/*
- * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
+ * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca>
+ * Copyright (C) 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2 only,
- * as published by the Free Software Foundation.
+ * SPDX-License-Identifier: GPL-2.0-only
*
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef _LTT_TRACE_UST_H
#define _LTT_TRACE_UST_H
-#include <config.h>
#include <limits.h>
#include <urcu/list.h>
-#include <lttng/lttng.h>
-#include <common/hashtable/hashtable.h>
#include <common/defaults.h>
+#include <common/hashtable/hashtable.h>
+#include <common/tracker.h>
+#include <lttng/lttng.h>
#include "consumer.h"
-#include "agent.h"
-#include "ust-ctl.h"
+#include "lttng-ust-ctl.h"
+
+struct agent;
struct ltt_ust_ht_key {
const char *name;
- const struct lttng_filter_bytecode *filter;
- enum lttng_ust_loglevel_type loglevel;
+ const struct lttng_bytecode *filter;
+ enum lttng_ust_loglevel_type loglevel_type;
+ int loglevel_value;
const struct lttng_event_exclusion *exclusion;
};
/* Context hash table nodes */
struct ltt_ust_context {
- struct lttng_ust_context ctx;
+ struct lttng_ust_context_attr ctx;
struct lttng_ht_node_ulong node;
struct cds_list_head list;
};
struct lttng_ust_event attr;
struct lttng_ht_node_str node;
char *filter_expression;
- struct lttng_ust_filter_bytecode *filter;
+ struct lttng_bytecode *filter;
struct lttng_event_exclusion *exclusion;
+ /*
+ * An internal event is an event which was created by the session daemon
+ * through which, for example, events emitted in Agent domains are
+ * "funelled". This is used to hide internal events from external
+ * clients as they should never be modified by the external world.
+ */
+ bool internal;
};
/* UST channel */
struct ltt_ust_channel {
uint64_t id; /* unique id per session. */
unsigned int enabled;
+ /*
+ * A UST channel can be part of a userspace sub-domain such as JUL,
+ * Log4j, Python.
+ */
+ enum lttng_domain_type domain;
char name[LTTNG_UST_SYM_NAME_LEN];
struct lttng_ust_channel_attr attr;
struct lttng_ht *ctx;
struct lttng_ht_node_str node;
uint64_t tracefile_size;
uint64_t tracefile_count;
+ uint64_t per_pid_closed_app_discarded;
+ uint64_t per_pid_closed_app_lost;
+ uint64_t monitor_timer_interval;
};
/* UST domain global (LTTNG_DOMAIN_UST) */
struct cds_list_head registry_buffer_uid_list;
};
-struct ust_pid_tracker_node {
+struct ust_id_tracker_node {
struct lttng_ht_node_ulong node;
};
-struct ust_pid_tracker {
+struct ust_id_tracker {
struct lttng_ht *ht;
};
gid_t gid;
/* Is the session active meaning has is been started or stopped. */
unsigned int active:1;
- /*
- * Two consumer_output object are needed where one is for the current
- * output object and the second one is the temporary object used to store
- * URI being set by the lttng_set_consumer_uri call. Once
- * lttng_enable_consumer is called, the two pointers are swapped.
- */
struct consumer_output *consumer;
- struct consumer_output *tmp_consumer;
/* Sequence number for filters so the tracer knows the ordering. */
uint64_t filter_seq_num;
/* This indicates which type of buffer this session is set for. */
char root_shm_path[PATH_MAX];
char shm_path[PATH_MAX];
- struct ust_pid_tracker pid_tracker;
+ /* Current trace chunk of the ltt_session. */
+ struct lttng_trace_chunk *current_trace_chunk;
+
+ /* Trackers used for actual lookup on app registration. */
+ struct ust_id_tracker vpid_tracker;
+ struct ust_id_tracker vuid_tracker;
+ struct ust_id_tracker vgid_tracker;
+
+ /* Tracker list of keys requested by users. */
+ struct process_attr_tracker *tracker_vpid;
+ struct process_attr_tracker *tracker_vuid;
+ struct process_attr_tracker *tracker_vgid;
};
/*
* Lookup functions. NULL is returned if not found.
*/
struct ltt_ust_event *trace_ust_find_event(struct lttng_ht *ht,
- char *name, struct lttng_filter_bytecode *filter, int loglevel,
+ char *name, struct lttng_bytecode *filter,
+ enum lttng_ust_loglevel_type loglevel_type, int loglevel_value,
struct lttng_event_exclusion *exclusion);
struct ltt_ust_channel *trace_ust_find_channel_by_name(struct lttng_ht *ht,
- char *name);
+ const char *name);
struct agent *trace_ust_find_agent(struct ltt_ust_session *session,
enum lttng_domain_type domain_type);
* Create functions malloc() the data structure.
