1 ;; -*- Mode: Lisp; Syntax: ANSI-Common-Lisp -*-
3 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
4 ; Copyright (C) 2006,2007 by Stelian Ionescu ;
6 ; This program is free software; you can redistribute it and/or modify ;
7 ; it under the terms of the GNU General Public License as published by ;
8 ; the Free Software Foundation; either version 2 of the License, or ;
9 ; (at your option) any later version. ;
11 ; This program is distributed in the hope that it will be useful, ;
12 ; but WITHOUT ANY WARRANTY; without even the implied warranty of ;
13 ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;
14 ; GNU General Public License for more details. ;
16 ; You should have received a copy of the GNU General Public License ;
17 ; along with this program; if not, write to the ;
18 ; Free Software Foundation, Inc., ;
19 ; 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA ;
20 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
22 (in-package :io.multiplex
)
28 ;;; Break a real timeout into seconds and microseconds.
29 (defun decode-timeout (timeout)
31 (integer (values timeout
0))
34 (multiple-value-bind (q r
) (truncate (coerce timeout
'double-float
))
35 (declare (type unsigned-byte q
)
36 (type double-float r
))
37 (values q
(the (values unsigned-byte t
) (truncate (* r
1d6
))))))
39 (error "Timeout is not a real number or NIL: ~S" timeout
))))
43 (multiple-value-bind (sec nsec
)
44 (et:clock-get-time et
:clock-monotonic
)
45 (+ sec
(/ nsec
1d9
))))
48 (defun normalize-timeout (timeout)
50 (assert (not (minusp timeout
)))
52 ((or integer real
) (coerce timeout
'double-float
)))))
55 (defun abs-timeout (timeout)
57 (+ (gettime) (normalize-timeout timeout
))))
60 (defun calc-min-timeout (t1 t2
)