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45 lines
962 B
Go
45 lines
962 B
Go
package clientinterceptors
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import (
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"context"
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"time"
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"github.com/tal-tech/go-zero/core/contextx"
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"google.golang.org/grpc"
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)
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// TimeoutInterceptor is an interceptor that controls timeout.
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func TimeoutInterceptor(timeout time.Duration) grpc.UnaryClientInterceptor {
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return func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn,
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invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
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if timeout <= 0 {
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return invoker(ctx, method, req, reply, cc, opts...)
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}
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ctx, cancel := contextx.ShrinkDeadline(ctx, timeout)
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defer cancel()
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done := make(chan error)
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panicChan := make(chan interface{}, 1)
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go func() {
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defer func() {
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if p := recover(); p != nil {
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panicChan <- p
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}
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}()
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done <- invoker(ctx, method, req, reply, cc, opts...)
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close(done)
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}()
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select {
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case p := <-panicChan:
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panic(p)
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case err := <-done:
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return err
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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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