[Fontconfig] Re: fc-cache sometimes looses fonts
Patrick Lam
plam at MIT.EDU
Thu Nov 3 02:28:32 EST 2005
sunmoon1997 wrote:
> hi,
> After updating fontconfig, apps which use fontconfig are going to
> crash:(, then I found FcPatternGetString(pattern, FC_FILE,... only
> returns basename instread of full path name sometimes that make cairo
> return NULL font face then app crashes. Then follow to fontconfig,
> I think problem is here.
> void
> FcPatternDestroy (FcPattern *p)
> {
> int i;
>
> if (FcPatternFindFullFname (p))
> FcPatternAddFullFname (p, 0);
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> why every call to FcPatternDestroy want to reset font full name, maybe
> this object is still hold by others. Removing these two lines,
> everything works fine now.:D
That's quite mysterious. Oh! I bet that someone's trying to destroy a
constant font; the check for constantness is two lines down. So I bet
it would work if I moved this two lines down. But also, there's a
memory leak here. I've committed an improved version, which, I believe,
gets rid of the memory leak as well.
pat
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