All rights reserved.
// Copyright 2012-2018 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.
// +build ignore
package main

14
gateway/vendor/github.com/nats-io/go-nats/examples/nats-sub.go generated vendored
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@ -1,4 +1,16 @@
// Copyright 2012-2016 Apcera Inc. All rights reserved.
// Copyright 2012-2018 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.
// +build ignore
package main

240
gateway/vendor/github.com/nats-io/go-nats/nats.go generated vendored
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@ -1,4 +1,15 @@
// Copyright 2012-2017 Apcera Inc. All rights reserved.
// Copyright 2012-2018 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.
// A Go client for the NATS messaging system (https://nats.io).
package nats
@ -11,15 +22,16 @@ import (
"encoding/json"
"errors"
"fmt"
"io"
"io/ioutil"
"math/rand"
"net"
"net/url"
"regexp"
"runtime"
"strconv"
"strings"
"sync"
"sync/atomic"
"time"
"github.com/nats-io/go-nats/util"
@ -28,7 +40,7 @@ import (
// Default Constants
const (
Version = "1.3.1"
Version = "1.5.0"
DefaultURL = "nats://localhost:4222"
DefaultPort = 4222
DefaultMaxReconnect = 60
@ -351,6 +363,12 @@ type Msg struct {
Data []byte
Sub *Subscription
next *Msg
barrier *barrierInfo
}
type barrierInfo struct {
refs int64
f func()
}
// Tracks various stats received and sent on this connection,
@ -528,6 +546,14 @@ func MaxReconnects(max int) Option {
}
}
// ReconnectBufSize sets the buffer size of messages kept while busy reconnecting
func ReconnectBufSize(size int) Option {
return func(o *Options) error {
o.ReconnectBufSize = size
return nil
}
}
// Timeout is an Option to set the timeout for Dial on a connection.
func Timeout(t time.Duration) Option {
return func(o *Options) error {
@ -568,7 +594,7 @@ func DiscoveredServersHandler(cb ConnHandler) Option {
}
}
// ErrHandler is an Option to set the async error handler.
// ErrorHandler is an Option to set the async error handler.
func ErrorHandler(cb ErrHandler) Option {
return func(o *Options) error {
o.AsyncErrorCB = cb
@ -615,7 +641,7 @@ func SetCustomDialer(dialer CustomDialer) Option {
}
}
// UseOldRequestyStyle is an Option to force usage of the old Request style.
// UseOldRequestStyle is an Option to force usage of the old Request style.
func UseOldRequestStyle() Option {
return func(o *Options) error {
o.UseOldRequestStyle = true
@ -665,7 +691,7 @@ func (nc *Conn) SetClosedHandler(cb ConnHandler) {
nc.Opts.ClosedCB = cb
}
// SetErrHandler will set the async error handler.
// SetErrorHandler will set the async error handler.
func (nc *Conn) SetErrorHandler(cb ErrHandler) {
if nc == nil {
return
@ -1094,7 +1120,7 @@ func (nc *Conn) connect() error {
} else {
// Cancel out default connection refused, will trigger the
// No servers error conditional
if matched, _ := regexp.Match(`connection refused`, []byte(err.Error())); matched {
if strings.Contains(err.Error(), "connection refused") {
returnedErr = nil
}
}
@ -1229,38 +1255,40 @@ func (nc *Conn) sendConnect() error {
return err
}
// Now read the response from the server.
br := bufio.NewReaderSize(nc.conn, defaultBufSize)
line, err := br.ReadString('\n')
// We don't want to read more than we need here, otherwise
// we would need to transfer the excess read data to the readLoop.
// Since in normal situations we just are looking for a PONG\r\n,
// reading byte-by-byte here is ok.
proto, err := nc.readProto()
if err != nil {
return err
}
// If opts.Verbose is set, handle +OK
if nc.Opts.Verbose && line == okProto {
if nc.Opts.Verbose && proto == okProto {
// Read the rest now...
line, err = br.ReadString('\n')
proto, err = nc.readProto()
if err != nil {
return err
}
}
// We expect a PONG
if line != pongProto {
if proto != pongProto {
// But it could be something else, like -ERR
// Since we no longer use ReadLine(), trim the trailing "\r\n"
line = strings.TrimRight(line, "\r\n")
proto = strings.TrimRight(proto, "\r\n")
// If it's a server error...
if strings.HasPrefix(line, _ERR_OP_) {
if strings.HasPrefix(proto, _ERR_OP_) {
// Remove -ERR, trim spaces and quotes, and convert to lower case.
line = normalizeErr(line)
return errors.New("nats: " + line)
proto = normalizeErr(proto)
return errors.New("nats: " + proto)
}
// Notify that we got an unexpected protocol.
return fmt.Errorf("nats: expected '%s', got '%s'", _PONG_OP_, line)
return fmt.Errorf("nats: expected '%s', got '%s'", _PONG_OP_, proto)
}
// This is where we are truly connected.
@ -1269,6 +1297,29 @@ func (nc *Conn) sendConnect() error {
return nil
}
// reads a protocol one byte at a time.
func (nc *Conn) readProto() (string, error) {
var (
_buf = [10]byte{}
buf = _buf[:0]
b = [1]byte{}
protoEnd = byte('\n')
)
for {
if _, err := nc.conn.Read(b[:1]); err != nil {
// Do not report EOF error
if err == io.EOF {
return string(buf), nil
}
return "", err
}
buf = append(buf, b[0])
if b[0] == protoEnd {
return string(buf), nil
}
}
}
// A control protocol line.
type control struct {
op, args string
@ -1460,10 +1511,12 @@ func (nc *Conn) processOpErr(err error) {
nc.conn = nil
}
// Create a new pending buffer to underpin the bufio Writer while
// we are reconnecting.
