redis/go-redis
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Fix race

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This commit is contained in:
Vladimir Mihailenco
2020-09-17 12:27:16 +03:00
parent 297e671f5e
commit c5d4b71f66
6 changed files with 96 additions and 140 deletions
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42
redis.go
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@ -49,12 +49,10 @@ func (hs hooks) process(
ctx context.Context, cmd Cmder, fn func(context.Context, Cmder) error,
) error {
if len(hs.hooks) == 0 {
err, canceled := hs.withContext(ctx, func() error {
err := hs.withContext(ctx, func() error {
return fn(ctx, cmd)
})
if canceled {
cmd.SetErr(err)
}
cmd.SetErr(err)
return err
}
@ -69,13 +67,10 @@ func (hs hooks) process(
}
if retErr == nil {
var canceled bool
retErr, canceled = hs.withContext(ctx, func() error {
retErr = hs.withContext(ctx, func() error {
return fn(ctx, cmd)
})
if canceled {
cmd.SetErr(retErr)
}
cmd.SetErr(retErr)
}
for hookIndex--; hookIndex >= 0; hookIndex-- {
@ -92,12 +87,9 @@ func (hs hooks) processPipeline(
ctx context.Context, cmds []Cmder, fn func(context.Context, []Cmder) error,
) error {
if len(hs.hooks) == 0 {
err, canceled := hs.withContext(ctx, func() error {
err := hs.withContext(ctx, func() error {
return fn(ctx, cmds)
})
if canceled {
setCmdsErr(cmds, err)
}
return err
}
@ -112,13 +104,9 @@ func (hs hooks) processPipeline(
}
if retErr == nil {
var canceled bool
retErr, canceled = hs.withContext(ctx, func() error {
retErr = hs.withContext(ctx, func() error {
return fn(ctx, cmds)
})
if canceled {
setCmdsErr(cmds, retErr)
}
}
for hookIndex--; hookIndex >= 0; hookIndex-- {
@ -138,10 +126,10 @@ func (hs hooks) processTxPipeline(
return hs.processPipeline(ctx, cmds, fn)
}
func (hs hooks) withContext(ctx context.Context, fn func() error) (_ error, canceled bool) {
func (hs hooks) withContext(ctx context.Context, fn func() error) error {
done := ctx.Done()
if done == nil {
return fn(), false
return fn()
}
errc := make(chan error, 1)
@ -149,9 +137,9 @@ func (hs hooks) withContext(ctx context.Context, fn func() error) (_ error, canc
select {
case <-done:
return ctx.Err(), true
return ctx.Err()
case err := <-errc:
return err, false
return err
}
}
@ -324,15 +312,6 @@ func (c *baseClient) withConn(
}
func (c *baseClient) process(ctx context.Context, cmd Cmder) error {
err := c._process(ctx, cmd)
if err != nil {
cmd.SetErr(err)
return err
}
return nil
}
func (c *baseClient) _process(ctx context.Context, cmd Cmder) error {
var lastErr error
for attempt := 0; attempt <= c.opt.MaxRetries; attempt++ {
attempt := attempt
@ -476,6 +455,7 @@ func (c *baseClient) pipelineProcessCmds(
func pipelineReadCmds(rd *proto.Reader, cmds []Cmder) error {
for _, cmd := range cmds {
err := cmd.readReply(rd)
cmd.SetErr(err)
if err != nil && !isRedisError(err) {
return err
}