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f7149e90c2
https://libwebsockets.org/pipermail/libwebsockets/2019-April/007937.html thanks to Bruce Perens for noting it. This doesn't change the intention or status of the CC0 files, they were pure CC0 before (ie, public domain) and they are pure CC0 now. It just gets rid of the (C) part at the top of the dedication which may be read to be a bit contradictory since the purpose is to make it public domain.
132 lines
3.7 KiB
C
132 lines
3.7 KiB
C
/*
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* lws-minimal-http-server-smp
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*
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* Written in 2010-2019 by Andy Green <andy@warmcat.com>
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*
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* This file is made available under the Creative Commons CC0 1.0
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* Universal Public Domain Dedication.
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*
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* This demonstrates a minimal multithreaded http server you can make with lws.
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*
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* To keep it simple, it serves stuff in the subdirectory "./mount-origin" of
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* the directory it was started in.
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* You can change that by changing mount.origin.
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*
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* Also for simplicity the number of threads is set in the code... note that
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* the real number of threads possible is decided by the LWS_MAX_SMP that lws
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* was configured with, by default that is 1. Lws will limit the number of
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* requested threads to the number possible.
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*/
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#include <libwebsockets.h>
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#include <string.h>
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#include <signal.h>
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#include <pthread.h>
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#define COUNT_THREADS 8
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static struct lws_context *context;
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static int interrupted;
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static const struct lws_http_mount mount = {
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/* .mount_next */ NULL, /* linked-list "next" */
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/* .mountpoint */ "/", /* mountpoint URL */
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/* .origin */ "./mount-origin", /* serve from dir */
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/* .def */ "index.html", /* default filename */
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/* .protocol */ NULL,
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/* .cgienv */ NULL,
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/* .extra_mimetypes */ NULL,
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/* .interpret */ NULL,
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/* .cgi_timeout */ 0,
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/* .cache_max_age */ 0,
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/* .auth_mask */ 0,
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/* .cache_reusable */ 0,
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/* .cache_revalidate */ 0,
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/* .cache_intermediaries */ 0,
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/* .origin_protocol */ LWSMPRO_FILE, /* files in a dir */
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/* .mountpoint_len */ 1, /* char count */
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/* .basic_auth_login_file */ NULL,
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};
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void *thread_service(void *threadid)
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{
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while (lws_service_tsi(context, 10000,
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(int)(lws_intptr_t)threadid) >= 0 &&
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!interrupted)
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;
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pthread_exit(NULL);
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return NULL;
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}
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void sigint_handler(int sig)
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{
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interrupted = 1;
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lws_cancel_service(context);
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}
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int main(int argc, const char **argv)
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{
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pthread_t pthread_service[COUNT_THREADS];
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struct lws_context_creation_info info;
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void *retval;
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const char *p;
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int n = 0, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
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/* for LLL_ verbosity above NOTICE to be built into lws,
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* lws must have been configured and built with
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* -DCMAKE_BUILD_TYPE=DEBUG instead of =RELEASE */
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/* | LLL_INFO */ /* | LLL_PARSER */ /* | LLL_HEADER */
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/* | LLL_EXT */ /* | LLL_CLIENT */ /* | LLL_LATENCY */
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/* | LLL_DEBUG */;
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if ((p = lws_cmdline_option(argc, argv, "-d")))
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logs = atoi(p);
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lws_set_log_level(logs, NULL);
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lwsl_user("LWS minimal http server SMP | visit http://127.0.0.1:7681\n");
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signal(SIGINT, sigint_handler);
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memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
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info.port = 7681;
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info.mounts = &mount;
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info.options =
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LWS_SERVER_OPTION_HTTP_HEADERS_SECURITY_BEST_PRACTICES_ENFORCE;
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if ((p = lws_cmdline_option(argc, argv, "-t"))) {
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info.count_threads = atoi(p);
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if (info.count_threads < 1 || info.count_threads > LWS_MAX_SMP)
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return 1;
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} else
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info.count_threads = COUNT_THREADS;
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if (lws_cmdline_option(argc, argv, "-s")) {
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info.options = LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT;
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info.ssl_cert_filepath = "localhost-100y.cert";
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info.ssl_private_key_filepath = "localhost-100y.key";
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}
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context = lws_create_context(&info);
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if (!context) {
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lwsl_err("lws init failed\n");
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return 1;
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}
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lwsl_notice(" Service threads: %d\n", lws_get_count_threads(context));
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/* start all the service threads */
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for (n = 0; n < lws_get_count_threads(context); n++)
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if (pthread_create(&pthread_service[n], NULL, thread_service,
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(void *)(lws_intptr_t)n))
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lwsl_err("Failed to start service thread\n");
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/* wait for all the service threads to exit */
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while ((--n) >= 0)
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pthread_join(pthread_service[n], &retval);
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lws_context_destroy(context);
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return 0;
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}
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