178 lines
4.1 KiB
C++
178 lines
4.1 KiB
C++
/*
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Copyright 2019 Wolfgang Thaller.
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This file is part of Retro68.
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Retro68 is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Retro68 is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Retro68. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <ConditionalMacros.h>
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#if TARGET_API_MAC_CARBON
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#define OTCARBONAPPLICATION 1
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#endif
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#include "OpenTptStream.h"
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#include <Files.h> /* in UniversalHeaders 3.4.2 requires Files.h to be included before OpenTransportProviders.h */
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#include <OpenTransport.h>
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#include <OpenTransportProviders.h>
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#include <string.h>
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#include <TextUtils.h>
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#ifdef DEBUG_CONSOLE
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#include <stdio.h>
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#endif
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OpenTptStream::OpenTptStream()
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{
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InitOpenTransport();
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OSStatus err;
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listenerEndpoint = OTOpenEndpoint(OTCreateConfiguration(kTCPName), 0, nullptr, &err);
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endpoint = nullptr;
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InetAddress addr, retAddr;
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OTInitInetAddress(&addr, 1984, 0);
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TBind req, ret;
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req.addr.len = sizeof(addr);
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req.addr.buf = (UInt8*) &addr;
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req.qlen = 1;
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ret.addr.maxlen = sizeof(retAddr);
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ret.addr.buf = (UInt8*) &retAddr;
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listenerEndpoint->Bind(&req, &ret);
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listenerEndpoint->SetSynchronous();
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tryListening();
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}
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void OpenTptStream::tryListening()
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{
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if(connected)
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DebugStr("\pDouble connect");
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InetAddress clientAddr;
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memset(&call, 0, sizeof(call));
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call.addr.maxlen = sizeof(clientAddr);
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call.addr.len = sizeof(clientAddr);
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call.addr.buf = (UInt8*) &clientAddr;
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OSStatus err;
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listenerEndpoint->SetNonBlocking();
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err = listenerEndpoint->Listen(&call);
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#ifdef DEBUG_CONSOLE
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printf("Listen: err = %d.\n", (int)err);
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#endif
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if(err < 0)
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return; // hopefully, kOTNoData
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if(!endpoint)
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{
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endpoint = OTOpenEndpoint(OTCreateConfiguration(kTCPName), 0, nullptr, &err);
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endpoint->SetSynchronous();
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}
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listenerEndpoint->SetBlocking();
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err = listenerEndpoint->Accept(endpoint, &call);
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#ifdef DEBUG_CONSOLE
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printf("Accept: err = %d.\n", (int)err);
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#endif
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endpoint->SetNonBlocking();
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connected = true;
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tryReading();
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}
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OpenTptStream::~OpenTptStream()
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{
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if(endpoint)
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{
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endpoint->SetNonBlocking();
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if(connected)
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endpoint->SndDisconnect(&call);
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endpoint->Unbind();
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OTCloseProvider(endpoint);
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}
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listenerEndpoint->SetNonBlocking();
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listenerEndpoint->Unbind();
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OTCloseProvider(listenerEndpoint);
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CloseOpenTransport();
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}
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void OpenTptStream::write(const void* p, size_t n)
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{
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endpoint->SetBlocking();
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endpoint->Snd((void*)p, n, 0);
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endpoint->SetNonBlocking();
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}
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void OpenTptStream::tryReading()
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{
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OTResult result;
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OTFlags flags;
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do
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{
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result = endpoint->Rcv(readBuffer, kReadBufferSize, &flags);
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if(result > 0)
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{
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notifyReceive(readBuffer, result);
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}
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} while(result > 0);
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}
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void OpenTptStream::idle()
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{
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OSStatus err;
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if(connected)
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{
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switch(endpoint->Look())
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{
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case T_DISCONNECT:
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endpoint->RcvDisconnect(nullptr);
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connected = false;
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tryListening();
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break;
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case T_ORDREL:
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err = endpoint->RcvOrderlyDisconnect();
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if(err == noErr)
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endpoint->SndOrderlyDisconnect();
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connected = false;
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tryListening();
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break;
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case T_DATA:
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tryReading();
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break;
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}
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}
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else
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{
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switch(listenerEndpoint->Look())
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{
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case T_LISTEN:
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tryListening();
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break;
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}
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}
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}
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