/usr/include/caf/channel.hpp is in libcaf-dev 0.13.2-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* ____ _ _____ *
* / ___| / \ | ___| C++ *
* | | / _ \ | |_ Actor *
* | |___ / ___ \| _| Framework *
* \____/_/ \_|_| *
* *
* Copyright (C) 2011 - 2015 *
* Dominik Charousset <dominik.charousset (at) haw-hamburg.de> *
* *
* Distributed under the terms and conditions of the BSD 3-Clause License or *
* (at your option) under the terms and conditions of the Boost Software *
* License 1.0. See accompanying files LICENSE and LICENSE_ALTERNATIVE. *
* *
* If you did not receive a copy of the license files, see *
* http://opensource.org/licenses/BSD-3-Clause and *
* http://www.boost.org/LICENSE_1_0.txt. *
******************************************************************************/
#ifndef CAF_CHANNEL_HPP
#define CAF_CHANNEL_HPP
#include <cstddef>
#include <type_traits>
#include "caf/intrusive_ptr.hpp"
#include "caf/fwd.hpp"
#include "caf/abstract_channel.hpp"
#include "caf/detail/comparable.hpp"
namespace caf {
class actor;
class group;
class execution_unit;
struct invalid_actor_t;
struct invalid_group_t;
/**
* A handle to instances of `abstract_channel`.
*/
class channel : detail::comparable<channel>,
detail::comparable<channel, actor>,
detail::comparable<channel, abstract_channel*> {
public:
template <class T, typename U>
friend T actor_cast(const U&);
channel() = default;
channel(const actor&);
channel(const group&);
channel(const invalid_actor_t&);
channel(const invalid_group_t&);
template <class T>
channel(intrusive_ptr<T> ptr,
typename std::enable_if<
std::is_base_of<abstract_channel, T>::value
>::type* = 0)
: m_ptr(ptr) {
// nop
}
channel(abstract_channel* ptr);
inline explicit operator bool() const {
return static_cast<bool>(m_ptr);
}
inline bool operator!() const {
return !m_ptr;
}
inline abstract_channel* operator->() const {
return m_ptr.get();
}
inline abstract_channel& operator*() const {
return *m_ptr;
}
intptr_t compare(const channel& other) const;
intptr_t compare(const actor& other) const;
intptr_t compare(const abstract_channel* other) const;
static intptr_t compare(const abstract_channel* lhs,
const abstract_channel* rhs);
private:
inline abstract_channel* get() const {
return m_ptr.get();
}
abstract_channel_ptr m_ptr;
};
} // namespace caf
#endif // CAF_CHANNEL_HPP
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