rt-thread/components/libc/compilers/dlib/syscall_close.c

39 lines
869 B
C

/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2015-01-28 Bernard first version
*/
#include <rtthread.h>
#include <LowLevelIOInterface.h>
#include <unistd.h>
#include <compiler_private.h>
#define DBG_TAG "dlib.syscall.close"
#define DBG_LVL DBG_INFO
#include <rtdbg.h>
/*
* The "__close" function should close the file corresponding to
* "handle". It should return 0 on success and nonzero on failure.
*/
#pragma module_name = "?__close"
int __close(int handle)
{
if (handle == _LLIO_STDOUT ||
handle == _LLIO_STDERR ||
handle == _LLIO_STDIN)
return _LLIO_ERROR;
#ifdef DFS_USING_POSIX
return close(handle);
#else
LOG_W(_WARNING_WITHOUT_FS);
return _LLIO_ERROR;
#endif /* DFS_USING_POSIX */
}