X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcode%2Ftarget-unithread.lisp;h=651573d43c8078f10af34fd63ff804b58046ba27;hb=a22dd643fb599880f4c0856e1a85bffe4358aea8;hp=bd57e74e537b07ad19cfdd7f5901188dcac454ae;hpb=d767105094f5836327f9389b061f83a44240a279;p=sbcl.git

diff --git a/src/code/target-unithread.lisp b/src/code/target-unithread.lisp
index bd57e74..651573d 100644
--- a/src/code/target-unithread.lisp
+++ b/src/code/target-unithread.lisp
@@ -1,5 +1,6 @@
 (in-package "SB!THREAD")
 
+;;; used bu debug-int.lisp to access interrupt contexts
 #!-sb-fluid (declaim (inline sb!vm::current-thread-offset-sap))
 (defun sb!vm::current-thread-offset-sap (n) 
   (declare (type (unsigned-byte 27) n))
@@ -7,8 +8,8 @@
 	       (* n 4)))
 
 (defun current-thread-id ()
-  (sb!sys:sap-int
-   (sb!vm::current-thread-offset-sap sb!vm::thread-pid-slot)))
+  (sb!sys:sap-ref-32 (alien-sap (extern-alien "all_threads" (* t))) 
+	       (* sb!vm::thread-pid-slot 4)))
 
 ;;;; queues, locks 
 
@@ -55,7 +56,7 @@
     (let ((h (car (waitqueue-data queue))))
       (setf (waitqueue-lock queue) 0)
       (when h
-	(sb!unix:unix-kill h :sigcont)))))
+	(sb!unix:unix-kill h sb!unix:sigcont)))))
 
 ;;;; mutex
 
@@ -90,11 +91,20 @@
      (setf old-value t1))))
 
 (defmacro with-mutex ((mutex &key value (wait-p t))  &body body)
-  (declare (ignore mutex value wait-p))
-  `(progn ,@body))
-
-;;; what's the best thing to do with these on unithread?
-#+NIl
+  (cond ((not wait-p)
+	 `(unless (mutex-value ,mutex)
+	   (unwind-protect
+		(progn
+		  (setf (mutex-value ,mutex) (or ,value t))
+		  ,@body)
+	     (setf (mutex-value ,mutex) nil))))
+	(t 
+	 `(progn ,@body))))
+
+;;; what's the best thing to do with these on unithread?  commented
+;;; functions are the thread versions, just to remind me what they do
+;;; there
+#+nil
 (defun condition-wait (queue lock)
   "Atomically release LOCK and enqueue ourselves on QUEUE.  Another
 thread may subsequently notify us using CONDITION-NOTIFY, at which
@@ -113,11 +123,12 @@ time we reacquire LOCK and return to the caller."
   "Notify one of the processes waiting on QUEUE"
   (signal-queue-head queue))
 
-
-;;;; multiple independent listeners
-
-(defvar *session-lock* nil)
+(defun maybe-install-futex-functions () nil)
 
 ;;;; job control
 
+(defun init-job-control () t)
 (defun debugger-wait-until-foreground-thread (stream) t)
+(defun get-foreground () t)
+(defun release-foreground (&optional next) t)
+(defun terminate-session ())