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Diffstat (limited to 'src/testcurl/test_quiesce_stream.c')
-rw-r--r-- | src/testcurl/test_quiesce_stream.c | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/src/testcurl/test_quiesce_stream.c b/src/testcurl/test_quiesce_stream.c new file mode 100644 index 00000000..478b1109 --- /dev/null +++ b/src/testcurl/test_quiesce_stream.c | |||
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1 | /* | ||
2 | This file is part of libmicrohttpd | ||
3 | Copyright (C) 2016 Christian Grothoff | ||
4 | |||
5 | libmicrohttpd is free software; you can redistribute it and/or modify | ||
6 | it under the terms of the GNU General Public License as published | ||
7 | by the Free Software Foundation; either version 2, or (at your | ||
8 | option) any later version. | ||
9 | |||
10 | libmicrohttpd is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU General Public License | ||
16 | along with libmicrohttpd; see the file COPYING. If not, write to the | ||
17 | Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | ||
18 | Boston, MA 02110-1301, USA. | ||
19 | */ | ||
20 | /** | ||
21 | * @file test_quiesce_stream.c | ||
22 | * @brief Testcase for libmicrohttpd quiescing | ||
23 | * @author Markus Doppelbauer | ||
24 | * @author Christian Grothoff | ||
25 | */ | ||
26 | #include <stdlib.h> | ||
27 | #include <stdio.h> | ||
28 | #include <string.h> | ||
29 | #include <errno.h> | ||
30 | #include <arpa/inet.h> | ||
31 | #include <unistd.h> | ||
32 | #include <fcntl.h> | ||
33 | #include <pthread.h> | ||
34 | #include <microhttpd.h> | ||
35 | |||
36 | |||
37 | static volatile unsigned int request_counter; | ||
38 | |||
39 | |||
40 | static void | ||
41 | http_PanicCallback (void *cls, | ||
42 | const char *file, | ||
43 | unsigned int line, | ||
44 | const char *reason) | ||
45 | { | ||
46 | fprintf( stderr, | ||
47 | "PANIC: exit process: %s at %s:%u\n", | ||
48 | reason, | ||
49 | file, | ||
50 | line); | ||
51 | exit (EXIT_FAILURE); | ||
52 | } | ||
53 | |||
54 | |||
55 | static void * | ||
56 | resume_connection (void *arg) | ||
57 | { | ||
58 | struct MHD_Connection *connection = arg; | ||
59 | |||
60 | MHD_resume_connection (connection); | ||
61 | return NULL; | ||
62 | } | ||
63 | |||
64 | |||
65 | static void | ||
66 | suspend_connection (struct MHD_Connection *connection) | ||
67 | { | ||
68 | pthread_t thread_id; | ||
69 | |||
70 | MHD_suspend_connection (connection); | ||
71 | int status = pthread_create (&thread_id, | ||
72 | NULL, | ||
73 | &resume_connection, | ||
74 | connection); | ||
75 | if (0 != status) | ||
76 | { | ||
77 | fprintf (stderr, | ||
78 | "Could not create thead\n"); | ||
79 | exit( EXIT_FAILURE ); | ||
80 | } | ||
81 | pthread_detach (thread_id); | ||
82 | } | ||
83 | |||
84 | |||
85 | struct ContentReaderUserdata | ||
86 | { | ||
87 | int bytes_written; | ||
88 | struct MHD_Connection *connection; | ||
89 | }; | ||
90 | |||
91 | |||
92 | static ssize_t | ||
93 | http_ContentReaderCallback (void *cls, | ||
94 | uint64_t pos, | ||
95 | char *buf, | ||
96 | size_t max) | ||
97 | { | ||
98 | static const char alphabet[] = "\nABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"; | ||
