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c0a66c84 JG |
1 | /* |
2 | * Copyright (C) 2020 Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
3 | * | |
4 | * SPDX-License-Identifier: LGPL-2.1-only | |
5 | * | |
6 | */ | |
7 | ||
9e620ea7 JG |
8 | #include <common/payload.h> |
9 | #include <common/payload-view.h> | |
c0a66c84 JG |
10 | #include <tap/tap.h> |
11 | ||
12 | static const int TEST_COUNT = 5; | |
13 | ||
14 | /* For error.h */ | |
15 | int lttng_opt_quiet = 1; | |
16 | int lttng_opt_verbose; | |
17 | int lttng_opt_mi; | |
18 | ||
19 | static void test_fd_push_pop_order(void) | |
20 | { | |
21 | int ret, i; | |
22 | struct lttng_payload payload; | |
23 | ||
24 | lttng_payload_init(&payload); | |
25 | ||
26 | diag("Validating fd push/pop order"); | |
27 | for (i = 0; i < 3; i++) { | |
28 | ret = lttng_payload_push_fd(&payload, i); | |
29 | if (ret) { | |
30 | break; | |
31 | } | |
32 | } | |
33 | ok(ret == 0, "Added three file descriptors to an lttng_payload"); | |
34 | ||
35 | { | |
36 | bool fail_pop = false; | |
37 | struct lttng_payload_view view = | |
38 | lttng_payload_view_from_payload( | |
39 | &payload, 0, -1); | |
40 | ||
41 | for (i = 0; i < 3; i++) { | |
42 | ret = lttng_payload_view_pop_fd(&view); | |
43 | fail_pop |= ret != i; | |
44 | } | |
45 | ||
46 | ok(!fail_pop, "File descriptors are popped from a payload view in the order of insertion"); | |
47 | } | |
48 | ||
49 | lttng_payload_reset(&payload); | |
50 | } | |
51 | ||
52 | static void test_fd_push_pop_imbalance(void) | |
53 | { | |
54 | int ret, i; | |
55 | struct lttng_payload payload; | |
56 | const char * const test_description = "Error reported when popping more file descriptors than were pushed"; | |
57 | ||
58 | lttng_payload_init(&payload); | |
59 | ||
60 | diag("Validating fd pop imbalance"); | |
61 | for (i = 0; i < 10; i++) { | |
62 | ret = lttng_payload_push_fd(&payload, i); | |
63 | if (ret) { | |
64 | break; | |
65 | } | |
66 | } | |
67 | ||
68 | { | |
69 | struct lttng_payload_view view = | |
70 | lttng_payload_view_from_payload( | |
71 | &payload, 0, -1); | |
72 | ||
73 | for (i = 0; i < 10; i++) { | |
74 | ret = lttng_payload_view_pop_fd(&view); | |
75 | if (ret == -1) { | |
76 | goto fail; | |
77 | } | |
78 | } | |
79 | ||
80 | ret = lttng_payload_view_pop_fd(&view); | |
81 | ok(ret == -1, test_description); | |
82 | } | |
83 | ||
84 | lttng_payload_reset(&payload); | |
85 | return; | |
86 | fail: | |
87 | fail(test_description); | |
88 | lttng_payload_reset(&payload); | |
89 | } | |
90 | ||
91 | static void test_fd_pop_fd_root_views(void) | |
92 | { | |
93 | int ret, i; | |
94 | const int fd = 42; | |
95 | struct lttng_payload payload; | |
96 | const char * const test_description = "Same file descriptor returned when popping from different top-level views"; | |
97 | ||
98 | lttng_payload_init(&payload); | |
99 | ||
100 | diag("Validating root view fd pop behaviour"); | |
101 | ret = lttng_payload_push_fd(&payload, fd); | |
102 | if (ret) { | |
103 | goto fail; | |
104 | } | |
105 | ||
106 | for (i = 0; i < 5; i++) { | |
107 | struct lttng_payload_view view = | |
108 | lttng_payload_view_from_payload( | |
109 | &payload, 0, -1); | |
110 | ||
111 | ret = lttng_payload_view_pop_fd(&view); | |
112 | if (ret != fd) { | |
113 | goto fail; | |
114 | } | |
115 | } | |
116 | ||
117 | lttng_payload_reset(&payload); | |
118 | pass(test_description); | |
119 | return; | |
120 | fail: | |
121 | lttng_payload_reset(&payload); | |
122 | fail(test_description); | |
123 | } | |
124 | ||
125 | static void test_fd_pop_fd_descendant_views(void) | |
126 | { | |
127 | int ret; | |
128 | const int fd1 = 42, fd2 = 1837; | |
129 | struct lttng_payload payload; | |
130 | const char * const test_description = "Different file descriptors returned when popping from descendant views"; | |
131 | ||
132 | lttng_payload_init(&payload); | |
133 | ||
134 | diag("Validating descendant view fd pop behaviour"); | |
135 | ret = lttng_payload_push_fd(&payload, fd1); | |
136 | if (ret) { | |
137 | goto fail; | |
138 | } | |
139 | ||
140 | ret = lttng_payload_push_fd(&payload, fd2); | |
141 | if (ret) { | |
142 | goto fail; | |
143 | } | |
144 | ||
145 | { | |
146 | struct lttng_payload_view view1 = | |
147 | lttng_payload_view_from_payload( | |
148 | &payload, 0, -1); | |
149 | struct lttng_payload_view view2 = | |
150 | lttng_payload_view_from_view( | |
151 | &view1, 0, -1); | |
152 | ||
153 | ret = lttng_payload_view_pop_fd(&view1); | |
154 | if (ret != fd1) { | |
155 | goto fail; | |
156 | } | |
157 | ||
158 | ret = lttng_payload_view_pop_fd(&view2); | |
159 | if (ret != fd2) { | |
160 | goto fail; | |
161 | } | |
162 | } | |
163 | ||
164 | lttng_payload_reset(&payload); | |
165 | pass(test_description); | |
166 | return; | |
167 | fail: | |
168 | lttng_payload_reset(&payload); | |
169 | fail(test_description); | |
170 | } | |
171 | ||
172 | int main(void) | |
173 | { | |
174 | plan_tests(TEST_COUNT); | |
175 | ||
176 | test_fd_push_pop_order(); | |
177 | test_fd_push_pop_imbalance(); | |
178 | test_fd_pop_fd_root_views(); | |
179 | test_fd_pop_fd_descendant_views(); | |
180 | ||
181 | return exit_status(); | |
182 | } |