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Run libwebsockets in a worker thread

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This commit is contained in:
Steffen Vogel 2017-04-07 17:39:37 +02:00
parent 51e0930d39
commit 96190a5822
4 changed files with 32 additions and 20 deletions
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10
include/villas/web.h
View file

@ -7,6 +7,9 @@
#pragma once
#include <libconfig.h>
#include <pthread.h>
#include "common.h"
/* Forward declarations */
@ -24,6 +27,8 @@ struct web {
const char *htdocs; /**< The root directory for files served via HTTP. */
const char *ssl_cert; /**< Path to the SSL certitifcate for HTTPS / WSS. */
const char *ssl_private_key; /**< Path to the SSL private key for HTTPS / WSS. */
pthread_t thread;
};
/** Initialize the web interface.
@ -39,7 +44,4 @@ int web_start(struct web *w);
int web_stop(struct web *w);
/** Parse HTTPd and WebSocket related options */
int web_parse(struct web *w, config_setting_t *lcs);
/** libwebsockets service routine. Call periodically */
int web_service(struct web *w);
int web_parse(struct web *w, config_setting_t *lcs);

32
lib/web.c
View file

@ -122,6 +122,18 @@ static void logger(int level, const char *msg) {
}
}
static void * worker(void *ctx)
{
struct web *w = ctx;
assert(w->state == STATE_STARTED);
for (;;)
lws_service(w->context, 100);
return NULL;
}
int web_init(struct web *w, struct api *a)
{
lws_set_log_level((1 << LLL_COUNT) - 1, logger);
@ -154,6 +166,8 @@ int web_parse(struct web *w, config_setting_t *cfg)
int web_start(struct web *w)
{
int ret;
/* Start server */
struct lws_context_creation_info ctx_info = {
.options = LWS_SERVER_OPTION_EXPLICIT_VHOSTS | LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT,
@ -185,10 +199,14 @@ int web_start(struct web *w)
if (w->vhost == NULL)
error("WebSocket: failed to initialize server");
}
ret = pthread_create(&w->thread, NULL, worker, w);
if (ret)
error("Failed to start Web worker");
w->state = STATE_STARTED;
return 0;
return ret;
}
int web_stop(struct web *w)
@ -198,6 +216,11 @@ int web_stop(struct web *w)
if (w->state == STATE_STARTED)
lws_cancel_service(w->context);
/** @todo Wait for all connections to be closed */
pthread_cancel(w->thread);
pthread_join(w->thread, NULL);
w->state = STATE_STOPPED;
return 0;
@ -215,10 +238,3 @@ int web_destroy(struct web *w)
return 0;
}
int web_service(struct web *w)
{
assert(w->state == STATE_STARTED);
return lws_service(w->context, 10);
}

2
src/node.c
View file

@ -123,8 +123,6 @@ int main(int argc, char *argv[])
last = time_now();
}
web_service(&sn.web); /** @todo Maybe we should move this to another thread */
}
return 0;

8
src/pipe.c
View file

@ -247,12 +247,8 @@ int main(int argc, char *argv[])
pthread_create(&recvv.thread, NULL, recv_loop, NULL);
pthread_create(&sendd.thread, NULL, send_loop, NULL);
for (;;) {
if (node->_vt->start == websocket_start)
web_service(&sn.web);
else
sleep(1);
}
for (;;)
sleep(1);
return 0;
}