diff options
Diffstat (limited to 'ipc/ipc_sync_channel.h')
| -rw-r--r-- | ipc/ipc_sync_channel.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/ipc/ipc_sync_channel.h b/ipc/ipc_sync_channel.h index 0386b8f..e7ff051 100644 --- a/ipc/ipc_sync_channel.h +++ b/ipc/ipc_sync_channel.h @@ -51,6 +51,17 @@ class SyncChannel : public ChannelProxy, sync_messages_with_no_timeout_allowed_ = value; } + // Sets this channel to only dispatch its incoming unblocking messages when it + // is itself blocked on sending a sync message, not when other channels are. + // + // Normally, any unblocking message coming from any channel can be dispatched + // when any (possibly other) channel is blocked on sending a message. This is + // needed in some cases to unblock certain loops (e.g. necessary when some + // processes share a window hierarchy), but may cause re-entrancy issues in + // some cases where such loops are not possible. This flags allows the tagging + // of some particular channels to not re-enter in such cases. + void SetRestrictDispatchToSameChannel(bool value); + protected: class ReceivedSyncMsgQueue; friend class ReceivedSyncMsgQueue; @@ -98,6 +109,9 @@ class SyncChannel : public ChannelProxy, return received_sync_msgs_; } + void set_restrict_dispatch(bool value) { restrict_dispatch_ = value; } + bool restrict_dispatch() const { return restrict_dispatch_; } + private: ~SyncContext(); // ChannelProxy methods that we override. @@ -125,6 +139,7 @@ class SyncChannel : public ChannelProxy, base::WaitableEvent* shutdown_event_; base::WaitableEventWatcher shutdown_watcher_; + bool restrict_dispatch_; }; private: |