When you change this to true, you may need to add more tests.
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Some external functions I wish to call may take a long time
and unnecessarily block other threads. This may lead to performance
regressions for fast functions as releasing/acquiring the GVL is not
cheap, but can improve performance for long-running functions
in multi-threaded applications.
This also means we must reacquire the GVL when calling Ruby-defined
callbacks for Fiddle::Closure, meaning we must detect whether the
current thread has the GVL by exporting ruby_thread_has_gvl_p
in internal.h
* ext/fiddle/function.c (struct nogvl_ffi_call_args):
new struct for GVL release
(nogvl_ffi_call): new function
(function_call): adjust for GVL release
[ruby-core:71642] [Feature #11607]
* ext/fiddle/closure.c (struct callback_args):
new struct for GVL acquire
(with_gvl_callback): adjusted original callback function
(callback): wrapper for conditional GVL acquire
* ext/fiddle/depend: add dependencies
* ext/fiddle/extconf.rb: include top_srcdir for internal.h
* internal.h (ruby_thread_has_gvl_p): expose for fiddle
* vm_core.h (ruby_thread_has_gvl_p): moved to internal.h
* test/fiddle/test_function.rb (test_nogvl_poll): new test
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* ext/fiddle/function.c (function_call): fix memory leak when an
exception occurs at argument conversion or the function call.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45301 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/fiddle/lib/fiddle/import.rb (import_function, bind_function): set function name by using the :name keyword argument.
Re-fixes r38243. [ruby-core:50566]
* test/fiddle/test_function.rb (test_name): test for the :name keyword argument and Fiddle::Function#name.
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* test/fiddle/*: testing fiddle extension
* ext/dl/lib/dl.rb: Requiring fiddle if it is available
* ext/dl/lib/dl/callback.rb: using Fiddle if it is available
* ext/dl/lib/dl/func.rb: ditto
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