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/* <!-- copyright */
/*
* aria2 - The high speed download utility
*
* Copyright (C) 2010 Tatsuhiro Tsujikawa
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations
* including the two.
* You must obey the GNU General Public License in all respects
* for all of the code used other than OpenSSL. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you
* do not wish to do so, delete this exception statement from your
* version. If you delete this exception statement from all source
* files in the program, then also delete it here.
*/
/* copyright --> */
#include "SocketBuffer.h"
#include <cassert>
#include <algorithm>
#include "SocketCore.h"
#include "DlAbortEx.h"
#include "message.h"
#include "StringFormat.h"
namespace aria2 {
SocketBuffer::SocketBuffer(const SharedHandle<SocketCore>& socket):
_socket(socket), _offset(0) {}
SocketBuffer::~SocketBuffer()
{
std::for_each(_bufq.begin(), _bufq.end(),
std::mem_fun_ref(&BufEntry::deleteBuf));
}
void SocketBuffer::pushBytes(unsigned char* bytes, size_t len)
{
_bufq.push_back(BufEntry(bytes, len));
}
void SocketBuffer::pushStr(const std::string& data)
{
_bufq.push_back(BufEntry(data));
}
ssize_t SocketBuffer::send()
{
size_t totalslen = 0;
while(!_bufq.empty()) {
BufEntry& buf = _bufq[0];
const char* data;
ssize_t r;
if(buf.type == TYPE_BYTES) {
data = reinterpret_cast<const char*>(buf.bytes);
r = buf.bytesLen-_offset;
} else {
const std::string& str = *buf.str;
data = str.data();
r = str.size()-_offset;
}
ssize_t slen = _socket->writeData(data+_offset, r);
if(slen == 0 && !_socket->wantRead() && !_socket->wantWrite()) {
throw DL_ABORT_EX(StringFormat(EX_SOCKET_SEND,
"Connection closed.").str());
}
totalslen += slen;
if(slen < r) {
_offset += slen;
break;
} else {
_offset = 0;
buf.deleteBuf();
_bufq.pop_front();
}
}
return totalslen;
}
bool SocketBuffer::sendBufferIsEmpty() const
{
return _bufq.empty();
}
} // namespace aria2
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