ctl

package

v0.0.4 Latest Latest Go to latest Published: Dec 21, 2023 License: MIT Imports: 5 Imported by: 0

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type AcquisitionCtl struct {
	// contains filtered or unexported fields
}

AcquisitionCtl is a primitive for controlling acquisition status.

func NewAcquisitionCtl(max int64, acquired map[string]int64) *AcquisitionCtl

NewAcquisitionCtl creates new AcquisitionCtl.

func (c *AcquisitionCtl) Acquire(ctx context.Context, operator string, exclusive bool) (<-chan AcquisitionResult, bool)

Acquire acquires exclusive/shared lock.

func (c *AcquisitionCtl) Acquired(operator string) bool

func (c *AcquisitionCtl) Release(operator string) bool

Release releases acquired lock.

type AcquisitionResult struct {
	Acquired int64
	Err      error
}

type InitCtl struct {
	// contains filtered or unexported fields
}

InitCtl is a primitive for controlling init status.

func NewInitCtl(completed bool) *InitCtl

NewInitCtl creates new InitCtl.

func (i *InitCtl) Complete(operator string) error

Complete marks init operation as completed.

func (i *InitCtl) Fail(operator string) error

Fail marks init operation as failed.

func (i *InitCtl) TryInit(ctx context.Context, operator string) <-chan TryInitResult

TryInit tries to acquire lock and start init operation. When operation is already completed, 'try' will be false.

type TryInitResult struct {
	Try       bool
	Initiated bool
	Err       error
}