diff options
Diffstat (limited to 'libc/stdio/printf.c')
| -rw-r--r-- | libc/stdio/printf.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/libc/stdio/printf.c b/libc/stdio/printf.c index 9654cda90..5bdec7ae4 100644 --- a/libc/stdio/printf.c +++ b/libc/stdio/printf.c @@ -1265,6 +1265,10 @@ int vsnprintf(char *__restrict buf, size_t size, f.filedes = -2; /* for debugging */ f.modeflags = (__FLAG_NARROW|__FLAG_WRITEONLY|__FLAG_WRITING); +#ifdef __STDIO_THREADSAFE + __stdio_init_mutex(&f.lock); +#endif + rv = vfprintf(&f, format, arg); if (size) { if (f.bufwpos == f.bufend) { @@ -1335,6 +1339,10 @@ int vsnprintf(char *__restrict buf, size_t size, f.filedes = -1; /* For debugging. */ f.modeflags = (__FLAG_NARROW|__FLAG_WRITEONLY|__FLAG_WRITING); +#ifdef __STDIO_THREADSAFE + __stdio_init_mutex(&f.lock); +#endif + rv = vfprintf(&f, format, arg); return rv; @@ -1373,6 +1381,10 @@ int vdprintf(int filedes, const char * __restrict format, va_list arg) f.filedes = filedes; f.modeflags = (__FLAG_NARROW|__FLAG_WRITEONLY|__FLAG_WRITING); +#ifdef __STDIO_THREADSAFE + __stdio_init_mutex(&f.lock); +#endif + rv = vfprintf(&f, format, arg); return fflush(&f) ? -1 : rv; |