8 files changed, 397 insertions, 0 deletions
diff --git a/vendor/github.com/pion/logging/.golangci.yml b/vendor/github.com/pion/logging/.golangci.yml
new file mode 100644
index 0000000..ffb0058
--- /dev/null
+++ b/vendor/github.com/pion/logging/.golangci.yml
@@ -0,0 +1,13 @@
+linters-settings:
+  govet:
+    check-shadowing: true
+  misspell:
+    locale: US
+
+linters:
+  enable-all: true
+
+issues:
+  exclude-use-default: false
+  max-per-linter: 0
+  max-same-issues: 50
diff --git a/vendor/github.com/pion/logging/.travis.yml b/vendor/github.com/pion/logging/.travis.yml
new file mode 100644
index 0000000..b96a1ed
--- /dev/null
+++ b/vendor/github.com/pion/logging/.travis.yml
@@ -0,0 +1,19 @@
+language: go
+
+go:
+  - "1.x" # use the latest Go release
+
+env:
+  - GO111MODULE=on
+
+before_script:
+  - curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | bash -s -- -b $GOPATH/bin v1.15.0
+
+script:
+  - golangci-lint run ./...
+#  - rm -rf examples # Remove examples, no test coverage for them
+  - go test -coverpkg=$(go list ./... | tr '\n' ',') -coverprofile=cover.out -v -race -covermode=atomic ./...
+  - bash <(curl -s https://codecov.io/bash)
+  - bash .github/assert-contributors.sh
+  - bash .github/lint-disallowed-functions-in-library.sh
+  - bash .github/lint-commit-message.sh
diff --git a/vendor/github.com/pion/logging/LICENSE b/vendor/github.com/pion/logging/LICENSE
new file mode 100644
index 0000000..ab60297
--- /dev/null
+++ b/vendor/github.com/pion/logging/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2018 
+
+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.
diff --git a/vendor/github.com/pion/logging/README.md b/vendor/github.com/pion/logging/README.md
new file mode 100644
index 0000000..c15471d
--- /dev/null
+++ b/vendor/github.com/pion/logging/README.md
@@ -0,0 +1,41 @@
+<h1 align="center">
+  <br>
+  Pion Logging
+  <br>
+</h1>
+<h4 align="center">The Pion logging library</h4>
+<p align="center">
+  <a href="https://pion.ly"><img src="https://img.shields.io/badge/pion-logging-gray.svg?longCache=true&colorB=brightgreen" alt="Pion transport"></a>
+  <a href="http://gophers.slack.com/messages/pion"><img src="https://img.shields.io/badge/join-us%20on%20slack-gray.svg?longCache=true&logo=slack&colorB=brightgreen" alt="Slack Widget"></a>
+  <br>
+  <a href="https://travis-ci.org/pion/logging"><img src="https://travis-ci.org/pion/logging.svg?branch=master" alt="Build Status"></a>
+  <a href="https://godoc.org/github.com/pion/logging"><img src="https://godoc.org/github.com/pion/logging?status.svg" alt="GoDoc"></a>
+  <a href="https://codecov.io/gh/pion/logging"><img src="https://codecov.io/gh/pion/logging/branch/master/graph/badge.svg" alt="Coverage Status"></a>
+  <a href="https://goreportcard.com/report/github.com/pion/logging"><img src="https://goreportcard.com/badge/github.com/pion/logging" alt="Go Report Card"></a>
+  <a href="LICENSE"><img src="https://img.shields.io/badge/License-MIT-yellow.svg" alt="License: MIT"></a>
+</p>
+<br>
+
+### Roadmap
+The library is used as a part of our WebRTC implementation. Please refer to that [roadmap](https://github.com/pion/webrtc/issues/9) to track our major milestones.
+
+### Community
+Pion has an active community on the [Golang Slack](https://invite.slack.golangbridge.org/). Sign up and join the **#pion** channel for discussions and support. You can also use [Pion mailing list](https://groups.google.com/forum/#!forum/pion).
+
+We are always looking to support **your projects**. Please reach out if you have something to build!
