gecko-dev/xpcom/base/nsConsoleService.h

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/*
 * nsConsoleService class declaration.
 */

#ifndef __nsconsoleservice_h__
#define __nsconsoleservice_h__

#include "mozilla/Mutex.h"
#include "nsCOMPtr.h"
#include "nsHashtable.h"

#include "nsIConsoleService.h"

class nsConsoleService : public nsIConsoleService
{
public:
    nsConsoleService();
    nsresult Init();

    NS_DECL_ISUPPORTS
    NS_DECL_NSICONSOLESERVICE

private:
    ~nsConsoleService();

    // build (or find) a proxy for the listener
    nsresult GetProxyForListener(nsIConsoleListener* aListener,
                                 nsIConsoleListener** aProxy);

    // Circular buffer of saved messages
    nsIConsoleMessage **mMessages;

    // How big?
    PRUint32 mBufferSize;

    // Index of slot in mMessages that'll be filled by *next* log message
    PRUint32 mCurrent;

    // Is the buffer full? (Has mCurrent wrapped around at least once?)
    PRBool mFull;

    // Listeners to notify whenever a new message is logged.
    nsSupportsHashtable mListeners;

    // Current listener being notified of a logged error - to prevent
    // stack overflows.
    PRBool mListening;

    // To serialize interesting methods.
    mozilla::Mutex mLock;
};

#endif /* __nsconsoleservice_h__ */