text: /*
   * Tencent is pleased to support the open source community by making TBase available.  
   * 
   * Copyright (C) 2019 THL A29 Limited, a Tencent company.  All rights reserved.
   * 
   * TBase is licensed under the BSD 3-Clause License, except for the third-party component listed below. 
   * 
   * A copy of the BSD 3-Clause License is included in this file.
   * 
   * Other dependencies and licenses:
   * 
   * Open Source Software Licensed Under the PostgreSQL License: 
   * --------------------------------------------------------------------
   * 1. Postgres-XL XL9_5_STABLE
   * Portions Copyright (c) 2015-2016, 2ndQuadrant Ltd
   * Portions Copyright (c) 2012-2015, TransLattice, Inc.
   * Portions Copyright (c) 2010-2017, Postgres-XC Development Group
   * Portions Copyright (c) 1996-2015, The PostgreSQL Global Development Group
   * Portions Copyright (c) 1994, The Regents of the University of California
   * 
   * Terms of the PostgreSQL License: 
   * --------------------------------------------------------------------
   * Permission to use, copy, modify, and distribute this software and its
   * documentation for any purpose, without fee, and without a written agreement
   * is hereby granted, provided that the above copyright notice and this
   * paragraph and the following two paragraphs appear in all copies.
   * 
   * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
   * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
   * LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
   * DOCUMENTATION, EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   * 
   * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
   * AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
   * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS TO
   * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
   * 
   * 
   * Terms of the BSD 3-Clause License:
   * --------------------------------------------------------------------
   * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
   * 
   * 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
   * 
   * 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation 
   * and/or other materials provided with the distribution.
   * 
   * 3. Neither the name of THL A29 Limited nor the names of its contributors may be used to endorse or promote products derived from this software without 
   * specific prior written permission.
   * 
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 
   * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS 
   * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 
   * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 
   * DAMAGE.
   * 
   */
  #ifndef __UTIL_H__
  #define __UTIL_H__
  
  #include <stdlib.h>
  #include <stdio.h>
  /* related function declaration */
  extern void *Malloc(size_t size);
  extern void *Malloc0(size_t size);
  extern void *Realloc(void *ptr, size_t size);
  extern void Free(void *ptr);
  extern int Chdir(char *path, int flag);
  extern FILE *Fopen(char *path, char *mode);
  extern char *Strdup(const char *s);
  extern void TrimNl(char *s);
  extern void MyUsleep(long microsec);
  
  #define freeAndReset(x) do{Free(x);(x)=NULL;}while(0)
  #define myWEXITSTATUS(rc) ((rc) & 0x000000FF)
  
  #define MAXPATH (1024-1)
  #define MAXLINE (8192-1)
  #define MAXTOKEN (128-1)
  /* common macro define*/
  #define true 1
  #define false 0
  #define TRUE 1
  #define FALSE 0
  
  #endif /* __UTIL_H__ */
  