26d2ebd48e
An IPCBlobInputStream can be sent back to the parent process (not implemented in this patch). When this is done, we basically send only the internal ID. From this ID, we can retrieve the original inputStream because any IPCBlobInputStreamParent actor has previously registered it into a singleton: IPCBlobInputStreamStorage. So, if we have a IPCBlobInputStreamParent, we have an inputStream, and this inputStream is known by IPCBlobInputStreamStorage. This will be useful in the next patches.
58 lines
1.3 KiB
C++
58 lines
1.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* 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 "IPCBlobInputStreamStorage.h"
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#include "mozilla/ClearOnShutdown.h"
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#include "mozilla/StaticMutex.h"
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#include "mozilla/StaticPtr.h"
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namespace mozilla {
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namespace dom {
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namespace {
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StaticMutex gMutex;
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StaticRefPtr<IPCBlobInputStreamStorage> gStorage;
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}
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IPCBlobInputStreamStorage::~IPCBlobInputStreamStorage()
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{}
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/* static */ IPCBlobInputStreamStorage*
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IPCBlobInputStreamStorage::Get()
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{
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return gStorage;
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}
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/* static */ void
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IPCBlobInputStreamStorage::Initialize()
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{
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MOZ_ASSERT(!gStorage);
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gStorage = new IPCBlobInputStreamStorage();
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ClearOnShutdown(&gStorage);
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}
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void
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IPCBlobInputStreamStorage::AddStream(nsIInputStream* aInputStream,
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const nsID& aID)
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{
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MOZ_ASSERT(aInputStream);
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mozilla::StaticMutexAutoLock lock(gMutex);
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mStorage.Put(aID, aInputStream);
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}
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void
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IPCBlobInputStreamStorage::ForgetStream(const nsID& aID)
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{
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mozilla::StaticMutexAutoLock lock(gMutex);
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mStorage.Remove(aID);
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}
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} // namespace dom
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} // namespace mozilla
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