blob: ca42b1353bfcb6443a0d074030df1f948174ff65 (
plain) (
blame)
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
|
#define JEMALLOC_EXTENT_MMAP_C_
#include "jemalloc/internal/jemalloc_preamble.h"
#include "jemalloc/internal/jemalloc_internal_includes.h"
#include "jemalloc/internal/assert.h"
#include "jemalloc/internal/extent_mmap.h"
/******************************************************************************/
/* Data. */
bool opt_retain =
#ifdef JEMALLOC_RETAIN
true
#else
false
#endif
;
/******************************************************************************/
void *
extent_alloc_mmap(void *new_addr, size_t size, size_t alignment, bool *zero,
bool *commit) {
assert(alignment == ALIGNMENT_CEILING(alignment, PAGE));
void *ret = pages_map(new_addr, size, alignment, commit);
if (ret == NULL) {
return NULL;
}
assert(ret != NULL);
if (*commit) {
*zero = true;
}
return ret;
}
bool
extent_dalloc_mmap(void *addr, size_t size) {
if (!opt_retain) {
pages_unmap(addr, size);
}
return opt_retain;
}
|
