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63 lines
1.4 KiB
C++
63 lines
1.4 KiB
C++
// Copyright 1998-2017 Epic Games, Inc. All Rights Reserved.
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#include "IPAddress.h"
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#include "SocketSubsystem.h"
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/**
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* Sets the address to return to the caller
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*
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* @param InAddr the address that is being cached
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*/
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FResolveInfoCached::FResolveInfoCached(const FInternetAddr& InAddr)
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{
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// @todo sockets: This should use Clone
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uint32 IpAddr;
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InAddr.GetIp(IpAddr);
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Addr = ISocketSubsystem::Get()->CreateInternetAddr(IpAddr, InAddr.GetPort());
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}
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/**
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* Copies the host name for async resolution
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*
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* @param InHostName the host name to resolve
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*/
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FResolveInfoAsync::FResolveInfoAsync(const ANSICHAR* InHostName) :
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ErrorCode(SE_NO_ERROR),
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bShouldAbandon(false),
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AsyncTask(this)
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{
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FCStringAnsi::Strncpy(HostName,InHostName,256);
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}
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/**
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* Resolves the specified host name
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*/
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void FResolveInfoAsync::DoWork()
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{
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int32 AttemptCount = 0;
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ISocketSubsystem* SocketSubsystem = ISocketSubsystem::Get();
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Addr = SocketSubsystem->CreateInternetAddr(0,0);
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// Make up to 3 attempts to resolve it
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do
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{
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ErrorCode = SocketSubsystem->GetHostByName(HostName, *Addr);
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if (ErrorCode != SE_NO_ERROR)
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{
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if (ErrorCode == SE_HOST_NOT_FOUND || ErrorCode == SE_NO_DATA || ErrorCode == SE_ETIMEDOUT)
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{
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// Force a failure
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AttemptCount = 3;
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}
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}
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AttemptCount++;
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}
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while (ErrorCode != SE_NO_ERROR && AttemptCount < 3 && bShouldAbandon == false);
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if (ErrorCode == SE_NO_ERROR)
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{
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// Cache for reuse
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SocketSubsystem->AddHostNameToCache(HostName, Addr);
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}
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}
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