2910aa77b2
`network.cpp` has several error paths which either:
- report "Unhandled host socket error=n" and return `SUCCESS`, or
- switch on a few possible errors, log them, and translate them to
Errno; the same switch statement is copied and pasted in multiple
places in the code
Convert these paths to use a helper function `GetAndLogLastError`, which
is roughly the equivalent of one of the switch statements, but:
- handling more cases (both ones that were already in `Errno`, and a few
more I added), and
- using OS functions to convert the error to a string when logging, so
it'll describe the error even if it's not one of the ones in the
switch statement.
- To handle this, refactor the logic in `GetLastErrorMsg` to expose a
new function `NativeErrorToString` which takes the error number
explicitly as an argument. And improve the Windows version a bit.
Also, add a test which exercises two random error paths.
100 lines
1.6 KiB
C++
100 lines
1.6 KiB
C++
// Copyright 2020 yuzu emulator team
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <array>
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#include <utility>
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#include "common/common_funcs.h"
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#include "common/common_types.h"
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namespace Network {
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class Socket;
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/// Error code for network functions
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enum class Errno {
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SUCCESS,
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BADF,
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INVAL,
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MFILE,
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NOTCONN,
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AGAIN,
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CONNREFUSED,
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HOSTUNREACH,
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NETDOWN,
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NETUNREACH,
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OTHER,
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};
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/// Address families
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enum class Domain {
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INET, ///< Address family for IPv4
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};
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/// Socket types
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enum class Type {
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STREAM,
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DGRAM,
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RAW,
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SEQPACKET,
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};
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/// Protocol values for sockets
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enum class Protocol {
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ICMP,
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TCP,
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UDP,
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};
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/// Shutdown mode
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enum class ShutdownHow {
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RD,
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WR,
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RDWR,
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};
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/// Array of IPv4 address
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using IPv4Address = std::array<u8, 4>;
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/// Cross-platform sockaddr structure
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struct SockAddrIn {
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Domain family;
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IPv4Address ip;
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u16 portno;
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};
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/// Cross-platform poll fd structure
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enum class PollEvents : u16 {
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// Using Pascal case because IN is a macro on Windows.
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In = 1 << 0,
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Pri = 1 << 1,
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Out = 1 << 2,
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Err = 1 << 3,
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Hup = 1 << 4,
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Nval = 1 << 5,
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};
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DECLARE_ENUM_FLAG_OPERATORS(PollEvents);
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struct PollFD {
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Socket* socket;
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PollEvents events;
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PollEvents revents;
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};
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class NetworkInstance {
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public:
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explicit NetworkInstance();
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~NetworkInstance();
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};
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/// @brief Returns host's IPv4 address
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/// @return Pair of an array of human ordered IPv4 address (e.g. 192.168.0.1) and an error code
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std::pair<IPv4Address, Errno> GetHostIPv4Address();
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} // namespace Network
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