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resource: Move opening of the transformed resources after cache check

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The old version should be functionally the same, but opening up these readers (potentially files) every time is wasteful if we don't read from them.
This commit is contained in:
Bjørn Erik Pedersen 2018-07-12 18:59:39 +02:00
parent beec1fc98e
commit 0024dcfe3e
1 changed files with 8 additions and 6 deletions
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14
resource/transform.go
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@ -303,12 +303,6 @@ func (r *transformedResource) transform(setContent bool) (err error) {
first := chain[0] first := chain[0]
contentrc, err := contentReadSeekerCloser(first)
if err != nil {
return err
}
defer contentrc.Close()
// Files with a suffix will be stored in cache (both on disk and in memory) // Files with a suffix will be stored in cache (both on disk and in memory)
// partitioned by their suffix. There will be other files below /other. // partitioned by their suffix. There will be other files below /other.
// This partition is also how we determine what to delete on server reloads. // This partition is also how we determine what to delete on server reloads.
@ -347,6 +341,7 @@ func (r *transformedResource) transform(setContent bool) (err error) {
r.cache.nlocker.Unlock(key) r.cache.nlocker.Unlock(key)
return return
} }
defer r.cache.nlocker.Unlock(key) defer r.cache.nlocker.Unlock(key)
defer r.cache.set(key, r) defer r.cache.set(key, r)
@ -362,6 +357,13 @@ func (r *transformedResource) transform(setContent bool) (err error) {
tctx.InMediaType = first.MediaType() tctx.InMediaType = first.MediaType()
tctx.OutMediaType = first.MediaType() tctx.OutMediaType = first.MediaType()
contentrc, err := contentReadSeekerCloser(first)
if err != nil {
return err
}
defer contentrc.Close()
tctx.From = contentrc tctx.From = contentrc
tctx.To = b1 tctx.To = b1