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
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
/*
* Copyright 2009 Red Hat, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdarg.h>
#include "qxl.h"
#include "mspace.h"
#ifdef DEBUG_QXL_MEM
#include <valgrind/memcheck.h>
#endif
struct qxl_mem
{
mspace space;
void * base;
unsigned long n_bytes;
#ifdef DEBUG_QXL_MEM
size_t used_initial;
int unverifiable;
int missing;
#endif
};
#ifdef DEBUG_QXL_MEM
void
qxl_mem_unverifiable(struct qxl_mem *mem)
{
mem->unverifiable = 1;
}
#endif
static void
errout (void *data, const char *format, ...)
{
va_list va;
va_start (va, format);
VErrorF (format, va);
va_end (va);
}
struct qxl_mem *
qxl_mem_create (void *base,
unsigned long n_bytes)
{
struct qxl_mem *mem;
mem = calloc (sizeof (*mem), 1);
if (!mem)
goto out;
ErrorF ("memory space from %p to %p\n", base, (char *)base + n_bytes);
mspace_set_print_func (errout);
mem->space = create_mspace_with_base (base, n_bytes, 0, NULL);
mem->base = base;
mem->n_bytes = n_bytes;
#ifdef DEBUG_QXL_MEM
{
size_t used;
mspace_malloc_stats_return(mem->space, NULL, NULL, &used);
mem->used_initial = used;
mem->unverifiable = 0;
mem->missing = 0;
}
#endif
out:
return mem;
}
void
qxl_mem_dump_stats (struct qxl_mem *mem,
const char *header)
{
ErrorF ("%s\n", header);
mspace_malloc_stats (mem->space);
}
void *
qxl_alloc (struct qxl_mem *mem,
unsigned long n_bytes,
const char *name)
{
void *addr = mspace_malloc (mem->space, n_bytes);
#ifdef DEBUG_QXL_MEM
VALGRIND_MALLOCLIKE_BLOCK(addr, n_bytes, 0, 0);
#ifdef DEBUG_QXL_MEM_VERBOSE
fprintf(stderr, "alloc %p: %ld (%s)\n", addr, n_bytes, name);
#endif
#endif
return addr;
}
void
qxl_free (struct qxl_mem *mem,
void *d,
const char * name)
{
#if 0
ErrorF ("%p <= free %s\n", d, name);
#endif
mspace_free (mem->space, d);
#ifdef DEBUG_QXL_MEM
#ifdef DEBUG_QXL_MEM_VERBOSE
fprintf(stderr, "free %p %s\n", d, name);
#endif
VALGRIND_FREELIKE_BLOCK(d, 0);
#endif
}
void
qxl_mem_free_all (struct qxl_mem *mem)
{
#ifdef DEBUG_QXL_MEM
size_t maxfp, fp, used;
if (mem->space)
{
mspace_malloc_stats_return(mem->space, &maxfp, &fp, &used);
mem->missing = used - mem->used_initial;
ErrorF ("untracked %zd bytes (%s)", used - mem->used_initial,
mem->unverifiable ? "marked unverifiable" : "oops");
}
#endif
mem->space = create_mspace_with_base (mem->base, mem->n_bytes, 0, NULL);
}
|