+
+If you need commercial support or don't want to use public methods you can contact us at [team@pion.ly](mailto:team@pion.ly)
+
+### Contributing
+Check out the **[contributing wiki](https://github.com/pion/webrtc/wiki/Contributing)** to join the group of amazing people making this project possible:
+
+* [John Bradley](https://github.com/kc5nra) - *Original Author*
+* [Sean DuBois](https://github.com/Sean-Der) - *Original Author*
+* [Michael MacDonald](https://github.com/mjmac) - *Original Author*
+* [Woodrow Douglass](https://github.com/wdouglass) - *Test coverage*
+* [Michiel De Backker](https://github.com/backkem) - *Docs*
+* [Hugo Arregui](https://github.com/hugoArregui) - *Custom Logs*
+* [Justin Okamoto](https://github.com/justinokamoto) - *Disabled Logs Update*
+
+### License
+MIT License - see [LICENSE](LICENSE) for full text
diff --git a/vendor/github.com/pion/logging/go.mod b/vendor/github.com/pion/logging/go.mod
new file mode 100644
index 0000000..a1b849b
--- /dev/null
+++ b/vendor/github.com/pion/logging/go.mod
@@ -0,0 +1,3 @@
+module github.com/pion/logging
+
+go 1.12
diff --git a/vendor/github.com/pion/logging/go.sum b/vendor/github.com/pion/logging/go.sum
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/vendor/github.com/pion/logging/go.sum
diff --git a/vendor/github.com/pion/logging/logger.go b/vendor/github.com/pion/logging/logger.go
new file mode 100644
index 0000000..35f6505
--- /dev/null
+++ b/vendor/github.com/pion/logging/logger.go
@@ -0,0 +1,228 @@
+package logging
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"os"
+	"strings"
+	"sync"
+)
+
+// Use this abstraction to ensure thread-safe access to the logger's io.Writer
+// (which could change at runtime)
+type loggerWriter struct {
+	sync.RWMutex
+	output io.Writer
+}
+
+func (lw *loggerWriter) SetOutput(output io.Writer) {
+	lw.Lock()
+	defer lw.Unlock()
+	lw.output = output
+}
+
+func (lw *loggerWriter) Write(data []byte) (int, error) {
+	lw.RLock()
+	defer lw.RUnlock()
+	return lw.output.Write(data)
+}
+
+// DefaultLeveledLogger encapsulates functionality for providing logging at
+// user-defined levels
+type DefaultLeveledLogger struct {
+	level  LogLevel
+	writer *loggerWriter
+	trace  *log.Logger
+	debug  *log.Logger
+	info   *log.Logger
+	warn   *log.Logger
+	err    *log.Logger
+}
+
+// WithTraceLogger is a chainable configuration function which sets the
+// Trace-level logger
+func (ll *DefaultLeveledLogger) WithTraceLogger(log *log.Logger) *DefaultLeveledLogger {
+	ll.trace = log
+	return ll
+}
+
+// WithDebugLogger is a chainable configuration function which sets the
+// Debug-level logger
+func (ll *DefaultLeveledLogger) WithDebugLogger(log *log.Logger) *DefaultLeveledLogger {
+	ll.debug = log
+	return ll
+}
+
+// WithInfoLogger is a chainable configuration function which sets the
+// Info-level logger
+func (ll *DefaultLeveledLogger) WithInfoLogger(log *log.Logger) *DefaultLeveledLogger {
+	ll.info = log
+	return ll
+}
+
+// WithWarnLogger is a chainable configuration function which sets the
+// Warn-level logger
+func (ll *DefaultLeveledLogger) WithWarnLogger(log *log.Logger) *DefaultLeveledLogger {
+	ll.warn = log
+	return ll
+}
+
+// WithErrorLogger is a chainable configuration function which sets the
+// Error-level logger
+func (ll *DefaultLeveledLogger) WithErrorLogger(log *log.Logger) *DefaultLeveledLogger {
+	ll.err = log
+	return ll
+}
+
+// WithOutput is a chainable configuration function which sets the logger's
+// logging output to the supplied io.Writer
+func (ll *DefaultLeveledLogger) WithOutput(output io.Writer) *DefaultLeveledLogger {
+	ll.writer.SetOutput(output)
+	return ll
+}
+
+func (ll *DefaultLeveledLogger) logf(logger *log.Logger, level LogLevel, format string, args ...interface{}) {
+	if ll.level.Get() < level {
+		return
+	}
+
+	callDepth := 3 // this frame + wrapper func + caller
+	msg := fmt.Sprintf(format, args...)
