musl/src/stdio/__stdio_exit.c
Rich Felker a617a8e2ad fix more unused variable warnings
some of these were coming from stdio functions locking files without
unlocking them. I believe it's useful for this to throw a warning, so
I added a new macro that's self-documenting that the file will never
be unlocked to avoid the warning in the few places where it's wrong.
2012-11-01 23:46:39 -04:00

24 lines
511 B
C

#include "stdio_impl.h"
static FILE *const dummy_file = 0;
weak_alias(dummy_file, __stdin_used);
weak_alias(dummy_file, __stdout_used);
weak_alias(dummy_file, __stderr_used);
static void close_file(FILE *f)
{
if (!f) return;
FFINALLOCK(f);
if (f->wpos > f->wbase) f->write(f, 0, 0);
if (f->rpos < f->rend) f->seek(f, f->rpos-f->rend, SEEK_CUR);
}
void __stdio_exit(void)
{
FILE *f;
OFLLOCK();
for (f=libc.ofl_head; f; f=f->next) close_file(f);
close_file(__stdin_used);
close_file(__stdout_used);
}