mallocx.c revision a184d3fcdecfaaf694029fb375d023882aea444e 
1#include "test/jemalloc_test.h"
2
3#define	CHUNK 0x400000
4/* #define MAXALIGN ((size_t)UINT64_C(0x80000000000)) */
5#define	MAXALIGN ((size_t)0x2000000LU)
6#define	NITER 4
7
8TEST_BEGIN(test_basic)
9{
10	size_t nsz, rsz, sz;
11	void *p;
12
13	sz = 42;
14	nsz = nallocx(sz, 0);
15	assert_zu_ne(nsz, 0, "Unexpected nallocx() error");
16	p = mallocx(sz, 0);
17	assert_ptr_not_null(p, "Unexpected mallocx() error");
18	rsz = sallocx(p, 0);
19	assert_zu_ge(rsz, sz, "Real size smaller than expected");
20	assert_zu_eq(nsz, rsz, "nallocx()/sallocx() size mismatch");
21	dallocx(p, 0);
22
23	p = mallocx(sz, 0);
24	assert_ptr_not_null(p, "Unexpected mallocx() error");
25	dallocx(p, 0);
26
27	nsz = nallocx(sz, MALLOCX_ZERO);
28	assert_zu_ne(nsz, 0, "Unexpected nallocx() error");
29	p = mallocx(sz, MALLOCX_ZERO);
30	assert_ptr_not_null(p, "Unexpected mallocx() error");
31	rsz = sallocx(p, 0);
32	assert_zu_eq(nsz, rsz, "nallocx()/sallocx() rsize mismatch");
33	dallocx(p, 0);
34}
35TEST_END
36
37TEST_BEGIN(test_alignment_and_size)
38{
39	size_t nsz, rsz, sz, alignment, total;
40	unsigned i;
41	void *ps[NITER];
42
43	for (i = 0; i < NITER; i++)
44		ps[i] = NULL;
45
46	for (alignment = 8;
47	    alignment <= MAXALIGN;
48	    alignment <<= 1) {
49		total = 0;
50		for (sz = 1;
51		    sz < 3 * alignment && sz < (1U << 31);
52		    sz += (alignment >> (LG_SIZEOF_PTR-1)) - 1) {
53			for (i = 0; i < NITER; i++) {
54				nsz = nallocx(sz, MALLOCX_ALIGN(alignment) |
55				    MALLOCX_ZERO);
56				assert_zu_ne(nsz, 0,
57				    "nallocx() error for alignment=%zu, "
58				    "size=%zu (%#zx)", alignment, sz, sz);
59				ps[i] = mallocx(sz, MALLOCX_ALIGN(alignment) |
60				    MALLOCX_ZERO);
61				assert_ptr_not_null(ps[i],
62				    "mallocx() error for alignment=%zu, "
63				    "size=%zu (%#zx)", alignment, sz, sz);
64				rsz = sallocx(ps[i], 0);
65				assert_zu_ge(rsz, sz,
66				    "Real size smaller than expected for "
67				    "alignment=%zu, size=%zu", alignment, sz);
68				assert_zu_eq(nsz, rsz,
69				    "nallocx()/sallocx() size mismatch for "
70				    "alignment=%zu, size=%zu", alignment, sz);
71				assert_ptr_null(
72				    (void *)((uintptr_t)ps[i] & (alignment-1)),
73				    "%p inadequately aligned for"
74				    " alignment=%zu, size=%zu", ps[i],
75				    alignment, sz);
76				total += rsz;
77				if (total >= (MAXALIGN << 1))
78					break;
79			}
80			for (i = 0; i < NITER; i++) {
81				if (ps[i] != NULL) {
82					dallocx(ps[i], 0);
83					ps[i] = NULL;
84				}
85			}
86		}
87	}
88}
89TEST_END
90
91int
92main(void)
93{
94
95	return (test(
96	    test_basic,
97	    test_alignment_and_size));
98}
99