ipc/glue/nsIIPCBackgroundChildCreateCallback.h

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/ipc/glue/nsIIPCBackgroundChildCreateCallback.h	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,70 @@
     1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
     1.6 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.7 +
     1.8 +#ifndef mozilla_ipc_nsiipcbackgroundchildcreatecallback_h
     1.9 +#define mozilla_ipc_nsiipcbackgroundchildcreatecallback_h
    1.10 +
    1.11 +#include "mozilla/Attributes.h"
    1.12 +#include "nsISupports.h"
    1.13 +
    1.14 +namespace mozilla {
    1.15 +namespace ipc {
    1.16 +
    1.17 +class PBackgroundChild;
    1.18 +
    1.19 +} // namespace ipc
    1.20 +} // namespace mozilla
    1.21 +
    1.22 +#define NS_IIPCBACKGROUNDCHILDCREATECALLBACK_IID                               \
    1.23 +  {0x4de01707, 0x70e3, 0x4181, {0xbc, 0x9f, 0xa3, 0xec, 0xfe, 0x74, 0x1a, 0xe3}}
    1.24 +
    1.25 +class NS_NO_VTABLE nsIIPCBackgroundChildCreateCallback : public nsISupports
    1.26 +{
    1.27 +public:
    1.28 +  typedef mozilla::ipc::PBackgroundChild PBackgroundChild;
    1.29 +
    1.30 +  NS_DECLARE_STATIC_IID_ACCESSOR(NS_IIPCBACKGROUNDCHILDCREATECALLBACK_IID)
    1.31 +
    1.32 +  // This will be called upon successful creation of a PBackgroundChild actor.
    1.33 +  // The actor is unique per-thread and must not be shared across threads. It
    1.34 +  // may be saved and reused on the same thread for as long as the thread lives.
    1.35 +  // After this callback BackgroundChild::GetForCurrentThread() will return the
    1.36 +  // same actor.
    1.37 +  virtual void
    1.38 +  ActorCreated(PBackgroundChild*) = 0;
    1.39 +
    1.40 +  // This will be called if for some reason the PBackgroundChild actor cannot be
    1.41 +  // created. This should never be called in child processes as the failure to
    1.42 +  // create the actor should result in the termination of the child process
    1.43 +  // first. This may be called for cross-thread actors in the main process.
    1.44 +  virtual void
    1.45 +  ActorFailed() = 0;
    1.46 +};
    1.47 +
    1.48 +NS_DEFINE_STATIC_IID_ACCESSOR(nsIIPCBackgroundChildCreateCallback,
    1.49 +                              NS_IIPCBACKGROUNDCHILDCREATECALLBACK_IID)
    1.50 +
    1.51 +#define NS_DECL_NSIIPCBACKGROUNDCHILDCREATECALLBACK                            \
    1.52 +  virtual void                                                                 \
    1.53 +  ActorCreated(mozilla::ipc::PBackgroundChild*) MOZ_OVERRIDE;                  \
    1.54 +  virtual void                                                                 \
    1.55 +  ActorFailed() MOZ_OVERRIDE;
    1.56 +
    1.57 +#define NS_FORWARD_NSIIPCBACKGROUNDCHILDCREATECALLBACK(_to)                    \
    1.58 +  virtual void                                                                 \
    1.59 +  ActorCreated(mozilla::ipc::PBackgroundChild* aActor) MOZ_OVERRIDE            \
    1.60 +  { _to ActorCreated(aActor); }                                                \
    1.61 +  virtual void                                                                 \
    1.62 +  ActorFailed() MOZ_OVERRIDE                                                   \
    1.63 +  { _to ActorFailed(); }
    1.64 +
    1.65 +#define NS_FORWARD_SAFE_NSIIPCBACKGROUNDCHILDCREATECALLBACK(_to)               \
    1.66 +  virtual void                                                                 \
    1.67 +  ActorCreated(mozilla::ipc::PBackgroundChild* aActor) MOZ_OVERRIDE            \
    1.68 +  { if (_to) { _to->ActorCreated(aActor); } }                                  \
    1.69 +  virtual void                                                                 \
    1.70 +  ActorFailed() MOZ_OVERRIDE                                                   \
    1.71 +  { if (_to) { _to->ActorFailed(); } }
    1.72 +
    1.73 +#endif // mozilla_ipc_nsiipcbackgroundchildcreatecallback_h

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