gecko-dev/netwerk/base/SimpleChannel.h
Emilio Cobos Álvarez fffb25b74f Bug 1465585: Switch from mozilla::Move to std::move. r=froydnj
This was done automatically replacing:

  s/mozilla::Move/std::move/
  s/ Move(/ std::move(/
  s/(Move(/(std::move(/

Removing the 'using mozilla::Move;' lines.

And then with a few manual fixups, see the bug for the split series..

MozReview-Commit-ID: Jxze3adipUh
2018-06-01 10:45:27 +02:00

111 lines
3.5 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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/. */
#ifndef SimpleChannel_h
#define SimpleChannel_h
#include "mozilla/ResultExtensions.h"
#include "mozilla/UniquePtr.h"
#include "nsCOMPtr.h"
class nsIChannel;
class nsIInputStream;
class nsILoadInfo;
class nsIRequest;
class nsIStreamListener;
class nsIURI;
//-----------------------------------------------------------------------------
namespace mozilla {
using InputStreamOrReason = Result<nsCOMPtr<nsIInputStream>, nsresult>;
using RequestOrReason = Result<nsCOMPtr<nsIRequest>, nsresult>;
namespace net {
class SimpleChannelCallbacks
{
public:
virtual InputStreamOrReason OpenContentStream(bool async, nsIChannel* channel) = 0;
virtual RequestOrReason StartAsyncRead(nsIStreamListener* stream, nsIChannel* channel) = 0;
virtual ~SimpleChannelCallbacks() = default;
};
template <typename F1, typename F2, typename T>
class SimpleChannelCallbacksImpl final : public SimpleChannelCallbacks
{
public:
SimpleChannelCallbacksImpl(F1&& aStartAsyncRead, F2&& aOpenContentStream, T* context)
: mStartAsyncRead(aStartAsyncRead)
, mOpenContentStream(aOpenContentStream)
, mContext(context)
{}
virtual ~SimpleChannelCallbacksImpl() = default;
virtual InputStreamOrReason OpenContentStream(bool async, nsIChannel* channel) override
{
return mOpenContentStream(async, channel, mContext);
}
virtual RequestOrReason StartAsyncRead(nsIStreamListener* listener, nsIChannel* channel) override
{
return mStartAsyncRead(listener, channel, mContext);
}
private:
F1 mStartAsyncRead;
F2 mOpenContentStream;
RefPtr<T> mContext;
};
already_AddRefed<nsIChannel>
NS_NewSimpleChannelInternal(nsIURI* aURI, nsILoadInfo* aLoadInfo, UniquePtr<SimpleChannelCallbacks>&& aCallbacks);
} // namespace net
} // namespace mozilla
/**
* Creates a simple channel which wraps an input stream created by the given
* callbacks. The callbacks are not called until the underlying AsyncOpen2 or
* Open2 methods are called, and correspond to the nsBaseChannel::StartAsyncRead
* and nsBaseChannel::OpenContentStream methods of the same names.
*
* The last two arguments of each callback are the created channel instance,
* and the ref-counted context object passed to NS_NewSimpleChannel. A strong
* reference to that object is guaranteed to be kept alive until after a
* callback successfully completes.
*/
template <typename T, typename F1, typename F2>
inline already_AddRefed<nsIChannel>
NS_NewSimpleChannel(nsIURI* aURI, nsILoadInfo* aLoadInfo, T* context, F1&& aStartAsyncRead, F2&& aOpenContentStream)
{
using namespace mozilla;
auto callbacks = MakeUnique<net::SimpleChannelCallbacksImpl<F1, F2, T>>(
std::move(aStartAsyncRead), std::move(aOpenContentStream), context);
return net::NS_NewSimpleChannelInternal(aURI, aLoadInfo, std::move(callbacks));
}
template <typename T, typename F1>
inline already_AddRefed<nsIChannel>
NS_NewSimpleChannel(nsIURI* aURI, nsILoadInfo* aLoadInfo, T* context, F1&& aStartAsyncRead)
{
using namespace mozilla;
auto openContentStream = [] (bool async, nsIChannel* channel, T* context) {
return Err(NS_ERROR_NOT_IMPLEMENTED);
};
return NS_NewSimpleChannel(
aURI, aLoadInfo, context, std::move(aStartAsyncRead), std::move(openContentStream));
}
#endif // SimpleChannel_h