+
+#-win32
+(progn
+ (export 'time :sb-posix)
+ (defun time ()
+ (let ((result (alien-funcall (extern-alien "time"
+ (function time-t (* time-t)))
+ nil)))
+ (if (minusp result)
+ (syscall-error)
+ result)))
+ (export 'utime :sb-posix)
+ (defun utime (filename &optional access-time modification-time)
+ (let ((fun (extern-alien "utime" (function int c-string
+ (* alien-utimbuf))))
+ (name (filename filename)))
+ (if (not (and access-time modification-time))
+ (alien-funcall fun name nil)
+ (with-alien ((utimbuf (struct alien-utimbuf)))
+ (setf (slot utimbuf 'actime) (or access-time 0)
+ (slot utimbuf 'modtime) (or modification-time 0))
+ (let ((result (alien-funcall fun name (alien-sap utimbuf))))
+ (if (minusp result)
+ (syscall-error)
+ result))))))
+ (export 'utimes :sb-posix)
+ (defun utimes (filename &optional access-time modification-time)
+ (flet ((seconds-and-useconds (time)
+ (multiple-value-bind (integer fractional)
+ (cl:truncate time)
+ (values integer (cl:truncate (* fractional 1000000)))))
+ (maybe-syscall-error (value)
+ (if (minusp value)
+ (syscall-error)
+ value)))
+ (let ((fun (extern-alien "utimes" (function int c-string
+ (* (array alien-timeval 2)))))
+ (name (filename filename)))
+ (if (not (and access-time modification-time))
+ (maybe-syscall-error (alien-funcall fun name nil))
+ (with-alien ((buf (array alien-timeval 2)))
+ (let ((actime (deref buf 0))
+ (modtime (deref buf 1)))
+ (setf (values (slot actime 'sec)
+ (slot actime 'usec))
+ (seconds-and-useconds (or access-time 0))
+ (values (slot modtime 'sec)
+ (slot modtime 'usec))
+ (seconds-and-useconds (or modification-time 0)))
+ (maybe-syscall-error (alien-funcall fun name
+ (alien-sap buf))))))))))
+
+