зеркало из https://github.com/mozilla/gecko-dev.git
77 строки
1.8 KiB
C++
77 строки
1.8 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "CachePurgeLock.h"
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#include "nsCOMPtr.h"
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#include "nsIFile.h"
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#include "nsAppRunner.h"
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#include "mozilla/MultiInstanceLock.h"
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namespace mozilla::net {
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NS_IMPL_ISUPPORTS(CachePurgeLock, nsICachePurgeLock)
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NS_IMETHODIMP
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CachePurgeLock::Lock(const nsACString& profileName) {
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nsresult rv;
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if (mLock != MULTI_INSTANCE_LOCK_HANDLE_ERROR) {
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// Lock is already open.
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return NS_OK;
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}
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nsCOMPtr<nsIFile> appFile = mozilla::GetNormalizedAppFile(nullptr);
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if (!appFile) {
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return NS_ERROR_NOT_AVAILABLE;
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}
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nsCOMPtr<nsIFile> appDirFile;
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rv = appFile->GetParent(getter_AddRefs(appDirFile));
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NS_ENSURE_SUCCESS(rv, rv);
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nsAutoString appDirPath;
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rv = appDirFile->GetPath(appDirPath);
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NS_ENSURE_SUCCESS(rv, rv);
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nsAutoCString lockName(profileName);
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lockName.Append("-cachePurge");
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mLock = mozilla::OpenMultiInstanceLock(lockName.get(), appDirPath.get());
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if (mLock == MULTI_INSTANCE_LOCK_HANDLE_ERROR) {
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return NS_ERROR_FAILURE;
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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CachePurgeLock::IsOtherInstanceRunning(bool* aResult) {
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if (NS_WARN_IF(XRE_GetProcessType() != GeckoProcessType_Default)) {
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return NS_ERROR_SERVICE_NOT_AVAILABLE;
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}
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if (mLock == MULTI_INSTANCE_LOCK_HANDLE_ERROR) {
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return NS_ERROR_NOT_INITIALIZED;
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}
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bool rv = mozilla::IsOtherInstanceRunning(mLock, aResult);
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NS_ENSURE_TRUE(rv, NS_ERROR_FAILURE);
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return NS_OK;
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}
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NS_IMETHODIMP
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CachePurgeLock::Unlock() {
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if (mLock == MULTI_INSTANCE_LOCK_HANDLE_ERROR) {
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// Lock is already released.
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return NS_OK;
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}
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mozilla::ReleaseMultiInstanceLock(mLock);
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mLock = MULTI_INSTANCE_LOCK_HANDLE_ERROR;
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return NS_OK;
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}
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} // namespace mozilla::net
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