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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 | ||
7b0027b3 MJ |
8 | #include <unistd.h> |
9 | ||
10 | #include <common/compat/fcntl.h> | |
9e620ea7 JG |
11 | #include <common/payload.h> |
12 | #include <common/payload-view.h> | |
c0a66c84 JG |
13 | #include <tap/tap.h> |
14 | ||
15 | static const int TEST_COUNT = 5; | |
16 | ||
17 | /* For error.h */ | |
18 | int lttng_opt_quiet = 1; | |
19 | int lttng_opt_verbose; | |
20 | int lttng_opt_mi; | |
21 | ||
22 | static void test_fd_push_pop_order(void) | |
23 | { | |
24 | int ret, i; | |
25 | struct lttng_payload payload; | |
fe489250 | 26 | int fds[3]; |
c0a66c84 JG |
27 | |
28 | lttng_payload_init(&payload); | |
29 | ||
30 | diag("Validating fd push/pop order"); | |
31 | for (i = 0; i < 3; i++) { | |
7b0027b3 | 32 | int fd = fcntl(STDOUT_FILENO, F_DUPFD, 0); |
fe489250 JG |
33 | struct fd_handle *handle; |
34 | ||
35 | assert(fd >= 0); | |
36 | fds[i] = fd; | |
37 | ||
38 | handle = fd_handle_create(fd); | |
39 | assert(handle); | |
40 | ||
41 | ret = lttng_payload_push_fd_handle(&payload, handle); | |
42 | fd_handle_put(handle); | |
c0a66c84 JG |
43 | if (ret) { |
44 | break; | |
45 | } | |
46 | } | |
fe489250 | 47 | |
c0a66c84 JG |
48 | ok(ret == 0, "Added three file descriptors to an lttng_payload"); |
49 | ||
50 | { | |
51 | bool fail_pop = false; | |
52 | struct lttng_payload_view view = | |
53 | lttng_payload_view_from_payload( | |
54 | &payload, 0, -1); | |
55 | ||
56 | for (i = 0; i < 3; i++) { | |
fe489250 JG |
57 | struct fd_handle *handle = |
58 | lttng_payload_view_pop_fd_handle(&view); | |
59 | ||
60 | fail_pop |= fd_handle_get_fd(handle) != fds[i]; | |
61 | fd_handle_put(handle); | |
c0a66c84 JG |
62 | } |
63 | ||
64 | ok(!fail_pop, "File descriptors are popped from a payload view in the order of insertion"); | |
65 | } | |
66 | ||
67 | lttng_payload_reset(&payload); | |
68 | } | |
69 | ||
70 | static void test_fd_push_pop_imbalance(void) | |
71 | { | |
72 | int ret, i; | |
73 | struct lttng_payload payload; | |
74 | const char * const test_description = "Error reported when popping more file descriptors than were pushed"; | |
75 | ||
76 | lttng_payload_init(&payload); | |
77 | ||
78 | diag("Validating fd pop imbalance"); | |
79 | for (i = 0; i < 10; i++) { | |
fe489250 | 80 | struct fd_handle *handle; |
7b0027b3 | 81 | int fd = fcntl(STDOUT_FILENO, F_DUPFD, 0); |
fe489250 JG |
82 | |
83 | assert(fd >= 0); | |
84 | ||
85 | handle = fd_handle_create(fd); | |
86 | assert(handle); | |
87 | ||
88 | ret = lttng_payload_push_fd_handle(&payload, handle); | |
89 | fd_handle_put(handle); | |
c0a66c84 JG |
90 | if (ret) { |
91 | break; | |
92 | } | |
93 | } | |
94 | ||
95 | { | |
fe489250 | 96 | struct fd_handle *handle; |
c0a66c84 JG |
97 | struct lttng_payload_view view = |
98 | lttng_payload_view_from_payload( | |
99 | &payload, 0, -1); | |
100 | ||
101 | for (i = 0; i < 10; i++) { | |
fe489250 JG |
102 | handle = lttng_payload_view_pop_fd_handle(&view); |
103 | fd_handle_put(handle); | |
104 | if (!handle) { | |
c0a66c84 JG |
105 | goto fail; |
106 | } | |
107 | } | |
108 | ||
fe489250 JG |
109 | handle = lttng_payload_view_pop_fd_handle(&view); |
110 | ok(!handle, test_description); | |
111 | fd_handle_put(handle); | |
c0a66c84 JG |
112 | } |
113 | ||
114 | lttng_payload_reset(&payload); | |
115 | return; | |
116 | fail: | |
117 | fail(test_description); | |
118 | lttng_payload_reset(&payload); | |
119 | } | |
120 | ||
121 | static void test_fd_pop_fd_root_views(void) | |
122 | { | |
123 | int ret, i; | |
7b0027b3 MJ |
124 | int fd = fcntl(STDOUT_FILENO, F_DUPFD, 0); |
125 | struct fd_handle *handle; | |
c0a66c84 JG |
126 | struct lttng_payload payload; |
127 | const char * const test_description = "Same file descriptor returned when popping from different top-level views"; | |
