blob: 5b565b159201b60aa9ecf210f0fb0f12d9430bc9 (
plain)
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
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup intern_mem
*/
#include <cstdio> /* Needed for `printf` on WIN32/APPLE. */
#include <cstdlib>
#include "MEM_guardedalloc.h"
#include "mallocn_intern.h"
bool leak_detector_has_run = false;
char free_after_leak_detection_message[] =
"Freeing memory after the leak detector has run. This can happen when using "
"static variables in C++ that are defined outside of functions. To fix this "
"error, use the 'construct on first use' idiom.";
namespace {
bool fail_on_memleak = false;
bool ignore_memleak = false;
class MemLeakPrinter {
public:
~MemLeakPrinter()
{
if (ignore_memleak) {
return;
}
leak_detector_has_run = true;
const uint leaked_blocks = MEM_get_memory_blocks_in_use();
if (leaked_blocks == 0) {
return;
}
const size_t mem_in_use = MEM_get_memory_in_use();
printf("Error: Not freed memory blocks: %u, total unfreed memory %f MB\n",
leaked_blocks,
double(mem_in_use) / 1024 / 1024);
MEM_printmemlist();
if (fail_on_memleak) {
/* There are many other ways to change the exit code to failure here:
* - Make the destructor `noexcept(false)` and throw an exception.
* - Call exit(EXIT_FAILURE).
* - Call terminate().
*/
abort();
}
}
};
} // namespace
void MEM_init_memleak_detection()
{
/**
* This variable is constructed when this function is first called. This should happen as soon as
* possible when the program starts.
*
* It is destructed when the program exits. During destruction, it will print information about
* leaked memory blocks. Static variables are destructed in reversed order of their
* construction. Therefore, all static variables that own memory have to be constructed after
* this function has been called.
*/
static MemLeakPrinter printer;
}
void MEM_use_memleak_detection(bool enabled)
{
ignore_memleak = !enabled;
}
void MEM_enable_fail_on_memleak()
{
fail_on_memleak = true;
}
|
