From: Chris Hanson <org/chris-hanson/cph>
Date: Fri, 1 Oct 2004 02:15:20 +0000 (+0000)
Subject: Implement WITH-LIMITED-INTERRUPTS.
X-Git-Tag: 20090517-FFI~1582
X-Git-Url: https://birchwood-abbey.net/git?a=commitdiff_plain;h=e0442a17aab06888584d546a15c2c42d07655a6a;p=mit-scheme.git

Implement WITH-LIMITED-INTERRUPTS.
---

diff --git a/v7/src/runtime/global.scm b/v7/src/runtime/global.scm
index 73a454ea5..2b34a392e 100644
--- a/v7/src/runtime/global.scm
+++ b/v7/src/runtime/global.scm
@@ -1,6 +1,6 @@
 #| -*-Scheme-*-
 
-$Id: global.scm,v 14.65 2004/10/01 01:52:52 cph Exp $
+$Id: global.scm,v 14.66 2004/10/01 02:14:55 cph Exp $
 
 Copyright 1988,1989,1991,1992,1993,1995 Massachusetts Institute of Technology
 Copyright 1998,2000,2001,2003,2004 Massachusetts Institute of Technology
@@ -113,6 +113,10 @@ USA.
 (define-integrable (system-hunk3-cons type cxr0 cxr1 cxr2)
   (object-new-type type (hunk3-cons cxr0 cxr1 cxr2)))
 
+(define (with-limited-interrupts limit-mask procedure)
+  (with-interrupt-mask (fix:and limit-mask (get-interrupt-enables))
+    procedure))
+
 (define (object-component-binder get-component set-component!)
   (lambda (object new-value thunk)
     (let ((old-value))
diff --git a/v7/src/runtime/runtime.pkg b/v7/src/runtime/runtime.pkg
index 10a30f569..d529c3713 100644
--- a/v7/src/runtime/runtime.pkg
+++ b/v7/src/runtime/runtime.pkg
@@ -1,6 +1,6 @@
 #| -*-Scheme-*-
 
-$Id: runtime.pkg,v 14.493 2004/10/01 01:53:10 cph Exp $
+$Id: runtime.pkg,v 14.494 2004/10/01 02:15:20 cph Exp $
 
 Copyright 1988,1989,1990,1991,1992,1993 Massachusetts Institute of Technology
 Copyright 1994,1995,1996,1997,1998,1999 Massachusetts Institute of Technology
@@ -357,6 +357,7 @@ USA.
 	  wait-interval
 	  with-history-disabled
 	  with-interrupt-mask
+	  with-limited-interrupts
 	  with-values
 	  write-to-string)
   (initialization (initialize-package!)))