close_r.c

来自「FAT16 Filesystem on Philips LPC2000 seri」· C语言 代码 · 共 28 行

#include <reent.h>
#include <errno.h>
#include <devices.h>
#include <sysdefs.h>
#include <iface.h>

int _close_r (struct _reent *ptr, int fd)
{
#ifdef HAS_MMC
int	result;
int	idx;
		// look thru device table for this device.
	if ((idx = find_device (ptr, DEVICE_TYPE(fd))) == -1) return -1;
		// call function if defined.
	if (device_table_list [idx].item->close) {
		result = device_table_list [idx].item->close(ptr, fd);
	} else {
		ptr->_errno = EBADF;
		return -1;
	}
	return result;
#else
	ptr->_errno = EBADF;
	return -1;
#endif
}