Linux Manuals · Linux Manuals session 3 FcAtomicLock (3) Linux Manual Page ByLinux Manual Posted onApr 20, 2026 FcAtomicLock – lock a file Synopsis#include <fontconfig/fontconfig.h> FcBool FcAtomicLock (FcAtomic *atomic); DescriptionAttempts to lock the file referenced by atomic. Returns FcFalse if the file is already locked, else returns FcTrue and leaves the file locked.