/* We assume here that we are the only remaining thread. */
void attribute_hidden _stdio_term(void)
{
#if defined(__STDIO_BUFFERS) || defined(__UCLIBC_HAS_GLIBC_CUSTOM_STREAMS__)
register FILE *ptr;
#ifdef __UCLIBC_HAS_THREADS__
/* First, make sure the open file list is unlocked. If it was
* locked, then I suppose there is a chance that a pointer in the
* chain might be corrupt due to a partial store.
*/
__stdio_init_mutex(&_stdio_openlist_add_lock);
#warning check
#ifdef __STDIO_BUFFERS
__stdio_init_mutex(&_stdio_openlist_del_lock);
#endif
/* Next we need to worry about the streams themselves. If a stream
* is currently locked, then it may be in an invalid state. So we
* 'disable' it in case a custom stream is stacked on top of it.
* Then we reinitialize the locks.
*/
for (ptr = _stdio_openlist ; ptr ; ptr = ptr->__nextopen ) {
if (__STDIO_ALWAYS_THREADTRYLOCK_CANCEL_UNSAFE(ptr)) {
/* The stream is already locked, so we don't want to touch it.
* However, if we have custom streams, we can't just close it
* or leave it locked since a custom stream may be stacked
* on top of it. So we do unlock it, while also disabling it.
*/
ptr->__modeflags = (__FLAG_READONLY|__FLAG_WRITEONLY);
__STDIO_STREAM_DISABLE_GETC(ptr);
__STDIO_STREAM_DISABLE_PUTC(ptr);
__STDIO_STREAM_INIT_BUFREAD_BUFPOS(ptr);
}
ptr->__user_locking = 1; /* Set locking mode to "by caller". */
__stdio_init_mutex(&ptr->__lock); /* Shouldn't be necessary, but... */
}
#endif
/* Finally, flush all writing streams and shut down all custom streams.
* NOTE: We assume that any stacking by custom streams is done on top
* of streams previously allocated, and hence further down the
* list. Otherwise we have no way of knowing the order in which
* to shut them down.
* Remember that freopen() counts as a new allocation here, even
* though the stream is reused. That's because it moves the
* stream to the head of the list.
*/
for (ptr = _stdio_openlist ; ptr ; ptr = ptr->__nextopen ) {
#ifdef __STDIO_BUFFERS
/* Write any pending buffered chars. */
if (__STDIO_STREAM_IS_WRITING(ptr)) {
__STDIO_COMMIT_WRITE_BUFFER(ptr);
}
#endif
#ifdef __UCLIBC_HAS_GLIBC_CUSTOM_STREAMS__
/* Actually close all custom streams to perform any special cleanup. */
if (ptr->__cookie != &ptr->__filedes) {
__CLOSE(ptr);
}
#endif
}
#endif
}
int ftrylockfile(FILE *stream)
{
__STDIO_STREAM_VALIDATE(stream);
return __STDIO_ALWAYS_THREADTRYLOCK_CANCEL_UNSAFE(stream);
}
