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
|
#include <stdio.h>
#include <stdlib.h>
#include <caml/alloc.h>
#include <caml/memory.h>
#define CAML_INTERNALS
#include <caml/gc_ctrl.h>
void print_status(const char *str, int n)
{
printf("%s: %d\n", str, n);
fflush(stdout);
}
value print_status_caml(value str, value n)
{
print_status(String_val(str), Int_val(n));
return Val_unit;
}
const char* strs[] = { "foo", "bar", 0 };
value stub(value ref)
{
CAMLparam1(ref);
CAMLlocal2(x, y);
char* s; intnat coll_before;
print_status("C, before", Int_val(Field(ref, 0)));
/* First, do enough major allocations to do a full major collection cycle */
coll_before = caml_stat_major_collections;
while (caml_stat_major_collections <= coll_before+1) {
caml_alloc(10000, 0);
}
/* Now, call lots of allocation functions */
/* Small allocations */
caml_alloc(10, 0);
x = caml_alloc_small(2, 0);
Field(x, 0) = Val_unit;
Field(x, 1) = Val_unit;
caml_alloc_tuple(3);
caml_alloc_float_array(10);
caml_alloc_string(42);
caml_alloc_initialized_string(10, "abcdeabcde");
caml_copy_string("asoidjfa");
caml_copy_string_array(strs);
caml_copy_double(42.0);
caml_copy_int32(100);
caml_copy_int64(100);
caml_alloc_array(caml_copy_string, strs);
caml_alloc_sprintf("[%d]", 42);
/* Large allocations */
caml_alloc(1000, 0);
caml_alloc_shr(1000, String_tag);
caml_alloc_tuple(1000);
caml_alloc_float_array(1000);
caml_alloc_string(10000);
s = calloc(10000, 1);
caml_alloc_initialized_string(10000, s);
free(s);
print_status("C, after", Int_val(Field(ref, 0)));
CAMLreturn (Val_unit);
}
|