nc.pending = &bytes.Buffer{}
nc.bw = bufio.NewWriterSize(nc.pending, nc.Opts.ReconnectBufSize)
// Reset pending buffers before reconnecting.
if nc.pending == nil {
nc.pending = new(bytes.Buffer)
}
nc.pending.Reset()
nc.bw.Reset(nc.pending)
go nc.doReconnect()
nc.mu.Unlock()
@ -1571,6 +1624,13 @@ func (nc *Conn) waitForMsgs(s *Subscription) {
if s.pHead == nil {
s.pTail = nil
}
if m.barrier != nil {
s.mu.Unlock()
if atomic.AddInt64(&m.barrier.refs, -1) == 0 {
m.barrier.f()
}
continue
}
s.pMsgs--
s.pBytes -= len(m.Data)
}
@ -1599,6 +1659,19 @@ func (nc *Conn) waitForMsgs(s *Subscription) {
break
}
}
// Check for barrier messages
s.mu.Lock()
for m := s.pHead; m != nil; m = s.pHead {
if m.barrier != nil {
s.mu.Unlock()
if atomic.AddInt64(&m.barrier.refs, -1) == 0 {
m.barrier.f()
}
s.mu.Lock()
}
s.pHead = m.next
}
s.mu.Unlock()
}
// processMsg is called by parse and will place the msg on the
@ -1812,32 +1885,67 @@ func (nc *Conn) processInfo(info string) error {
if info == _EMPTY_ {
return nil
}
if err := json.Unmarshal([]byte(info), &nc.info); err != nil {
ncInfo := serverInfo{}
if err := json.Unmarshal([]byte(info), &ncInfo); err != nil {
return err
}
// Copy content into connection's info structure.
nc.info = ncInfo
// The array could be empty/not present on initial connect,
// if advertise is disabled on that server, or servers that
// did not include themselves in the async INFO protocol.
// If empty, do not remove the implicit servers from the pool.
if len(ncInfo.ConnectURLs) == 0 {
return nil
}
// Note about pool randomization: when the pool was first created,
// it was randomized (if allowed). We keep the order the same (removing
// implicit servers that are no longer sent to us). New URLs are sent
// to us in no specific order so don't need extra randomization.
hasNew := false
// This is what we got from the server we are connected to.
urls := nc.info.ConnectURLs
if len(urls) > 0 {
added := false
// If randomization is allowed, shuffle the received array, not the
// entire pool. We want to preserve the pool's order up to this point
// (this would otherwise be problematic for the (re)connect loop).
if !nc.Opts.NoRandomize {
for i := range urls {
j := rand.Intn(i + 1)
urls[i], urls[j] = urls[j], urls[i]
}
// Transform that to a map for easy lookups
tmp := make(map[string]struct{}, len(urls))
for _, curl := range urls {
tmp[curl] = struct{}{}
}
// Walk the pool and removed the implicit servers that are no longer in the
// given array/map
sp := nc.srvPool
for i := 0; i < len(sp); i++ {
srv := sp[i]
curl := srv.url.Host
// Check if this URL is in the INFO protocol
_, inInfo := tmp[curl]
// Remove from the temp map so that at the end we are left with only
// new (or restarted) servers that need to be added to the pool.
delete(tmp, curl)
// Keep servers that were set through Options, but also the one that
// we are currently connected to (even if it is a discovered server).
if !srv.isImplicit || srv.url == nc.url {
continue
}
for _, curl := range urls {
if _, present := nc.urls[curl]; !present {
if err := nc.addURLToPool(fmt.Sprintf("nats://%s", curl), true); err != nil {
continue
}
added = true
}
if !inInfo {
// Remove from server pool. Keep current order.
copy(sp[i:], sp[i+1:])
nc.srvPool = sp[:len(sp)-1]
sp = nc.srvPool
i--
}
if added && !nc.initc && nc.Opts.DiscoveredServersCB != nil {
nc.ach <- func() { nc.Opts.DiscoveredServersCB(nc) }
}
// If there are any left in the tmp map, these are new (or restarted) servers
// and need to be added to the pool.
for curl := range tmp {
// Before adding, check if this is a new (as in never seen) URL.
// This is used to figure out if we invoke the DiscoveredServersCB
if _, present := nc.urls[curl]; !present {
hasNew = true
}
nc.addURLToPool(fmt.Sprintf("nats://%s", curl), true)
}
if hasNew && !nc.initc && nc.Opts.DiscoveredServersCB != nil {
nc.ach <- func() { nc.Opts.DiscoveredServersCB(nc) }
}
return nil
}
@ -3006,3 +3114,51 @@ func (nc *Conn) TLSRequired() bool {
defer nc.mu.Unlock()
return nc.info.TLSRequired
}
// Barrier schedules the given function `f` to all registered asynchronous
// subscriptions.
// Only the last subscription to see this barrier will invoke the function.
// If no subscription is registered at the time of this call, `f()` is invoked
// right away.
// ErrConnectionClosed is returned if the connection is closed prior to
// the call.
func (nc *Conn) Barrier(f func()) error {
nc.mu.Lock()
if nc.isClosed() {
nc.mu.Unlock()
return ErrConnectionClosed
}
nc.subsMu.Lock()
// Need to figure out how many non chan subscriptions there are
numSubs := 0
for _, sub := range nc.subs {
if sub.typ == AsyncSubscription {
numSubs++
}
}
if numSubs == 0 {
nc.subsMu.Unlock()
nc.mu.Unlock()
f()
return nil
}
barrier := &barrierInfo{refs: int64(numSubs), f: f}
for _, sub := range nc.subs {
sub.mu.Lock()
if sub.mch == nil {
msg := &Msg{barrier: barrier}
// Push onto the async pList
if sub.pTail != nil {
sub.pTail.next = msg
} else {
sub.pHead = msg
sub.pCond.Signal()
}
sub.pTail = msg
}
sub.mu.Unlock()
}
nc.subsMu.Unlock()
nc.mu.Unlock()
return nil
}

127
gateway/vendor/github.com/nats-io/go-nats/nats_test.go generated vendored
View File

