Add support for using FFI in Ractor

All objects are shareable now when frozen.
All objects can be created in a non-main Ractor.

Typedefs are a global mutable state and are not accessable from Ractor other than the main Ractor.
So all Function, Struct, etc. must be defined in the main Ractor and can then be used in other Ractors.

1 files changed, 30 insertions, 0 deletions

diff --git a/spec/ffi/memorypointer_spec.rb b/spec/ffi/memorypointer_spec.rb
index c8d1b42..904fdc9 100644
--- a/spec/ffi/memorypointer_spec.rb
+++ b/spec/ffi/memorypointer_spec.rb
@@ -28,6 +28,19 @@ describe "MemoryPointer#total" do
     expect(MemoryPointer.new(1024).total).to eq 1024
   end
 end
+describe "MemoryPointer#clear" do
+  it "should clear the memory" do
+    ptr = MemoryPointer.new(:long)
+    ptr.write_long 1234
+    expect(ptr.read_long).to eq(1234)
+    ptr.clear
+    expect(ptr.read_long).to eq(0)
+  end
+  it "should deny changes when frozen" do
+    ptr = MemoryPointer.new(:long).freeze
+    expect{ ptr.clear }.to raise_error(RuntimeError, /memory write/)
+  end
+end
 describe "MemoryPointer#read_array_of_long" do
   it "foo" do
     ptr = MemoryPointer.new(:long, 1024)
@@ -76,3 +89,20 @@ describe "MemoryPointer return value" do
     expect(Stdio.fclose(fp)).to  eq 0 unless fp.nil? or fp.null?
   end
 end
+describe "#autorelease" do
+  it "should be true by default" do
+    expect(MemoryPointer.new(8).autorelease?).to be true
+  end
+
+  it "should return false when autorelease=(false)" do
+    ptr = MemoryPointer.new(8)
+    ptr.autorelease = false
+    expect(ptr.autorelease?).to be false
+    ptr.free
+  end
+
+  it "should deny changes when frozen" do
+    ptr = MemoryPointer.new(8).freeze
+    expect{ ptr.autorelease = false }.to raise_error(FrozenError)
+  end
+end