/*
* 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,
#ifndef _LTT_TRACE_UST_H
#define _LTT_TRACE_UST_H
-#include <config.h>
#include <limits.h>
#include <urcu/list.h>
#include <common/defaults.h>
#include "consumer.h"
-#include "jul.h"
#include "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;
+ 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;
};
unsigned int enabled;
struct lttng_ust_event attr;
struct lttng_ht_node_str node;
- struct lttng_ust_filter_bytecode *filter;
- const struct lttng_event_exclusion *exclusion;
+ char *filter_expression;
+ struct lttng_filter_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;
};
/* UST domain global (LTTNG_DOMAIN_UST) */
struct cds_list_head registry_buffer_uid_list;
};
+struct ust_pid_tracker_node {
+ struct lttng_ht_node_ulong node;
+};
+
+struct ust_pid_tracker {
+ struct lttng_ht *ht;
+};
+
/* UST session */
struct ltt_ust_session {
uint64_t id; /* Unique identifier of session */
- int start_trace;
struct ltt_ust_domain_global domain_global;
- struct jul_domain domain_jul;
+ /* Hash table of agent indexed by agent domain. */
+ struct lttng_ht *agents;
/* UID/GID of the user owning the session */
uid_t uid;
gid_t gid;
- /*
- * 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.
- */
+ /* Is the session active meaning has is been started or stopped. */
+ unsigned int active:1;
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. */
unsigned int snapshot_mode;
unsigned int has_non_default_channel;
unsigned int live_timer_interval; /* usec */
+
+ /* Metadata channel attributes. */
+ struct lttng_ust_channel_attr metadata_attr;
+
+ /*
+ * Path where to keep the shared memory files.
+ */
+ char root_shm_path[PATH_MAX];
+ char shm_path[PATH_MAX];
+
+ struct ust_pid_tracker pid_tracker;
};
/*
* 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_filter_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);
+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_channel *trace_ust_create_channel(struct lttng_channel *attr,
+ enum lttng_domain_type domain);
struct ltt_ust_event *trace_ust_create_event(struct lttng_event *ev,
+ char *filter_expression,
struct lttng_filter_bytecode *filter,
- struct lttng_event_exclusion *exclusion);
+ struct lttng_event_exclusion *exclusion,
+ bool internal_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);
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);
+
+int trace_ust_track_pid(struct ltt_ust_session *session, int pid);
+int trace_ust_untrack_pid(struct ltt_ust_session *session, int pid);
+
+int trace_ust_pid_tracker_lookup(struct ltt_ust_session *session, int pid);
+
+ssize_t trace_ust_list_tracker_pids(struct ltt_ust_session *session,
+ int32_t **_pids);
#else /* HAVE_LIBLTTNG_UST_CTL */
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,
+ const char *filter_expression,
struct lttng_filter_bytecode *filter,
- struct lttng_event_exclusion *exclusion)
+ struct lttng_event_exclusion *exclusion,
+ bool internal_event)
{
return NULL;
}
{
return NULL;
}
-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
+int trace_ust_match_context(struct ltt_ust_context *uctx,
+ 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,
+ enum lttng_ust_loglevel_type loglevel_type, int loglevel_value,
struct lttng_event_exclusion *exclusion)
{
return NULL;
{
return;
}
-
+static inline
+struct agent *trace_ust_find_agent(struct ltt_ust_session *session,
+ enum lttng_domain_type domain_type)
+{
+ return NULL;
+}
+static inline
+int trace_ust_track_pid(struct ltt_ust_session *session, int pid)
+{
+ return 0;
+}
+static inline
+int trace_ust_untrack_pid(struct ltt_ust_session *session, int pid)
+{
+ return 0;
+}
+static inline
+int trace_ust_pid_tracker_lookup(struct ltt_ust_session *session, int pid)
+{
+ return 0;
+}
+static inline
+ssize_t trace_ust_list_tracker_pids(struct ltt_ust_session *session,
+ int32_t **_pids)
+{
+ return -1;
+}
#endif /* HAVE_LIBLTTNG_UST_CTL */
#endif /* _LTT_TRACE_UST_H */
projects / lttng-tools.git / blobdiff