/usr/include/websocketpp/extensions/extension.hpp is in libwebsocketpp-dev 0.7.0-7.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (c) 2014, Peter Thorson. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the WebSocket++ Project nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef WEBSOCKETPP_EXTENSION_HPP
#define WEBSOCKETPP_EXTENSION_HPP
#include <websocketpp/common/cpp11.hpp>
#include <websocketpp/common/system_error.hpp>
#include <string>
#include <vector>
namespace websocketpp {
/**
* Some generic information about extensions
*
* Each extension object has an implemented flag. It can be retrieved by calling
* is_implemented(). This compile time flag indicates whether or not the object
* in question actually implements the extension or if it is a placeholder stub
*
* Each extension object also has an enabled flag. It can be retrieved by
* calling is_enabled(). This runtime flag indicates whether or not the
* extension has been negotiated for this connection.
*/
namespace extensions {
namespace error {
enum value {
/// Catch all
general = 1,
/// Extension disabled
disabled
};
class category : public lib::error_category {
public:
category() {}
const char *name() const _WEBSOCKETPP_NOEXCEPT_TOKEN_ {
return "websocketpp.extension";
}
std::string message(int value) const {
switch(value) {
case general:
return "Generic extension error";
case disabled:
return "Use of methods from disabled extension";
default:
return "Unknown permessage-compress error";
}
}
};
inline lib::error_category const & get_category() {
static category instance;
return instance;
}
inline lib::error_code make_error_code(error::value e) {
return lib::error_code(static_cast<int>(e), get_category());
}
} // namespace error
} // namespace extensions
} // namespace websocketpp
_WEBSOCKETPP_ERROR_CODE_ENUM_NS_START_
template<> struct is_error_code_enum
<websocketpp::extensions::error::value>
{
static const bool value = true;
};
_WEBSOCKETPP_ERROR_CODE_ENUM_NS_END_
#endif // WEBSOCKETPP_EXTENSION_HPP
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