SocketStreamHandleBase.cpp [plain text]
#include "config.h"
#include "SocketStreamHandleBase.h"
#include "SocketStreamHandle.h"
#include "SocketStreamHandleClient.h"
namespace WebCore {
const unsigned int bufferSize = 100 * 1024 * 1024;
SocketStreamHandleBase::SocketStreamHandleBase(const URL& url, SocketStreamHandleClient* client)
: m_url(url)
, m_client(client)
, m_state(Connecting)
{
}
SocketStreamHandleBase::SocketStreamState SocketStreamHandleBase::state() const
{
return m_state;
}
bool SocketStreamHandleBase::send(const char* data, int length)
{
if (m_state == Connecting || m_state == Closing)
return false;
if (!m_buffer.isEmpty()) {
if (m_buffer.size() + length > bufferSize) {
return false;
}
m_buffer.append(data, length);
if (m_client)
m_client->didUpdateBufferedAmount(static_cast<SocketStreamHandle*>(this), bufferedAmount());
return true;
}
int bytesWritten = 0;
if (m_state == Open)
bytesWritten = platformSend(data, length);
if (bytesWritten < 0)
return false;
if (m_buffer.size() + length - bytesWritten > bufferSize) {
return false;
}
if (bytesWritten < length) {
m_buffer.append(data + bytesWritten, length - bytesWritten);
if (m_client)
m_client->didUpdateBufferedAmount(static_cast<SocketStreamHandle*>(this), bufferedAmount());
}
return true;
}
void SocketStreamHandleBase::close()
{
if (m_state == Closed)
return;
m_state = Closing;
if (!m_buffer.isEmpty())
return;
disconnect();
}
void SocketStreamHandleBase::disconnect()
{
Ref<SocketStreamHandle> protect(*static_cast<SocketStreamHandle*>(this));
platformClose();
m_state = Closed;
}
void SocketStreamHandleBase::setClient(SocketStreamHandleClient* client)
{
ASSERT(!client || (!m_client && m_state == Connecting));
m_client = client;
}
bool SocketStreamHandleBase::sendPendingData()
{
if (m_state != Open && m_state != Closing)
return false;
if (m_buffer.isEmpty()) {
if (m_state == Open)
return false;
if (m_state == Closing) {
disconnect();
return false;
}
}
bool pending;
do {
int bytesWritten = platformSend(m_buffer.firstBlockData(), m_buffer.firstBlockSize());
pending = bytesWritten != static_cast<int>(m_buffer.firstBlockSize());
if (bytesWritten <= 0)
return false;
ASSERT(m_buffer.size() - bytesWritten <= bufferSize);
m_buffer.consume(bytesWritten);
} while (!pending && !m_buffer.isEmpty());
if (m_client)
m_client->didUpdateBufferedAmount(static_cast<SocketStreamHandle*>(this), bufferedAmount());
return true;
}
}