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