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// stdafx.h : include file for standard system include files,
// or project specific include files that are used frequently, but
// are changed infrequently
//

/**
* Copyright (C) 2008 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/

#pragma once

#if defined(_WIN32)
const bool debug=true;
#else
const bool debug=false;
#endif

#include <memory>
#include "stdlib.h"
#include "string.h"
#include "limits.h"

extern void dbexit(int returnCode, const char *whyMsg = "");

inline void * ourmalloc(size_t size) {
    void *x = malloc(size);
    if ( x == 0 ) dbexit(42, "malloc fails");
    return x;
}

inline void * ourrealloc(void *ptr, size_t size) {
    void *x = realloc(ptr, size);
    if ( x == 0 ) dbexit(43, "realloc fails");
    return x;
}

#define malloc ourmalloc
#define realloc ourrealloc

#include "targetver.h"

#include <string>
#include "time.h"

using namespace std;

/* these are manipulated outside of mutexes, so be careful */
struct Assertion {
    Assertion() {
        msg[0] = msg[127] = 0;
        context[0] = context[127] = 0;
        file = "";
        line = 0;
        when = 0;
    }
    char msg[128];
    char context[128];
    const char *file;
    unsigned line;
    time_t when;
    void set(const char *m, const char *ctxt, const char *f, unsigned l) {
        strncpy(msg, m, 127);
        strncpy(context, ctxt, 127);
        file = f;
        line = l;
        when = time(0);
    }
    string toString();
    bool isSet() {
        return when != 0;
    }
};

enum {
    AssertRegular = 0,
    AssertW = 1,
    AssertMsg = 2,
    AssertUser = 3
};

/* last assert of diff types: regular, wassert, msgassert, uassert: */
extern Assertion lastAssert[4];

// you can catch these
class AssertionException {
public:
    string msg;
    AssertionException() { }
    virtual bool severe() {
        return true;
    }
    virtual bool isUserAssertion() {
        return false;
    }
    virtual string toString() {
        return msg;
    }
};

/* we use the same mechanism for bad things the user does -- which are really just errors */
class UserAssertionException : public AssertionException {
public:
    UserAssertionException(const char *_msg) {
        msg = _msg;
    }
    UserAssertionException(string _msg) {
        msg = _msg;
    }
    virtual bool severe() {
        return false;
    }
    virtual bool isUserAssertion() {
        return true;
    }
    virtual string toString() {
        return "userassert:" + msg;
    }
};

class MsgAssertionException : public AssertionException {
public:
    MsgAssertionException(const char *_msg) {
        msg = _msg;
    }
    virtual bool severe() {
        return false;
    }
    virtual string toString() {
        return "massert:" + msg;
    }
};

void asserted(const char *msg, const char *file, unsigned line);
void wasserted(const char *msg, const char *file, unsigned line);
void uasserted(const char *msg);
void msgasserted(const char *msg);

#ifdef assert
#undef assert
#endif

#define assert(_Expression) (void)( (!!(_Expression)) || (asserted(#_Expression, __FILE__, __LINE__), 0) )

/* "user assert". if asserts, user did something wrong, not our code */
//#define uassert(_Expression) (void)( (!!(_Expression)) || (uasserted(#_Expression, __FILE__, __LINE__), 0) )
#define uassert(msg,_Expression) (void)( (!!(_Expression)) || (uasserted(msg), 0) )

#define xassert(_Expression) (void)( (!!(_Expression)) || (asserted(#_Expression, __FILE__, __LINE__), 0) )

#define yassert 1

/* warning only - keeps going */
#define wassert(_Expression) (void)( (!!(_Expression)) || (wasserted(#_Expression, __FILE__, __LINE__), 0) )

/* display a message, no context, and throw assertionexception

easy way to throw an exception and log something without our stack trace
display happening.
*/
#define massert(msg,_Expression) (void)( (!!(_Expression)) || (msgasserted(msg), 0) )

/* dassert is 'debug assert' -- might want to turn off for production as these
could be slow.
*/
#define dassert assert

#include <stdio.h>
#include <sstream>
#include <signal.h>

typedef char _TCHAR;

#include <iostream>
#include <fstream>
#include <map>
#include <vector>
#include <set>
//using namespace std;

#if !defined(_WIN32)
typedef int HANDLE;
inline void strcpy_s(char *dst, unsigned len, const char *src) {
    strcpy(dst, src);
}
#else
typedef void *HANDLE;
#endif

//#if defined(CHAR)
//#error CHAR already defined?
//#endif

//#if defined(_WIN32_WINNT)
//typedef wchar_t CHAR;
//#else
// more to be done...linux unicode is 32 bit.
//typedef unsigned short CHAR; // 16 bit unicode
//#endif

#define null (0)

#include <vector>

// for debugging
typedef struct _Ints {
    int i[100];
} *Ints;
typedef struct _Chars {
    char c[200];
} *Chars;

typedef char CHARS[400];

typedef struct _OWS {
    int size;
    char type;
    char string[400];
} *OWS;

class Database;
extern Database *database;
extern const char *curNs;

/* for now, running on win32 means development not production --
use this to log things just there.
*/
#if defined(_WIN32)
#define DEV if( 0 )
#define WIN if( 1 )
#else
#define DEV if( 0 )
#define WIN if( 0 )
#endif

#define DEBUGGING if( 0 )

extern unsigned occasion;
extern unsigned once;

#define OCCASIONALLY if( ++occasion % 16 == 0 )
#define RARELY if( ++occasion % 128 == 0 )
#define ONCE if( ++once == 1 )

#if defined(_WIN32)
inline void our_debug_free(void *p) {
    unsigned *u = (unsigned *) p;
    u[0] = 0xEEEEEEEE;
    u[1] = 0xEEEEEEEE;
    free(p);
}
#define free our_debug_free
#endif

#define exit dbexit

#undef yassert
#include <boost/filesystem/convenience.hpp>
#include <boost/filesystem/operations.hpp>
#undef assert
#define assert xassert
#define yassert 1
using namespace boost::filesystem;

#include "util/goodies.h"
#include "util/log.h"

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