@ -1,3 +1,16 @@
// Copyright 2012-2018 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.
package nats
////////////////////////////////////////////////////////////////////////////////
@ -10,6 +23,7 @@ import (
"encoding/json"
"errors"
"fmt"
"os"
"reflect"
"runtime"
"strings"
@ -40,7 +54,7 @@ func stackFatalf(t *testing.T, f string, args ...interface{}) {
lines = append(lines, msg)
// Generate the Stack of callers: Skip us and verify* frames.
for i := 2; true; i++ {
for i := 1; true; i++ {
_, file, line, ok := runtime.Caller(i)
if !ok {
break
@ -51,6 +65,23 @@ func stackFatalf(t *testing.T, f string, args ...interface{}) {
t.Fatalf("%s", strings.Join(lines, "\n"))
}
func TestVersionMatchesTag(t *testing.T) {
tag := os.Getenv("TRAVIS_TAG")
if tag == "" {
t.SkipNow()
}
// We expect a tag of the form vX.Y.Z. If that's not the case,
// we need someone to have a look. So fail if first letter is not
// a `v`
if tag[0] != 'v' {
t.Fatalf("Expect tag to start with `v`, tag is: %s", tag)
}
// Strip the `v` from the tag for the version comparison.
if Version != tag[1:] {
t.Fatalf("Version (%s) does not match tag (%s)", Version, tag[1:])
}
}
////////////////////////////////////////////////////////////////////////////////
// Reconnect tests
////////////////////////////////////////////////////////////////////////////////
@ -935,7 +966,7 @@ func TestAsyncINFO(t *testing.T) {
}
}
checkPool := func(inThatOrder bool, urls ...string) {
checkPool := func(urls ...string) {
// Check both pool and urls map
if len(c.srvPool) != len(urls) {
stackFatalf(t, "Pool should have %d elements, has %d", len(urls), len(c.srvPool))
@ -943,35 +974,27 @@ func TestAsyncINFO(t *testing.T) {
if len(c.urls) != len(urls) {
stackFatalf(t, "Map should have %d elements, has %d", len(urls), len(c.urls))
}
for i, url := range urls {
if inThatOrder {
if c.srvPool[i].url.Host != url {
stackFatalf(t, "Pool should have %q at index %q, has %q", url, i, c.srvPool[i].url.Host)
}
} else {
if _, present := c.urls[url]; !present {
stackFatalf(t, "Pool should have %q", url)
}
for _, url := range urls {
if _, present := c.urls[url]; !present {
stackFatalf(t, "Pool should have %q", url)
}
}
}
// Now test the decoding of "connect_urls"
// No randomize for now
c.Opts.NoRandomize = true
// Reset the pool
c.setupServerPool()
// Reinitialize the parser
c.ps = &parseState{}
info = []byte("INFO {\"connect_urls\":[\"localhost:5222\"]}\r\n")
info = []byte("INFO {\"connect_urls\":[\"localhost:4222\", \"localhost:5222\"]}\r\n")
err = c.parse(info)
if err != nil || c.ps.state != OP_START {
t.Fatalf("Unexpected: %d : %v\n", c.ps.state, err)
}
// Pool now should contain localhost:4222 (the default URL) and localhost:5222
checkPool(true, "localhost:4222", "localhost:5222")
checkPool("localhost:4222", "localhost:5222")
// Make sure that if client receives the same, it is not added again.
err = c.parse(info)
@ -979,84 +1002,16 @@ func TestAsyncINFO(t *testing.T) {
t.Fatalf("Unexpected: %d : %v\n", c.ps.state, err)
}
// Pool should still contain localhost:4222 (the default URL) and localhost:5222
checkPool(true, "localhost:4222", "localhost:5222")
checkPool("localhost:4222", "localhost:5222")
// Receive a new URL
info = []byte("INFO {\"connect_urls\":[\"localhost:6222\"]}\r\n")
info = []byte("INFO {\"connect_urls\":[\"localhost:4222\", \"localhost:5222\", \"localhost:6222\"]}\r\n")
err = c.parse(info)
if err != nil || c.ps.state != OP_START {
t.Fatalf("Unexpected: %d : %v\n", c.ps.state, err)
}
// Pool now should contain localhost:4222 (the default URL) localhost:5222 and localhost:6222
checkPool(true, "localhost:4222", "localhost:5222", "localhost:6222")
// Receive more than 1 URL at once
info = []byte("INFO {\"connect_urls\":[\"localhost:7222\", \"localhost:8222\"]}\r\n")
err = c.parse(info)
if err != nil || c.ps.state != OP_START {
t.Fatalf("Unexpected: %d : %v\n", c.ps.state, err)
}
// Pool now should contain localhost:4222 (the default URL) localhost:5222, localhost:6222
// localhost:7222 and localhost:8222
checkPool(true, "localhost:4222", "localhost:5222", "localhost:6222", "localhost:7222", "localhost:8222")
// Test with pool randomization now. Note that with randominzation,
// the initial pool is randomize, then each array of urls that the
// client gets from the INFO protocol is randomized, but added to
// the end of the pool.
c.Opts.NoRandomize = false
c.setupServerPool()
info = []byte("INFO {\"connect_urls\":[\"localhost:5222\"]}\r\n")
err = c.parse(info)
if err != nil || c.ps.state != OP_START {
t.Fatalf("Unexpected: %d : %v\n", c.ps.state, err)
}
// Pool now should contain localhost:4222 (the default URL) and localhost:5222
checkPool(true, "localhost:4222", "localhost:5222")
// Make sure that if client receives the same, it is not added again.
err = c.parse(info)
if err != nil || c.ps.state != OP_START {
t.Fatalf("Unexpected: %d : %v\n", c.ps.state, err)
}
// Pool should still contain localhost:4222 (the default URL) and localhost:5222
checkPool(true, "localhost:4222", "localhost:5222")
// Receive a new URL
info = []byte("INFO {\"connect_urls\":[\"localhost:6222\"]}\r\n")
err = c.parse(info)
if err != nil || c.ps.state != OP_START {
t.Fatalf("Unexpected: %d : %v\n", c.ps.state, err)
}
// Pool now should contain localhost:4222 (the default URL) localhost:5222 and localhost:6222
checkPool(true, "localhost:4222", "localhost:5222", "localhost:6222")
// Receive more than 1 URL at once. Add more than 2 to increase the chance of
// the array being shuffled.
info = []byte("INFO {\"connect_urls\":[\"localhost:7222\", \"localhost:8222\", " +
"\"localhost:9222\", \"localhost:10222\", \"localhost:11222\"]}\r\n")
err = c.parse(info)
if err != nil || c.ps.state != OP_START {
t.Fatalf("Unexpected: %d : %v\n", c.ps.state, err)
}
// Pool now should contain localhost:4222 (the default URL) localhost:5222, localhost:6222
// localhost:7222, localhost:8222, localhost:9222, localhost:10222 and localhost:11222
checkPool(false, "localhost:4222", "localhost:5222", "localhost:6222", "localhost:7222", "localhost:8222",
"localhost:9222", "localhost:10222", "localhost:11222")
// Finally, check that (part of) the pool should be randomized.
allUrls := []string{"localhost:4222", "localhost:5222", "localhost:6222", "localhost:7222", "localhost:8222",
"localhost:9222", "localhost:10222", "localhost:11222"}
same := 0
for i, url := range c.srvPool {
if url.url.Host == allUrls[i] {
same++
}
}
if same == len(allUrls) {
t.Fatal("Pool does not seem to be randomized")
}
checkPool("localhost:4222", "localhost:5222", "localhost:6222")
// Check that pool may be randomized on setup, but new URLs are always
// added at end of pool.

