forked from KolibriOS/kolibrios
59 lines
1.2 KiB
C
59 lines
1.2 KiB
C
/* Reentrant version of close system call. */
|
|
|
|
#include <reent.h>
|
|
#include <unistd.h>
|
|
#include <_syslist.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
|
|
|
|
/* We use the errno variable used by the system dependent layer. */
|
|
#undef errno
|
|
extern int errno;
|
|
|
|
/*
|
|
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>>.
|
|
*/
|
|
|
|
int
|
|
_close_r (ptr, fd)
|
|
struct _reent *ptr;
|
|
int fd;
|
|
{
|
|
int ret;
|
|
|
|
errno = 0;
|
|
if ((ret = _close (fd)) == -1 && errno != 0)
|
|
ptr->_errno = errno;
|
|
return ret;
|
|
}
|
|
|
|
#endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */
|