source: azure_iot_hub/trunk/musl-1.1.18/src/stdio/__stdio_exit.c@ 389

#include "stdio_impl.h"

#ifndef __c2__
static FILE *volatile dummy_file = 0;
weak_alias(dummy_file, __stdin_used);
weak_alias(dummy_file, __stdout_used);
weak_alias(dummy_file, __stderr_used);
#else
extern FILE *volatile __stdin_used;
extern FILE *volatile __stdout_used;
#endif

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;
        for (f=*__ofl_lock(); f; f=f->next) close_file(f);
        close_file(__stdin_used);
        close_file(__stdout_used);
}

#ifndef __c2__
weak_alias(__stdio_exit, __stdio_exit_needed);
#else
void __stdio_exit_needed(void)
{
        __stdio_exit();
}
#endif