ref: e4f9a4578a50e9b6694514e7c94004f4b82f6eab dir: /libc/fmtlock.c/
#include <u.h> #include <libc.h> static Lock fmtl; void _fmtlock(void) { lock(&fmtl); } void _fmtunlock(void) { unlock(&fmtl); }