suyu/src/core/network/network.h
comex 0791082b43 network, sockets: Replace POLL_IN, POLL_OUT, etc. constants with an enum class PollEvents
Actually, two enum classes, since for some reason there are two separate
yet identical `PollFD` types used in the codebase.  I get that one is
ABI-compatible with the Switch while the other is an abstract type used
for the host, but why not use `WSAPOLLFD` directly for the latter?

Anyway, why make this change?  Because on Apple platforms, `POLL_IN`,
`POLL_OUT`, etc. (with an underscore) are defined as macros in
<sys/signal.h>.  (This is inherited from FreeBSD.)  So defining
a variable with the same name causes a compile error.

I could just rename the variables, but while I was at it I thought I
might as well switch to an enum for stronger typing.

Also, change the type used for values copied directly to/from the
`events` and `revents` fields of the host *native*
`pollfd`/`WSASPOLLFD`, from `u32` to `short`, as `short` is the correct
canonical type on both Unix and Windows.
2020-12-06 19:14:42 -05:00

94 lines
1.5 KiB
C++

// Copyright 2020 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <utility>
#include "common/common_types.h"
namespace Network {
class Socket;
/// Error code for network functions
enum class Errno {
SUCCESS,
BADF,
INVAL,
MFILE,
NOTCONN,
AGAIN,
};
/// Address families
enum class Domain {
INET, ///< Address family for IPv4
};
/// Socket types
enum class Type {
STREAM,
DGRAM,
RAW,
SEQPACKET,
};
/// Protocol values for sockets
enum class Protocol {
ICMP,
TCP,
UDP,
};
/// Shutdown mode
enum class ShutdownHow {
RD,
WR,
RDWR,
};
/// Array of IPv4 address
using IPv4Address = std::array<u8, 4>;
/// Cross-platform sockaddr structure
struct SockAddrIn {
Domain family;
IPv4Address ip;
u16 portno;
};
/// Cross-platform poll fd structure
enum class PollEvents : u16 {
// Using Pascal case because IN is a macro on Windows.
In = 1 << 0,
Pri = 1 << 1,
Out = 1 << 2,
Err = 1 << 3,
Hup = 1 << 4,
Nval = 1 << 5,
};
DECLARE_ENUM_FLAG_OPERATORS(PollEvents);
struct PollFD {
Socket* socket;
PollEvents events;
PollEvents revents;
};
class NetworkInstance {
public:
explicit NetworkInstance();
~NetworkInstance();
};
/// @brief Returns host's IPv4 address
/// @return Pair of an array of human ordered IPv4 address (e.g. 192.168.0.1) and an error code
std::pair<IPv4Address, Errno> GetHostIPv4Address();
} // namespace Network