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content-class: | urn:content-classes:message |
Subject: | RE: exceptions |
MIME-Version: | 1.0 |
Date: | Tue, 20 Mar 2001 12:07:32 +1100 |
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Message-ID: | <EA18B9FA0FE4194AA2B4CDB91F73C0EF02E26A@itdomain002.itdomain.net.au> |
Thread-Topic: | exceptions |
Thread-Index: | AcCw1XlS4OsdlGrgRWOXuBYpuD1EnQABHCOw |
From: | "Robert Collins" <robert DOT collins AT itdomain DOT com DOT au> |
To: | <cygwin-developers AT cygwin DOT com> |
X-MIME-Autoconverted: | from quoted-printable to 8bit by delorie.com id UAA27692 |
Thanks Chris, I took your code and cut it back to /* Generic memory acccess routine - where should it live ? */ int __stdcall check_valid_pointer (void *pointer) { MEMORY_BASIC_INFORMATION m; if (!pointer || !VirtualQuery (pointer, &m, sizeof (m)) || (m.State != MEM_COMMIT)) return EFAULT; return 0; } because thread.cc should not depend on path.h IMO... and the check for *name was not necessarily appropriate in all cases for me. However the path.cc function should wrap this one, but my question is - where should check_valid_pointer go? Rob > -----Original Message----- > From: Christopher Faylor [mailto:cgf AT redhat DOT com] > Sent: Tuesday, March 20, 2001 11:18 AM > To: cygwin-developers AT cygwin DOT com > Subject: Re: exceptions > > > On Tue, Mar 20, 2001 at 10:20:38AM +1100, Robert Collins wrote: > >are we able to use c++ exception handling within cygwin1.dll? > > No, not currently. I don't remember if this doesn't work in DLLs > or if it bloated the code alarmingly. > > >ie to guard against invalid memory access on user supplied > parameters? > > check_null_empty_path is the method for doing that. It validates an > address. Probably should change the name... > > cgf >
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