99 | struct ContentReaderUserdata *userdata = cls; | ||
100 | |||
101 | if( userdata->bytes_written >= 1024) | ||
102 | { | ||
103 | fprintf( stderr, | ||
104 | "finish: %d\n", | ||
105 | request_counter); | ||
106 | return MHD_CONTENT_READER_END_OF_STREAM; | ||
107 | } | ||
108 | userdata->bytes_written++; | ||
109 | buf[0] = alphabet[userdata->bytes_written % (sizeof(alphabet) - 1)]; | ||
110 | suspend_connection (userdata->connection); | ||
111 | |||
112 | return 1; | ||
113 | } | ||
114 | |||
115 | |||
116 | static int | ||
117 | http_AccessHandlerCallback (void *cls, | ||
118 | struct MHD_Connection *connection, | ||
119 | const char *url, | ||
120 | const char *method, | ||
121 | const char *version, | ||
122 | const char *upload_data, | ||
123 | size_t *upload_data_size, | ||
124 | void **con_cls ) | ||
125 | { | ||
126 | int ret; | ||
127 | |||
128 | /* Never respond on first call */ | ||
129 | if (NULL == *con_cls) | ||
130 | { | ||
131 | fprintf (stderr, | ||
132 | "start: %d\n", | ||
133 | ++request_counter); | ||
134 | |||
135 | struct ContentReaderUserdata *userdata = malloc (sizeof(struct ContentReaderUserdata)); | ||
136 | |||
137 | if (NULL == userdata) | ||
138 | return MHD_NO; | ||
139 | userdata->bytes_written = 0; | ||
140 | userdata->connection = connection; | ||
141 | *con_cls = userdata; | ||
142 | return MHD_YES; | ||
143 | } | ||
144 | |||
145 | /* Second call: create response */ | ||
146 | struct MHD_Response *response | ||
147 | = MHD_create_response_from_callback (-1, | ||
148 | 32 * 1024, | ||
149 | &http_ContentReaderCallback, | ||
150 | *con_cls, | ||
151 | NULL); | ||
152 | ret = MHD_queue_response (connection, | ||
153 | MHD_HTTP_OK, | ||
154 | response); | ||
155 | MHD_destroy_response (response); | ||
156 | |||
157 | suspend_connection (connection); | ||
158 | return ret; | ||
159 | } | ||
160 | |||
161 | |||
162 | int | ||
163 | main() | ||
164 | { | ||
165 | // Panic callback | ||
166 | MHD_set_panic_func (&http_PanicCallback, | ||
167 | NULL); | ||
168 | |||
169 | // Flags | ||
170 | unsigned int daemon_flags | ||
171 | = MHD_USE_SELECT_INTERNALLY | ||
172 | | MHD_USE_EPOLL | ||
173 | | MHD_USE_SUSPEND_RESUME | ||
174 | | MHD_USE_PIPE_FOR_SHUTDOWN; | ||
175 | |||
176 | // Create daemon | ||
177 | struct MHD_Daemon *daemon = MHD_start_daemon (daemon_flags, | ||
178 | 8000, | ||
179 | NULL, | ||
180 | NULL, | ||
181 | &http_AccessHandlerCallback, | ||
182 | NULL, | ||
183 | MHD_OPTION_END); | ||
184 | if (NULL == daemon) | ||
185 | return EXIT_FAILURE; | ||
186 | if (0 != system ("wget --server-response -q -O - 127.0.0.1:8000")) | ||
187 | { | ||
188 | MHD_stop_daemon (daemon); | ||
189 | return EXIT_SUCCESS; | ||
190 | } | ||
191 | // wait for a request | ||
192 | while (0 == request_counter) | ||
193 | sleep (1); | ||
194 | |||
195 | fprintf (stderr, | ||
196 | "quiesce\n"); | ||
197 | MHD_quiesce_daemon (daemon); | ||
198 | |||
199 | /* wait a second */ | ||
200 | sleep (1); | ||
201 | |||
202 | fprintf (stderr, | ||
203 | "stopping daemon\n"); | ||
204 | MHD_stop_daemon (daemon); | ||
205 | |||
206 | return EXIT_SUCCESS; | ||
207 | } | ||