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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 package featureBreaker | 5 package featureBreaker |
6 | 6 |
7 import ( | 7 import ( |
8 "golang.org/x/net/context" | 8 "golang.org/x/net/context" |
9 | 9 |
10 mc "github.com/luci/gae/service/memcache" | 10 mc "github.com/luci/gae/service/memcache" |
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41 } | 41 } |
42 | 42 |
43 func (m *mcState) Stats() (ret *mc.Statistics, err error) { | 43 func (m *mcState) Stats() (ret *mc.Statistics, err error) { |
44 err = m.run(func() (err error) { | 44 err = m.run(func() (err error) { |
45 ret, err = m.RawInterface.Stats() | 45 ret, err = m.RawInterface.Stats() |
46 return | 46 return |
47 }) | 47 }) |
48 return | 48 return |
49 } | 49 } |
50 | 50 |
51 // FilterMC installs a counter mc filter in the context. | 51 // FilterMC installs a featureBreaker mc filter in the context. |
52 func FilterMC(c context.Context, defaultError error) (context.Context, FeatureBr
eaker) { | 52 func FilterMC(c context.Context, defaultError error) (context.Context, FeatureBr
eaker) { |
53 state := newState(defaultError) | 53 state := newState(defaultError) |
54 return mc.AddRawFilters(c, func(ic context.Context, rds mc.RawInterface)
mc.RawInterface { | 54 return mc.AddRawFilters(c, func(ic context.Context, rds mc.RawInterface)
mc.RawInterface { |
55 return &mcState{state, rds} | 55 return &mcState{state, rds} |
56 }), state | 56 }), state |
57 } | 57 } |
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