forked from mirrors/gecko-dev
e61507c3a3
This new method can be used to check if the nsIOutputStream has been closed without having data available to write. It should avoid blocking to discover this information. Differential Revision: https://phabricator.services.mozilla.com/D170696
61 lines
1.7 KiB
C++
61 lines
1.7 KiB
C++
/* -*- Mode: c++; c-basic-offset: 2; tab-width: 2; indent-tabs-mode: nil; -*-
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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 "GeckoViewOutputStream.h"
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#include "mozilla/fallible.h"
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using namespace mozilla;
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NS_IMPL_ISUPPORTS(GeckoViewOutputStream, nsIOutputStream);
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NS_IMETHODIMP
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GeckoViewOutputStream::Close() {
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mStream->SendEof();
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return NS_OK;
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}
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NS_IMETHODIMP
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GeckoViewOutputStream::Flush() { return NS_ERROR_NOT_IMPLEMENTED; }
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NS_IMETHODIMP
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GeckoViewOutputStream::StreamStatus() {
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return mStream->IsStreamClosed() ? NS_BASE_STREAM_CLOSED : NS_OK;
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}
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NS_IMETHODIMP
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GeckoViewOutputStream::Write(const char* buf, uint32_t count,
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uint32_t* retval) {
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jni::ByteArray::LocalRef buffer = jni::ByteArray::New(
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reinterpret_cast<const int8_t*>(buf), count, fallible);
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if (!buffer) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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if (NS_FAILED(mStream->AppendBuffer(buffer))) {
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// The stream was closed, abort reading this channel.
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return NS_BASE_STREAM_CLOSED;
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}
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// Return amount of bytes written
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*retval = count;
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return NS_OK;
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}
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NS_IMETHODIMP
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GeckoViewOutputStream::WriteFrom(nsIInputStream* fromStream, uint32_t count,
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uint32_t* retval) {
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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GeckoViewOutputStream::WriteSegments(nsReadSegmentFun reader, void* closure,
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uint32_t count, uint32_t* retval) {
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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GeckoViewOutputStream::IsNonBlocking(bool* retval) {
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*retval = true;
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return NS_OK;
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}
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