mirror of
https://github.com/warmcat/libwebsockets.git
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2f4316527b
As it is, if time_t is 32-bit on the platform it might lead to arithmetic overflow, so force it to lws_usec_t (uint64_t) even though it works OK here on x86_64. Add a minimal example aimed at testing the wsi hrtimer stability consistently across platforms. Add and disable by default hrtimer dump code (this is too expensive and specific to internal testing to leave in for debug mode even if it's not printed). If you hack it enabled, it will dump the sul list for the pt and assert if the list is disordered.
143 lines
3.7 KiB
C
143 lines
3.7 KiB
C
/*
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* lws-minimal-ws-server-timer
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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 the most minimal http server you can make with lws,
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* with an added websocket chat server.
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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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#include <libwebsockets.h>
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#include <string.h>
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#include <signal.h>
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static int
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callback_protocol(struct lws *wsi, enum lws_callback_reasons reason,
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void *user, void *in, size_t len)
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{
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switch (reason) {
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case LWS_CALLBACK_ESTABLISHED:
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lwsl_user("LWS_CALLBACK_ESTABLISHED\n");
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lws_set_timer_usecs(wsi, 20 * LWS_USEC_PER_SEC);
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lws_set_timeout(wsi, 1, 60);
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break;
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case LWS_CALLBACK_TIMER:
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lwsl_user("LWS_CALLBACK_TIMER\n");
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lws_set_timer_usecs(wsi, 20 * LWS_USEC_PER_SEC);
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lws_set_timeout(wsi, 1, 60);
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break;
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case LWS_CALLBACK_CLOSED:
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lwsl_user("LWS_CALLBACK_CLOSED\n");
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break;
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default:
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break;
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}
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return 0;
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}
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static struct lws_protocols protocols[] = {
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{ "http", lws_callback_http_dummy, 0, 0 },
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{ "timer", callback_protocol, 0, 0 },
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{ NULL, NULL, 0, 0 } /* terminator */
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};
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static const lws_retry_bo_t retry = {
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.secs_since_valid_ping = 3,
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.secs_since_valid_hangup = 10,
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};
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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 sigint_handler(int sig)
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{
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interrupted = 1;
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}
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int main(int argc, const char **argv)
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{
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struct lws_context_creation_info info;
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struct lws_context *context;
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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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signal(SIGINT, sigint_handler);
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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 ws server | visit http://localhost:7681 (-s = use TLS / https)\n");
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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.protocols = protocols;
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info.vhost_name = "localhost";
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info.ws_ping_pong_interval = 10;
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info.options =
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LWS_SERVER_OPTION_HTTP_HEADERS_SECURITY_BEST_PRACTICES_ENFORCE;
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if (lws_cmdline_option(argc, argv, "-s")) {
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lwsl_user("Server using TLS\n");
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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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if (lws_cmdline_option(argc, argv, "-h"))
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info.options |= LWS_SERVER_OPTION_VHOST_UPG_STRICT_HOST_CHECK;
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if (lws_cmdline_option(argc, argv, "-v"))
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info.retry_and_idle_policy = &retry;
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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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while (n >= 0 && !interrupted)
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n = lws_service(context, 0);
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lws_context_destroy(context);
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return 0;
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}
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