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Bug #20718 » pointer_bug.rb

replication using ffi gem - jcalvert (Jonathan Calvert), 09/06/2024 09:40 PM

 
require 'ffi'
require 'objspace'
require 'get_process_mem'
module LibC
extend FFI::Library
ffi_lib FFI::Library::LIBC

attach_function :malloc, [:size_t], :pointer
attach_function :free, [:pointer], :void
end
10_000_000.times do
buffer = LibC.malloc 100
buffer.write_string("foo")
LibC.free(buffer)
end
GC.start
puts "GC stats"
puts GC.stat
puts "-------------"
puts "memsize: #{GetProcessMem.new.mb}Mb"
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