【转帖】abnormal program termination
 

abnormal program termination
abnormal program termination
hi.
it becomes an [abnormal program termination] when outputting it with the v1.14 odwriteex sample.
it is time when it outputed data that exceeds capacity on the disk where capacity is a little.
v1.13.02 odwriteex sample is err(efilewriteerror), and it ends normally.
isn't there evasion method?
thanks.
i failed to reproduce it with several 1.14 builds.
which build number you have problems with, which compiler?
(i was experimenting with floppy disk).
sergey slezkin
hi,
i have vc6/vc8 of windows(32-bit) platform.
i also is experimenting on the floppy disk.
vc6 or vc8?
static linking or dll?
if static which library (ml, mt, md)
debug or release
1.14.0, 1.14.1, 1.14.2, .... ?
writeex saves dxf or dwg?
to which autocad file version?
sergey slezkin
it is 1.14.2 vc6(md) debug that i tried.
the tried sample is examples\odwriteex.
autocad file type & version is 2000 dxf.
the bug is in odfilebuf.cpp
code:
void odbasefilebuf::putbytes(const void* buffer, oduint32 nlen)
{
oda_trace("putbytes(%p, %u)", buffer, nlen);
dword dwbytes = 0;
if( !::writefile(m_hfile, buffer, nlen, &dwbytes, null) || dwbytes != nlen )
{
oda_trace("putbytes() can't write bytes");
throw oderror_fileexception(efilewriteerror, m_sfilename);
}
m_bfilewritten = true;
}
if writing failed exception is thrown. but when odwrfilebuf destructor is invoked it calls flush() which results in one more exception because again calls putbytes().
sergey slezkin
i understood!
isn't there evasion method in v1.14?
odfilebuf source is available (extensions/exservices).
you can add an error flag which is zeroed in constructor and turned on before throwing exception.
close() should not call flush() if the flag is on.
sergey slezkin