115 lines
2.8 KiB
C++
115 lines
2.8 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "CachePurgeLock.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsIFile.h"
|
|
#include "nsAppRunner.h"
|
|
#include "mozilla/MultiInstanceLock.h"
|
|
#include "nsLocalFile.h"
|
|
|
|
namespace mozilla::net {
|
|
|
|
NS_IMPL_ISUPPORTS(CachePurgeLock, nsICachePurgeLock)
|
|
|
|
static nsresult PrepareLockArguments(const nsACString& profileName,
|
|
nsCString& lockName,
|
|
nsString& appDirPath) {
|
|
nsresult rv;
|
|
|
|
nsCOMPtr<nsIFile> appFile = mozilla::GetNormalizedAppFile(nullptr);
|
|
if (!appFile) {
|
|
return NS_ERROR_NOT_AVAILABLE;
|
|
}
|
|
|
|
nsCOMPtr<nsIFile> appDirFile;
|
|
rv = appFile->GetParent(getter_AddRefs(appDirFile));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
rv = appDirFile->GetPath(appDirPath);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
lockName = profileName;
|
|
lockName.Append("-cachePurge");
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CachePurgeLock::GetLockFile(const nsACString& profileName, nsIFile** aResult) {
|
|
nsresult rv;
|
|
nsCString lockName;
|
|
nsString appDirPath;
|
|
rv = PrepareLockArguments(profileName, lockName, appDirPath);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
|
|
nsCString filePath;
|
|
if (!GetMultiInstanceLockFileName(lockName.get(), appDirPath.get(),
|
|
filePath)) {
|
|
return NS_ERROR_NOT_AVAILABLE;
|
|
}
|
|
|
|
nsCOMPtr<nsIFile> lockFile = new nsLocalFile();
|
|
rv = lockFile->InitWithNativePath(filePath);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
lockFile.forget(aResult);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CachePurgeLock::Lock(const nsACString& profileName) {
|
|
nsresult rv;
|
|
if (mLock != MULTI_INSTANCE_LOCK_HANDLE_ERROR) {
|
|
// Lock is already open.
|
|
return NS_OK;
|
|
}
|
|
|
|
nsCString lockName;
|
|
nsString appDirPath;
|
|
rv = PrepareLockArguments(profileName, lockName, appDirPath);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
|
|
mLock = mozilla::OpenMultiInstanceLock(lockName.get(), appDirPath.get());
|
|
if (mLock == MULTI_INSTANCE_LOCK_HANDLE_ERROR) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CachePurgeLock::IsOtherInstanceRunning(bool* aResult) {
|
|
if (NS_WARN_IF(XRE_GetProcessType() != GeckoProcessType_Default)) {
|
|
return NS_ERROR_SERVICE_NOT_AVAILABLE;
|
|
}
|
|
|
|
if (mLock == MULTI_INSTANCE_LOCK_HANDLE_ERROR) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
|
|
bool rv = mozilla::IsOtherInstanceRunning(mLock, aResult);
|
|
NS_ENSURE_TRUE(rv, NS_ERROR_FAILURE);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CachePurgeLock::Unlock() {
|
|
if (mLock == MULTI_INSTANCE_LOCK_HANDLE_ERROR) {
|
|
// Lock is already released.
|
|
return NS_OK;
|
|
}
|
|
|
|
mozilla::ReleaseMultiInstanceLock(mLock);
|
|
mLock = MULTI_INSTANCE_LOCK_HANDLE_ERROR;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
} // namespace mozilla::net
|