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comparison: security/manager/ssl/src/nsPSMBackgroundThread.cpp
security/manager/ssl/src/nsPSMBackgroundThread.cpp
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:3a70d6494de6 |
|---|---|
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 #include "nsPSMBackgroundThread.h" | |
| 6 #include "nsThreadUtils.h" | |
| 7 | |
| 8 using namespace mozilla; | |
| 9 | |
| 10 void nsPSMBackgroundThread::nsThreadRunner(void *arg) | |
| 11 { | |
| 12 nsPSMBackgroundThread *self = static_cast<nsPSMBackgroundThread *>(arg); | |
| 13 PR_SetCurrentThreadName(self->mName.BeginReading()); | |
| 14 self->Run(); | |
| 15 } | |
| 16 | |
| 17 nsPSMBackgroundThread::nsPSMBackgroundThread() | |
| 18 : mThreadHandle(nullptr), | |
| 19 mMutex("nsPSMBackgroundThread.mMutex"), | |
| 20 mCond(mMutex, "nsPSMBackgroundThread.mCond"), | |
| 21 mExitState(ePSMThreadRunning) | |
| 22 { | |
| 23 } | |
| 24 | |
| 25 nsresult nsPSMBackgroundThread::startThread(const nsCSubstring & name) | |
| 26 { | |
| 27 mName = name; | |
| 28 | |
| 29 mThreadHandle = PR_CreateThread(PR_USER_THREAD, nsThreadRunner, static_cast<void*>(this), | |
| 30 PR_PRIORITY_NORMAL, PR_GLOBAL_THREAD, PR_JOINABLE_THREAD, 0); | |
| 31 | |
| 32 NS_ASSERTION(mThreadHandle, "Could not create nsPSMBackgroundThread\n"); | |
| 33 | |
| 34 if (!mThreadHandle) | |
| 35 return NS_ERROR_OUT_OF_MEMORY; | |
| 36 | |
| 37 return NS_OK; | |
| 38 } | |
| 39 | |
| 40 nsPSMBackgroundThread::~nsPSMBackgroundThread() | |
| 41 { | |
| 42 } | |
| 43 | |
| 44 bool | |
| 45 nsPSMBackgroundThread::exitRequested(const MutexAutoLock & /*proofOfLock*/) const | |
| 46 { | |
| 47 return exitRequestedNoLock(); | |
| 48 } | |
| 49 | |
| 50 nsresult | |
| 51 nsPSMBackgroundThread::postStoppedEventToMainThread( | |
| 52 MutexAutoLock const & /*proofOfLock*/) | |
| 53 { | |
| 54 NS_ASSERTION(PR_GetCurrentThread() == mThreadHandle, | |
| 55 "Background thread stopped from another thread"); | |
| 56 | |
| 57 mExitState = ePSMThreadStopped; | |
| 58 // requestExit is waiting for an event, so give it one. | |
| 59 return NS_DispatchToMainThread(new nsRunnable()); | |
| 60 } | |
| 61 | |
| 62 void nsPSMBackgroundThread::requestExit() | |
| 63 { | |
| 64 NS_ASSERTION(NS_IsMainThread(), | |
| 65 "nsPSMBackgroundThread::requestExit called off main thread."); | |
| 66 | |
| 67 if (!mThreadHandle) | |
| 68 return; | |
| 69 | |
| 70 { | |
| 71 MutexAutoLock threadLock(mMutex); | |
| 72 if (mExitState < ePSMThreadStopRequested) { | |
| 73 mExitState = ePSMThreadStopRequested; | |
| 74 mCond.NotifyAll(); | |
| 75 } | |
| 76 } | |
| 77 | |
| 78 nsCOMPtr<nsIThread> mainThread = do_GetCurrentThread(); | |
| 79 for (;;) { | |
| 80 { | |
| 81 MutexAutoLock threadLock(mMutex); | |
| 82 if (mExitState == ePSMThreadStopped) | |
| 83 break; | |
| 84 } | |
| 85 NS_ProcessPendingEvents(mainThread, PR_MillisecondsToInterval(50)); | |
| 86 } | |
| 87 | |
| 88 PR_JoinThread(mThreadHandle); | |
| 89 mThreadHandle = nullptr; | |
| 90 } |
