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Package functionchain

type Function ¶

type Function interface {
    SetTo(ctx context.Context, activate bool) error
}

type FunctionChain ¶

a "function chain" is a chain of idempotent functions that enable or disable something. The chain will attempt to keep ALL functions enabled or disabled. In other words, it attempts to keep all functions either disabled or enabled.

type FunctionChain struct {
    sync.Mutex
    // contains filtered or unexported fields
}

func NewFunctionChain ¶

func NewFunctionChain() *FunctionChain

func (*FunctionChain) Add ¶

func (fc *FunctionChain) Add(f Function) *function_ref

func (*FunctionChain) AddFuncs ¶

func (fc *FunctionChain) AddFuncs(enable, disable func(context.Context) error) *function_ref

shortcut: add a pair of enable/disable functions

func (*FunctionChain) AddSetter ¶

func (fc *FunctionChain) AddSetter(setter func(context.Context, bool) error) *function_ref

shortcut: add a pair of enable/disable functions

func (*FunctionChain) Disable ¶

func (fc *FunctionChain) Disable(ctx context.Context) error

func (*FunctionChain) Enable ¶

func (fc *FunctionChain) Enable(ctx context.Context) error

func (*FunctionChain) SetTo ¶

func (fc *FunctionChain) SetTo(ctx context.Context, b bool) error