From: ngotogenome@...
Date: 2015-12-03T03:14:26+00:00
Subject: [ruby-core:71808] [Ruby trunk - Feature #11607] [PATCH] fiddle: release GVL for ffi_call

Issue #11607 has been updated by Naohisa Goto.


After r52723, SEGV occurred during Fiddle::TestFunc#test_qsort1 test/fiddle/test_func.rb:83 on Solaris 10 i386 on RubyCI.

(r52725) http://rubyci.s3.amazonaws.com/unstable10x/ruby-trunk/log/20151123T224815Z.fail.html.gz

Because this occurred in the CI environment, no other detailed information was available.

This is not reproduced on sparc Solaris.


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Feature #11607: [PATCH] fiddle: release GVL for ffi_call
https://bugs.ruby-lang.org/issues/11607#change-55213

* Author: Eric Wong
* Status: Closed
* Priority: Normal
* Assignee: Aaron Patterson
----------------------------------------
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


---Files--------------------------------
0001-fiddle-release-GVL-for-ffi_call.patch (11.3 KB)
fiddle-release-GVL-for-ffi_call-v2.patch (11.2 KB)


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