mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-20 10:42:21 +00:00
138 lines
3.5 KiB
C++
138 lines
3.5 KiB
C++
/*
|
|
Copyright 2019 Wolfgang Thaller.
|
|
|
|
This file is part of Retro68.
|
|
|
|
Retro68 is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
Retro68 is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with Retro68. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "SharedFileStream.h"
|
|
#include <Files.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <TextUtils.h>
|
|
|
|
void SharedFileStream::MakeFileName(unsigned char *name, int i)
|
|
{
|
|
const unsigned char *templ = "\pout_channel_";
|
|
memcpy(name, templ, templ[0]+1);
|
|
Str31 s;
|
|
NumToString(i, s);
|
|
memcpy(name + name[0] + 1, s + 1, s[0]);
|
|
name[0] += s[0];
|
|
}
|
|
|
|
void SharedFileStream::write(const void* p, size_t n)
|
|
{
|
|
Str31 name;
|
|
MakeFileName(name, outQueueTail++);
|
|
HCreate(vRefNum, dirID, name, 'R68L', 'DATA' );
|
|
|
|
short refNum;
|
|
OSErr err = HOpenDF(vRefNum, dirID, name, fsWrDenyPerm, &refNum);
|
|
if(err)
|
|
return;
|
|
long count = n;
|
|
FSWrite(refNum, &count, p);
|
|
FSClose(refNum);
|
|
}
|
|
|
|
void SharedFileStream::idle()
|
|
{
|
|
const unsigned char* in_channel = "\pin_channel";
|
|
|
|
static int count = 0;
|
|
if(++count % 10)
|
|
return;
|
|
short refNum;
|
|
|
|
OSErr err = HOpenDF(vRefNum, dirID, in_channel, fsRdDenyPerm, &refNum);
|
|
if(err == 0)
|
|
{
|
|
long count, countTotal = 0;
|
|
do
|
|
{
|
|
count = kReadBufferSize;
|
|
err = FSRead(refNum, &count, &readBuffer);
|
|
countTotal += count;
|
|
if((err == noErr || err == eofErr) && count > 0)
|
|
notifyReceive(readBuffer, count);
|
|
} while(err == noErr);
|
|
FSClose(refNum);
|
|
#ifdef DEBUG_CONSOLE
|
|
printf("read %ld bytes, deleting package\n", countTotal);
|
|
#endif
|
|
|
|
HDelete(vRefNum, dirID, in_channel);
|
|
}
|
|
|
|
if(outQueueTail > outQueueHead)
|
|
{
|
|
const unsigned char* out_channel = "\pout_channel";
|
|
Str31 name;
|
|
MakeFileName(name, outQueueHead);
|
|
if(HRename(vRefNum, dirID, name, out_channel) == noErr)
|
|
++outQueueHead;
|
|
}
|
|
|
|
if(outQueueHead == outQueueTail)
|
|
outQueueHead = outQueueTail = 1;
|
|
}
|
|
|
|
bool SharedFileStream::allDataArrived() const
|
|
{
|
|
return outQueueHead == outQueueTail;
|
|
}
|
|
|
|
SharedFileStream::SharedFileStream(const unsigned char* path)
|
|
{
|
|
Str255 str;
|
|
memcpy(str, path, path[0] + 1);
|
|
CInfoPBRec ipb;
|
|
ipb.hFileInfo.ioCompletion = nullptr;
|
|
ipb.hFileInfo.ioVRefNum = 0;
|
|
ipb.hFileInfo.ioNamePtr = str;
|
|
ipb.hFileInfo.ioFDirIndex = 0;
|
|
ipb.hFileInfo.ioDirID = 0;
|
|
|
|
PBGetCatInfoSync(&ipb);
|
|
|
|
dirID = ipb.hFileInfo.ioDirID;
|
|
|
|
#ifdef DEBUG_CONSOLE
|
|
printf("dirID = %ld\n", dirID);
|
|
str[str[0]+1] = 0;
|
|
printf("name = %s\n", str + 1);
|
|
#endif
|
|
|
|
HParamBlockRec hpb;
|
|
hpb.ioParam.ioCompletion = nullptr;
|
|
hpb.ioParam.ioVRefNum = 0;
|
|
hpb.volumeParam.ioVolIndex = -1;
|
|
memcpy(str, path, path[0] + 1);
|
|
hpb.volumeParam.ioNamePtr = str;
|
|
PBHGetVInfoSync(&hpb);
|
|
|
|
#ifdef DEBUG_CONSOLE
|
|
str[str[0]+1] = 0;
|
|
printf("vRefNum = %d, name = %s\n", hpb.volumeParam.ioVRefNum, str + 1);
|
|
#endif
|
|
|
|
vRefNum = hpb.volumeParam.ioVRefNum;
|
|
}
|
|
|
|
SharedFileStream::~SharedFileStream()
|
|
{
|
|
}
|