| OLD | NEW |
| 1 // Copyright 2015 The LUCI Authors. All rights reserved. | 1 // Copyright 2015 The LUCI Authors. All rights reserved. |
| 2 // Use of this source code is governed under the Apache License, Version 2.0 | 2 // Use of this source code is governed under the Apache License, Version 2.0 |
| 3 // that can be found in the LICENSE file. | 3 // that can be found in the LICENSE file. |
| 4 | 4 |
| 5 package dscache | 5 package dscache |
| 6 | 6 |
| 7 import ( | 7 import ( |
| 8 ds "github.com/luci/gae/service/datastore" | 8 ds "github.com/luci/gae/service/datastore" |
| 9 "github.com/luci/gae/service/info" | 9 "github.com/luci/gae/service/info" |
| 10 mc "github.com/luci/gae/service/memcache" | 10 mc "github.com/luci/gae/service/memcache" |
| 11 » "github.com/luci/luci-go/common/mathrand" | 11 » "github.com/luci/luci-go/common/data/rand/mathrand" |
| 12 "golang.org/x/net/context" | 12 "golang.org/x/net/context" |
| 13 ) | 13 ) |
| 14 | 14 |
| 15 type key int | 15 type key int |
| 16 | 16 |
| 17 var dsTxnCacheKey key | 17 var dsTxnCacheKey key |
| 18 | 18 |
| 19 // FilterRDS installs a caching RawDatastore filter in the context. | 19 // FilterRDS installs a caching RawDatastore filter in the context. |
| 20 // | 20 // |
| 21 // It does nothing if IsGloballyEnabled returns false. That way it is possible | 21 // It does nothing if IsGloballyEnabled returns false. That way it is possible |
| (...skipping 35 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 57 shardsForKey, | 57 shardsForKey, |
| 58 } | 58 } |
| 59 | 59 |
| 60 v := c.Value(dsTxnCacheKey) | 60 v := c.Value(dsTxnCacheKey) |
| 61 if v == nil { | 61 if v == nil { |
| 62 return &dsCache{ds, sc} | 62 return &dsCache{ds, sc} |
| 63 } | 63 } |
| 64 return &dsTxnCache{ds, v.(*dsTxnState), sc} | 64 return &dsTxnCache{ds, v.(*dsTxnState), sc} |
| 65 }) | 65 }) |
| 66 } | 66 } |
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