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71 lines
3.1 KiB
C++
71 lines
3.1 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_ipc_nsiipcbackgroundchildcreatecallback_h
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#define mozilla_ipc_nsiipcbackgroundchildcreatecallback_h
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#include "mozilla/Attributes.h"
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#include "nsISupports.h"
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namespace mozilla {
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namespace ipc {
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class PBackgroundChild;
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} // namespace ipc
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} // namespace mozilla
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#define NS_IIPCBACKGROUNDCHILDCREATECALLBACK_IID \
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{0x4de01707, 0x70e3, 0x4181, {0xbc, 0x9f, 0xa3, 0xec, 0xfe, 0x74, 0x1a, 0xe3}}
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class NS_NO_VTABLE nsIIPCBackgroundChildCreateCallback : public nsISupports
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{
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public:
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typedef mozilla::ipc::PBackgroundChild PBackgroundChild;
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NS_DECLARE_STATIC_IID_ACCESSOR(NS_IIPCBACKGROUNDCHILDCREATECALLBACK_IID)
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// This will be called upon successful creation of a PBackgroundChild actor.
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// The actor is unique per-thread and must not be shared across threads. It
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// may be saved and reused on the same thread for as long as the thread lives.
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// After this callback BackgroundChild::GetForCurrentThread() will return the
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// same actor.
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virtual void
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ActorCreated(PBackgroundChild*) = 0;
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// This will be called if for some reason the PBackgroundChild actor cannot be
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// created. This should never be called in child processes as the failure to
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// create the actor should result in the termination of the child process
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// first. This may be called for cross-thread actors in the main process.
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virtual void
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ActorFailed() = 0;
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};
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NS_DEFINE_STATIC_IID_ACCESSOR(nsIIPCBackgroundChildCreateCallback,
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NS_IIPCBACKGROUNDCHILDCREATECALLBACK_IID)
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#define NS_DECL_NSIIPCBACKGROUNDCHILDCREATECALLBACK \
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virtual void \
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ActorCreated(mozilla::ipc::PBackgroundChild*) MOZ_OVERRIDE; \
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virtual void \
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ActorFailed() MOZ_OVERRIDE;
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#define NS_FORWARD_NSIIPCBACKGROUNDCHILDCREATECALLBACK(_to) \
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virtual void \
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ActorCreated(mozilla::ipc::PBackgroundChild* aActor) MOZ_OVERRIDE \
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{ _to ActorCreated(aActor); } \
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virtual void \
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ActorFailed() MOZ_OVERRIDE \
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{ _to ActorFailed(); }
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#define NS_FORWARD_SAFE_NSIIPCBACKGROUNDCHILDCREATECALLBACK(_to) \
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virtual void \
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ActorCreated(mozilla::ipc::PBackgroundChild* aActor) MOZ_OVERRIDE \
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{ if (_to) { _to->ActorCreated(aActor); } } \
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virtual void \
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ActorFailed() MOZ_OVERRIDE \
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{ if (_to) { _to->ActorFailed(); } }
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#endif // mozilla_ipc_nsiipcbackgroundchildcreatecallback_h
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