/*
- * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
+ * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca>
*
- * 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_KERNEL_H
#include <common/defaults.h>
#include "consumer.h"
+#include "tracker.h"
/* Kernel event list */
struct ltt_kernel_event_list {
struct cds_list_head head;
};
+/* Kernel event rule token list */
+struct ltt_kernel_token_event_rule_list {
+ struct cds_list_head head;
+};
+
/* Channel stream list */
struct ltt_kernel_stream_list {
struct cds_list_head head;
struct cds_list_head head;
};
+struct ltt_kernel_context {
+ struct lttng_kernel_context ctx;
+ struct cds_list_head list;
+ /* Indicates whether or not the context is in a list. */
+ bool in_list;
+};
+
/* Kernel event */
struct ltt_kernel_event {
int fd;
int enabled;
+ enum lttng_event_type type;
struct lttng_kernel_event *event;
struct cds_list_head list;
+ char *filter_expression;
+ struct lttng_filter_bytecode *filter;
+ struct lttng_userspace_probe_location *userspace_probe_location;
+};
+
+/* Kernel event */
+struct ltt_kernel_token_event_rule {
+ int fd;
+ int enabled;
+ enum lttng_event_type type;
+ struct lttng_event_rule *event_rule;
+ struct cds_list_head list;
+ uint64_t token;
+ const struct lttng_filter_bytecode *filter;
+ struct lttng_userspace_probe_location *userspace_probe_location;
};
/* Kernel channel */
struct ltt_kernel_channel {
int fd;
+ uint64_t key; /* Key to reference this channel with the consumer. */
int enabled;
unsigned int stream_count;
unsigned int event_count;
- /*
- * TODO: need internal representation to support more than a
- * single context.
- */
- struct lttng_kernel_context *ctx;
+ bool published_to_notification_thread;
+ struct cds_list_head ctx_list;
struct lttng_channel *channel;
struct ltt_kernel_event_list events_list;
struct ltt_kernel_stream_list stream_list;
struct cds_list_head list;
/* Session pointer which has a reference to this object. */
struct ltt_kernel_session *session;
+ bool sent_to_consumer;
};
/* Metadata */
struct ltt_kernel_metadata {
int fd;
+ uint64_t key; /* Key to reference this channel with the consumer. */
struct lttng_channel *conf;
};
int fd;
int state;
int cpu;
+ bool sent_to_consumer;
/* Format is %s_%d respectively channel name and CPU number. */
char name[DEFAULT_STREAM_NAME_LEN];
uint64_t tracefile_size;
/* UID/GID of the user owning the session */
uid_t uid;
gid_t gid;
- /*
- * Two consumer_output object are needed where one is needed 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;
/* Tracing session id */
uint64_t id;
- /* Session is started and active */
- unsigned int started;
+ /* Session is active or not meaning it has been started or stopped. */
+ unsigned int active:1;
/* Tell or not if the session has to output the traces. */
unsigned int output_traces;
+ unsigned int snapshot_mode;
+ unsigned int has_non_default_channel;
+ /* Current trace chunk of the ltt_session. */
+ struct lttng_trace_chunk *current_trace_chunk;
+ /* Tracker lists */
+ struct lttng_tracker_list *tracker_list_pid;
+ struct lttng_tracker_list *tracker_list_vpid;
+ struct lttng_tracker_list *tracker_list_uid;
+ struct lttng_tracker_list *tracker_list_vuid;
+ struct lttng_tracker_list *tracker_list_gid;
+ struct lttng_tracker_list *tracker_list_vgid;
};
/*
* Lookup functions. NULL is returned if not found.
*/
struct ltt_kernel_event *trace_kernel_get_event_by_name(
- char *name, struct ltt_kernel_channel *channel);
+ char *name, struct ltt_kernel_channel *channel,
+ enum lttng_event_type type);
+struct ltt_kernel_event *trace_kernel_find_event(
+ char *name, struct ltt_kernel_channel *channel,
+ enum lttng_event_type type,
+ struct lttng_filter_bytecode *filter);
struct ltt_kernel_channel *trace_kernel_get_channel_by_name(
- char *name, struct ltt_kernel_session *session);
+ const char *name, struct ltt_kernel_session *session);
+
+struct ltt_kernel_token_event_rule *trace_kernel_find_trigger_by_token(
+ struct ltt_kernel_token_event_rule_list *list,
+ uint64_t token);
/*
* Create functions malloc() the data structure.
struct ltt_kernel_session *trace_kernel_create_session(void);
struct ltt_kernel_channel *trace_kernel_create_channel(
struct lttng_channel *chan);
-struct ltt_kernel_event *trace_kernel_create_event(struct lttng_event *ev);
+enum lttng_error_code trace_kernel_create_event(struct lttng_event *ev,
+ char *filter_expression, struct lttng_filter_bytecode *filter,
+ struct ltt_kernel_event **kernel_event);
struct ltt_kernel_metadata *trace_kernel_create_metadata(void);
struct ltt_kernel_stream *trace_kernel_create_stream(const char *name,
unsigned int count);
+struct ltt_kernel_context *trace_kernel_create_context(
+ struct lttng_kernel_context *ctx);
+enum lttng_error_code trace_kernel_create_token_event_rule(
+ struct lttng_event_rule *event_rule,
+ uint64_t token,
+ struct ltt_kernel_token_event_rule **kernel_token_event_rule);
+struct ltt_kernel_context *trace_kernel_copy_context(
+ struct ltt_kernel_context *ctx);
+enum lttng_error_code trace_kernel_init_trigger_from_event_rule(const struct lttng_event_rule *rule,
+ struct lttng_kernel_trigger *kernel_trigger);
/*
* Destroy functions free() the data structure and remove from linked list if
void trace_kernel_destroy_channel(struct ltt_kernel_channel *channel);
void trace_kernel_destroy_event(struct ltt_kernel_event *event);
void trace_kernel_destroy_stream(struct ltt_kernel_stream *stream);
+void trace_kernel_destroy_context(struct ltt_kernel_context *ctx);
+void trace_kernel_destroy_token_event_rule(struct ltt_kernel_token_event_rule *rule);
+void trace_kernel_free_session(struct ltt_kernel_session *session);
#endif /* _LTT_TRACE_KERNEL_H */
projects / lttng-tools.git / blobdiff