Issue #4328 has been updated by drbrain (Eric Hodel).

Description updated

I was going to use rb_thread_call_with_gvl for #6612, but the declaration was moved to internal.h which is not exported and causes a warning when compiling zlib.c.  Was this intentional?  The current location seems to allow use by core ruby only.

To be usable by extensions the declaration should be in include/ruby/intern.h alongside rb_thread_blocking_region.
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Feature #4328: export rb_thread_call_with_gvl()
https://bugs.ruby-lang.org/issues/4328#change-27736

Author: normalperson (Eric Wong)
Status: Closed
Priority: Normal
Assignee: ko1 (Koichi Sasada)
Category: core
Target version: 1.9.3


=begin
 I think it is general enough to remain supported along
 with the rest of the MRI C API, especially since
 rb_thread_blocking_region() exists and is supported.
 
 It's useful for interacting with certain C libraries that expect a
 user-supplied callback function so the extension can allocate a Ruby
 object inside the callback.
 
 It can also be easily made a no-op for Ruby implementations without a
 GVL.
=end



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