xref: /illumos-gate/usr/src/uts/common/io/stream_test.c (revision 8119dad84d6416f13557b0ba8e2aaf9064cbcfd3)
1 /*
2  * This file and its contents are supplied under the terms of the
3  * Common Development and Distribution License ("CDDL"), version 1.0.
4  * You may only use this file in accordance with the terms of version
5  * 1.0 of the CDDL.
6  *
7  * A full copy of the text of the CDDL should have accompanied this
8  * source.  A copy of the CDDL is also available via the Internet at
9  * http://www.illumos.org/license/CDDL.
10  */
11 
12 /*
13  * Copyright 2023 Oxide Computer Company
14  * Copyright 2024 Ryan Zezeski
15  */
16 #include <sys/modctl.h>
17 #include <sys/strsun.h>
18 #include <sys/ktest.h>
19 
20 /*
21  * Test the MBLKL macro.
22  */
23 void
24 mblkl_test(ktest_ctx_hdl_t *ctx)
25 {
26 	mblk_t *mp1 = allocb(64, 0);
27 
28 	KT_EASSERT3P(mp1, !=, NULL, ctx);
29 	KT_ASSERT3UG(MBLKL(mp1), ==, 0, ctx, cleanup);
30 	mp1->b_wptr += 14;
31 	KT_ASSERT3UG(MBLKL(mp1), ==, 14, ctx, cleanup);
32 	KT_PASS(ctx);
33 
34 cleanup:
35 	freeb(mp1);
36 }
37 
38 void
39 msgsize_test(ktest_ctx_hdl_t *ctx)
40 {
41 	mblk_t *mp1 = allocb(14, 0);
42 	mblk_t *mp2 = allocb(20, 0);
43 
44 	KT_EASSERT3P(mp1, !=, NULL, ctx);
45 	KT_EASSERT3PG(mp2, !=, NULL, ctx, cleanup);
46 	KT_ASSERT3UG(msgsize(mp1), ==, 0, ctx, cleanup);
47 	KT_ASSERT3UG(msgsize(mp2), ==, 0, ctx, cleanup);
48 	mp1->b_wptr += 14;
49 	mp2->b_wptr += 20;
50 	KT_ASSERT3UG(msgsize(mp1), ==, 14, ctx, cleanup);
51 	KT_ASSERT3UG(msgsize(mp2), ==, 20, ctx, cleanup);
52 	mp1->b_cont = mp2;
53 	KT_ASSERT3UG(msgsize(mp1), ==, 34, ctx, cleanup);
54 	KT_ASSERT3UG(msgsize(mp2), ==, 20, ctx, cleanup);
55 	KT_PASS(ctx);
56 
57 cleanup:
58 	freeb(mp1);
59 
60 	if (mp2 != NULL) {
61 		freeb(mp2);
62 	}
63 }
64 
65 static struct modlmisc stream_test_modlmisc = {
66 	.misc_modops = &mod_miscops,
67 	.misc_linkinfo = "stream ktest module"
68 };
69 
70 static struct modlinkage stream_test_modlinkage = {
71 	.ml_rev = MODREV_1,
72 	.ml_linkage = { &stream_test_modlmisc, NULL }
73 };
74 
75 int
76 _init()
77 {
78 	int ret;
79 	ktest_module_hdl_t *km = NULL;
80 	ktest_suite_hdl_t *ks = NULL;
81 
82 	VERIFY0(ktest_create_module("stream", &km));
83 	VERIFY0(ktest_add_suite(km, "mblk", &ks));
84 	VERIFY0(ktest_add_test(ks, "mblkl_test", mblkl_test, KTEST_FLAG_NONE));
85 	VERIFY0(ktest_add_test(ks, "msgsize_test", msgsize_test,
86 	    KTEST_FLAG_NONE));
87 
88 	if ((ret = ktest_register_module(km)) != 0) {
89 		ktest_free_module(km);
90 		return (ret);
91 	}
92 
93 	if ((ret = mod_install(&stream_test_modlinkage)) != 0) {
94 		ktest_unregister_module("stream");
95 		return (ret);
96 	}
97 
98 	return (0);
99 }
100 
101 int
102 _fini()
103 {
104 	ktest_unregister_module("stream");
105 	return (mod_remove(&stream_test_modlinkage));
106 }
107 
108 int
109 _info(struct modinfo *modinfop)
110 {
111 	return (mod_info(&stream_test_modlinkage, modinfop));
112 }
113