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- /*
- * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
- * See the copyright notice in the ACK home directory, in the file "Copyright".
- */
- /* RCS: $Id$ */
- #ifndef __SYSTEM_INCLUDED__
- #define __SYSTEM_INCLUDED__
- #include <ansi.h>
- struct _sys_fildes {
- int o_fd; /* UNIX filedescriptor */
- int o_flags; /* flags for open; 0 if not used */
- };
- typedef struct _sys_fildes File;
- extern File _sys_ftab[];
- /* flags for sys_open() */
- #define OP_READ 01
- #define OP_WRITE 02
- #define OP_APPEND 04
- /* flags for sys_access() */
- #define AC_EXIST 00
- #define AC_READ 04
- #define AC_WRITE 02
- #define AC_EXEC 01
- /* flags for sys_stop() */
- #define S_END 0
- #define S_EXIT 1
- #define S_ABORT 2
- _PROTOTYPE(int sys_open, (char *, int, File **));
- _PROTOTYPE(void sys_close, (File *));
- _PROTOTYPE(int sys_read, (File *, char *, int, int *));
- _PROTOTYPE(int sys_write, (File *, char *, int));
- _PROTOTYPE(int sys_seek, (File *, long, int, long *));
- _PROTOTYPE(int sys_reset, (File *));
- _PROTOTYPE(int sys_access, (char *, int));
- _PROTOTYPE(int sys_remove, (char *));
- _PROTOTYPE(int sys_rename, (char *, char *));
- _PROTOTYPE(long sys_filesize, (char *));
- _PROTOTYPE(int sys_chmode, (char *, int));
- #if 0
- _PROTOTYPE(int sys_lock, (char *));
- _PROTOTYPE(int sys_unlock, (char *));
- #endif
- _PROTOTYPE(char *sys_break, (int));
- _PROTOTYPE(void sys_stop, (int));
- _PROTOTYPE(long sys_time, (void));
- _PROTOTYPE(long sys_modtime, (char *));
- /* standard file decsriptors */
- #define STDIN &_sys_ftab[0]
- #define STDOUT &_sys_ftab[1]
- #define STDERR &_sys_ftab[2]
- /* maximum number of open files */
- #define SYS_NOPEN 20
- /* return value for sys_break */
- #define ILL_BREAK ((char *)0)
- #endif /* __SYSTEM_INCLUDED__ */
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