+	if err := logger.Output(callDepth, msg); err != nil {
+		fmt.Fprintf(os.Stderr, "Unable to log: %s", err)
+	}
+}
+
+// SetLevel sets the logger's logging level
+func (ll *DefaultLeveledLogger) SetLevel(newLevel LogLevel) {
+	ll.level.Set(newLevel)
+}
+
+// Trace emits the preformatted message if the logger is at or below LogLevelTrace
+func (ll *DefaultLeveledLogger) Trace(msg string) {
+	ll.logf(ll.trace, LogLevelTrace, msg)
+}
+
+// Tracef formats and emits a message if the logger is at or below LogLevelTrace
+func (ll *DefaultLeveledLogger) Tracef(format string, args ...interface{}) {
+	ll.logf(ll.trace, LogLevelTrace, format, args...)
+}
+
+// Debug emits the preformatted message if the logger is at or below LogLevelDebug
+func (ll *DefaultLeveledLogger) Debug(msg string) {
+	ll.logf(ll.debug, LogLevelDebug, msg)
+}
+
+// Debugf formats and emits a message if the logger is at or below LogLevelDebug
+func (ll *DefaultLeveledLogger) Debugf(format string, args ...interface{}) {
+	ll.logf(ll.debug, LogLevelDebug, format, args...)
+}
+
+// Info emits the preformatted message if the logger is at or below LogLevelInfo
+func (ll *DefaultLeveledLogger) Info(msg string) {
+	ll.logf(ll.info, LogLevelInfo, msg)
+}
+
+// Infof formats and emits a message if the logger is at or below LogLevelInfo
+func (ll *DefaultLeveledLogger) Infof(format string, args ...interface{}) {
+	ll.logf(ll.info, LogLevelInfo, format, args...)
+}
+
+// Warn emits the preformatted message if the logger is at or below LogLevelWarn
+func (ll *DefaultLeveledLogger) Warn(msg string) {
+	ll.logf(ll.warn, LogLevelWarn, msg)
+}
+
+// Warnf formats and emits a message if the logger is at or below LogLevelWarn
+func (ll *DefaultLeveledLogger) Warnf(format string, args ...interface{}) {
+	ll.logf(ll.warn, LogLevelWarn, format, args...)
+}
+
+// Error emits the preformatted message if the logger is at or below LogLevelError
+func (ll *DefaultLeveledLogger) Error(msg string) {
+	ll.logf(ll.err, LogLevelError, msg)
+}
+
+// Errorf formats and emits a message if the logger is at or below LogLevelError
+func (ll *DefaultLeveledLogger) Errorf(format string, args ...interface{}) {
+	ll.logf(ll.err, LogLevelError, format, args...)
+}
+
+// NewDefaultLeveledLoggerForScope returns a configured LeveledLogger
+func NewDefaultLeveledLoggerForScope(scope string, level LogLevel, writer io.Writer) *DefaultLeveledLogger {
+	if writer == nil {
+		writer = os.Stdout
+	}
+	logger := &DefaultLeveledLogger{
+		writer: &loggerWriter{output: writer},
+		level:  level,
+	}
+	return logger.
+		WithTraceLogger(log.New(logger.writer, fmt.Sprintf("%s TRACE: ", scope), log.Lmicroseconds|log.Lshortfile)).
+		WithDebugLogger(log.New(logger.writer, fmt.Sprintf("%s DEBUG: ", scope), log.Lmicroseconds|log.Lshortfile)).
+		WithInfoLogger(log.New(logger.writer, fmt.Sprintf("%s INFO: ", scope), log.LstdFlags)).
+		WithWarnLogger(log.New(logger.writer, fmt.Sprintf("%s WARNING: ", scope), log.LstdFlags)).
