Commit | Line | Data |
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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 | 10 | #include <tap/tap.h> |
fe489250 | 11 | #include <sys/eventfd.h> |
c0a66c84 JG |
12 | |
13 | static const int TEST_COUNT = 5; | |
14 | ||
15 | /* For error.h */ | |
16 | int lttng_opt_quiet = 1; | |
17 | int lttng_opt_verbose; | |
18 | int lttng_opt_mi; | |
19 | ||
20 | static void test_fd_push_pop_order(void) | |
21 | { | |
22 | int ret, i; | |
23 | struct lttng_payload payload; | |
fe489250 | 24 | int fds[3]; |
c0a66c84 JG |
25 | |
26 | lttng_payload_init(&payload); | |
27 | ||
28 | diag("Validating fd push/pop order"); | |
29 | for (i = 0; i < 3; i++) { | |
fe489250 JG |
30 | int fd = eventfd(0, 0); |
31 | struct fd_handle *handle; | |
32 | ||
33 | assert(fd >= 0); | |
34 | fds[i] = fd; | |
35 | ||
36 | handle = fd_handle_create(fd); | |
37 | assert(handle); | |
38 | ||
39 | ret = lttng_payload_push_fd_handle(&payload, handle); | |
40 | fd_handle_put(handle); | |
c0a66c84 JG |
41 | if (ret) { |
42 | break; | |
43 | } | |
44 | } | |
fe489250 | 45 | |
c0a66c84 JG |
46 | ok(ret == 0, "Added three file descriptors to an lttng_payload"); |
47 | ||
48 | { | |
49 | bool fail_pop = false; | |
50 | struct lttng_payload_view view = | |
51 | lttng_payload_view_from_payload( | |
52 | &payload, 0, -1); | |
53 | ||
54 | for (i = 0; i < 3; i++) { | |
fe489250 JG |
55 | struct fd_handle *handle = |
56 | lttng_payload_view_pop_fd_handle(&view); | |
57 | ||
58 | fail_pop |= fd_handle_get_fd(handle) != fds[i]; | |
59 | fd_handle_put(handle); | |
c0a66c84 JG |
60 | } |
61 | ||
62 | ok(!fail_pop, "File descriptors are popped from a payload view in the order of insertion"); | |
63 | } | |
64 | ||
65 | lttng_payload_reset(&payload); | |
66 | } | |
67 | ||
68 | static void test_fd_push_pop_imbalance(void) | |
69 | { | |
70 | int ret, i; | |
71 | struct lttng_payload payload; | |
72 | const char * const test_description = "Error reported when popping more file descriptors than were pushed"; | |
73 | ||
74 | lttng_payload_init(&payload); | |
75 | ||
76 | diag("Validating fd pop imbalance"); | |
77 | for (i = 0; i < 10; i++) { | |
fe489250 JG |
78 | struct fd_handle *handle; |
79 | int fd = eventfd(0, 0); | |
80 | ||
81 | assert(fd >= 0); | |
82 | ||
83 | handle = fd_handle_create(fd); | |
84 | assert(handle); | |
85 | ||
86 | ret = lttng_payload_push_fd_handle(&payload, handle); | |
87 | fd_handle_put(handle); | |
c0a66c84 JG |
88 | if (ret) { |
89 | break; | |
90 | } | |
91 | } | |
92 | ||
93 | { | |
fe489250 | 94 | struct fd_handle *handle; |
c0a66c84 JG |
95 | struct lttng_payload_view view = |
96 | lttng_payload_view_from_payload( | |
97 | &payload, 0, -1); | |
98 | ||
99 | for (i = 0; i < 10; i++) { | |
fe489250 JG |
100 | handle = lttng_payload_view_pop_fd_handle(&view); |
101 | fd_handle_put(handle); | |
102 | if (!handle) { | |
c0a66c84 JG |
103 | goto fail; |
104 | } | |
105 | } | |
106 | ||
fe489250 JG |
107 | handle = lttng_payload_view_pop_fd_handle(&view); |
108 | ok(!handle, test_description); | |
109 | fd_handle_put(handle); | |
c0a66c84 JG |
110 | } |
111 | ||
112 | lttng_payload_reset(&payload); | |
113 | return; | |
114 | fail: | |
115 | fail(test_description); | |
116 | lttng_payload_reset(&payload); | |
117 | } | |
118 | ||
119 | static void test_fd_pop_fd_root_views(void) | |
120 | { | |
121 | int ret, i; | |
fe489250 JG |
122 | const int fd = eventfd(0, 0); |
123 | struct fd_handle *handle = fd_handle_create(fd); | |
c0a66c84 JG |
124 | struct lttng_payload payload; |
125 | const char * const test_description = "Same file descriptor returned when popping from different top-level views"; | |
126 | ||
