X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcode%2Fexhaust.lisp;h=7de2f007085623ee139b3a457b7c35ae4f4c4c55;hb=15d6e7c9a2c3234f95dfe278046fa2fee1b0c007;hp=50c5bdb8f9e8271c5d5d1d2daee543ae7a16cf2c;hpb=08671cc8f003e0b1f9879635fa950c78f7bf40fe;p=sbcl.git

diff --git a/src/code/exhaust.lisp b/src/code/exhaust.lisp
index 50c5bdb..7de2f00 100644
--- a/src/code/exhaust.lisp
+++ b/src/code/exhaust.lisp
@@ -1,4 +1,5 @@
-;;;; detecting and handling exhaustion of memory (stack or heap)
+;;;; detecting and handling exhaustion of fundamental system resources
+;;;; (stack or heap)
 
 ;;;; This software is part of the SBCL system. See the README file for
 ;;;; more information.
@@ -10,14 +11,11 @@
 ;;;; files for more information.
 
 (in-package "SB!KERNEL")
+(define-alien-routine ("protect_control_stack_guard_page"
+		       %protect-control-stack-guard-page)
+    sb!alien:int (thread-id sb!alien:int) (protect-p sb!alien:int))
+(defun protect-control-stack-guard-page (n)
+  (%protect-control-stack-guard-page 
+   (sb!thread:current-thread-id) (if n 1 0)))
+
 
-;;; FIXME: Even though this is only called when (> SAFETY (MAX SPEED SPACE))
-;;; it's still annoyingly wasteful for it to be a full function call.
-;;; It should probably be a VOP calling an assembly routine or something
-;;; like that.
-(defun %detect-stack-exhaustion ()
-  ;; FIXME: Check the stack pointer against *STACK-EXHAUSTION*, and if
-  ;; out of range signal an error (in a context where *S-E* has been
-  ;; rebound to give some space to let error handling code do its
-  ;; thing without new exhaustion problems).
-  (values))