*** empty log message ***

NEWS

@@ -50,6 +50,23 @@ You can now pass any zero-argument procedure to 'system-async-mark'.
 The function 'system-async' will just return its argument unchanged
 now.
 
+** New functions 'call-with-blocked-asyncs' and
+   'call-with-unblocked-asyncs'
+
+The expression (call-with-blocked-asyncs PROC) will call PROC and will
+block execution of system asyncs for the current thread by one level
+while PROC runs.  Likewise, call-with-unblocked-asyncs will call a
+procedure and will unblock the execution of system asyncs by one
+level for the current thread.
+
+Only system asyncs are affected by these functions.
+
+** The functions 'mask-signals' and 'unmask-signals' are deprecated.
+
+Use 'call-with-blocked-asyncs' or 'call-with-unblocked-asyncs'
+instead.  Those functions are easier to use correctly and can be
+nested.
+
 ** New function 'unsetenv'.
 
 ** New macro 'define-syntax-public'.
@@ -138,6 +155,17 @@ during evaluation, but prior to evaluation.
 
 * Changes to the C interface
 
+** The value 'scm_mask_ints' is no longer writable.
+
+Previously, you could set scm_mask_ints directly.  This is no longer
+possible.  Use scm_c_call_with_blocked_asyncs and
+scm_c_call_with_unblocked_asyncs instead.
+
+** New functions scm_c_call_with_blocked_asyncs and
+   scm_c_call_with_unblocked_asyncs
+
+Like scm_call_with_blocked_asyncs etc. but for C functions.
+
 ** New snarfer macro SCM_DEFINE_PUBLIC.
 
 This is like SCM_DEFINE, but also calls scm_c_export for the defined

doc/ref/ChangeLog

@@ -1,3 +1,7 @@
+2002-10-10  Marius Vollmer  <mvo@zagadka.ping.de>
+
+	* scheme-scheduling.texi (System Asyncs): Updated.
+
 2002-10-07  Marius Vollmer  <mvo@zagadka.ping.de>
 
 	* scheme-scheduling.texi (Asyncs): Updated.

ice-9/ChangeLog

@@ -1,3 +1,10 @@
+2002-10-10  Marius Vollmer  <mvo@zagadka.ping.de>
+
+	* boot-9.scm (top-repl): Use 2 as the limit when saving the stack.
+	(error-catching-loop): use call-with-blocked-asyncs and
+	call-with-unblocked-asyncs instead of mask-signals and
+	unmask-signals.
+	
 2002-10-09  Neil Jerram  <neil@ossau.uklinux.net>
 
 	* buffered-input.scm (make-buffered-input-port): Build an

libguile/ChangeLog

@@ -1,3 +1,31 @@
+2002-10-10  Marius Vollmer  <mvo@zagadka.ping.de>
+
+	* root.h (scm_root_state): Added 'block_async' slot.
+	(scm_active_asyncs): Removed abbrev.
+	* root.c (scm_make_root): Initialize 'block_asyncs' slot.
+
+	* __scm.h (SCM_ASYNC_TICK): Do without the scm_active_asyncs
+	abbrev.
+
+	* async.h (scm_call_with_blocked_asyncs,
+	scm_call_with_unblocked_asyncs, scm_c_call_with_blocked_asyncs,
+	scm_c_call_with_unblocked_asyncs): New prototypes.
+	(scm_mask_signals, scm_unmask_signals): Deprecated.
+	(scm_mask_ints): Turned into a macro.
+	* async.c (scm_mask_ints): Removed.
+	(scm_run_asyncs): Do not set scm_mask_ints while running an async.
+	this should not be necessary.
+	(scm_async_click): Test block_asyncs instead of scm_mask_ints.
+	(scm_mask_signals, scm_unmask_signals): Deprecated.  Emit
+	deprecation warning and check for errornous use.  Set block_asyncs
+	instead of scm_mask_ints.
+	(increase_block, decrease_block, scm_call_with_blocked_asyncs,
+	scm_call_with_unblocked_asyncs, scm_c_call_with_blocked_asyncs,
+	scm_c_call_with_unblocked_asyncs): New.
+	
+	* script.c (scm_compile_shell_switches): Do not set scm_mask_ints.
+	Asyncs are enabled by default.
+
 2002-10-09  Neil Jerram  <neil@ossau.uklinux.net>
 
 	* vports.c (scm_make_soft_port): Allow vector argument to carry a