gecko-dev/dom/quota/QuotaRequests.cpp

313 строки
5.8 KiB
C++
Исходник Обычный вид История

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "QuotaRequests.h"
#include "ActorsChild.h"
#include "nsIQuotaCallbacks.h"
namespace mozilla {
namespace dom {
namespace quota {
RequestBase::RequestBase()
: mResultCode(NS_OK)
, mHaveResultOrErrorCode(false)
{
#ifdef DEBUG
mOwningThread = PR_GetCurrentThread();
#endif
AssertIsOnOwningThread();
}
RequestBase::RequestBase(nsIPrincipal* aPrincipal)
: mPrincipal(aPrincipal)
, mResultCode(NS_OK)
, mHaveResultOrErrorCode(false)
{
#ifdef DEBUG
mOwningThread = PR_GetCurrentThread();
#endif
AssertIsOnOwningThread();
}
#ifdef DEBUG
void
RequestBase::AssertIsOnOwningThread() const
{
MOZ_ASSERT(mOwningThread);
MOZ_ASSERT(PR_GetCurrentThread() == mOwningThread);
}
#endif // DEBUG
void
RequestBase::SetError(nsresult aRv)
{
AssertIsOnOwningThread();
MOZ_ASSERT(mResultCode == NS_OK);
MOZ_ASSERT(!mHaveResultOrErrorCode);
mResultCode = aRv;
mHaveResultOrErrorCode = true;
FireCallback();
}
NS_IMPL_CYCLE_COLLECTION_0(RequestBase)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(RequestBase)
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTING_ADDREF(RequestBase)
NS_IMPL_CYCLE_COLLECTING_RELEASE(RequestBase)
NS_IMETHODIMP
RequestBase::GetPrincipal(nsIPrincipal** aPrincipal)
{
AssertIsOnOwningThread();
MOZ_ASSERT(aPrincipal);
NS_IF_ADDREF(*aPrincipal = mPrincipal);
return NS_OK;
}
NS_IMETHODIMP
RequestBase::GetResultCode(nsresult* aResultCode)
{
AssertIsOnOwningThread();
MOZ_ASSERT(aResultCode);
if (!mHaveResultOrErrorCode) {
return NS_ERROR_FAILURE;
}
*aResultCode = mResultCode;
return NS_OK;
}
UsageRequest::UsageRequest(nsIPrincipal* aPrincipal,
nsIQuotaUsageCallback* aCallback)
: RequestBase(aPrincipal)
, mCallback(aCallback)
, mUsage(0)
, mFileUsage(0)
, mLimit(0)
, mBackgroundActor(nullptr)
, mCanceled(false)
{
AssertIsOnOwningThread();
MOZ_ASSERT(aPrincipal);
MOZ_ASSERT(aCallback);
}
UsageRequest::~UsageRequest()
{
AssertIsOnOwningThread();
}
void
UsageRequest::SetBackgroundActor(QuotaUsageRequestChild* aBackgroundActor)
{
AssertIsOnOwningThread();
MOZ_ASSERT(aBackgroundActor);
MOZ_ASSERT(!mBackgroundActor);
mBackgroundActor = aBackgroundActor;
if (mCanceled) {
mBackgroundActor->SendCancel();
}
}
void
UsageRequest::SetResult(uint64_t aUsage, uint64_t aFileUsage, uint64_t aLimit)
{
AssertIsOnOwningThread();
MOZ_ASSERT(!mHaveResultOrErrorCode);
mUsage = aUsage;
mFileUsage = aFileUsage;
mLimit = aLimit;
mHaveResultOrErrorCode = true;
FireCallback();
}
NS_IMPL_CYCLE_COLLECTION_INHERITED(UsageRequest, RequestBase, mCallback)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(UsageRequest)
