ClickHouse/dbms/src/IO/WriteBufferFromPocoSocket.cpp

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#include <Poco/Net/NetException.h>
#include <DB/Common/Exception.h>
#include <DB/IO/WriteBufferFromPocoSocket.h>
#include <DB/Common/NetException.h>
namespace DB
{
namespace ErrorCodes
{
extern const int NETWORK_ERROR;
extern const int SOCKET_TIMEOUT;
extern const int CANNOT_WRITE_TO_SOCKET;
}
void WriteBufferFromPocoSocket::nextImpl()
{
if (!offset())
return;
size_t bytes_written = 0;
while (bytes_written < offset())
{
ssize_t res = 0;
/// Add more details to exceptions.
try
{
res = socket.impl()->sendBytes(working_buffer.begin() + bytes_written, offset() - bytes_written);
}
catch (const Poco::Net::NetException & e)
{
throw NetException(e.displayText() + " while writing to socket (" + peer_address.toString() + ")", ErrorCodes::NETWORK_ERROR);
}
catch (const Poco::TimeoutException & e)
{
throw NetException("Timeout exceeded while writing to socket (" + peer_address.toString() + ")", ErrorCodes::SOCKET_TIMEOUT);
}
catch (const Poco::IOException & e)
{
throw NetException(e.displayText(), " while reading from socket (" + peer_address.toString() + ")", ErrorCodes::NETWORK_ERROR);
}
if (res < 0)
throw NetException("Cannot write to socket (" + peer_address.toString() + ")", ErrorCodes::CANNOT_WRITE_TO_SOCKET);
bytes_written += res;
}
}
WriteBufferFromPocoSocket::WriteBufferFromPocoSocket(Poco::Net::Socket & socket_, size_t buf_size)
: BufferWithOwnMemory<WriteBuffer>(buf_size), socket(socket_), peer_address(socket.peerAddress())
{
}
WriteBufferFromPocoSocket::~WriteBufferFromPocoSocket()
{
try
{
next();
}
catch (...)
{
tryLogCurrentException(__PRETTY_FUNCTION__);
}
}
}