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Index ¶
Examples ¶
Constants ¶
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Variables ¶
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var DebugGoroutines = os.Getenv("DEBUG_GOROUTINES") == "1"
Functions ¶
func ID ¶
func ID() uint64
ID returns goroutine id of the goroutine that calls it. It calls runtime.Stack with a large enough buffer to capture the entire trace.
Example ¶
package main
import (
"fmt"
"github.com/searKing/golang/go/runtime/goroutine"
)
func main() {
fmt.Printf("%d\n", goroutine.ID())
}
Output: 1
Types ¶
type Lock ¶
type Lock uint64
Lock represents a goroutine ID, with goroutine ID checked, that is whether GoRoutines of lock newer and check caller differ. disable when DebugGoroutines equals false
func NewLock ¶
func NewLock() Lock
NewLock returns a goroutine Lock, that checks whether goroutine of lock newer and check caller differ. Code borrowed from https://github.com/golang/go/blob/master/src/net/http/h2_bundle.go
Example ¶
package main
import (
"fmt"
"sync"
"github.com/searKing/golang/go/runtime/goroutine"
)
func main() {
oldDebug := goroutine.DebugGoroutines
goroutine.DebugGoroutines = true
defer func() { goroutine.DebugGoroutines = oldDebug }()
g := goroutine.NewLock()
g.MustCheck()
var wg sync.WaitGroup
wg.Add(1)
go func() {
defer wg.Done()
defer func() {
if r := recover(); r != nil {
fmt.Printf("panic recovered: %v\n", r)
}
}()
g.MustCheck() // should panic
}()
wg.Wait()
}
Output: panic recovered: running on the wrong goroutine
func (Lock) CheckNotOn ¶
Check whether caller's goroutine escape lock
func (Lock) MustCheckNotOn ¶
func (g Lock) MustCheckNotOn()
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