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Implement Fiddle::Pointer.read and .write on the FFI backend #165

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Merged
kou merged 1 commit into from
Dec 11, 2024
+8 −4
Merged

Implement Fiddle::Pointer.read and .write on the FFI backend #165

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8 changes: 8 additions & 0 deletions lib/fiddle/ffi_backend.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -261,6 +261,14 @@ def self.to_ptr(value)
end
end

def self.write(addr, bytes)
FFI::Pointer.new(addr).write_bytes(bytes)
end

def self.read(addr, len)
FFI::Pointer.new(addr).read_bytes(len)
end

class << self
alias [] to_ptr
end
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4 changes: 0 additions & 4 deletions test/fiddle/test_pointer.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -11,10 +11,6 @@ def dlwrap arg
end

def test_can_read_write_memory
if ffi_backend?
omit("Fiddle::Pointer.{read,write} don't exist in FFI backend")
end

# Allocate some memory
Fiddle::Pointer.malloc(Fiddle::SIZEOF_VOIDP, Fiddle::RUBY_FREE) do |pointer|
address = pointer.to_i
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