13
gateway/vendor/github.com/nats-io/go-nats/netchan.go generated vendored
View File

@ -1,4 +1,15 @@
// Copyright 2013-2017 Apcera Inc. All rights reserved.
// Copyright 2013-2018 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.
package nats

13
gateway/vendor/github.com/nats-io/go-nats/parser.go generated vendored
View File

@ -1,4 +1,15 @@
// Copyright 2012-2017 Apcera Inc. All rights reserved.
// Copyright 2012-2018 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.
package nats

13
gateway/vendor/github.com/nats-io/go-nats/test/auth_test.go generated vendored
View File

@ -1,3 +1,16 @@
// Copyright 2012-2018 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.
package test
import (

13
gateway/vendor/github.com/nats-io/go-nats/test/basic_test.go generated vendored
View File

@ -1,3 +1,16 @@
// Copyright 2012-2018 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.
package test
import (

13
gateway/vendor/github.com/nats-io/go-nats/test/bench_test.go generated vendored
View File

@ -1,3 +1,16 @@
// Copyright 2012-2018 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.
package test
import (

254
gateway/vendor/github.com/nats-io/go-nats/test/cluster_test.go generated vendored
View File

@ -1,7 +1,22 @@
// Copyright 2012-2018 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.
package test
import (
"fmt"
"math"
"net"
"regexp"
"runtime"
"strings"
@ -9,6 +24,7 @@ import (
"testing"
"time"
"github.com/nats-io/gnatsd/server"
"github.com/nats-io/gnatsd/test"
"github.com/nats-io/go-nats"
)
@ -25,6 +41,17 @@ var testServers = []string{
var servers = strings.Join(testServers, ",")
func serverVersionAtLeast(major, minor, update int) error {
var (
ma, mi, up int
)
fmt.Sscanf(server.VERSION, "%d.%d.%d", &ma, &mi, &up)
if ma > major || (ma == major && mi > minor) || (ma == major && mi == minor && up >= update) {
return nil
}
return fmt.Errorf("Server version is %v, requires %d.%d.%d+", server.VERSION, major, minor, update)
}
func TestServersOption(t *testing.T) {
opts := nats.GetDefaultOptions()
opts.NoRandomize = true
@ -604,3 +631,230 @@ func TestPingReconnect(t *testing.T) {
}
}
}
type checkPoolUpdatedDialer struct {
conn net.Conn
first, final bool
ra int
}
func (d *checkPoolUpdatedDialer) Dial(network, address string) (net.Conn, error) {
doReal := false
if d.first {
d.first = false
doReal = true
} else if d.final {
d.ra++
return nil, fmt.Errorf("On purpose")
} else {
d.ra++
if d.ra == 15 {
d.ra = 0
doReal = true
}
}
if doReal {
c, err := net.Dial(network, address)
if err != nil {
return nil, err
}
d.conn = c
return c, nil
}
return nil, fmt.Errorf("On purpose")
}
func TestServerPoolUpdatedWhenRouteGoesAway(t *testing.T) {
if err := serverVersionAtLeast(1, 0, 7); err != nil {
t.Skipf(err.Error())
}
s1Opts := test.DefaultTestOptions
s1Opts.Host = "127.0.0.1"
s1Opts.Port = 4222
s1Opts.Cluster.Host = "127.0.0.1"
s1Opts.Cluster.Port = 6222
s1Opts.Routes = server.RoutesFromStr("nats://127.0.0.1:6223,nats://127.0.0.1:6224")
s1 := test.RunServer(&s1Opts)
defer s1.Shutdown()
s1Url := "nats://127.0.0.1:4222"
s2Url := "nats://127.0.0.1:4223"
s3Url := "nats://127.0.0.1:4224"
ch := make(chan bool, 1)
chch := make(chan bool, 1)
connHandler := func(_ *nats.Conn) {
chch <- true
}
nc, err := nats.Connect(s1Url,
nats.ReconnectHandler(connHandler),
nats.DiscoveredServersHandler(func(_ *nats.Conn) {
ch <- true
}))
if err != nil {
t.Fatalf("Error on connect")
}
s2Opts := test.DefaultTestOptions
s2Opts.Host = "127.0.0.1"
s2Opts.Port = s1Opts.Port + 1
s2Opts.Cluster.Host = "127.0.0.1"
s2Opts.Cluster.Port = 6223
s2Opts.Routes = server.RoutesFromStr("nats://127.0.0.1:6222,nats://127.0.0.1:6224")
s2 := test.RunServer(&s2Opts)
defer s2.Shutdown()
// Wait to be notified
if err := Wait(ch); err != nil {
t.Fatal("New server callback was not invoked")
}
checkPool := func(expected []string) {
// Don't use discovered here, but Servers to have the full list.
// Also, there may be cases where the mesh is not formed yet,
// so try again on failure.
var (
ds []string
timeout = time.Now().Add(5 * time.Second)
)
for time.Now().Before(timeout) {
ds = nc.Servers()
if len(ds) == len(expected) {
m := make(map[string]struct{}, len(ds))
for _, url := range ds {