*/
struct ltt_ust_session *trace_ust_create_session(uint64_t session_id);
-struct ltt_ust_channel *trace_ust_create_channel(struct lttng_channel *attr);
-struct ltt_ust_event *trace_ust_create_event(struct lttng_event *ev,
+struct ltt_ust_channel *trace_ust_create_channel(struct lttng_channel *attr,
+ enum lttng_domain_type domain);
+enum lttng_error_code trace_ust_create_event(struct lttng_event *ev,
char *filter_expression,
- struct lttng_filter_bytecode *filter,
- struct lttng_event_exclusion *exclusion);
+ struct lttng_bytecode *filter,
+ struct lttng_event_exclusion *exclusion,
+ bool internal_event, struct ltt_ust_event **ust_event);
struct ltt_ust_context *trace_ust_create_context(
- struct lttng_event_context *ctx);
-int trace_ust_match_context(struct ltt_ust_context *uctx,
- struct lttng_event_context *ctx);
+ const struct lttng_event_context *ctx);
+int trace_ust_match_context(const struct ltt_ust_context *uctx,
+ const struct lttng_event_context *ctx);
void trace_ust_delete_channel(struct lttng_ht *ht,
struct ltt_ust_channel *channel);
void trace_ust_destroy_session(struct ltt_ust_session *session);
void trace_ust_destroy_channel(struct ltt_ust_channel *channel);
void trace_ust_destroy_event(struct ltt_ust_event *event);
+void trace_ust_destroy_context(struct ltt_ust_context *ctx);
+void trace_ust_free_session(struct ltt_ust_session *session);
-int trace_ust_track_pid(struct ltt_ust_session *session, int pid);
-int trace_ust_untrack_pid(struct ltt_ust_session *session, int pid);
-
-ssize_t trace_ust_list_tracker_pids(struct ltt_ust_session *session,
- int32_t **_pids);
+int trace_ust_id_tracker_lookup(enum lttng_process_attr process_attr,
+ struct ltt_ust_session *session,
+ int id);
+enum lttng_error_code trace_ust_process_attr_tracker_set_tracking_policy(
+ struct ltt_ust_session *session,
+ enum lttng_process_attr process_attr,
+ enum lttng_tracking_policy policy);
+enum lttng_error_code trace_ust_process_attr_tracker_inclusion_set_add_value(
+ struct ltt_ust_session *session,
+ enum lttng_process_attr process_attr,
+ const struct process_attr_value *value);
+enum lttng_error_code trace_ust_process_attr_tracker_inclusion_set_remove_value(
+ struct ltt_ust_session *session,
+ enum lttng_process_attr process_attr,
+ const struct process_attr_value *value);
+const struct process_attr_tracker *trace_ust_get_process_attr_tracker(
+ struct ltt_ust_session *session,
+ enum lttng_process_attr process_attr);
#else /* HAVE_LIBLTTNG_UST_CTL */
}
static inline
struct ltt_ust_channel *trace_ust_find_channel_by_name(struct lttng_ht *ht,
- char *name)
+ const char *name)
{
return NULL;
}
return NULL;
}
static inline
-struct ltt_ust_channel *trace_ust_create_channel(struct lttng_channel *attr)
+struct ltt_ust_channel *trace_ust_create_channel(struct lttng_channel *attr,
+ enum lttng_domain_type domain)
{
return NULL;
}
static inline
-struct ltt_ust_event *trace_ust_create_event(struct lttng_event *ev,
+enum lttng_error_code trace_ust_create_event(struct lttng_event *ev,
const char *filter_expression,
- struct lttng_filter_bytecode *filter,
- struct lttng_event_exclusion *exclusion)
+ struct lttng_bytecode *filter,
+ struct lttng_event_exclusion *exclusion,
+ bool internal_event, struct ltt_ust_event **ust_event)
{
- return NULL;
+ return LTTNG_ERR_NO_UST;
}
static inline
void trace_ust_destroy_session(struct ltt_ust_session *session)
void trace_ust_destroy_event(struct ltt_ust_event *event)
{
}
+
+static inline
+void trace_ust_free_session(struct ltt_ust_session *session)
+{
+}
+
static inline
struct ltt_ust_context *trace_ust_create_context(
- struct lttng_event_context *ctx)
+ const struct lttng_event_context *ctx)
{
return NULL;
}
static inline
-int trace_ust_match_context(struct ltt_ust_context *uctx,
- struct lttng_event_context *ctx)
+int trace_ust_match_context(const struct ltt_ust_context *uctx,
+ const struct lttng_event_context *ctx)
{
return 0;
}
-static inline struct ltt_ust_event *trace_ust_find_event(struct lttng_ht *ht,
- char *name, struct lttng_filter_bytecode *filter, int loglevel,
+static inline
+struct ltt_ust_event *trace_ust_find_event(struct lttng_ht *ht,
+ char *name, struct lttng_bytecode *filter,
+ enum lttng_ust_loglevel_type loglevel_type, int loglevel_value,
struct lttng_event_exclusion *exclusion)
{
return NULL;
{
return NULL;
}
-static inline
-int trace_ust_track_pid(struct ltt_ust_session *session, int pid)
+static inline int trace_ust_id_tracker_lookup(
+ enum lttng_process_attr process_attr,
+ struct ltt_ust_session *session,
+ int id)
{
return 0;
}
-static inline
-int trace_ust_untrack_pid(struct ltt_ust_session *session, int pid)
+static inline enum lttng_error_code
+trace_ust_process_attr_tracker_set_tracking_policy(
+ struct ltt_ust_session *session,
+ enum lttng_process_attr process_attr,
+ enum lttng_tracking_policy policy)
{
- return 0;
+ return LTTNG_OK;
+}
+static inline enum lttng_error_code
+trace_ust_process_attr_tracker_inclusion_set_add_value(
+ struct ltt_ust_session *session,
+ enum lttng_process_attr process_attr,
+ const struct process_attr_value *value)
+{
+ return LTTNG_OK;
}
-ssize_t trace_ust_list_tracker_pids(struct ltt_ust_session *session,
- int32_t **_pids)
+static inline enum lttng_error_code
+trace_ust_process_attr_tracker_inclusion_set_remove_value(
+ struct ltt_ust_session *session,
+ enum lttng_process_attr process_attr,
+ const struct process_attr_value *value)
{
- return -1;
+ return LTTNG_OK;
}
+static inline const struct process_attr_tracker *
+trace_ust_get_process_attr_tracker(struct ltt_ust_session *session,
+ enum lttng_process_attr process_attr)
+{
+ return NULL;
+}
+
#endif /* HAVE_LIBLTTNG_UST_CTL */
#endif /* _LTT_TRACE_UST_H */
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