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1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 2012 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 #ifndef CC_RESOURCES_RESOURCE_POOL_H_ | 5 #ifndef CC_RESOURCES_RESOURCE_POOL_H_ |
6 #define CC_RESOURCES_RESOURCE_POOL_H_ | 6 #define CC_RESOURCES_RESOURCE_POOL_H_ |
7 | 7 |
8 #include <deque> | 8 #include <deque> |
9 | 9 |
10 #include "base/memory/scoped_ptr.h" | 10 #include "base/memory/scoped_ptr.h" |
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34 ResourceFormat format); | 34 ResourceFormat format); |
35 scoped_ptr<ScopedResource> TryAcquireResourceWithContentId(uint64 content_id); | 35 scoped_ptr<ScopedResource> TryAcquireResourceWithContentId(uint64 content_id); |
36 void ReleaseResource(scoped_ptr<ScopedResource> resource, | 36 void ReleaseResource(scoped_ptr<ScopedResource> resource, |
37 uint64_t content_id); | 37 uint64_t content_id); |
38 | 38 |
39 void SetResourceUsageLimits(size_t max_memory_usage_bytes, | 39 void SetResourceUsageLimits(size_t max_memory_usage_bytes, |
40 size_t max_unused_memory_usage_bytes, | 40 size_t max_unused_memory_usage_bytes, |
41 size_t max_resource_count); | 41 size_t max_resource_count); |
42 | 42 |
43 void ReduceResourceUsage(); | 43 void ReduceResourceUsage(); |
44 void CheckBusyResources(); | 44 // This might block if |wait_if_needed| is true and one of the currently |
| 45 // busy resources has a read lock fence that needs to be waited upon before |
| 46 // it can be locked for write again. |
| 47 void CheckBusyResources(bool wait_if_needed); |
45 | 48 |
46 size_t total_memory_usage_bytes() const { return memory_usage_bytes_; } | 49 size_t total_memory_usage_bytes() const { return memory_usage_bytes_; } |
47 size_t acquired_memory_usage_bytes() const { | 50 size_t acquired_memory_usage_bytes() const { |
48 return memory_usage_bytes_ - unused_memory_usage_bytes_; | 51 return memory_usage_bytes_ - unused_memory_usage_bytes_; |
49 } | 52 } |
50 size_t total_resource_count() const { return resource_count_; } | 53 size_t total_resource_count() const { return resource_count_; } |
51 size_t acquired_resource_count() const { | 54 size_t acquired_resource_count() const { |
52 return resource_count_ - unused_resources_.size(); | 55 return resource_count_ - unused_resources_.size(); |
53 } | 56 } |
54 size_t busy_resource_count() const { return busy_resources_.size(); } | 57 size_t busy_resource_count() const { return busy_resources_.size(); } |
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89 typedef std::deque<PoolResource> ResourceList; | 92 typedef std::deque<PoolResource> ResourceList; |
90 ResourceList unused_resources_; | 93 ResourceList unused_resources_; |
91 ResourceList busy_resources_; | 94 ResourceList busy_resources_; |
92 | 95 |
93 DISALLOW_COPY_AND_ASSIGN(ResourcePool); | 96 DISALLOW_COPY_AND_ASSIGN(ResourcePool); |
94 }; | 97 }; |
95 | 98 |
96 } // namespace cc | 99 } // namespace cc |
97 | 100 |
98 #endif // CC_RESOURCES_RESOURCE_POOL_H_ | 101 #endif // CC_RESOURCES_RESOURCE_POOL_H_ |
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