Toward precompiled snapshots.

runtime/vm/dart_api_impl.cc

 // Copyright (c) 2013, 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 "include/dart_api.h"
 #include "include/dart_mirrors_api.h"
 #include "include/dart_native_api.h"
 
 #include "platform/assert.h"
 #include "vm/class_finalizer.h"
 #include "vm/compiler.h"
 #include "vm/dart.h"
 #include "vm/dart_api_impl.h"
 #include "vm/dart_api_message.h"
 #include "vm/dart_api_state.h"
 #include "vm/dart_entry.h"
 #include "vm/debugger.h"
 #include "vm/debuginfo.h"
 #include "vm/exceptions.h"
 #include "vm/flags.h"
 #include "vm/growable_array.h"
 #include "vm/lockers.h"
 #include "vm/message.h"
 #include "vm/message_handler.h"
 #include "vm/native_entry.h"
 #include "vm/object.h"
 #include "vm/object_store.h"
 #include "vm/os_thread.h"
 #include "vm/port.h"
+#include "vm/precompiler.h"
 #include "vm/profiler.h"
 #include "vm/resolver.h"
 #include "vm/reusable_handles.h"
 #include "vm/service_event.h"
 #include "vm/service_isolate.h"
 #include "vm/service.h"
 #include "vm/stack_frame.h"
 #include "vm/symbols.h"
 #include "vm/tags.h"
 #include "vm/thread_registry.h"
@@ skipping 1481 matching lines @@
   I->heap()->CollectAllGarbage();
 #if defined(DEBUG)
   FunctionVisitor check_canonical(I);
   I->heap()->IterateObjects(&check_canonical);
 #endif  // #if defined(DEBUG).
 
   // Since this is only a snapshot the root library should not be set.
   I->object_store()->set_root_library(Library::Handle(Z));
   FullSnapshotWriter writer(vm_isolate_snapshot_buffer,
                             isolate_snapshot_buffer,
+                            NULL, /* instructions_snapshot_buffer */
                             ApiReallocate,
-                            false /* snapshot_code */);
+                            false, /* snapshot_code */
+                            true /* vm_isolate_is_symbolic */);
   writer.WriteFullSnapshot();
   *vm_isolate_snapshot_size = writer.VmIsolateSnapshotSize();
   *isolate_snapshot_size = writer.IsolateSnapshotSize();
   return Api::Success();
 }
 
 
 static Dart_Handle createLibrarySnapshot(Dart_Handle library,
                                          uint8_t** buffer,
                                          intptr_t* size) {
@@ skipping 4317 matching lines @@
   TimelineStream* stream = isolate->GetEmbedderStream();
   ASSERT(stream != NULL);
   TimelineEvent* event = stream->StartEvent();
   if (event != NULL) {
     event->AsyncEnd(label, async_id);
     event->Complete();
   }
   return Api::Success();
 }
 
+
+static void Precompile(Isolate* isolate, Dart_Handle* result) {
+  ASSERT(isolate != NULL);
+  const Error& error = Error::Handle(isolate, Precompiler::CompileAll());
+  if (error.IsNull()) {
+    *result = Api::Success();
+  } else {
+    *result = Api::NewHandle(isolate, error.raw());
+  }
+}
+
+
+DART_EXPORT Dart_Handle Dart_Precompile() {
+  DARTSCOPE(Thread::Current());
+  Dart_Handle result = Api::CheckAndFinalizePendingClasses(I);
+  if (::Dart_IsError(result)) {
+    return result;
+  }
+  CHECK_CALLBACK_STATE(I);
+  Precompile(I, &result);
+  return result;
+}
+
+
+DART_EXPORT Dart_Handle Dart_CreatePrecompiledSnapshot(
+    uint8_t** vm_isolate_snapshot_buffer,
+    intptr_t* vm_isolate_snapshot_size,
+    uint8_t** isolate_snapshot_buffer,
+    intptr_t* isolate_snapshot_size,
+    uint8_t** instructions_snapshot_buffer,
+    intptr_t* instructions_snapshot_size) {
+  ASSERT(FLAG_load_deferred_eagerly);
+  DARTSCOPE(Thread::Current());
+  if (vm_isolate_snapshot_buffer == NULL) {
+    RETURN_NULL_ERROR(vm_isolate_snapshot_buffer);
+  }
+  if (vm_isolate_snapshot_size == NULL) {
+    RETURN_NULL_ERROR(vm_isolate_snapshot_size);
+  }
+  if (isolate_snapshot_buffer == NULL) {
+    RETURN_NULL_ERROR(isolate_snapshot_buffer);
+  }
+  if (isolate_snapshot_size == NULL) {
+    RETURN_NULL_ERROR(isolate_snapshot_size);
+  }
+  if (instructions_snapshot_buffer == NULL) {
+    RETURN_NULL_ERROR(instructions_snapshot_buffer);
+  }
+  if (instructions_snapshot_size == NULL) {
+    RETURN_NULL_ERROR(instructions_snapshot_size);
+  }
+  // Finalize all classes if needed.
+  Dart_Handle state = Api::CheckAndFinalizePendingClasses(I);
+  if (::Dart_IsError(state)) {
+    return state;
+  }
+  I->heap()->CollectAllGarbage();
+  PrecompiledSnapshotWriter writer(vm_isolate_snapshot_buffer,
+                                   isolate_snapshot_buffer,
+                                   instructions_snapshot_buffer,
+                                   ApiReallocate);
+  writer.WriteFullSnapshot();
+  *vm_isolate_snapshot_size = writer.VmIsolateSnapshotSize();
+  *isolate_snapshot_size = writer.IsolateSnapshotSize();
+  *instructions_snapshot_size = writer.InstructionsSnapshotSize();
+
+  return Api::Success();
+}
+
 }  // namespace dart