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use queue_signalled for websocket node

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This commit is contained in:
Georg Reinke 2017-04-07 12:25:17 +02:00
parent c7e241cb2b
commit 45f5d9697a
2 changed files with 8 additions and 35 deletions
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9
include/villas/nodes/websocket.h
View file

@ -20,7 +20,7 @@
#include "node.h"
#include "pool.h"
#include "queue.h"
#include "queue_signalled.h"
#include "common.h"
/* Forward declaration */
@ -32,10 +32,7 @@ struct websocket {
struct list destinations; /**< List of websocket servers connect to in client mode (struct websocket_destination). */
struct pool pool;
struct queue queue; /**< For samples which are received from WebSockets a */
pthread_mutex_t mutex; /**< Mutex for signalling the availability of new samples in struct websocket::queue. */
pthread_cond_t cond; /**< Condition variable for signalling the availability of new samples in struct websocket::queue. */
struct queue_signalled queue; /**< For samples which are received from WebSockets a */
};
/* Internal datastructures */
@ -84,4 +81,4 @@ int websocket_read(struct node *n, struct sample *smps[], unsigned cnt);
/** @see node_vtable::write */
int websocket_write(struct node *n, struct sample *smps[], unsigned cnt);
/** @} */
/** @} */

34
lib/nodes/websocket.c
View file

@ -245,16 +245,12 @@ int websocket_protocol_cb(struct lws *wsi, enum lws_callback_reasons reason, voi
memcpy(msg2, msg, WEBMSG_LEN(msg->length));
ret = queue_push(&w->queue, msg2);
ret = queue_signalled_push_many(&w->queue, (void **) msg2, 1);
if (ret != 1) {
warn("Queue overrun for connection %s", websocket_connection_name(c));
break;
}
pthread_mutex_lock(&w->mutex);
pthread_cond_broadcast(&w->cond);
pthread_mutex_unlock(&w->mutex);
/* Next message */
msg = (struct webmsg *) ((char *) msg + WEBMSG_LEN(msg->length));
}
@ -278,15 +274,7 @@ int websocket_start(struct node *n)
if (ret)
return ret;
ret = queue_init(&w->queue, DEFAULT_QUEUELEN, &memtype_hugepage);
if (ret)
return ret;
ret = pthread_mutex_init(&w->mutex, NULL);
if (ret)
return ret;
ret = pthread_cond_init(&w->cond, NULL);
ret = queue_signalled_init(&w->queue, DEFAULT_QUEUELEN, &memtype_hugepage);
if (ret)
return ret;
@ -312,18 +300,10 @@ int websocket_stop(struct node *n)
if (ret)
return ret;
ret = queue_destroy(&w->queue);
ret = queue_signalled_destroy(&w->queue);
if (ret)
return ret;
ret = pthread_mutex_destroy(&w->mutex);
if (ret)
return ret;
ret = pthread_cond_destroy(&w->cond);
if (ret)
return ret;
return 0;
}
@ -345,11 +325,7 @@ int websocket_read(struct node *n, struct sample *smps[], unsigned cnt)
struct webmsg *msgs[cnt];
do {
pthread_mutex_lock(&w->mutex);
pthread_cond_wait(&w->cond, &w->mutex);
pthread_mutex_unlock(&w->mutex);
got = queue_pull_many(&w->queue, (void **) msgs, cnt);
got = queue_signalled_pull_many(&w->queue, (void **) msgs, cnt);
if (got < 0)
return got;
} while (got == 0);
@ -471,4 +447,4 @@ static struct plugin p = {
}
};
REGISTER_PLUGIN(&p)
REGISTER_PLUGIN(&p)