diff options
Diffstat (limited to 'vendor/github.com/modern-go/concurrent')
| -rw-r--r-- | vendor/github.com/modern-go/concurrent/LICENSE | 201 | ||||
| -rw-r--r-- | vendor/github.com/modern-go/concurrent/README.md | 49 | ||||
| -rw-r--r-- | vendor/github.com/modern-go/concurrent/executor.go | 14 | ||||
| -rw-r--r-- | vendor/github.com/modern-go/concurrent/go_above_19.go | 15 | ||||
| -rw-r--r-- | vendor/github.com/modern-go/concurrent/go_below_19.go | 33 | ||||
| -rw-r--r-- | vendor/github.com/modern-go/concurrent/log.go | 13 | ||||
| -rwxr-xr-x | vendor/github.com/modern-go/concurrent/test.sh | 12 | ||||
| -rw-r--r-- | vendor/github.com/modern-go/concurrent/unbounded_executor.go | 119 |
8 files changed, 0 insertions, 456 deletions
diff --git a/vendor/github.com/modern-go/concurrent/LICENSE b/vendor/github.com/modern-go/concurrent/LICENSE deleted file mode 100644 index 261eeb9e..00000000 --- a/vendor/github.com/modern-go/concurrent/LICENSE +++ /dev/null @@ -1,201 +0,0 @@ - Apache License - Version 2.0, January 2004 - http://www.apache.org/licenses/ - - TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION - - 1. Definitions. - - "License" shall mean the terms and conditions for use, reproduction, - and distribution as defined by Sections 1 through 9 of this document. - - "Licensor" shall mean the copyright owner or entity authorized by - the copyright owner that is granting the License. - - "Legal Entity" shall mean the union of the acting entity and all - other entities that control, are controlled by, or are under common - control with that entity. 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We also recommend that a - file or class name and description of purpose be included on the - same "printed page" as the copyright notice for easier - identification within third-party archives. - - Copyright [yyyy] [name of copyright owner] - - 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. diff --git a/vendor/github.com/modern-go/concurrent/README.md b/vendor/github.com/modern-go/concurrent/README.md deleted file mode 100644 index acab3200..00000000 --- a/vendor/github.com/modern-go/concurrent/README.md +++ /dev/null @@ -1,49 +0,0 @@ -# concurrent - -[](https://sourcegraph.com/github.com/modern-go/concurrent?badge) -[](http://godoc.org/github.com/modern-go/concurrent) -[](https://travis-ci.org/modern-go/concurrent) -[](https://codecov.io/gh/modern-go/concurrent) -[](https://goreportcard.com/report/github.com/modern-go/concurrent) -[](https://raw.githubusercontent.com/modern-go/concurrent/master/LICENSE) - -* concurrent.Map: backport sync.Map for go below 1.9 -* concurrent.Executor: goroutine with explicit ownership and cancellable - -# concurrent.Map - -because sync.Map is only available in go 1.9, we can use concurrent.Map to make code portable - -```go -m := concurrent.NewMap() -m.Store("hello", "world") -elem, found := m.Load("hello") -// elem will be "world" -// found will be true -``` - -# concurrent.Executor - -```go -executor := concurrent.NewUnboundedExecutor() -executor.Go(func(ctx context.Context) { - everyMillisecond := time.NewTicker(time.Millisecond) - for { - select { - case <-ctx.Done(): - fmt.Println("goroutine exited") - return - case <-everyMillisecond.C: - // do something - } - } -}) -time.Sleep(time.Second) -executor.StopAndWaitForever() -fmt.Println("executor stopped") -``` - -attach goroutine to executor instance, so that we can - -* cancel it by stop the executor with Stop/StopAndWait/StopAndWaitForever -* handle panic by callback: the default behavior will no longer crash your application
