135 lines
4.1 KiB
C++
135 lines
4.1 KiB
C++
/*
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* Copyright 2004 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "rtc_base/stream.h"
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#include <errno.h>
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#include <string.h>
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#include <algorithm>
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#include <string>
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#include "rtc_base/checks.h"
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#include "rtc_base/location.h"
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#include "rtc_base/thread.h"
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namespace rtc {
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///////////////////////////////////////////////////////////////////////////////
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// StreamInterface
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///////////////////////////////////////////////////////////////////////////////
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StreamInterface::~StreamInterface() {}
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StreamResult StreamInterface::WriteAll(const void* data,
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size_t data_len,
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size_t* written,
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int* error) {
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StreamResult result = SR_SUCCESS;
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size_t total_written = 0, current_written;
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while (total_written < data_len) {
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result = Write(static_cast<const char*>(data) + total_written,
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data_len - total_written, ¤t_written, error);
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if (result != SR_SUCCESS)
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break;
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total_written += current_written;
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}
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if (written)
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*written = total_written;
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return result;
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}
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void StreamInterface::PostEvent(Thread* t, int events, int err) {
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t->Post(RTC_FROM_HERE, this, MSG_POST_EVENT,
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new StreamEventData(events, err));
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}
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void StreamInterface::PostEvent(int events, int err) {
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PostEvent(Thread::Current(), events, err);
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}
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bool StreamInterface::Flush() {
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return false;
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}
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StreamInterface::StreamInterface() {}
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void StreamInterface::OnMessage(Message* msg) {
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if (MSG_POST_EVENT == msg->message_id) {
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StreamEventData* pe = static_cast<StreamEventData*>(msg->pdata);
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SignalEvent(this, pe->events, pe->error);
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delete msg->pdata;
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}
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}
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///////////////////////////////////////////////////////////////////////////////
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// StreamAdapterInterface
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///////////////////////////////////////////////////////////////////////////////
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StreamAdapterInterface::StreamAdapterInterface(StreamInterface* stream,
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bool owned)
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: stream_(stream), owned_(owned) {
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if (nullptr != stream_)
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stream_->SignalEvent.connect(this, &StreamAdapterInterface::OnEvent);
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}
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StreamState StreamAdapterInterface::GetState() const {
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return stream_->GetState();
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}
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StreamResult StreamAdapterInterface::Read(void* buffer,
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size_t buffer_len,
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size_t* read,
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int* error) {
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return stream_->Read(buffer, buffer_len, read, error);
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}
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StreamResult StreamAdapterInterface::Write(const void* data,
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size_t data_len,
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size_t* written,
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int* error) {
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return stream_->Write(data, data_len, written, error);
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}
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void StreamAdapterInterface::Close() {
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stream_->Close();
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}
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bool StreamAdapterInterface::Flush() {
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return stream_->Flush();
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}
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void StreamAdapterInterface::Attach(StreamInterface* stream, bool owned) {
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if (nullptr != stream_)
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stream_->SignalEvent.disconnect(this);
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if (owned_)
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delete stream_;
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stream_ = stream;
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owned_ = owned;
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if (nullptr != stream_)
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stream_->SignalEvent.connect(this, &StreamAdapterInterface::OnEvent);
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}
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StreamInterface* StreamAdapterInterface::Detach() {
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if (nullptr != stream_)
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stream_->SignalEvent.disconnect(this);
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StreamInterface* stream = stream_;
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stream_ = nullptr;
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return stream;
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}
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StreamAdapterInterface::~StreamAdapterInterface() {
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if (owned_)
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delete stream_;
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}
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void StreamAdapterInterface::OnEvent(StreamInterface* stream,
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int events,
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int err) {
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SignalEvent(this, events, err);
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}
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} // namespace rtc
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