| /* |
| * Copyright 2010 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| // Author: jmarantz@google.com (Joshua Marantz) |
| |
| // Helper class for sending concurrent traffic to a cache during unit tests. |
| |
| #ifndef PAGESPEED_KERNEL_CACHE_CACHE_SPAMMER_H_ |
| #define PAGESPEED_KERNEL_CACHE_CACHE_SPAMMER_H_ |
| |
| #include "pagespeed/kernel/base/basictypes.h" |
| #include "pagespeed/kernel/base/thread.h" |
| #include "pagespeed/kernel/base/thread_system.h" |
| |
| namespace net_instaweb { |
| |
| class CacheInterface; |
| |
| // Helper class for blasting a cache with concurrent requests. Refactored |
| // from threadsafe_cache_test.cc. |
| class CacheSpammer : public ThreadSystem::Thread { |
| public: |
| virtual ~CacheSpammer(); |
| |
| // value_prefix will be suffixed with an integer when stored. |
| // num_threads indicates how many threads will run in parallel. |
| // num_iters indicates how many times each thread will run a big loop. |
| // num_inserts sets the number of keys inserted and looked up in the loop. |
| // |
| // num_iters will be divided down by 100 when running on valgrind. |
| static void RunTests(int num_threads, int num_iters, int num_inserts, |
| bool expecting_evictions, bool do_deletes, |
| const char* value_prefix, |
| CacheInterface* cache, |
| ThreadSystem* thread_runtime); |
| |
| // Called when a Get completes. |
| void GetDone(bool found, StringPiece key); |
| |
| protected: |
| virtual void Run(); |
| |
| private: |
| CacheSpammer(ThreadSystem* runtime, |
| ThreadSystem::ThreadFlags flags, |
| CacheInterface* cache, |
| bool expecting_evictions, |
| bool do_deletes, |
| const char* value_prefix, |
| int index, |
| int num_iters, |
| int num_inserts); |
| |
| CacheInterface* cache_; |
| bool expecting_evictions_; |
| bool do_deletes_; |
| const char* value_prefix_; |
| int index_; |
| int num_iters_; |
| int num_inserts_; |
| scoped_ptr<ThreadSystem::CondvarCapableMutex> mutex_; |
| scoped_ptr<ThreadSystem::Condvar> condvar_; |
| int pending_gets_ GUARDED_BY(mutex_); |
| |
| DISALLOW_COPY_AND_ASSIGN(CacheSpammer); |
| }; |
| |
| } // namespace net_instaweb |
| |
| #endif // PAGESPEED_KERNEL_CACHE_CACHE_SPAMMER_H_ |