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| author | 2025-09-09 16:12:29 +0200 | |
|---|---|---|
| committer | 2025-09-09 16:12:29 +0200 | |
| commit | c949b9f2d137f37c8c93c916caacb182e6070e90 (patch) | |
| tree | 846c6993bb27033547724c9d4b47401c7fef7ab2 /vendor/github.com/sourcegraph/conc/pool/result_error_pool.go | |
| parent | [chore] update dependencies (#4422) (diff) | |
| download | gotosocial-c949b9f2d137f37c8c93c916caacb182e6070e90.tar.xz | |
[chore] update dependencies (#4423)
- codeberg.org/gruf/go-ffmpreg: v0.6.10 -> v0.6.11
- github.com/spf13/cast: v1.9.2 -> v1.10.0
- github.com/spf13/viper: v1.20.1 -> v1.21.0
- golang.org/x/crypto: v0.41.0 -> v0.42.0
- golang.org/x/image: v0.30.0 -> v0.31.0
Reviewed-on: https://codeberg.org/superseriousbusiness/gotosocial/pulls/4423
Co-authored-by: kim <grufwub@gmail.com>
Co-committed-by: kim <grufwub@gmail.com>
Diffstat (limited to 'vendor/github.com/sourcegraph/conc/pool/result_error_pool.go')
| -rw-r--r-- | vendor/github.com/sourcegraph/conc/pool/result_error_pool.go | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/vendor/github.com/sourcegraph/conc/pool/result_error_pool.go b/vendor/github.com/sourcegraph/conc/pool/result_error_pool.go new file mode 100644 index 000000000..832cd9bb4 --- /dev/null +++ b/vendor/github.com/sourcegraph/conc/pool/result_error_pool.go @@ -0,0 +1,80 @@ +package pool + +import ( + "context" +) + +// ResultErrorPool is a pool that executes tasks that return a generic result +// type and an error. Tasks are executed in the pool with Go(), then the +// results of the tasks are returned by Wait(). +// +// The order of the results is guaranteed to be the same as the order the +// tasks were submitted. +// +// The configuration methods (With*) will panic if they are used after calling +// Go() for the first time. +type ResultErrorPool[T any] struct { + errorPool ErrorPool + agg resultAggregator[T] + collectErrored bool +} + +// Go submits a task to the pool. If all goroutines in the pool +// are busy, a call to Go() will block until the task can be started. +func (p *ResultErrorPool[T]) Go(f func() (T, error)) { + idx := p.agg.nextIndex() + p.errorPool.Go(func() error { + res, err := f() + p.agg.save(idx, res, err != nil) + return err + }) +} + +// Wait cleans up any spawned goroutines, propagating any panics and +// returning the results and any errors from tasks. +func (p *ResultErrorPool[T]) Wait() ([]T, error) { + err := p.errorPool.Wait() + results := p.agg.collect(p.collectErrored) + p.agg = resultAggregator[T]{} // reset for reuse + return results, err +} + +// WithCollectErrored configures the pool to still collect the result of a task +// even if the task returned an error. By default, the result of tasks that errored +// are ignored and only the error is collected. +func (p *ResultErrorPool[T]) WithCollectErrored() *ResultErrorPool[T] { + p.panicIfInitialized() + p.collectErrored = true + return p +} + +// WithContext converts the pool to a ResultContextPool for tasks that should +// run under the same context, such that they each respect shared cancellation. +// For example, WithCancelOnError can be configured on the returned pool to +// signal that all goroutines should be cancelled upon the first error. +func (p *ResultErrorPool[T]) WithContext(ctx context.Context) *ResultContextPool[T] { + p.panicIfInitialized() + return &ResultContextPool[T]{ + contextPool: *p.errorPool.WithContext(ctx), + } +} + +// WithFirstError configures the pool to only return the first error +// returned by a task. By default, Wait() will return a combined error. +func (p *ResultErrorPool[T]) WithFirstError() *ResultErrorPool[T] { + p.panicIfInitialized() + p.errorPool.WithFirstError() + return p +} + +// WithMaxGoroutines limits the number of goroutines in a pool. +// Defaults to unlimited. Panics if n < 1. +func (p *ResultErrorPool[T]) WithMaxGoroutines(n int) *ResultErrorPool[T] { + p.panicIfInitialized() + p.errorPool.WithMaxGoroutines(n) + return p +} + +func (p *ResultErrorPool[T]) panicIfInitialized() { + p.errorPool.panicIfInitialized() +} |
