Todd Turnidge
0d501ad53d
This change add the ability to restart the vm through the service protocol. All isolates are killed, and then the main isolate is restarted cooperatively by the embedder. This change also fixes the message handler to prevent it from accidentally ignoring vm shutdown messages. Previously, we would stop handling messages whenever we hit an error (such as a compile error or an unhandled exception). This would leave shutdown requests sitting the oob queue, neglected. We now process *all* oob requests, up to the first shutdown request. When we hit a shutdown request, we clear the oob queue and process no more messages. To make all of this work, we had to change the return value of HandleMessage from bool to a new enum type, allowing the message handler to distinguish *normal* error cases from the more rarified shutdown and restart cases. R=johnmccutchan@google.com, zra@google.com Review URL: https://codereview.chromium.org/1371193005 .
42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#ifndef VM_NATIVE_MESSAGE_HANDLER_H_
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#define VM_NATIVE_MESSAGE_HANDLER_H_
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#include "include/dart_api.h"
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#include "include/dart_native_api.h"
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#include "vm/message_handler.h"
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namespace dart {
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// A NativeMessageHandler accepts messages and dispatches them to
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// native C handlers.
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class NativeMessageHandler : public MessageHandler {
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public:
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NativeMessageHandler(const char* name, Dart_NativeMessageHandler func);
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~NativeMessageHandler();
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const char* name() const { return name_; }
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Dart_NativeMessageHandler func() const { return func_; }
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MessageStatus HandleMessage(Message* message);
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#if defined(DEBUG)
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// Check that it is safe to access this handler.
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void CheckAccess();
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#endif
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// Delete this handlers when its last live port is closed.
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virtual bool OwnedByPortMap() const { return true; }
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private:
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char* name_;
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Dart_NativeMessageHandler func_;
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};
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} // namespace dart
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#endif // VM_NATIVE_MESSAGE_HANDLER_H_
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