37 lines
909 B
Go
37 lines
909 B
Go
package tools
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import "fmt"
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// Interface for all types of wrapper around a channel of results and an error channel
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// Implementors will expose a type-specific channel for results
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// Call the Wait() function after processing the results channel to catch any errors
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// that occurred during the async processing
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type ChannelWrapper interface {
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// Call this after processing results channel to check for async errors
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Wait() error
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}
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// Base implementation of channel wrapper to just deal with errors
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type BaseChannelWrapper struct {
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errorChan <-chan error
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}
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func (w *BaseChannelWrapper) Wait() error {
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var err error
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for e := range w.errorChan {
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if err != nil {
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// Combine in case multiple errors
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err = fmt.Errorf("%v\n%v", err, e)
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} else {
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err = e
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}
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}
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return err
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}
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func NewBaseChannelWrapper(errChan <-chan error) *BaseChannelWrapper {
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return &BaseChannelWrapper{errorChan: errChan}
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}
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