/*----------------------------------------------------------------------------*
* NAME
* SetImageFileName
*
* DESCRIPTION
* The file name of the image to be transferred.
*---------------------------------------------------------------------------*/
bool ImageFileHandler::OpenImageFile()
{
bool fileOpened = false;
if(mImgFile != NULL)
{
fclose(mImgFile);
mImgFile = NULL;
}
FILE *imgFile = NULL; // The image file to transfer
// Try to open the specified file
if(0 == fopen_s(&imgFile, mAsciiFileName, "rb+"))
{
fclose(imgFile);
//if(fopen_s(&mImgFile, "OTATemp.img", "w+")) == 0)
DeleteFileA(mTempFileName);
CopyFileA(mAsciiFileName, mTempFileName, FALSE);
if(0 == fopen_s(&mImgFile, mTempFileName, "rb+"))
{
fileOpened = true;
// Try to determine the length of the specified file
mImgFileSize = readFileLength(mImgFile);
ResetTransfer();
}
}
return (fileOpened && (mImgFileSize > 0));
}
A pString_Connection::readBurst(void)
{
ipcWarn(wrnlvl(),"%t pString_Connection::readBurst\n");
MSBuffer bbuff;
A d,z=(A)0;
I slen=readFileLength(),slen1,n,s,count;
if(-1==slen)R(A)0;
if(0==slen)
{
static char fmt[]="\343 IPC warning: pA::ReadBurst: read event with no data [%d]\n";
Warn(fmt, handle());
}
/* create buff to hold it. Fill buffer */
slen1=slen?slen:4;
bbuff.minofbuffer(mab(slen1));
bbuff.maxofbuffer(bbuff.minofbuffer()+slen1);
bbuff.reset();
if(0>(n=readTheBuffer(&bbuff,slen1))) {mfbuffer(&bbuff); R(A)0;}
if(0==n&&0==slen) {turnInReadOff(); mfbuffer(&bbuff); R(A)0;}
d=getAobjFromBuffer(&bbuff);
if((A)0==d){mfbuffer(&bbuff); R(A)0;}
// determine how many more complete A-objects lie in bbuff
count=1;
for(C *cp=bbuff.get();cp<bbuff.put();cp+=s)
{
s=longAt(cp);
cp+=sizeof(long);
if(s<=bbuff.put()-cp)++count;
}
// create result
z=gv(Et,count);
for(int i=0;i<count;++i)z->p[i]=(I)aplus_nl;
int idx=0;
z->p[idx++]=(I)d;
// retrieve additional A-objects from bbuff, fill in z
while(idx<count)
{
d=getAobjFromBuffer(&bbuff);
if((A)0==d)break;
z->p[idx++]=(I)d;
}
if(idx<count)
{
ipcWarn(wrnlvl(),"%t burst mode aborted. Possible data loss.\n");
}
// run once more to clear out bbuff and move partial object into connection
// buffers
if(bbuff.get()==bbuff.put())turnInReadOff();
else
{
d=getAobjFromBuffer(&bbuff);
if((A)0!=d || bbuff.get()!=bbuff.put())
{
ipcWarn(wrnlvl(),"%t burst buffer not cleared: %d %d %d\n",
d,bbuff.get(),bbuff.put());
}
}
// free bbuff;
mfbuffer(&bbuff);
return z;
}