128 | ||
7b0027b3 MJ |
129 | assert(fd >= 0); |
130 | handle = fd_handle_create(fd); | |
fe489250 | 131 | assert(handle); |
c0a66c84 | 132 | |
7b0027b3 MJ |
133 | lttng_payload_init(&payload); |
134 | ||
c0a66c84 | 135 | diag("Validating root view fd pop behaviour"); |
fe489250 | 136 | ret = lttng_payload_push_fd_handle(&payload, handle); |
c0a66c84 JG |
137 | if (ret) { |
138 | goto fail; | |
139 | } | |
140 | ||
141 | for (i = 0; i < 5; i++) { | |
fe489250 JG |
142 | int view_fd; |
143 | struct fd_handle *view_handle; | |
c0a66c84 JG |
144 | struct lttng_payload_view view = |
145 | lttng_payload_view_from_payload( | |
146 | &payload, 0, -1); | |
147 | ||
fe489250 JG |
148 | view_handle = lttng_payload_view_pop_fd_handle(&view); |
149 | if (!view_handle) { | |
150 | goto fail; | |
151 | } | |
152 | ||
153 | view_fd = fd_handle_get_fd(view_handle); | |
154 | fd_handle_put(view_handle); | |
155 | if (view_fd != fd || view_handle != handle) { | |
c0a66c84 JG |
156 | goto fail; |
157 | } | |
158 | } | |
159 | ||
160 | lttng_payload_reset(&payload); | |
161 | pass(test_description); | |
fe489250 | 162 | fd_handle_put(handle); |
c0a66c84 JG |
163 | return; |
164 | fail: | |
165 | lttng_payload_reset(&payload); | |
166 | fail(test_description); | |
fe489250 | 167 | fd_handle_put(handle); |
c0a66c84 JG |
168 | } |
169 | ||
170 | static void test_fd_pop_fd_descendant_views(void) | |
171 | { | |
172 | int ret; | |
173 | const int fd1 = 42, fd2 = 1837; | |
fe489250 JG |
174 | struct fd_handle *handle1 = fd_handle_create(fd1); |
175 | struct fd_handle *handle2 = fd_handle_create(fd2); | |
176 | struct fd_handle *view_handle1 = NULL, *view_handle2 = NULL; | |
c0a66c84 JG |
177 | struct lttng_payload payload; |
178 | const char * const test_description = "Different file descriptors returned when popping from descendant views"; | |
179 | ||
180 | lttng_payload_init(&payload); | |
fe489250 JG |
181 | assert(handle1); |
182 | assert(handle2); | |
c0a66c84 JG |
183 | |
184 | diag("Validating descendant view fd pop behaviour"); | |
fe489250 | 185 | ret = lttng_payload_push_fd_handle(&payload, handle1); |
c0a66c84 JG |
186 | if (ret) { |
187 | goto fail; | |
188 | } | |
189 | ||
fe489250 | 190 | ret = lttng_payload_push_fd_handle(&payload, handle2); |
c0a66c84 JG |
191 | if (ret) { |
192 | goto fail; | |
193 | } | |
194 | ||
195 | { | |
196 | struct lttng_payload_view view1 = | |
197 | lttng_payload_view_from_payload( | |
198 | &payload, 0, -1); | |
199 | struct lttng_payload_view view2 = | |
200 | lttng_payload_view_from_view( | |
201 | &view1, 0, -1); | |
202 | ||
fe489250 JG |
203 | view_handle1 = lttng_payload_view_pop_fd_handle(&view1); |
204 | if (!view_handle1 || fd_handle_get_fd(view_handle1) != fd1) { | |
c0a66c84 JG |
205 | goto fail; |
206 | } | |
207 | ||
fe489250 JG |
208 | view_handle2 = lttng_payload_view_pop_fd_handle(&view2); |
209 | if (!view_handle2 || fd_handle_get_fd(view_handle2) != fd2) { | |
c0a66c84 JG |
210 | goto fail; |
211 | } | |
212 | } | |
213 | ||
214 | lttng_payload_reset(&payload); | |
215 | pass(test_description); | |
fe489250 JG |
216 | fd_handle_put(handle1); |
217 | fd_handle_put(handle2); | |
218 | fd_handle_put(view_handle1); | |
219 | fd_handle_put(view_handle2); | |
c0a66c84 JG |
220 | return; |
221 | fail: | |
222 | lttng_payload_reset(&payload); | |
223 | fail(test_description); | |
fe489250 JG |
224 | fd_handle_put(handle1); |
225 | fd_handle_put(handle2); | |
226 | fd_handle_put(view_handle1); | |
227 | fd_handle_put(view_handle2); | |
c0a66c84 JG |
228 | } |
229 | ||
230 | int main(void) | |
231 | { | |
232 | plan_tests(TEST_COUNT); | |
233 | ||
234 | test_fd_push_pop_order(); | |
235 | test_fd_push_pop_imbalance(); | |
236 | test_fd_pop_fd_root_views(); | |
237 | test_fd_pop_fd_descendant_views(); | |
238 | ||
239 | return exit_status(); | |
240 | } |