genode/repos/os/include/net/port.h
Christian Helmuth 2eb8c5e21a net: move ascii_to() into Net namespace
The combination of Net::Mac_address and
Genode::ascii_to(Net::Mac_address) required shaky quirks in several
places because GCC is not able to resolve the ascii_to overload if
base/xml_node.h was included to early. The current solution moves the
several ascii_to overloads "closer" to the Net types by putting them
into the Net namespace, where GCC reliably picks them up.

Hence, co-locating the ascii_to() utility with the overload type in the
same scope/namespace is good practice.

This patch removes the now obsolete <nic/xml_node.h> header file.
2020-09-17 10:13:22 +02:00

60 lines
1.2 KiB
C++

/*
* \brief Network port
* \author Martin Stein
* \date 2016-08-19
*/
/*
* Copyright (C) 2016-2017 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU Affero General Public License version 3.
*/
#ifndef _NET__PORT_H_
#define _NET__PORT_H_
/* Genode includes */
#include <base/stdint.h>
#include <base/output.h>
#include <util/string.h>
namespace Net {
class Port;
static inline Genode::size_t ascii_to(const char *, Net::Port &);
}
/**
* This class makes it clear what the port integer-value means at an interface
*/
struct Net::Port
{
Genode::uint16_t value;
explicit Port(Genode::uint16_t const value) : value(value) { }
bool operator == (Port const &other) const { return value == other.value; }
void print(Genode::Output &out) const { Genode::print(out, value); }
}
__attribute__((packed));
/**
* Read port value from string
*
* \return number of consumed characters
*/
Genode::size_t Net::ascii_to(const char *s, Net::Port &result)
{
using namespace Genode;
unsigned value = 0;
size_t const consumed = ascii_to_unsigned(s, value, 0);
result = Net::Port(value);
return consumed;
}
#endif /* _NET__PORT_H_ */