m[url] = struct{}{}
}
ok := true
for _, url := range expected {
if _, present := m[url]; !present {
ok = false
break
}
}
if ok {
return
}
}
time.Sleep(50 * time.Millisecond)
}
stackFatalf(t, "Expected %v, got %v", expected, ds)
}
// Verify that we now know about s2
checkPool([]string{s1Url, s2Url})
s3Opts := test.DefaultTestOptions
s3Opts.Host = "127.0.0.1"
s3Opts.Port = s2Opts.Port + 1
s3Opts.Cluster.Host = "127.0.0.1"
s3Opts.Cluster.Port = 6224
s3Opts.Routes = server.RoutesFromStr("nats://127.0.0.1:6222,nats://127.0.0.1:6223")
s3 := test.RunServer(&s3Opts)
defer s3.Shutdown()
// Wait to be notified
if err := Wait(ch); err != nil {
t.Fatal("New server callback was not invoked")
}
// Verify that we now know about s3
checkPool([]string{s1Url, s2Url, s3Url})
// Stop s1. Since this was passed to the Connect() call, this one should
// still be present.
s1.Shutdown()
// Wait for reconnect
if err := Wait(chch); err != nil {
t.Fatal("Reconnect handler not invoked")
}
checkPool([]string{s1Url, s2Url, s3Url})
// Check the server we reconnected to.
reConnectedTo := nc.ConnectedUrl()
expected := []string{s1Url}
restartS2 := false
if reConnectedTo == s2Url {
restartS2 = true
s2.Shutdown()
expected = append(expected, s3Url)
} else if reConnectedTo == s3Url {
s3.Shutdown()
expected = append(expected, s2Url)
} else {
t.Fatalf("Unexpected server client has reconnected to: %v", reConnectedTo)
}
// Wait for reconnect
if err := Wait(chch); err != nil {
t.Fatal("Reconnect handler not invoked")
}
// The implicit server that we just shutdown should have been removed from the pool
checkPool(expected)
// Restart the one that was shutdown and check that it is now back in the pool
if restartS2 {
s2 = test.RunServer(&s2Opts)
defer s2.Shutdown()
expected = append(expected, s2Url)
} else {
s3 = test.RunServer(&s3Opts)
defer s3.Shutdown()
expected = append(expected, s3Url)
}
// Since this is not a "new" server, the DiscoveredServersCB won't be invoked.
checkPool(expected)
nc.Close()
// Restart s1
s1 = test.RunServer(&s1Opts)
defer s1.Shutdown()
// We should have all 3 servers running now...
// Create a client connection with special dialer.
d := &checkPoolUpdatedDialer{first: true}
nc, err = nats.Connect(s1Url,
nats.MaxReconnects(10),
nats.ReconnectWait(15*time.Millisecond),
nats.SetCustomDialer(d),
nats.ReconnectHandler(connHandler),
nats.ClosedHandler(connHandler))
if err != nil {
t.Fatalf("Error on connect")
}
defer nc.Close()
// Make sure that we have all 3 servers in the pool (this will wait if required)
checkPool(expected)
// Cause disconnection between client and server. We are going to reconnect
// and we want to check that when we get the INFO again with the list of
// servers, we don't lose the knowledge of how many times we tried to
// reconnect.
d.conn.Close()
// Wait for client to reconnect to a server
if err := Wait(chch); err != nil {
t.Fatal("Reconnect handler not invoked")
}
// At this point, we should have tried to reconnect 5 times to each server.
// For the one we reconnected to, its max reconnect attempts should have been
// cleared, not for the other ones.
// Cause a disconnect again and ensure we won't reconnect.
d.final = true
d.conn.Close()
// Wait for Close callback to be invoked.
if err := Wait(chch); err != nil {
t.Fatal("Close handler not invoked")
}
// Since MaxReconnect is 10, after trying 5 more times on 2 of the servers,
// these should have been removed. We have still 5 more tries for the server
// we did previously reconnect to.
// So total of reconnect attempt should be: 2*5+1*10=20
if d.ra != 20 {
t.Fatalf("Should have tried to reconnect 20 more times, got %v", d.ra)
}
nc.Close()
}

1
gateway/vendor/github.com/nats-io/go-nats/test/configs/tls.conf generated vendored
View File

@ -1,4 +1,3 @@
# Simple TLS config file
port: 4443

3
gateway/vendor/github.com/nats-io/go-nats/test/configs/tlsverify.conf generated vendored
View File

@ -1,4 +1,3 @@
# Simple TLS config file
port: 4443
@ -11,7 +10,7 @@ tls {
# Optional certificate authority for clients
ca_file: "./configs/certs/ca.pem"
# Require a client certificate
verify: true
}

418
gateway/vendor/github.com/nats-io/go-nats/test/conn_test.go generated vendored
View File