NS_INTERFACE_MAP_ENTRY(nsIQuotaUsageRequest)
NS_INTERFACE_MAP_END_INHERITING(RequestBase)
NS_IMPL_ADDREF_INHERITED(UsageRequest, RequestBase)
NS_IMPL_RELEASE_INHERITED(UsageRequest, RequestBase)
NS_IMETHODIMP
UsageRequest::GetUsage(uint64_t* aUsage)
{
AssertIsOnOwningThread();
if (!mHaveResultOrErrorCode) {
return NS_ERROR_FAILURE;
}
*aUsage = mUsage;
return NS_OK;
}
NS_IMETHODIMP
UsageRequest::GetFileUsage(uint64_t* aFileUsage)
{
AssertIsOnOwningThread();
MOZ_ASSERT(aFileUsage);
if (!mHaveResultOrErrorCode) {
return NS_ERROR_FAILURE;
}
*aFileUsage = mFileUsage;
return NS_OK;
}
NS_IMETHODIMP
UsageRequest::GetLimit(uint64_t* aLimit)
{
AssertIsOnOwningThread();
MOZ_ASSERT(aLimit);
if (!mHaveResultOrErrorCode) {
return NS_ERROR_FAILURE;
}
*aLimit = mLimit;
return NS_OK;
}
NS_IMETHODIMP
UsageRequest::GetCallback(nsIQuotaUsageCallback** aCallback)
{
AssertIsOnOwningThread();
MOZ_ASSERT(aCallback);
NS_IF_ADDREF(*aCallback = mCallback);
return NS_OK;
}
NS_IMETHODIMP
UsageRequest::SetCallback(nsIQuotaUsageCallback* aCallback)
{
AssertIsOnOwningThread();
mCallback = aCallback;
return NS_OK;
}
NS_IMETHODIMP
UsageRequest::Cancel()
{
AssertIsOnOwningThread();
if (mCanceled) {
NS_WARNING("Canceled more than once?!");
return NS_ERROR_UNEXPECTED;
}
if (mBackgroundActor) {
mBackgroundActor->SendCancel();
}
mCanceled = true;
return NS_OK;
}
void
UsageRequest::FireCallback()
{
AssertIsOnOwningThread();
MOZ_ASSERT(mCallback);
mCallback->OnUsageResult(this);
// Clean up.
mCallback = nullptr;
}
Request::Request()
{
AssertIsOnOwningThread();
}
Request::Request(nsIPrincipal* aPrincipal)
: RequestBase(aPrincipal)
{
AssertIsOnOwningThread();
}
Request::~Request()
{
AssertIsOnOwningThread();
}
void
Request::SetResult()
{
AssertIsOnOwningThread();
MOZ_ASSERT(!mHaveResultOrErrorCode);
mHaveResultOrErrorCode = true;
FireCallback();
}
NS_IMPL_CYCLE_COLLECTION_INHERITED(Request, RequestBase, mCallback)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(Request)
NS_INTERFACE_MAP_ENTRY(nsIQuotaRequest)
NS_INTERFACE_MAP_END_INHERITING(RequestBase)
NS_IMPL_ADDREF_INHERITED(mozilla::dom::quota::Request, RequestBase)
NS_IMPL_RELEASE_INHERITED(mozilla::dom::quota::Request, RequestBase)
NS_IMETHODIMP
Request::GetCallback(nsIQuotaCallback** aCallback)
{
AssertIsOnOwningThread();
MOZ_ASSERT(aCallback);
NS_IF_ADDREF(*aCallback = mCallback);
return NS_OK;
}
NS_IMETHODIMP
Request::SetCallback(nsIQuotaCallback* aCallback)
{
AssertIsOnOwningThread();
mCallback = aCallback;
return NS_OK;
}
void
Request::FireCallback()
{
AssertIsOnOwningThread();
if (mCallback) {
mCallback->OnComplete(this);
// Clean up.
mCallback = nullptr;
}
}
} // namespace quota
} // namespace dom
} // namespace mozilla