127 | lttng_payload_init(&payload); | |
fe489250 | 128 | assert(handle); |
c0a66c84 JG |
129 | |
130 | diag("Validating root view fd pop behaviour"); | |
fe489250 | 131 | ret = lttng_payload_push_fd_handle(&payload, handle); |
c0a66c84 JG |
132 | if (ret) { |
133 | goto fail; | |
134 | } | |
135 | ||
136 | for (i = 0; i < 5; i++) { | |
fe489250 JG |
137 | int view_fd; |
138 | struct fd_handle *view_handle; | |
c0a66c84 JG |
139 | struct lttng_payload_view view = |
140 | lttng_payload_view_from_payload( | |
141 | &payload, 0, -1); | |
142 | ||
fe489250 JG |
143 | view_handle = lttng_payload_view_pop_fd_handle(&view); |
144 | if (!view_handle) { | |
145 | goto fail; | |
146 | } | |
147 | ||
148 | view_fd = fd_handle_get_fd(view_handle); | |
149 | fd_handle_put(view_handle); | |
150 | if (view_fd != fd || view_handle != handle) { | |
c0a66c84 JG |
151 | goto fail; |
152 | } | |
153 | } | |
154 | ||
155 | lttng_payload_reset(&payload); | |
156 | pass(test_description); | |
fe489250 | 157 | fd_handle_put(handle); |
c0a66c84 JG |
158 | return; |
159 | fail: | |
160 | lttng_payload_reset(&payload); | |
161 | fail(test_description); | |
fe489250 | 162 | fd_handle_put(handle); |
c0a66c84 JG |
163 | } |
164 | ||
165 | static void test_fd_pop_fd_descendant_views(void) | |
166 | { | |
167 | int ret; | |
168 | const int fd1 = 42, fd2 = 1837; | |
fe489250 JG |
169 | struct fd_handle *handle1 = fd_handle_create(fd1); |
170 | struct fd_handle *handle2 = fd_handle_create(fd2); | |
171 | struct fd_handle *view_handle1 = NULL, *view_handle2 = NULL; | |
c0a66c84 JG |
172 | struct lttng_payload payload; |
173 | const char * const test_description = "Different file descriptors returned when popping from descendant views"; | |
174 | ||
175 | lttng_payload_init(&payload); | |
fe489250 JG |
176 | assert(handle1); |
177 | assert(handle2); | |
c0a66c84 JG |
178 | |
179 | diag("Validating descendant view fd pop behaviour"); | |
fe489250 | 180 | ret = lttng_payload_push_fd_handle(&payload, handle1); |
c0a66c84 JG |
181 | if (ret) { |
182 | goto fail; | |
183 | } | |
184 | ||
fe489250 | 185 | ret = lttng_payload_push_fd_handle(&payload, handle2); |
c0a66c84 JG |
186 | if (ret) { |
187 | goto fail; | |
188 | } | |
189 | ||
190 | { | |
191 | struct lttng_payload_view view1 = | |
192 | lttng_payload_view_from_payload( | |
193 | &payload, 0, -1); | |
194 | struct lttng_payload_view view2 = | |
195 | lttng_payload_view_from_view( | |
196 | &view1, 0, -1); | |
197 | ||
fe489250 JG |
198 | view_handle1 = lttng_payload_view_pop_fd_handle(&view1); |
199 | if (!view_handle1 || fd_handle_get_fd(view_handle1) != fd1) { | |
c0a66c84 JG |
200 | goto fail; |
201 | } | |
202 | ||
fe489250 JG |
203 | view_handle2 = lttng_payload_view_pop_fd_handle(&view2); |
204 | if (!view_handle2 || fd_handle_get_fd(view_handle2) != fd2) { | |
c0a66c84 JG |
205 | goto fail; |
206 | } | |
207 | } | |
208 | ||
209 | lttng_payload_reset(&payload); | |
210 | pass(test_description); | |
fe489250 JG |
211 | fd_handle_put(handle1); |
212 | fd_handle_put(handle2); | |
213 | fd_handle_put(view_handle1); | |
214 | fd_handle_put(view_handle2); | |
c0a66c84 JG |
215 | return; |
216 | fail: | |
217 | lttng_payload_reset(&payload); | |
218 | fail(test_description); | |
fe489250 JG |
219 | fd_handle_put(handle1); |
220 | fd_handle_put(handle2); | |
221 | fd_handle_put(view_handle1); | |
222 | fd_handle_put(view_handle2); | |
c0a66c84 JG |
223 | } |
224 | ||
225 | int main(void) | |
226 | { | |
227 | plan_tests(TEST_COUNT); | |
228 | ||
229 | test_fd_push_pop_order(); | |
230 | test_fd_push_pop_imbalance(); | |
231 | test_fd_pop_fd_root_views(); | |
232 | test_fd_pop_fd_descendant_views(); | |
233 | ||
234 | return exit_status(); | |
235 | } |