Implement safepointing of threads

runtime/vm/code_descriptors_test.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "platform/assert.h"
 #include "vm/globals.h"
 
 #include "vm/ast.h"
 #include "vm/assembler.h"
 #include "vm/code_descriptors.h"
@@ skipping 160 matching lines @@
 
 
 static void NativeFunc(Dart_NativeArguments args) {
   Dart_Handle i = Dart_GetNativeArgument(args, 0);
   Dart_Handle k = Dart_GetNativeArgument(args, 1);
   int64_t value = -1;
   EXPECT_VALID(Dart_IntegerToInt64(i, &value));
   EXPECT_EQ(10, value);
   EXPECT_VALID(Dart_IntegerToInt64(k, &value));
   EXPECT_EQ(20, value);
-  Isolate::Current()->heap()->CollectAllGarbage();
+  {
+    TransitionNativeToVM transition(Thread::Current());
+    Isolate::Current()->heap()->CollectAllGarbage();
+  }
 }
 
 
 static Dart_NativeFunction native_resolver(Dart_Handle name,
                                            int argument_count,
                                            bool* auto_setup_scope) {
   ASSERT(auto_setup_scope);
   *auto_setup_scope = false;
   return reinterpret_cast<Dart_NativeFunction>(&NativeFunc);
 }
@@ skipping 12 matching lines @@
       "    i = 10; s1 = 'abcd'; k = 20; s2 = 'B'; s3 = 'C';"
       "    func(i, k);"
       "    return i + k; }"
       "  static int moo() {"
       "    var i = A.foo();"
       "    Expect.equals(30, i);"
       "  }\n"
       "}\n";
   // First setup the script and compile the script.
   TestCase::LoadTestScript(kScriptChars, native_resolver);
+  TransitionNativeToVM transition(thread);
+
   EXPECT(ClassFinalizer::ProcessPendingClasses());
   const String& name = String::Handle(String::New(TestCase::url()));
   const Library& lib = Library::Handle(Library::LookupLibrary(name));
   EXPECT(!lib.IsNull());
   Class& cls = Class::Handle(
       lib.LookupClass(String::Handle(Symbols::New("A"))));
   EXPECT(!cls.IsNull());
 
   // Now compile the two functions 'A.foo' and 'A.moo'
   String& function_moo_name = String::Handle(String::New("moo"));
@@ skipping 17 matching lines @@
   stack_bitmap->Set(0, false);  // var i.
   stack_bitmap->Set(1, true);  // var s1.
   stack_bitmap->Set(2, false);  // var k.
   stack_bitmap->Set(3, true);  // var s2.
   stack_bitmap->Set(4, true);  // var s3.
   const Code& code = Code::Handle(function_foo.unoptimized_code());
   // Search for the pc of the call to 'func'.
   const PcDescriptors& descriptors =
       PcDescriptors::Handle(code.pc_descriptors());
   int call_count = 0;
-  PcDescriptors::Iterator iter(descriptors, RawPcDescriptors::kUnoptStaticCall);
+  PcDescriptors::Iterator iter(descriptors,
+                               RawPcDescriptors::kUnoptStaticCall);
   while (iter.MoveNext()) {
     stackmap_table_builder->AddEntry(iter.PcOffset(), stack_bitmap, 0);
     ++call_count;
   }
   // We can't easily check that we put the stackmap at the correct pc, but
   // we did if there was exactly one call seen.
   EXPECT(call_count == 1);
   const Array& stack_maps =
       Array::Handle(stackmap_table_builder->FinalizeStackmaps(code));
   code.set_stackmaps(stack_maps);
@@ skipping 96 matching lines @@
     if (token_positions[i] != it.TokenPos()) {
       OS::Print("[%" Pd "]: Expected: %" Pd " != %" Pd "\n",
                 i, token_positions[i], it.TokenPos());
     }
     EXPECT(token_positions[i] == it.TokenPos());
     i++;
   }
 }
 
 }  // namespace dart