Sha256: 0bf095d308f042ad2e6868447996c13f73556a40d37d12769dfa40289faba5e0
Contents?: true
Size: 986 Bytes
Versions: 2615
Compression:
Stored size: 986 Bytes
Contents
require 'ffi'
module LibC
extend FFI::Library
ffi_lib FFI::Library::LIBC
callback :qsort_cmp, [ :pointer, :pointer ], :int
attach_function :qsort, [ :pointer, :ulong, :ulong, :qsort_cmp ], :int
freeze # Freeze the module variables, so that it can be shared across ractors.
end
p = FFI::MemoryPointer.new(:int, 3)
p.put_array_of_int32(0, [ 2, 3, 1 ]) # Write some unsorted data into the memory
# Ractor.make_shareable(p) # freeze the pointer to be shared between ractors instead of copied
puts "main -ptr=#{p.inspect}"
res = Ractor.new(p) do |p|
puts "ractor-ptr=#{p.inspect}"
puts "Before qsort #{p.get_array_of_int32(0, 3).join(', ')}"
LibC.qsort(p, 3, 4) do |p1, p2|
i1 = p1.get_int32(0)
i2 = p2.get_int32(0)
puts "In block: comparing #{i1} and #{i2}"
i1 < i2 ? -1 : i1 > i2 ? 1 : 0
end
puts "After qsort #{p.get_array_of_int32(0, 3).join(', ')}"
end.take
puts "After ractor termination #{p.get_array_of_int32(0, 3).join(', ')}"
Version data entries
2,615 entries across 2,615 versions & 21 rubygems