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Unified Diff: base/thread_pool.h

Issue 624713003: Keep only base/extractor.[cc|h]. (Closed) Base URL: https://chromium.googlesource.com/external/omaha.git@master
Patch Set: Created 6 years, 2 months ago
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Index: base/thread_pool.h
diff --git a/base/thread_pool.h b/base/thread_pool.h
deleted file mode 100644
index a18f6f207dfe2b27f5ed8115ff820936dd32e6e0..0000000000000000000000000000000000000000
--- a/base/thread_pool.h
+++ /dev/null
@@ -1,88 +0,0 @@
-// Copyright 2004-2009 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.
-// ========================================================================
-
-#ifndef OMAHA_BASE_THREAD_POOL_H_
-#define OMAHA_BASE_THREAD_POOL_H_
-
-#include <windows.h>
-#include "base/basictypes.h"
-#include "omaha/base/scoped_any.h"
-
-namespace omaha {
-
-class UserWorkItem {
- public:
- UserWorkItem() : shutdown_event_(NULL) {}
- virtual ~UserWorkItem() {}
-
- // Template method interface
- void Process() { DoProcess(); }
-
- HANDLE shutdown_event() const { return shutdown_event_; }
- void set_shutdown_event(HANDLE shutdown_event) {
- shutdown_event_ = shutdown_event;
- }
-
- private:
- // Executes the work item.
- virtual void DoProcess() = 0;
-
- // It is the job of implementers to watch for the signaling of this event
- // and shutdown correctly. This event is set when the thread pool is closing.
- // Do not close this event as is owned by the thread pool.
- HANDLE shutdown_event_;
- DISALLOW_EVIL_CONSTRUCTORS(UserWorkItem);
-};
-
-class ThreadPool {
- public:
- ThreadPool();
-
- // The destructor might block for 'shutdown_delay'.
- ~ThreadPool();
-
- HRESULT Initialize(int shutdown_delay);
-
- // Returns true if any work items are still in progress.
- bool HasWorkItems() const { return (0 != work_item_count_); }
-
- // Adds a work item to the queue. If the add fails the ownership of the
- // work items remains with the caller.
- HRESULT QueueUserWorkItem(UserWorkItem* work_item, uint32 flags);
-
- private:
- // Calls UserWorkItem::Process() in the context of the worker thread.
- void ProcessWorkItem(UserWorkItem* work_item);
-
- // This is the thread callback required by the underlying windows API.
- static DWORD WINAPI ThreadProc(void* context);
-
- // Approximate number of work items in the pool.
- volatile LONG work_item_count_;
-
- // This event signals when the thread pool destructor is in progress.
- scoped_event shutdown_event_;
-
- // How many milliseconds to wait for the work items to finish when
- // the thread pool is shutting down. The shutdown delay resolution is ~10ms.
- int shutdown_delay_;
-
- DISALLOW_EVIL_CONSTRUCTORS(ThreadPool);
-};
-
-} // namespace omaha
-
-#endif // OMAHA_BASE_THREAD_POOL_H_
-
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