mft

mft

some tools (golang) RWCMutex - rwmutex with TryLock(context) method
PMutex - rwmutex with TryLock(context) method and change mode between Lock and RLock
G - generator next id

RWCMutex

RWCMutex is RW mutex with TryLock method.
TryLock try locks mutex until context done. TryLock returns true when success and false when not.
LockD try locks mutex until during input duration.

PMutex

PMutex is RW mutex with TryLock method and you can Promote RLock to Lock and Reduce from Lock to RLock.
PMutex works slowly then RWCMutex

PMutex.Lock method returns lock key
You must not lose this key, because you need it to unlock.
You can use TryUnlock multiple times.

	k := mx.Lock()
    ...
	mx.TryUnlock(k)
    ...
	mx.TryUnlock(k)

	k := mx.Lock()
    ...
	mx.Unlock(k)

Error

You can create error with code and error from error

Example:

package main
import (
	"fmt"
	"github.com/myfantasy/mft"
)
func main() {
	var e error
	e = mft.ErrorCS(7, "Bond Error")
	fmt.Println(e)
	e = mft.ErrorCSE(12, "M Error", e)
	fmt.Println(e)
}

[7] Bond Error
[12] M Error    [7] Bond Error