55 lines
1.4 KiB
Go
55 lines
1.4 KiB
Go
package fetcher
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import (
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"context"
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"time"
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"git.avsdev.uk/Go/job-search/internal/config"
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"git.avsdev.uk/Go/job-search/internal/util"
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)
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// sleepDuration is how long the sleeper's simulated work takes.
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const sleepDuration = 60 * time.Second
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// runSleeper runs the sleeper test source until ctx is cancelled: every
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// configured interval it simulates work by sleeping for sleepDuration.
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func runSleeper(
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ctx context.Context, conf *config.JobSearchConfig, since time.Time,
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) error {
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blockShutdown := conf.Sources.Sleeper.BlockShutdown
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w := util.Worker{
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Name: "Sleeper",
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Interval: conf.Sources.Sleeper.Interval,
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Task: func(taskCtx context.Context, since time.Time) error {
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if blockShutdown {
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return sleep(taskCtx, true, sleepDuration)
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} else {
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return sleep(ctx, false, sleepDuration)
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}
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},
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}
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return w.Run(ctx, since)
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}
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// sleep simulates work taking duration, returning early with ctx.Err() if ctx
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// is cancelled. With blockShutdown, the work itself ignores ctx (as a
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// non-cooperative call would) and only the wait for it stops.
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func sleep(
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ctx context.Context, blockShutdown bool, duration time.Duration,
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) error {
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return util.AwaitTaskE(ctx, func() error {
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if blockShutdown {
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time.Sleep(duration)
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return nil
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}
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timer := time.NewTimer(duration)
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defer timer.Stop()
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select {
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case <-timer.C:
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return nil
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case <-ctx.Done():
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return ctx.Err()
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}
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})
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}
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