mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-15 19:33:59 +03:00
88 lines
1.6 KiB
C
88 lines
1.6 KiB
C
/* Reentrant version of close system call. */
|
|
|
|
#include <reent.h>
|
|
#include <unistd.h>
|
|
#include <_syslist.h>
|
|
#include <errno.h>
|
|
|
|
/* Some targets provides their own versions of this functions. Those
|
|
targets should define REENTRANT_SYSCALLS_PROVIDED in TARGET_CFLAGS. */
|
|
|
|
#ifdef _REENT_ONLY
|
|
#ifndef REENTRANT_SYSCALLS_PROVIDED
|
|
#define REENTRANT_SYSCALLS_PROVIDED
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef REENTRANT_SYSCALLS_PROVIDED
|
|
|
|
|
|
/*
|
|
FUNCTION
|
|
<<_close_r>>---Reentrant version of close
|
|
|
|
INDEX
|
|
_close_r
|
|
|
|
ANSI_SYNOPSIS
|
|
#include <reent.h>
|
|
int _close_r(struct _reent *<[ptr]>, int <[fd]>);
|
|
|
|
TRAD_SYNOPSIS
|
|
#include <reent.h>
|
|
int _close_r(<[ptr]>, <[fd]>)
|
|
struct _reent *<[ptr]>;
|
|
int <[fd]>;
|
|
|
|
DESCRIPTION
|
|
This is a reentrant version of <<close>>. It
|
|
takes a pointer to the global data block, which holds
|
|
<<errno>>.
|
|
*/
|
|
extern unsigned __NFiles;
|
|
|
|
|
|
#define __handle_check( __h, __r ) \
|
|
if( (__h) < 0 || (__h) > __NFiles ) { \
|
|
ptr->_errno = EBADF ; \
|
|
return( __r ); \
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
|
_DEFUN(_close_r, (ptr, fd),
|
|
struct _reent *ptr _AND
|
|
int fd)
|
|
{
|
|
int ret;
|
|
int h;
|
|
|
|
__file_handle *fh;
|
|
|
|
__handle_check( fd, -1 );
|
|
|
|
fh = (__file_handle*) __getOSHandle( fd );
|
|
|
|
if( fd > STDERR_FILENO )
|
|
{
|
|
_free_r(ptr, fh->name);
|
|
_free_r(ptr, fh);
|
|
__freePOSIXHandle( fd );
|
|
__SetIOMode_nogrow( fd, 0 );
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int
|
|
_DEFUN( close,(fd),
|
|
int fd)
|
|
{
|
|
return _close_r(_REENT, fd);
|
|
}
|
|
|
|
#endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */
|