memalloc.h

一个学习SNMP项目：tmoerlan.

/* snap-1.0. Copyright (C) 2000 by Jonathan T. Moore and Michael Hicks.
 *
 * memalloc.h : macros for doing memory allocation. Each allocation
 *   checks for successful allocation, and exits upon failure. Macro
 *   is used mainly for code readability.
 *
 * $Id: memalloc.h,v 1.2 2003/09/17 11:26:10 tmoerlan Exp $
 */

#ifndef _SNAP_MEMALLOC_H_
#define _SNAP_MEMALLOC_H_

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "timers.h"

#ifdef NONZERO_MALLOC
#define memalloc(ptr,t,sz)                                        \
  { void *_result;                                                \
    print_anti_timer(12,"memalloc");                              \
    _result = (void *)malloc(sz);                                 \
    if (_result == NULL) {                                        \
      fprintf(stderr,"%s:%d: malloc failed\n",__FILE__,__LINE__); \
      fflush(stderr);                                             \
      exit(1);                                                    \
    }                                                             \
    (ptr) = (t)_result;                                           \
    print_timer(12,"memalloc");                                   \
  } 
#else
#define memalloc(ptr,t,sz)                                        \
  { void *_result;                                                \
    print_anti_timer(12,"memalloc");                              \
    _result = (void *)malloc(sz);                                 \
    if (_result == NULL) {                                        \
      fprintf(stderr,"%s:%d: malloc failed\n",__FILE__,__LINE__); \
      fflush(stderr);                                             \
      exit(1);                                                    \
    }                                                             \
    bzero(_result,sz);                                            \
    (ptr) = (t)_result;                                           \
    print_timer(12,"memalloc");                                   \
} 
#endif /* NONZERO_MALLOC */
#endif /* _SNAP_MEMALLOC_H_ */