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/*
* lws-minimal-http-server-eventlib-smp
*
* Written in 2010-2019 by Andy Green <andy@warmcat.com>
*
* This file is made available under the Creative Commons CC0 1.0
* Universal Public Domain Dedication.
*
* This demonstrates a minimal http[s] server that can work with any of the
* supported event loop backends, or the default poll() one.
*
* To keep it simple, it serves stuff from the subdirectory
* "./mount-origin" of the directory it was started in.
* You can change that by changing mount.origin below.
*/
#include <libwebsockets.h>
#include <string.h>
#include <signal.h>
#if defined(WIN32)
#define HAVE_STRUCT_TIMESPEC
#if defined(pid_t)
#undef pid_t
#endif
#endif
#include <pthread.h>
#define COUNT_THREADS 8
static struct lws_context *context;
static volatile int interrupted;
static const struct lws_http_mount mount = {
/* .mount_next */ NULL, /* linked-list "next" */
/* .mountpoint */ "/", /* mountpoint URL */
/* .origin */ "./mount-origin", /* serve from dir */
/* .def */ "index.html", /* default filename */
/* .protocol */ NULL,
/* .cgienv */ NULL,
/* .extra_mimetypes */ NULL,
/* .interpret */ NULL,
/* .cgi_timeout */ 0,
/* .cache_max_age */ 0,
/* .auth_mask */ 0,
/* .cache_reusable */ 0,
/* .cache_revalidate */ 0,
/* .cache_intermediaries */ 0,
/* .origin_protocol */ LWSMPRO_FILE, /* files in a dir */
/* .mountpoint_len */ 1, /* char count */
/* .basic_auth_login_file */ NULL,
};
void *thread_service(void *threadid)
{
while (lws_service_tsi(context, 10000,
(int)(lws_intptr_t)threadid) >= 0 &&
!interrupted)
;
pthread_exit(NULL);
return NULL;
}
void signal_cb(void *handle, int signum)
{
interrupted = 1;
switch (signum) {
case SIGTERM:
case SIGINT:
break;
default:
lwsl_err("%s: signal %d\n", __func__, signum);
break;
}
lws_context_destroy(context);
}
void sigint_handler(int sig)
{
signal_cb(NULL, sig);
}
int main(int argc, const char **argv)
{
pthread_t pthread_service[COUNT_THREADS];
struct lws_context_creation_info info;
const char *p;
void *retval;
int n, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
/* for LLL_ verbosity above NOTICE to be built into lws,
* lws must have been configured and built with
* -DCMAKE_BUILD_TYPE=DEBUG instead of =RELEASE */
/* | LLL_INFO */ /* | LLL_PARSER */ /* | LLL_HEADER */
/* | LLL_EXT */ /* | LLL_CLIENT */ /* | LLL_LATENCY */
/* | LLL_DEBUG */;
if ((p = lws_cmdline_option(argc, argv, "-d")))
logs = atoi(p);
lws_set_log_level(logs, NULL);
lwsl_user("LWS minimal http server eventlib SMP | visit http://localhost:7681\n");
lwsl_user(" [-s (ssl)] [--uv (libuv)] [--ev (libev)] [--event (libevent)]\n");
lwsl_user("WARNING: Not stable, under development!\n");
memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
info.port = 7681;
info.mounts = &mount;
info.error_document_404 = "/404.html";
info.pcontext = &context;
info.signal_cb = signal_cb;
info.options =
LWS_SERVER_OPTION_HTTP_HEADERS_SECURITY_BEST_PRACTICES_ENFORCE;
if ((p = lws_cmdline_option(argc, argv, "-t"))) {
info.count_threads = (unsigned int)atoi(p);
if (info.count_threads < 1 || info.count_threads > LWS_MAX_SMP)
return 1;
} else
info.count_threads = COUNT_THREADS;
#if defined(LWS_WITH_TLS)
if (lws_cmdline_option(argc, argv, "-s")) {
info.options |= LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT;
info.ssl_cert_filepath = "localhost-100y.cert";
info.ssl_private_key_filepath = "localhost-100y.key";
}
#endif
if (lws_cmdline_option(argc, argv, "--uv"))
info.options |= LWS_SERVER_OPTION_LIBUV;
else
if (lws_cmdline_option(argc, argv, "--event"))
info.options |= LWS_SERVER_OPTION_LIBEVENT;
else
if (lws_cmdline_option(argc, argv, "--ev"))
info.options |= LWS_SERVER_OPTION_LIBEV;
else
if (lws_cmdline_option(argc, argv, "--glib"))
info.options |= LWS_SERVER_OPTION_GLIB;
else
signal(SIGINT, sigint_handler);
context = lws_create_context(&info);
if (!context) {
lwsl_err("lws init failed\n");
return 1;
}
lwsl_notice(" Service threads: %d\n", lws_get_count_threads(context));
/* start all the service threads */
for (n = 0; n < lws_get_count_threads(context); n++)
if (pthread_create(&pthread_service[n], NULL, thread_service,
(void *)(lws_intptr_t)n))
lwsl_err("Failed to start service thread\n");
/* wait for all the service threads to exit */
while ((--n) >= 0)
pthread_join(pthread_service[n], &retval);
lwsl_notice("%s: calling external context destroy\n", __func__);
lws_context_destroy(context);
return 0;
}
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