Files
scylladb/core/scattered_message.hh
Nadav Har'El 20df45de44 scattered_message: Fix include loop
We had an include loop, which can cause problems in some cases:

1. iostream.hh #includes scattered_message.hh #includes reactor.hh
2. reactor.hh #includes iostream.hh

This patch fixes the loop be removing an unnecessary include.

Signed-off-by: Nadav Har'El <nyh@cloudius-systems.com>
2015-03-10 15:01:51 +02:00

106 lines
2.9 KiB
C++

/*
* This file is open source software, licensed to you under the terms
* of the Apache License, Version 2.0 (the "License"). See the NOTICE file
* distributed with this work for additional information regarding copyright
* ownership. You may not use this file except in compliance with the License.
*
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/*
* Copyright (C) 2014 Cloudius Systems, Ltd.
*/
#ifndef SCATTERED_MESSAGE_HH
#define SCATTERED_MESSAGE_HH
#include "core/deleter.hh"
#include "core/temporary_buffer.hh"
#include "net/packet.hh"
#include "sstring.hh"
#include <memory>
#include <vector>
#include <experimental/string_view>
template <typename CharType>
class scattered_message {
private:
using fragment = net::fragment;
using packet = net::packet;
using char_type = CharType;
packet _p;
public:
scattered_message() {}
scattered_message(scattered_message&&) = default;
scattered_message(const scattered_message&) = delete;
void append_static(const char_type* buf, size_t size) {
if (size) {
_p = packet(std::move(_p), fragment{(char_type*)buf, size}, deleter());
}
}
template <size_t N>
void append_static(const char_type(&s)[N]) {
append_static(s, N - 1);
}
void append_static(const char_type* s) {
append_static(s, strlen(s));
}
template <typename size_type, size_type max_size>
void append_static(const basic_sstring<char_type, size_type, max_size>& s) {
append_static(s.begin(), s.size());
}
void append_static(const std::experimental::string_view& s) {
append_static(s.data(), s.size());
}
template <typename size_type, size_type max_size>
void append(basic_sstring<char_type, size_type, max_size> s) {
if (s.size()) {
_p = packet(std::move(_p), std::move(s).release());
}
}
template <typename size_type, size_type max_size, typename Callback>
void append(const basic_sstring<char_type, size_type, max_size>& s, Callback callback) {
if (s.size()) {
_p = packet(std::move(_p), fragment{s.begin(), s.size()}, make_deleter(std::move(callback)));
}
}
void reserve(int n_frags) {
_p.reserve(n_frags);
}
packet release() && {
return std::move(_p);
}
template <typename Callback>
void on_delete(Callback callback) {
_p = packet(std::move(_p), std::move(callback));
}
operator bool() const {
return _p.len();
}
size_t size() {
return _p.len();
}
};
#endif