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Marius Vollmer 2002-10-09 22:49:00 +00:00
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28
NEWS
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@ -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