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83 lines
2.3 KiB
C++
83 lines
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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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 MOZ_FINAL : public nsIConsoleService
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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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void SetIsDelivering() {
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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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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 *message, OutputMode outputMode);
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typedef nsInterfaceHashtable<nsISupportsHashKey, nsIConsoleListener> ListenerHash;
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void EnumerateListeners(ListenerHash::EnumReadFunction aFunction, void* aClosure);
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private:
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~nsConsoleService();
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// Circular buffer of saved messages
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nsIConsoleMessage **mMessages;
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// How big?
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uint32_t mBufferSize;
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// Index of slot in mMessages that'll be filled by *next* log message
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uint32_t mCurrent;
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// Is the buffer full? (Has mCurrent wrapped around at least once?)
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bool mFull;
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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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