1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
/* Part of SWI-Prolog
Author: Jan Wielemaker
E-mail: J.Wielemaker@vu.nl
WWW: http://www.swi-prolog.org
Copyright (c) 2015-2021, University of Amsterdam
VU University Amsterdam
SWI-Prolog Solutions b.v.
All rights reserved.
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.
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 OWNER 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.
*/
#include <config.h>
#include <SWI-Prolog.h>
#include "error.h"
#include <malloc.h>
#include <errno.h>
static functor_t FUNCTOR_equals2;
static int
addNameInteger(term_t list, const char *name, intptr_t val)
{ term_t head = PL_new_term_ref();
if ( !PL_unify_list(list, head, list) )
return FALSE;
if ( !PL_unify_term(head, PL_FUNCTOR, FUNCTOR_equals2,
PL_CHARS, name, PL_INTPTR, val) )
return FALSE;
PL_reset_term_refs(head);
return TRUE;
}
/** memory_statistics(-Stats) is det.
Provide statistics on memory allocation if the system provides
mallinfo(), the values of this structure are added to the list. See
"info mallinfo" for a the defined names and their meaning. Unused values
are not included. If mallinfo2() is provided, this is used instead,
avoiding returning results modulo 2^32 on 64 bit systems.
*/
#ifdef HAVE_MALLINFO2 /* glibc >= 2.33 */
#define mallinfo mallinfo2
#ifndef HAVE_MALLINFO
#define HAVE_MALLINFO
#endif
#endif
#ifdef HAVE_MALLINFO
static foreign_t
pl_malinfo(term_t stats)
{ term_t tail = PL_copy_term_ref(stats);
struct mallinfo info = mallinfo();
addNameInteger(tail, "arena", (size_t)info.arena);
addNameInteger(tail, "ordblks", (size_t)info.ordblks);
addNameInteger(tail, "hblks", (size_t)info.hblks);
addNameInteger(tail, "hblkhd", (size_t)info.hblkhd);
addNameInteger(tail, "uordblks", (size_t)info.uordblks);
addNameInteger(tail, "fordblks", (size_t)info.fordblks);
addNameInteger(tail, "keepcost", (size_t)info.keepcost);
return PL_unify_nil(tail);
}
#endif /*HAVE_MALLINFO*/
#if defined(HAVE_OPEN_MEMSTREAM) && defined(HAVE_MALLOC_INFO)
static foreign_t
pl_malloc_info(term_t info)
{ char *data = NULL;
size_t len = 0;
FILE *fp;
if ( (fp=open_memstream(&data, &len)) )
{ return ( malloc_info(0, fp) == 0 &&
fclose(fp) == 0 &&
PL_unify_chars(info, PL_STRING, len, data) );
}
return pl_error("malloc_info", 1, NULL,
ERR_ERRNO, errno, "open", "memstream", 0);
}
#else
#undef HAVE_MALLOC_INFO
#endif /*defined(HAVE_OPEN_MEMSTREAM) && defined(HAVE_MALLOC_INFO)*/
install_t
install_mallocinfo(void)
{ FUNCTOR_equals2 = PL_new_functor(PL_new_atom("="), 2);
#ifdef HAVE_MALLINFO
PL_register_foreign("$mallinfo", 1, pl_malinfo, 0);
#endif
#ifdef HAVE_MALLOC_INFO
PL_register_foreign("$malloc_info", 1, pl_malloc_info, 0);
#endif
}
|
