[Sbcl-commits] CVS: sbcl/doc/internals-notes threading-specials,1.9,1.10

[Daniel B. <da...@us...>]

Update of /cvsroot/sbcl/sbcl/doc/internals-notes
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv8613/doc/internals-notes

Modified Files:
	threading-specials 
Log Message:
0.8.15.7
	Threading fixes :

	- bind *restart-clusters* *handler-clusters*
          *condition-restarts* at thread entry: inter-thread restarts
	  don't work (nor is it clear what they'd do if they did)

	- threads exit when their initial function returns, no need to
          call unix-exit (which may do interesting things with file
          buffers that we'd rather didn't happen)

	arrange_return_to_lisp_function wasn't restoring esp
	properly.  Not sure it ever makes a difference in practice,
	but fix it anyway.




Index: threading-specials
===================================================================
RCS file: /cvsroot/sbcl/sbcl/doc/internals-notes/threading-specials,v
retrieving revision 1.9
retrieving revision 1.10
diff -u -d -r1.9 -r1.10
--- threading-specials	16 Aug 2004 15:01:48 -0000	1.9
+++ threading-specials	3 Oct 2004 00:57:13 -0000	1.10
@@ -821,13 +821,13 @@
 
 SB-VM:*STATIC-SPACE-FREE-POINTER* 
 SB-VM:*INITIAL-DYNAMIC-SPACE-FREE-POINTER* 
-SB-VM:*CURRENT-CATCH-BLOCK* 
+SB-VM:*CURRENT-CATCH-BLOCK* ; bound at thread entry (in C)
 SB-VM:*STATIC-SYMBOLS* 
 SB-VM:*CONTROL-STACK-START* ; safe, bound at thread entry
 SB-VM:*READ-ONLY-SPACE-FREE-POINTER* 
 SB-VM:*BINDING-STACK-START* ; safe, bound at thread entry
 SB-VM:*CONTROL-STACK-END* ; safe, bound at thread entry
-SB-VM::*CURRENT-UNWIND-PROTECT-BLOCK* 
+SB-VM::*CURRENT-UNWIND-PROTECT-BLOCK*  ; bound at thread entry (in C)
 SB-VM::*FREE-TLS-INDEX* 
 SB-VM::*BINDING-STACK-POINTER* 
 SB-VM::*ALLOCATION-POINTER*    ; may be mostly unused ?
@@ -842,7 +842,7 @@
 SB-IMPL::*CURRENT-UNWIND-PROTECT-BLOCK*
 SB-IMPL::*CURRENT-CATCH-BLOCK*
 SB-IMPL::*READ-ONLY-SPACE-FREE-POINTER*
-SB-VM::*ALIEN-STACK* 
+SB-VM::*ALIEN-STACK*  ; bound in create_thread_struct()
 
 SB-IMPL::*OBJECTS-PENDING-FINALIZATION*  ; needs locking for writers
 
@@ -965,12 +965,12 @@
 SB-KERNEL:*UNIVERSAL-FUN-TYPE* 
 SB-KERNEL:*COLD-INIT-COMPLETE-P* 
 SB-KERNEL:*UNIVERSAL-TYPE*                              ; readonly
-SB-KERNEL:*HANDLER-CLUSTERS* 
+SB-KERNEL:*HANDLER-CLUSTERS* 				; bound per-thread
 SB-KERNEL:*EMPTY-TYPE*                                  ; readonly
 SB-KERNEL:*MAXIMUM-ERROR-DEPTH* 
-SB-KERNEL:*CONDITION-RESTARTS* 
+SB-KERNEL:*CONDITION-RESTARTS* 				; bound per-thread
 SB-KERNEL:*TYPE-SYSTEM-INITIALIZED* 
-SB-KERNEL:*RESTART-CLUSTERS* 
+SB-KERNEL:*RESTART-CLUSTERS*                            ; bound per-thread
 SB-KERNEL::*MAKE-VALUES-TYPE-CACHED-CACHE-VECTOR* 
 SB-KERNEL::*BUILT-IN-CLASS-CODES*                       ; readonly
 SB-KERNEL::*DEF!STRUCT-TYPE-MAKE-LOAD-FORM-FUN*