@ -1,3 +1,16 @@
// Copyright 2012-2018 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.
package test
import (
@ -11,6 +24,7 @@ import (
"runtime"
"strconv"
"strings"
"sync"
"sync/atomic"
"testing"
"time"
@ -701,6 +715,7 @@ func TestCallbacksOrder(t *testing.T) {
nats.ErrorHandler(ech),
nats.ReconnectWait(50*time.Millisecond),
nats.DontRandomize())
if err != nil {
t.Fatalf("Unable to connect: %v\n", err)
}
@ -1476,12 +1491,16 @@ func TestCustomFlusherTimeout(t *testing.T) {
func TestNewServers(t *testing.T) {
s1Opts := test.DefaultTestOptions
s1Opts.Host = "127.0.0.1"
s1Opts.Port = 4222
s1Opts.Cluster.Host = "localhost"
s1Opts.Cluster.Port = 6222
s1 := test.RunServer(&s1Opts)
defer s1.Shutdown()
s2Opts := test.DefaultTestOptions
s2Opts.Host = "127.0.0.1"
s2Opts.Port = 4223
s2Opts.Port = s1Opts.Port + 1
s2Opts.Cluster.Host = "localhost"
s2Opts.Cluster.Port = 6223
@ -1525,6 +1544,8 @@ func TestNewServers(t *testing.T) {
// Start a new server.
s3Opts := test.DefaultTestOptions
s1Opts.Host = "127.0.0.1"
s1Opts.Port = 4224
s3Opts.Port = s2Opts.Port + 1
s3Opts.Cluster.Host = "localhost"
s3Opts.Cluster.Port = 6224
@ -1543,3 +1564,400 @@ func TestNewServers(t *testing.T) {
t.Fatal("Did not get our callback")
}
}
func TestBarrier(t *testing.T) {
s := RunDefaultServer()
defer s.Shutdown()
nc := NewDefaultConnection(t)
defer nc.Close()
pubMsgs := int32(0)
ch := make(chan bool, 1)
sub1, err := nc.Subscribe("pub", func(_ *nats.Msg) {
atomic.AddInt32(&pubMsgs, 1)
time.Sleep(250 * time.Millisecond)
})
if err != nil {
t.Fatalf("Error on subscribe: %v", err)
}
sub2, err := nc.Subscribe("close", func(_ *nats.Msg) {
// The "close" message was sent/received lat, but
// because we are dealing with different subscriptions,
// which are dispatched by different dispatchers, and
// because the "pub" subscription is delayed, this
// callback is likely to be invoked before the sub1's
// second callback is invoked. Using the Barrier call
// here will ensure that the given function will be invoked
// after the preceding messages have been dispatched.
nc.Barrier(func() {
res := atomic.LoadInt32(&pubMsgs) == 2
ch <- res
})
})
if err != nil {
t.Fatalf("Error on subscribe: %v", err)
}
// Send 2 "pub" messages followed by a "close" message
for i := 0; i < 2; i++ {
if err := nc.Publish("pub", []byte("pub msg")); err != nil {
t.Fatalf("Error on publish: %v", err)
}
}
if err := nc.Publish("close", []byte("closing")); err != nil {
t.Fatalf("Error on publish: %v", err)
}
select {
case ok := <-ch:
if !ok {
t.Fatal("The barrier function was invoked before the second message")
}
case <-time.After(2 * time.Second):
t.Fatal("Waited for too long...")
}
// Remove all subs
sub1.Unsubscribe()
sub2.Unsubscribe()
// Barrier should be invoked in place. Since we use buffered channel
// we are ok.
nc.Barrier(func() { ch <- true })
if err := Wait(ch); err != nil {
t.Fatal("Barrier function was not invoked")
}
if _, err := nc.Subscribe("foo", func(m *nats.Msg) {
// To check that the Barrier() function works if the subscription
// is unsubscribed after the call was made, sleep a bit here.
time.Sleep(250 * time.Millisecond)
m.Sub.Unsubscribe()
}); err != nil {
t.Fatalf("Error on subscribe: %v", err)
}
if err := nc.Publish("foo", []byte("hello")); err != nil {
t.Fatalf("Error on publish: %v", err)
}
// We need to Flush here to make sure that message has been received
// and posted to subscription's internal queue before calling Barrier.
if err := nc.Flush(); err != nil {
t.Fatalf("Error on flush: %v", err)
}
nc.Barrier(func() { ch <- true })
if err := Wait(ch); err != nil {
t.Fatal("Barrier function was not invoked")
}
// Test with AutoUnsubscribe now...
sub1, err = nc.Subscribe("foo", func(m *nats.Msg) {
// Since we auto-unsubscribe with 1, there should not be another
// invocation of this callback, but the Barrier should still be
// invoked.
nc.Barrier(func() { ch <- true })
})
if err != nil {
t.Fatalf("Error on subscribe: %v", err)
}
sub1.AutoUnsubscribe(1)
// Send 2 messages and flush
for i := 0; i < 2; i++ {
if err := nc.Publish("foo", []byte("hello")); err != nil {
t.Fatalf("Error on publish: %v", err)
}
}
if err := nc.Flush(); err != nil {
t.Fatalf("Error on flush: %v", err)
}
// Check barrier was invoked
if err := Wait(ch); err != nil {
t.Fatal("Barrier function was not invoked")
}
// Check that Barrier only affects asynchronous subscriptions
sub1, err = nc.Subscribe("foo", func(m *nats.Msg) {
nc.Barrier(func() { ch <- true })
})
if err != nil {
t.Fatalf("Error on subscribe: %v", err)
}
syncSub, err := nc.SubscribeSync("foo")
if err != nil {
t.Fatalf("Error on subscribe: %v", err)
}
msgChan := make(chan *nats.Msg, 1)
chanSub, err := nc.ChanSubscribe("foo", msgChan)
if err != nil {
t.Fatalf("Error on subscribe: %v", err)
}
if err := nc.Publish("foo", []byte("hello")); err != nil {
t.Fatalf("Error on publish: %v", err)
}
if err := nc.Flush(); err != nil {
t.Fatalf("Error on flush: %v", err)
}
// Check barrier was invoked even if we did not yet consume
// from the 2 other type of subscriptions
if err := Wait(ch); err != nil {
t.Fatal("Barrier function was not invoked")
}
if _, err := syncSub.NextMsg(time.Second); err != nil {
t.Fatalf("Sync sub did not receive the message")
}
select {
case <-msgChan:
case <-time.After(time.Second):
t.Fatal("Chan sub did not receive the message")
}
chanSub.Unsubscribe()
syncSub.Unsubscribe()
sub1.Unsubscribe()
atomic.StoreInt32(&pubMsgs, 0)
// Check barrier does not prevent new messages to be delivered.
sub1, err = nc.Subscribe("foo", func(_ *nats.Msg) {