\ No newline at end of file diff --git a/vendor/github.com/modern-go/concurrent/executor.go b/vendor/github.com/modern-go/concurrent/executor.go deleted file mode 100644 index 623dba1a..00000000 --- a/vendor/github.com/modern-go/concurrent/executor.go +++ /dev/null @@ -1,14 +0,0 @@ -package concurrent - -import "context" - -// Executor replace go keyword to start a new goroutine -// the goroutine should cancel itself if the context passed in has been cancelled -// the goroutine started by the executor, is owned by the executor -// we can cancel all executors owned by the executor just by stop the executor itself -// however Executor interface does not Stop method, the one starting and owning executor -// should use the concrete type of executor, instead of this interface. -type Executor interface { - // Go starts a new goroutine controlled by the context - Go(handler func(ctx context.Context)) -} diff --git a/vendor/github.com/modern-go/concurrent/go_above_19.go b/vendor/github.com/modern-go/concurrent/go_above_19.go deleted file mode 100644 index aeabf8c4..00000000 --- a/vendor/github.com/modern-go/concurrent/go_above_19.go +++ /dev/null @@ -1,15 +0,0 @@ -//+build go1.9 - -package concurrent - -import "sync" - -// Map is a wrapper for sync.Map introduced in go1.9 -type Map struct { - sync.Map -} - -// NewMap creates a thread safe Map -func NewMap() *Map { - return &Map{} -} diff --git a/vendor/github.com/modern-go/concurrent/go_below_19.go b/vendor/github.com/modern-go/concurrent/go_below_19.go deleted file mode 100644 index b9c8df7f..00000000 --- a/vendor/github.com/modern-go/concurrent/go_below_19.go +++ /dev/null @@ -1,33 +0,0 @@ -//+build !go1.9 - -package concurrent - -import "sync" - -// Map implements a thread safe map for go version below 1.9 using mutex -type Map struct { - lock sync.RWMutex - data map[interface{}]interface{} -} - -// NewMap creates a thread safe map -func NewMap() *Map { - return &Map{ - data: make(map[interface{}]interface{}, 32), - } -} - -// Load is same as sync.Map Load -func (m *Map) Load(key interface{}) (elem interface{}, found bool) { - m.lock.RLock() - elem, found = m.data[key] - m.lock.RUnlock() - return -} - -// Load is same as sync.Map Store -func (m *Map) Store(key interface{}, elem interface{}) { - m.lock.Lock() - m.data[key] = elem - m.lock.Unlock() -} diff --git a/vendor/github.com/modern-go/concurrent/log.go b/vendor/github.com/modern-go/concurrent/log.go deleted file mode 100644 index 9756fcc7..00000000 --- a/vendor/github.com/modern-go/concurrent/log.go +++ /dev/null @@ -1,13 +0,0 @@ -package concurrent - -import ( - "os" - "log" - "io/ioutil" -) - -// ErrorLogger is used to print out error, can be set to writer other than stderr -var ErrorLogger = log.New(os.Stderr, "", 0) - -// InfoLogger is used to print informational message, default to off -var InfoLogger = log.New(ioutil.Discard, "", 0)
\ No newline at end of file diff --git a/vendor/github.com/modern-go/concurrent/test.sh b/vendor/github.com/modern-go/concurrent/test.sh deleted file mode 100755 index d1e6b2ec..00000000 --- a/vendor/github.com/modern-go/concurrent/test.sh +++ /dev/null @@ -1,12 +0,0 @@ -#!/usr/bin/env bash - -set -e -echo "" > coverage.txt - -for d in $(go list ./... | grep -v vendor); do - go test -coverprofile=profile.out -coverpkg=github.com/modern-go/concurrent $d - if [ -f profile.out ]; then - cat profile.out >> coverage.txt - rm profile.out - fi -done diff --git a/vendor/github.com/modern-go/concurrent/unbounded_executor.go b/vendor/github.com/modern-go/concurrent/unbounded_executor.go deleted file mode 100644 index 05a77dce..00000000 --- a/vendor/github.com/modern-go/concurrent/unbounded_executor.go +++ /dev/null @@ -1,119 +0,0 @@ -package concurrent - -import ( - "context" - "fmt" - "runtime" - "runtime/debug" - "sync" - "time" - "reflect" -) - -// HandlePanic logs goroutine panic by default -var HandlePanic = func(recovered interface{}, funcName string) { - ErrorLogger.Println(fmt.Sprintf("%s panic: %v", funcName, recovered)) - ErrorLogger.Println(string(debug.Stack())) -} - -// UnboundedExecutor is a executor without limits on counts of alive goroutines -// it tracks the goroutine started by it, and can cancel them when shutdown -type UnboundedExecutor struct { - ctx context.Context - cancel context.CancelFunc - activeGoroutinesMutex *sync.Mutex - activeGoroutines map[string]int - HandlePanic func(recovered interface{}, funcName string) -} - -// GlobalUnboundedExecutor has the life cycle of the program itself -// any goroutine want to be shutdown before main exit can be started from this executor -// GlobalUnboundedExecutor expects the main function to call stop -// it does not magically knows the main function exits -var GlobalUnboundedExecutor = NewUnboundedExecutor() - -// NewUnboundedExecutor creates a new UnboundedExecutor, -// UnboundedExecutor can not be created by &UnboundedExecutor{} -// HandlePanic can be set with a callback to override global HandlePanic -func NewUnboundedExecutor() *UnboundedExecutor { - ctx, cancel := context.WithCancel(context.TODO()) - return &UnboundedExecutor{ - ctx: ctx, - cancel: cancel, - activeGoroutinesMutex: &sync.Mutex{}, - activeGoroutines: map[string]int{}, - } -} - -// Go starts a new goroutine and tracks its lifecycle. -// Panic will be recovered and logged automatically, except for StopSignal -func (executor *UnboundedExecutor) Go(handler func(ctx context.Context)) { - pc := reflect.ValueOf(handler).Pointer() - f := runtime.FuncForPC(pc) - funcName := f.Name() - file, line := f.FileLine(pc) - executor.activeGoroutinesMutex.Lock() - defer executor.activeGoroutinesMutex.Unlock() - startFrom := fmt.Sprintf("%s:%d", file, line) - executor.activeGoroutines[startFrom] += 1 - go func() { - defer func() { - recovered := recover() - // if you want to quit a goroutine without trigger HandlePanic - // use runtime.Goexit() to quit - if recovered != nil { - if executor.HandlePanic == nil { - HandlePanic(recovered, funcName) - } else { - executor.HandlePanic(recovered, funcName) - } - } - executor.activeGoroutinesMutex.Lock() - executor.activeGoroutines[startFrom] -= 1 - executor.activeGoroutinesMutex.Unlock() - }() - handler(executor.ctx) - }() -} - -// Stop cancel all goroutines started by this executor without wait -func (executor *UnboundedExecutor) Stop() { - executor.cancel() -} - -// StopAndWaitForever cancel all goroutines started by this executor and -// wait until all goroutines exited -func (executor *UnboundedExecutor) StopAndWaitForever() { - executor.StopAndWait(context.Background()) -} - -// StopAndWait cancel all goroutines started by this executor and wait. -// Wait can be cancelled by the context passed in. -func (executor *UnboundedExecutor) StopAndWait(ctx context.Context) { - executor.cancel() - for { - oneHundredMilliseconds := time.NewTimer(time.Millisecond * 100) - select { - case <-oneHundredMilliseconds.C: - if executor.checkNoActiveGoroutines() { - return - } - case <-ctx.Done(): - return - } - } -} - -func (executor *UnboundedExecutor) checkNoActiveGoroutines() bool { - executor.activeGoroutinesMutex.Lock() - defer executor.activeGoroutinesMutex.Unlock() - for startFrom, count := range executor.activeGoroutines { - if count > 0 { - InfoLogger.Println("UnboundedExecutor is still waiting goroutines to quit", - "startFrom", startFrom, - "count", count) - return false - } - } - return true -} |