Source code

Revision control

Copy as Markdown

Other Tools

/* -*- 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 "fs/FileSystemAsyncCopy.h"
#include "fs/FileSystemConstants.h"
#include "mozilla/MozPromise.h"
#include "mozilla/dom/Promise.h"
#include "mozilla/dom/quota/QuotaCommon.h"
#include "mozilla/dom/quota/ResultExtensions.h"
namespace mozilla::dom::fs {
nsresult AsyncCopy(nsIInputStream* aSource, nsIOutputStream* aSink,
nsISerialEventTarget* aIOTarget, const nsAsyncCopyMode aMode,
const bool aCloseSource, const bool aCloseSink,
std::function<void(uint32_t)>&& aProgressCallback,
MoveOnlyFunction<void(nsresult)>&& aCompleteCallback) {
struct CallbackClosure {
CallbackClosure(std::function<void(uint32_t)>&& aProgressCallback,
MoveOnlyFunction<void(nsresult)>&& aCompleteCallback) {
mProgressCallbackWrapper = MakeUnique<std::function<void(uint32_t)>>(
[progressCallback = std::move(aProgressCallback)](uint32_t count) {
progressCallback(count);
});
mCompleteCallbackWrapper = MakeUnique<MoveOnlyFunction<void(nsresult)>>(
[completeCallback =
std::move(aCompleteCallback)](nsresult rv) mutable {
auto callback = std::move(completeCallback);
callback(rv);
});
}
UniquePtr<std::function<void(uint32_t)>> mProgressCallbackWrapper;
UniquePtr<MoveOnlyFunction<void(nsresult)>> mCompleteCallbackWrapper;
};
auto* callbackClosure = new CallbackClosure(std::move(aProgressCallback),
std::move(aCompleteCallback));
QM_TRY(
MOZ_TO_RESULT(NS_AsyncCopy(
aSource, aSink, aIOTarget, aMode, kStreamCopyBlockSize,
[](void* aClosure, nsresult aRv) {
auto* callbackClosure = static_cast<CallbackClosure*>(aClosure);
(*callbackClosure->mCompleteCallbackWrapper)(aRv);
delete callbackClosure;
},
callbackClosure, aCloseSource, aCloseSink, /* aCopierCtx */ nullptr,
[](void* aClosure, uint32_t aCount) {
auto* callbackClosure = static_cast<CallbackClosure*>(aClosure);
(*callbackClosure->mProgressCallbackWrapper)(aCount);
})),
[callbackClosure](nsresult rv) {
delete callbackClosure;
return rv;
});
return NS_OK;
}
} // namespace mozilla::dom::fs