if pm := atomic.AddInt32(&pubMsgs, 1); pm == 1 {
nc.Barrier(func() {
nc.Publish("foo", []byte("second"))
nc.Flush()
})
} else if pm == 2 {
ch <- true
}
})
if err != nil {
t.Fatalf("Error on subscribe: %v", err)
}
if err := nc.Publish("foo", []byte("first")); err != nil {
t.Fatalf("Error on publish: %v", err)
}
if err := Wait(ch); err != nil {
t.Fatal("Barrier function was not invoked")
}
sub1.Unsubscribe()
// Check that barrier works if called before connection
// is closed.
if _, err := nc.Subscribe("bar", func(_ *nats.Msg) {
nc.Barrier(func() { ch <- true })
nc.Close()
}); err != nil {
t.Fatalf("Error on subscribe: %v", err)
}
if err := nc.Publish("bar", []byte("hello")); err != nil {
t.Fatalf("Error on publish: %v", err)
}
if err := nc.Flush(); err != nil {
t.Fatalf("Error on flush: %v", err)
}
if err := Wait(ch); err != nil {
t.Fatal("Barrier function was not invoked")
}
// Finally, check that if connection is closed, Barrier returns
// an error.
if err := nc.Barrier(func() { ch <- true }); err != nats.ErrConnectionClosed {
t.Fatalf("Expected error %v, got %v", nats.ErrConnectionClosed, err)
}
// Check that one can call connection methods from Barrier
// when there is no async subscriptions
nc = NewDefaultConnection(t)
defer nc.Close()
if err := nc.Barrier(func() {
ch <- nc.TLSRequired()
}); err != nil {
t.Fatalf("Error on Barrier: %v", err)
}
if err := Wait(ch); err != nil {
t.Fatal("Barrier was blocked")
}
}
func TestReceiveInfoRightAfterFirstPong(t *testing.T) {
l, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
t.Fatalf("Error on listen: %v", err)
}
tl := l.(*net.TCPListener)
defer tl.Close()
addr := tl.Addr().(*net.TCPAddr)
wg := sync.WaitGroup{}
wg.Add(1)
go func() {
defer wg.Done()
c, err := tl.Accept()
if err != nil {
return
}
defer c.Close()
// Send the initial INFO
c.Write([]byte("INFO {}\r\n"))
buf := make([]byte, 0, 100)
b := make([]byte, 100)
for {
n, err := c.Read(b)
if err != nil {
return
}
buf = append(buf, b[:n]...)
if bytes.Contains(buf, []byte("PING\r\n")) {
break
}
}
// Send PONG and following INFO in one go (or at least try).
// The processing of PONG in sendConnect() should leave the
// rest for the readLoop to process.
c.Write([]byte(fmt.Sprintf("PONG\r\nINFO {\"connect_urls\":[\"127.0.0.1:%d\", \"me:1\"]}\r\n", addr.Port)))
// Wait for client to disconnect
for {
if _, err := c.Read(buf); err != nil {
return
}
}
}()
nc, err := nats.Connect(fmt.Sprintf("nats://127.0.0.1:%d", addr.Port))
if err != nil {
t.Fatalf("Error on connect: %v", err)
}
defer nc.Close()
var (
ds []string
timeout = time.Now().Add(2 * time.Second)
ok = false
)
for time.Now().Before(timeout) {
ds = nc.DiscoveredServers()
if len(ds) == 1 && ds[0] == "nats://me:1" {
ok = true
break
}
time.Sleep(50 * time.Millisecond)
}
nc.Close()
wg.Wait()
if !ok {
t.Fatalf("Unexpected discovered servers: %v", ds)
}
}
func TestReceiveInfoWithEmptyConnectURLs(t *testing.T) {
ready := make(chan bool, 2)
ch := make(chan bool, 1)
wg := sync.WaitGroup{}
wg.Add(1)
go func() {
defer wg.Done()
ports := []int{4222, 4223}
for i := 0; i < 2; i++ {
l, err := net.Listen("tcp", fmt.Sprintf("127.0.0.1:%d", ports[i]))
if err != nil {
t.Fatalf("Error on listen: %v", err)
}
tl := l.(*net.TCPListener)
defer tl.Close()
ready <- true
c, err := tl.Accept()
if err != nil {
return
}
defer c.Close()
// Send the initial INFO
c.Write([]byte(fmt.Sprintf("INFO {\"server_id\":\"server%d\"}\r\n", (i + 1))))
buf := make([]byte, 0, 100)
b := make([]byte, 100)
for {
n, err := c.Read(b)
if err != nil {
return
}
buf = append(buf, b[:n]...)
if bytes.Contains(buf, []byte("PING\r\n")) {
break
}
}
if i == 0 {
// Send PONG and following INFO in one go (or at least try).
// The processing of PONG in sendConnect() should leave the
// rest for the readLoop to process.
c.Write([]byte("PONG\r\nINFO {\"server_id\":\"server1\",\"connect_urls\":[\"127.0.0.1:4222\", \"127.0.0.1:4223\", \"127.0.0.1:4224\"]}\r\n"))
// Wait for the notication
<-ch
// Close the connection in our side and go back into accept
c.Close()
} else {
// Send no connect ULRs (as if this was an older server that could in some cases
// send an empty array)
c.Write([]byte(fmt.Sprintf("PONG\r\nINFO {\"server_id\":\"server2\"}\r\n")))
// Wait for client to disconnect
for {
if _, err := c.Read(buf); err != nil {
return
}
}
}
}
}()
// Wait for listener to be up and running
if err := Wait(ready); err != nil {
t.Fatal("Listener not ready")
}
rch := make(chan bool)
nc, err := nats.Connect("nats://127.0.0.1:4222",
nats.ReconnectWait(50*time.Millisecond),
nats.ReconnectHandler(func(_ *nats.Conn) {
rch <- true
}))
if err != nil {
t.Fatalf("Error on connect: %v", err)
}
defer nc.Close()
var (
ds []string
timeout = time.Now().Add(2 * time.Second)
ok = false
)
for time.Now().Before(timeout) {
ds = nc.DiscoveredServers()
if len(ds) == 2 {
if (ds[0] == "nats://127.0.0.1:4223" && ds[1] == "nats://127.0.0.1:4224") ||
(ds[0] == "nats://127.0.0.1:4224" && ds[1] == "nats://127.0.0.1:4223") {
ok = true
break
}
}
time.Sleep(50 * time.Millisecond)
}
if !ok {
t.Fatalf("Unexpected discovered servers: %v", ds)
}
// Make the server close our connection
ch <- true
// Wait for the reconnect
if err := Wait(rch); err != nil {
t.Fatal("Did not reconnect")
}
// Discovered servers should still contain nats://me:1
ds = nc.DiscoveredServers()
if len(ds) != 2 ||
!((ds[0] == "nats://127.0.0.1:4223" && ds[1] == "nats://127.0.0.1:4224") ||
(ds[0] == "nats://127.0.0.1:4224" && ds[1] == "nats://127.0.0.1:4223")) {
t.Fatalf("Unexpected discovered servers list: %v", ds)
}
nc.Close()
wg.Wait()
}

