Re: QGit: Shrink used memory with custom git log format

> Hi,
>
> On Tue, 27 Nov 2007, Jan Hudec wrote:
>
>> On Tue, Nov 27, 2007 at 10:48:00 +0000, Johannes Schindelin wrote:
>> > On Mon, 26 Nov 2007, Shawn O. Pearce wrote:
>> > > [...]
>> > > Otherwise I think what you really want here is a libgit that you can
>> > > link into your process and that can efficiently inflate an object
>> > > on demand for you.  Like the work Luiz was working on this past
>> > > summer for GSOC.  Lots of downsides to that current tree though...
>> > > like die() kills the GUI...
>> >
>> > But then, die() calls die_routine, which you can override.  And C++
>> has
>> > this funny exception mechanism which just begs to be used here.  The
>> only
>> > thing you need to add is a way to flush all singletons like the object
>> > array.
>>
>> Unfortunately, exceptions won't really work. Why? Because to use
>> exceptions, you need to have an exception-safe code. That is the code
>> needs to free any allocated resources when it's aborted by exception.
>> And git code is not exceptions safe. Given the lack of destructors in C,
>> it means registering all resource allocation in some kind of pool, so
>> they can be freed en masse in case of failure. Than you can also use
>> longjmp for die (for C they really behave the same).
>
> Sorry, I just assumed that you can read my mind (or alternatively remember
> what I suggested a few months ago, namely to "override" xmalloc(),
> xcalloc(), xrealloc() and xfree() (probably you need to create the
> latter)).