ikarus/lib/libposix.ss

69 lines
2.2 KiB
Scheme

;;; ($pcb-set! posix-fork
;;; (lambda ()
;;; (foreign-call "S_fork")))
;;;
;;; ($pcb-set! fork
;;; (lambda (parent-proc child-proc)
;;; (let ([pid (posix-fork)])
;;; (cond
;;; [(fx= pid 0) (child-proc)]
;;; [(fx= pid -1)
;;; (error 'fork "failed")]
;;; [else (parent-proc pid)]))))
(primitive-set! 'system
(lambda (x)
(unless (string? x)
(error 'system "~s is not a string" x))
(let ([rv (foreign-call "ik_system" x)])
(if (fx= rv -1)
(error 'system "failed")
rv))))
(primitive-set! 'file-exists?
(lambda (x)
(unless (string? x)
(error 'file-exists? "filename ~s is not a string" x))
(let ([v (foreign-call "ikrt_file_exists" x)])
(cond
[(boolean? v) v]
[else
(error 'file-exists?
(case v
[(1) "the path ~s contains a non-directory"]
[(2) "the path ~s is too long"]
[(3) "the path ~s is not accessible"]
[(4) "the path ~s contains too many symbolic links"]
[(5) "internal access error while accessing ~s"]
[(6) "IO error encountered while accessing ~s"]
[else "Unknown error in ~s"])
x)]))))
(primitive-set! 'delete-file
(lambda (x)
(unless (string? x)
(error 'delete-file "filename ~s is not a string" x))
(let ([v (foreign-call "ikrt_delete_file" x)])
(case v
[(0) (void)]
[else
(error 'delete-file
(case v
[(1) "the path ~s contains a non-directory"]
[(2) "the path ~s is too long"]
[(3) "the file ~s does not exist"]
[(4) "the path ~s is not accessible"]
[(5) "the path ~s contains too many symbolic links"]
[(6) "you do not have permissions to delete ~s"]
[(7) "device ~s is busy"]
[(8) "IO error encountered while deleting ~s"]
[(9) "~s is in a read-only file system"]
[(10) "internal access error while deleting ~s"]
[else "Unknown error while deleting ~s"])
x)]))))