+		WithErrorLogger(log.New(logger.writer, fmt.Sprintf("%s ERROR: ", scope), log.LstdFlags))
+}
+
+// DefaultLoggerFactory define levels by scopes and creates new DefaultLeveledLogger
+type DefaultLoggerFactory struct {
+	Writer          io.Writer
+	DefaultLogLevel LogLevel
+	ScopeLevels     map[string]LogLevel
+}
+
+// NewDefaultLoggerFactory creates a new DefaultLoggerFactory
+func NewDefaultLoggerFactory() *DefaultLoggerFactory {
+	factory := DefaultLoggerFactory{}
+	factory.DefaultLogLevel = LogLevelError
+	factory.ScopeLevels = make(map[string]LogLevel)
+	factory.Writer = os.Stdout
+
+	logLevels := map[string]LogLevel{
+		"DISABLE": LogLevelDisabled,
+		"ERROR":   LogLevelError,
+		"WARN":    LogLevelWarn,
+		"INFO":    LogLevelInfo,
+		"DEBUG":   LogLevelDebug,
+		"TRACE":   LogLevelTrace,
+	}
+
+	for name, level := range logLevels {
+		env := os.Getenv(fmt.Sprintf("PION_LOG_%s", name))
+
+		if env == "" {
+			env = os.Getenv(fmt.Sprintf("PIONS_LOG_%s", name))
+		}
+
+		if env == "" {
+			continue
+		}
+
+		if strings.ToLower(env) == "all" {
+			factory.DefaultLogLevel = level
+			continue
+		}
+
+		scopes := strings.Split(strings.ToLower(env), ",")
+		for _, scope := range scopes {
+			factory.ScopeLevels[scope] = level
+		}
+	}
+
+	return &factory
+}
+
+// NewLogger returns a configured LeveledLogger for the given , argsscope
+func (f *DefaultLoggerFactory) NewLogger(scope string) LeveledLogger {
+	logLevel := f.DefaultLogLevel
+	if f.ScopeLevels != nil {
+		scopeLevel, found := f.ScopeLevels[scope]
+
+		if found {
+			logLevel = scopeLevel
+		}
+	}
+	return NewDefaultLeveledLoggerForScope(scope, logLevel, f.Writer)
+}
diff --git a/vendor/github.com/pion/logging/scoped.go b/vendor/github.com/pion/logging/scoped.go
new file mode 100644
index 0000000..678bab4
--- /dev/null
+++ b/vendor/github.com/pion/logging/scoped.go
@@ -0,0 +1,72 @@
+package logging
+
+import (
+	"sync/atomic"
+)
+
+// LogLevel represents the level at which the logger will emit log messages
+type LogLevel int32
+
+// Set updates the LogLevel to the supplied value
+func (ll *LogLevel) Set(newLevel LogLevel) {
+	atomic.StoreInt32((*int32)(ll), int32(newLevel))
+}
+
+// Get retrieves the current LogLevel value
+func (ll *LogLevel) Get() LogLevel {
+	return LogLevel(atomic.LoadInt32((*int32)(ll)))
+}
+
+func (ll LogLevel) String() string {
+	switch ll {
+	case LogLevelDisabled:
+		return "Disabled"
+	case LogLevelError:
+		return "Error"
+	case LogLevelWarn:
+		return "Warn"
+	case LogLevelInfo:
+		return "Info"
+	case LogLevelDebug:
+		return "Debug"
+	case LogLevelTrace:
+		return "Trace"
+	default:
+		return "UNKNOWN"
+	}
+}
+
+const (
+	// LogLevelDisabled completely disables logging of any events
+	LogLevelDisabled LogLevel = iota
+	// LogLevelError is for fatal errors which should be handled by user code,
+	// but are logged to ensure that they are seen
+	LogLevelError
+	// LogLevelWarn is for logging abnormal, but non-fatal library operation
+	LogLevelWarn
+	// LogLevelInfo is for logging normal library operation (e.g. state transitions, etc.)
+	LogLevelInfo
+	// LogLevelDebug is for logging low-level library information (e.g. internal operations)
+	LogLevelDebug
+	// LogLevelTrace is for logging very low-level library information (e.g. network traces)
+	LogLevelTrace
+)
+
+// LeveledLogger is the basic pion Logger interface
+type LeveledLogger interface {
+	Trace(msg string)
+	Tracef(format string, args ...interface{})
+	Debug(msg string)
+	Debugf(format string, args ...interface{})
+	Info(msg string)
+	Infof(format string, args ...interface{})
+	Warn(msg string)
+	Warnf(format string, args ...interface{})
+	Error(msg string)
+	Errorf(format string, args ...interface{})
+}
+
+// LoggerFactory is the basic pion LoggerFactory interface
+type LoggerFactory interface {
+	NewLogger(scope string) LeveledLogger
+}