Re: PQescapeBytea on Win32

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Key88 SF <key88sf(at)hotmail(dot)com>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: PQescapeBytea on Win32
Date: 2003-03-18 05:01:38
Message-ID: 200303180501.h2I51cW03568@candle.pha.pa.us
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Yes, I am aware of that limitation. If you link libpq as a
Multithreaded DLL, it will not link libc into each DLL, but have only
one libc that can free from anywhere.

Is that acceptable or do we need a Win32 specific memory free function?

---------------------------------------------------------------------------

Key88 SF wrote:
>
> Hi - there is a problem with PQescapeBytea for Win32. Since libpq is a DLL,
> all memory allocated from within the DLL needs to be freed from within the
> dll.
>
> PQescapeBytea allocates memory, but there is no function call back into the
> DLL to free this memory. This causes heap corruption when the main program
> tries to free the memory itself. The alternative is to just leak the memory
> and never free it. Also bad....
>
> -Dave Brown
> key88sf(at)hotmail(dot)com
>
>
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--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073

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