/*
- * ust-core.c
+ * SPDX-License-Identifier: LGPL-2.1-only
*
* Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; only
- * version 2.1 of the License.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#define _LGPL_SOURCE
+#include <stdint.h>
+#include <stddef.h>
#include <stdlib.h>
-#include <lttng/ust-events.h>
+
+#include "ust-events-internal.h"
#include <usterr-signal-safe.h>
#include "lttng-tracer-core.h"
#include "jhash.h"
static CDS_LIST_HEAD(lttng_transport_list);
+static CDS_LIST_HEAD(lttng_counter_transport_list);
-struct lttng_transport *lttng_transport_find(const char *name)
+struct lttng_transport *lttng_ust_transport_find(const char *name)
{
struct lttng_transport *transport;
return NULL;
}
+struct lttng_counter_transport *lttng_counter_transport_find(const char *name)
+{
+ struct lttng_counter_transport *transport;
+
+ cds_list_for_each_entry(transport, <tng_counter_transport_list, node) {
+ if (!strcmp(transport->name, name))
+ return transport;
+ }
+ return NULL;
+}
+
/**
* lttng_transport_register - LTT transport registration
* @transport: transport structure
cds_list_del(&transport->node);
}
+/**
+ * lttng_counter_transport_register - LTTng counter transport registration
+ * @transport: transport structure
+ *
+ * Registers a counter transport which can be used as output to extract
+ * the data out of LTTng. Called with ust_lock held.
+ */
+void lttng_counter_transport_register(struct lttng_counter_transport *transport)
+{
+ cds_list_add_tail(&transport->node, <tng_counter_transport_list);
+}
+
+/**
+ * lttng_counter_transport_unregister - LTTng counter transport unregistration
+ * @transport: transport structure
+ * Called with ust_lock held.
+ */
+void lttng_counter_transport_unregister(struct lttng_counter_transport *transport)
+{
+ cds_list_del(&transport->node);
+}
+
/*
* Needed by comm layer.
*/
-struct lttng_enum *lttng_ust_enum_get_from_desc(struct lttng_session *session,
- const struct lttng_enum_desc *enum_desc)
+struct lttng_enum *lttng_ust_enum_get_from_desc(struct lttng_ust_session *session,
+ struct lttng_ust_enum_desc *enum_desc)
{
struct lttng_enum *_enum;
struct cds_hlist_head *head;
uint32_t hash;
hash = jhash(enum_desc->name, name_len, 0);
- head = &session->enums_ht.table[hash & (LTTNG_UST_ENUM_HT_SIZE - 1)];
+ head = &session->priv->enums_ht.table[hash & (LTTNG_UST_ENUM_HT_SIZE - 1)];
cds_hlist_for_each_entry(_enum, node, head, hlist) {
assert(_enum->desc);
if (_enum->desc == enum_desc)
return NULL;
}
-size_t lttng_ust_dummy_get_size(struct lttng_ctx_field *field, size_t offset)
+size_t lttng_ust_dummy_get_size(struct lttng_ust_ctx_field *field, size_t offset)
{
size_t size = 0;
return size;
}
-void lttng_ust_dummy_record(struct lttng_ctx_field *field,
+void lttng_ust_dummy_record(struct lttng_ust_ctx_field *field,
struct lttng_ust_lib_ring_buffer_ctx *ctx,
struct lttng_channel *chan)
{
chan->ops->event_write(ctx, &sel_char, sizeof(sel_char));
}
-void lttng_ust_dummy_get_value(struct lttng_ctx_field *field,
- struct lttng_ctx_value *value)
+void lttng_ust_dummy_get_value(struct lttng_ust_ctx_field *field,
+ struct lttng_ust_ctx_value *value)
{
value->sel = LTTNG_UST_DYNAMIC_TYPE_NONE;
}