| 0,0 → 1,87 |
|---|
| /* 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) */ |