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comparison: security/sandbox/win/src/win2k_threadpool.cc
security/sandbox/win/src/win2k_threadpool.cc
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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "sandbox/win/src/win2k_threadpool.h" | |
| 6 | |
| 7 #include "sandbox/win/src/win_utils.h" | |
| 8 | |
| 9 namespace sandbox { | |
| 10 | |
| 11 bool Win2kThreadPool::RegisterWait(const void* cookie, HANDLE waitable_object, | |
| 12 CrossCallIPCCallback callback, | |
| 13 void* context) { | |
| 14 if (0 == cookie) { | |
| 15 return false; | |
| 16 } | |
| 17 HANDLE pool_object = NULL; | |
| 18 // create a wait for a kernel object, with no timeout | |
| 19 if (!::RegisterWaitForSingleObject(&pool_object, waitable_object, callback, | |
| 20 context, INFINITE, WT_EXECUTEDEFAULT)) { | |
| 21 return false; | |
| 22 } | |
| 23 PoolObject pool_obj = {cookie, pool_object}; | |
| 24 AutoLock lock(&lock_); | |
| 25 pool_objects_.push_back(pool_obj); | |
| 26 return true; | |
| 27 } | |
| 28 | |
| 29 bool Win2kThreadPool::UnRegisterWaits(void* cookie) { | |
| 30 if (0 == cookie) { | |
| 31 return false; | |
| 32 } | |
| 33 AutoLock lock(&lock_); | |
| 34 bool success = true; | |
| 35 PoolObjects::iterator it = pool_objects_.begin(); | |
| 36 while (it != pool_objects_.end()) { | |
| 37 if (it->cookie == cookie) { | |
| 38 HANDLE wait = it->wait; | |
| 39 it = pool_objects_.erase(it); | |
| 40 success &= (::UnregisterWaitEx(wait, INVALID_HANDLE_VALUE) != 0); | |
| 41 } else { | |
| 42 ++it; | |
| 43 } | |
| 44 } | |
| 45 return success; | |
| 46 } | |
| 47 | |
| 48 size_t Win2kThreadPool::OutstandingWaits() { | |
| 49 AutoLock lock(&lock_); | |
| 50 return pool_objects_.size(); | |
| 51 } | |
| 52 | |
| 53 Win2kThreadPool::~Win2kThreadPool() { | |
| 54 // Here we used to unregister all the pool wait handles. Now, following the | |
| 55 // rest of the code we avoid lengthy or blocking calls given that the process | |
| 56 // is being torn down. | |
| 57 ::DeleteCriticalSection(&lock_); | |
| 58 } | |
| 59 | |
| 60 } // namespace sandbox |
