source: cpp/frams/errmgr/errmanager.h @ 351

// This file is a part of Framsticks SDK.  http://www.framsticks.com/
// Copyright (C) 1999-2015  Maciej Komosinski and Szymon Ulatowski.
// See LICENSE.txt for details.

#ifndef _ERRMANAGER_H_
#define _ERRMANAGER_H_

#include <frams/util/list.h>
#include <frams/util/sstring.h>
#include <common/framsg.h>
#include <common/threads.h>

class ErrorHandlerBase;

class ErrorManager
{
        friend class ErrorHandlerBase;
        SListTempl<ErrorHandlerBase*> handlers;
        void send(int level, const char *o, const char *m, const char *bl, int w);
public:
        int find(ErrorHandlerBase *r) { return handlers.find(r); }
        int add(ErrorHandlerBase *r);
        void remove(int i);
        void remove(ErrorHandlerBase *r);
        void removeAll();
        void send(const char *o, const char *m, const char *bl, int w)
        {
                send(handlers.size() - 1, o, m, bl, w);
        }
        ~ErrorManager() { removeAll(); }
};

extern THREAD_LOCAL_DECL(ErrorManager, errmgr_instance);

////////////////////////////////////////

class ErrorHandlerBase
{
        friend class ErrorManager;
protected:
        ErrorManager* mgr;
        int options;

public:

        enum HandlerOptions
        {
                DontBlock = 1, CannotBeBlocked = 2, DontEnable = 4, Paused = 8
        };

        void FMprintf(const char *o, const char *m, int w, const char *bl, ...);
        void send(const char *o, const char *m, const char *bl, int w);

        bool isEnabled() { return mgr ? 1 : 0; }
        void enable();
        void disable();
        bool isPaused() { return (options & Paused) != 0; }
        void pause();
        void resume();

        ErrorHandlerBase(int opts = 0) :mgr(0), options(opts)
        {
                if (!(options&DontEnable)) enable();
        }
        virtual ~ErrorHandlerBase()
        {
                disable();
        }

        virtual void handle(const char *o, const char *m, const char *bl, int w) {}
};

///////////////////////////////////////////

class ErrorHandler : public ErrorHandlerBase
{
protected:
        int maxlevel, errcount, warncount, storlevel, storcount, infocount;
        SString msgs;

public:

        void reset() { maxlevel = FMLV_INFO - 1; errcount = warncount = storcount = infocount = 0; msgs = 0; }

        enum Options2
        {
                StoreFirstMessage = 16, StoreAllMessages = 32
        };

        int getErrorCount()       { return errcount; }
        int getWarningCount()     { return warncount; }
        int getInfoCount()        { return infocount; }
        int getStoredCount()      { return storcount; }
        int getErrorLevel()       { return maxlevel; }
        const SString& getMessages() { return msgs; }

        ErrorHandler(int opts = 0, int store = FMLV_ERROR) :ErrorHandlerBase(opts), storlevel(store)
        {
                reset();
        }

        void handle(const char *o, const char *m, const char *bl, int w);
};

class ErrorRedirector : public ErrorHandlerBase
{
        ErrorManager *other_mgr;
public:
        ErrorRedirector(ErrorManager *om)
                :ErrorHandlerBase(), other_mgr(om) {}

        void handle(const char *o, const char *m, const char *bl, int w)
        {
                other_mgr->send(o, m, bl, w);
        }
};

#endif