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Types ¶
type PreloadedTaskRunner ¶
type PreloadedTaskRunner struct {
// contains filtered or unexported fields
}
PreloadedTaskRunner is a task runner that invokes a series of preloaded tasks, running until the tasks are completed, the context is canceled or an error is returned by one of the tasks (which cancels the context).
func NewPreloadedTaskRunner ¶
func NewPreloadedTaskRunner(ctx context.Context, concurrencyLimit uint16, initialCapacity int) *PreloadedTaskRunner
func (*PreloadedTaskRunner) Add ¶
func (tr *PreloadedTaskRunner) Add(f TaskFunc)
Add adds the given task function to be run.
func (*PreloadedTaskRunner) Start ¶
func (tr *PreloadedTaskRunner) Start()
Start starts running the tasks in the task runner. This does *not* wait for the tasks to complete, but rather returns immediately.
func (*PreloadedTaskRunner) StartAndWait ¶
func (tr *PreloadedTaskRunner) StartAndWait() error
StartAndWait starts running the tasks in the task runner and waits for them to complete.
type TaskRunner ¶
type TaskRunner struct {
// contains filtered or unexported fields
}
TaskRunner is a helper which runs a series of scheduled tasks against a defined limit of goroutines.
func NewTaskRunner ¶
func NewTaskRunner(ctx context.Context, concurrencyLimit uint16) *TaskRunner
NewTaskRunner creates a new task runner with the given starting context and concurrency limit. The TaskRunner will schedule no more goroutines that the specified concurrencyLimit. If the given context is canceled, then all tasks started after that point will also be canceled and the error returned. If a task returns an error, the context provided to all tasks is also canceled.
func (*TaskRunner) Schedule ¶
func (tr *TaskRunner) Schedule(f TaskFunc)
Schedule schedules a task to be run. This is safe to call from within another task handler function and immediately returns.
func (*TaskRunner) Wait ¶
func (tr *TaskRunner) Wait() error
Wait waits for all tasks to be completed, or a task to raise an error, or the parent context to have been canceled.
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