118 lines
3.1 KiB
C++
118 lines
3.1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/*
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* nsConsoleService class declaration.
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*/
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#ifndef __nsconsoleservice_h__
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#define __nsconsoleservice_h__
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#include "mozilla/Attributes.h"
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#include "mozilla/Mutex.h"
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#include "nsInterfaceHashtable.h"
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#include "nsHashKeys.h"
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#include "nsIConsoleService.h"
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class nsConsoleService final : public nsIConsoleService,
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public nsIObserver
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{
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public:
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nsConsoleService();
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nsresult Init();
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NS_DECL_THREADSAFE_ISUPPORTS
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NS_DECL_NSICONSOLESERVICE
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NS_DECL_NSIOBSERVER
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void SetIsDelivering()
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{
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MOZ_ASSERT(NS_IsMainThread());
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MOZ_ASSERT(!mDeliveringMessage);
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mDeliveringMessage = true;
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}
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void SetDoneDelivering()
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{
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MOZ_ASSERT(NS_IsMainThread());
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MOZ_ASSERT(mDeliveringMessage);
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mDeliveringMessage = false;
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}
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// This is a variant of LogMessage which allows the caller to determine
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// if the message should be output to an OS-specific log. This is used on
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// B2G to control whether the message is logged to the android log or not.
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enum OutputMode {
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SuppressLog,
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OutputToLog
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};
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virtual nsresult LogMessageWithMode(nsIConsoleMessage* aMessage,
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OutputMode aOutputMode);
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typedef nsInterfaceHashtable<nsISupportsHashKey,
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nsIConsoleListener> ListenerHash;
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void CollectCurrentListeners(nsCOMArray<nsIConsoleListener>& aListeners);
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private:
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class MessageElement : public mozilla::LinkedListElement<MessageElement>
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{
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public:
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explicit MessageElement(nsIConsoleMessage* aMessage) : mMessage(aMessage)
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{}
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nsIConsoleMessage* Get()
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{
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return mMessage.get();
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}
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// Swap directly into an nsCOMPtr to avoid spurious refcount
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// traffic off the main thread in debug builds from
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// NSCAP_ASSERT_NO_QUERY_NEEDED().
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void swapMessage(nsCOMPtr<nsIConsoleMessage>& aRetVal)
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{
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mMessage.swap(aRetVal);
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}
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~MessageElement();
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private:
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nsCOMPtr<nsIConsoleMessage> mMessage;
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MessageElement(const MessageElement&) = delete;
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MessageElement& operator=(const MessageElement&) = delete;
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MessageElement(MessageElement&&) = delete;
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MessageElement& operator=(MessageElement&&) = delete;
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};
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~nsConsoleService();
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void ClearMessagesForWindowID(const uint64_t innerID);
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void ClearMessages();
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mozilla::LinkedList<MessageElement> mMessages;
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// The current size of mMessages.
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uint32_t mCurrentSize;
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// The maximum size of mMessages.
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uint32_t mMaximumSize;
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// Are we currently delivering a console message on the main thread? If
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// so, we suppress incoming messages on the main thread only, to avoid
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// infinite repitition.
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bool mDeliveringMessage;
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// Listeners to notify whenever a new message is logged.
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ListenerHash mListeners;
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// To serialize interesting methods.
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mozilla::Mutex mLock;
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};
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#endif /* __nsconsoleservice_h__ */
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