Provided by: libfontconfig1-dev_2.12.6-0ubuntu2_amd64 

NAME
FcAtomicLock - lock a file
SYNOPSIS
#include <fontconfig/fontconfig.h> FcBool FcAtomicLock (FcAtomic *atomic);
DESCRIPTION
Attempts to lock the file referenced by atomic. Returns FcFalse if the file is already locked, else returns FcTrue and leaves the file locked.