trunk/src/memory.c

/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *  memory.c: Memory utilities.
 *
 *  Copyright (C) 2002 by the past and present ircd coders, and others.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 *  USA
 *
 *  $Id$
 */


#include "stdinc.h"
#include "ircd_defs.h"
#include "irc_string.h"
#include "memory.h"
#include "log.h"
#include "restart.h"


/*
 * MyMalloc - allocate memory, call outofmemory on failure
 */
void *
MyMalloc(size_t size)
{
  void *ret = calloc(1, size);

  if (ret == NULL)
    outofmemory();

  return ret;
}

/*
 * MyRealloc - reallocate memory, call outofmemory on failure
 */
void *
MyRealloc(void *x, size_t y)
{
  void *ret = realloc(x, y);

  if (ret == NULL)
    outofmemory();

  return ret;
}

void
MyFree(void *x)
{
  if (x)
    free(x);
}

void *
xstrdup(const char *s)
{
  void *ret = malloc(strlen(s) + 1);

  if (ret == NULL)
    outofmemory();

  strcpy(ret, s);

  return ret;
}

void *
xstrndup(const char *s, size_t len)
{
  void *ret = malloc(len + 1);

  if (ret == NULL)
    outofmemory();

  strlcpy(ret, s, len + 1);

  return ret;
}

/* outofmemory()
 *
 * input        - NONE
 * output       - NONE
 * side effects - simply try to report there is a problem.
 *                Abort if it was called more than once
 */
void
outofmemory(void)
{
  static int was_here = 0;

  if (was_here++)
    abort();

  ilog(LOG_TYPE_IRCD, "Out of memory: restarting server...");
  restart("Out of Memory");
}

#ifndef NDEBUG
/*
 * frob some memory. debugging time.
 * -- adrian
 */
void
mem_frob(void *data, int len)
{
  /* correct for Intel only! little endian */
  unsigned char b[4] = { 0xef, 0xbe, 0xad, 0xde };
  int i;
  char *cdata = data;

  for (i = 0; i < len; i++)
  {
    *cdata = b[i % 4];
    cdata++;
  }
}
#endif
Revision:	1646
Committed:	Wed Nov 7 21:02:43 2012 UTC (12 years, 9 months ago) by michael
Content type:	text/x-csrc
File size:	2463 byte(s)
Log Message:	- First pass of conf parser stabilization/cleanup
#	User	Rev	Content
1	adx	30	/*
2			* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3			* memory.c: Memory utilities.
4			*
5			* Copyright (C) 2002 by the past and present ircd coders, and others.
6			*
7			* This program is free software; you can redistribute it and/or modify
8			* it under the terms of the GNU General Public License as published by
9			* the Free Software Foundation; either version 2 of the License, or
10			* (at your option) any later version.
11			*
12			* This program is distributed in the hope that it will be useful,
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15			* GNU General Public License for more details.
16			*
17			* You should have received a copy of the GNU General Public License
18			* along with this program; if not, write to the Free Software
19			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20			* USA
21			*
22	knight	31	* $Id$
23	adx	30	*/
24
25
26			#include "stdinc.h"
27			#include "ircd_defs.h"
28			#include "irc_string.h"
29			#include "memory.h"
30	michael	1309	#include "log.h"
31	adx	30	#include "restart.h"
32
33
34			/*
35			* MyMalloc - allocate memory, call outofmemory on failure
36			*/
37			void *
38			MyMalloc(size_t size)
39			{
40			void *ret = calloc(1, size);
41
42			if (ret == NULL)
43			outofmemory();
44	michael	1011
45			return ret;
46	adx	30	}
47
48			/*
49			* MyRealloc - reallocate memory, call outofmemory on failure
50			*/
51			void *
52			MyRealloc(void *x, size_t y)
53			{
54			void *ret = realloc(x, y);
55
56			if (ret == NULL)
57			outofmemory();
58	michael	1011
59			return ret;
60	adx	30	}
61
62			void
63			MyFree(void *x)
64			{
65			if (x)
66			free(x);
67			}
68
69	michael	1646	void *
70			xstrdup(const char *s)
71	adx	30	{
72	michael	1646	void *ret = malloc(strlen(s) + 1);
73
74			if (ret == NULL)
75			outofmemory();
76
77			strcpy(ret, s);
78
79			return ret;
80	adx	30	}
81
82	michael	1646	void *
83			xstrndup(const char *s, size_t len)
84			{
85			void *ret = malloc(len + 1);
86
87			if (ret == NULL)
88			outofmemory();
89
90			strlcpy(ret, s, len + 1);
91
92			return ret;
93			}
94
95	adx	30	/* outofmemory()
96			*
97			* input - NONE
98			* output - NONE
99			* side effects - simply try to report there is a problem.
100			* Abort if it was called more than once
101			*/
102			void
103			outofmemory(void)
104			{
105			static int was_here = 0;
106
107	michael	1011	if (was_here++)
108	adx	30	abort();
109
110	michael	1247	ilog(LOG_TYPE_IRCD, "Out of memory: restarting server...");
111	adx	30	restart("Out of Memory");
112			}
113	michael	1011
114			#ifndef NDEBUG
115			/*
116			* frob some memory. debugging time.
117			* -- adrian
118			*/
119			void
120			mem_frob(void *data, int len)
121			{
122			/* correct for Intel only! little endian */
123			unsigned char b[4] = { 0xef, 0xbe, 0xad, 0xde };
124			int i;
125			char *cdata = data;
126
127			for (i = 0; i < len; i++)
128			{
129			*cdata = b[i % 4];
130			cdata++;
131			}
132			}
133			#endif