13
gateway/vendor/github.com/nats-io/go-nats/test/context_test.go generated vendored
View File

@ -1,4 +1,15 @@
// Copyright 2012-2017 Apcera Inc. All rights reserved.
// Copyright 2012-2018 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.
// +build go1.7

13
gateway/vendor/github.com/nats-io/go-nats/test/enc_test.go generated vendored
View File

@ -1,4 +1,15 @@
// Copyright 2012-2017 Apcera Inc. All rights reserved.
// Copyright 2012-2018 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.
package test

13
gateway/vendor/github.com/nats-io/go-nats/test/gob_test.go generated vendored
View File

@ -1,4 +1,15 @@
// Copyright 2012-2017 Apcera Inc. All rights reserved.
// Copyright 2012-2018 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.
package test

32
gateway/vendor/github.com/nats-io/go-nats/test/helper_test.go generated vendored
View File

@ -1,10 +1,23 @@
// Copyright 2015 Apcera Inc. All rights reserved.
// Copyright 2015-2018 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.
package test
import (
"errors"
"fmt"
"runtime"
"strings"
"time"
"github.com/nats-io/gnatsd/server"
@ -37,6 +50,23 @@ func WaitTime(ch chan bool, timeout time.Duration) error {
return errors.New("timeout")
}
func stackFatalf(t tLogger, f string, args ...interface{}) {
lines := make([]string, 0, 32)
msg := fmt.Sprintf(f, args...)
lines = append(lines, msg)
// Generate the Stack of callers: Skip us and verify* frames.
for i := 1; true; i++ {
_, file, line, ok := runtime.Caller(i)
if !ok {
break
}
msg := fmt.Sprintf("%d - %s:%d", i, file, line)
lines = append(lines, msg)
}
t.Fatalf("%s", strings.Join(lines, "\n"))
}
////////////////////////////////////////////////////////////////////////////////
// Creating client connections
////////////////////////////////////////////////////////////////////////////////

13
gateway/vendor/github.com/nats-io/go-nats/test/json_test.go generated vendored
View File

@ -1,4 +1,15 @@
// Copyright 2012-2017 Apcera Inc. All rights reserved.
// Copyright 2012-2018 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.
package test

13
gateway/vendor/github.com/nats-io/go-nats/test/main.go generated vendored
View File

@ -1,4 +1,15 @@
// Copyright 2017 Apcera Inc. All rights reserved.
// Copyright 2017-2018 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.
package test

13
gateway/vendor/github.com/nats-io/go-nats/test/netchan_test.go generated vendored
View File

@ -1,3 +1,16 @@
// Copyright 2013-2018 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.
package test
import (

13
gateway/vendor/github.com/nats-io/go-nats/test/protobuf_test.go generated vendored
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@ -1,3 +1,16 @@
// Copyright 2015-2018 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.
package test
import (

28
gateway/vendor/github.com/nats-io/go-nats/test/reconnect_test.go generated vendored
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@ -1,3 +1,16 @@
// Copyright 2013-2018 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.
package test
import (
@ -576,6 +589,21 @@ func TestReconnectVerbose(t *testing.T) {
}
}
func TestReconnectBufSizeOption(t *testing.T) {
s := RunDefaultServer()
defer s.Shutdown()
nc, err := nats.Connect("nats://localhost:4222", nats.ReconnectBufSize(32))
if err != nil {
t.Fatalf("Should have connected ok: %v", err)
}
defer nc.Close()
if nc.Opts.ReconnectBufSize != 32 {
t.Fatalf("ReconnectBufSize should be 32 but it is %d", nc.Opts.ReconnectBufSize)
}
}
func TestReconnectBufSize(t *testing.T) {
s := RunDefaultServer()
defer s.Shutdown()

13
gateway/vendor/github.com/nats-io/go-nats/test/sub_test.go generated vendored
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@ -1,3 +1,16 @@
// Copyright 2013-2018 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.
package test
import (

13
gateway/vendor/github.com/nats-io/go-nats/timer.go generated vendored
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@ -1,3 +1,16 @@
// Copyright 2017-2018 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.
package nats
import (

13
gateway/vendor/github.com/nats-io/go-nats/timer_test.go generated vendored
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@ -1,3 +1,16 @@
// Copyright 2017-2018 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.
package nats
import (

14
gateway/vendor/github.com/nats-io/go-nats/util/tls.go generated vendored
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@ -1,4 +1,16 @@
// Copyright 2017 Apcera Inc. All rights reserved.
// Copyright 2017-2018 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.
// +build go1.8
package util

14
gateway/vendor/github.com/nats-io/go-nats/util/tls_go17.go generated vendored
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@ -1,4 +1,16 @@
// Copyright 2016 Apcera Inc. All rights reserved.
// Copyright 2016-2018 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.
// +build go1.7,!go1.8
package util