[ruby-core:95689] [Ruby master Feature#16290] Add Ruby C API to acquire aligned memory
From:
shyouhei@...
Date:
2019-11-05 07:46:10 UTC
List:
ruby-core #95689
Issue #16290 has been updated by shyouhei (Shyouhei Urabe). naruse (Yui NARUSE) wrote: > shyouhei (Shyouhei Urabe) wrote: > > I'm not in favor of this. There are many ways to allocate a memory region, like mmap(2). Do we have to provide ruby counterparts for every and all of them? > > rb_aligned_malloc uses 5 underlying implementations. > It's hard to make C-extension developer to re-develop this. In case of this request, ImageMagick already _does_ have aligned allocator. If we provide one we would use any of 5 backends but that is not required at all. They already have it. What is wanted is a way to notify ruby about their memory usage. ---------------------------------------- Feature #16290: Add Ruby C API to acquire aligned memory https://bugs.ruby-lang.org/issues/16290#change-82477 * Author: watson1978 (Shizuo Fujita) * Status: Open * Priority: Normal * Assignee: * Target version: ---------------------------------------- Related to https://github.com/ruby/ruby/pull/2614 I have required to acquire aligned memory in Ruby C-extension library (https://github.com/rmagick/rmagick/pull/832). I want an API that notifies acquired size to Ruby GC. Of course, I know that we can implement a similar function in extension library using rb_gc_adjust_memory_usage(). However, if Ruby have the API, we can easily use it in some extension libraries. -- https://bugs.ruby-lang.org/ Unsubscribe: <mailto:[email protected]?subject=unsubscribe> <http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>