/*
- * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
- * Copyright (C) 2016 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ * 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_UST_APP_H
#include <stdint.h>
-#include <common/compat/uuid.h>
+#include <common/uuid.h>
#include "trace-ust.h"
#include "ust-registry.h"
* Global applications HT used by the session daemon. This table is indexed by
* PID using the pid_n node and pid value of an ust_app.
*/
-struct lttng_ht *ust_app_ht;
+extern struct lttng_ht *ust_app_ht;
/*
* Global applications HT used by the session daemon. This table is indexed by
*
* The 'sock' in question here is the 'command' socket.
*/
-struct lttng_ht *ust_app_ht_by_sock;
+extern struct lttng_ht *ust_app_ht_by_sock;
/*
* Global applications HT used by the session daemon. This table is indexed by
* socket using the notify_sock_n node and notify_sock value of an ust_app.
*/
-struct lttng_ht *ust_app_ht_by_notify_sock;
+extern struct lttng_ht *ust_app_ht_by_notify_sock;
/* Stream list containing ust_app_stream. */
struct ust_app_stream_list {
int handle;
/* Channel and streams were sent to the UST tracer. */
int is_sent;
- /* Unique key used to identify the channel on the consumer side. */
+ /*
+ * Unique key used to identify the channel on the consumer side.
+ * 0 is a reserved 'invalid' value used to indicate that the consumer
+ * does not know about this channel (i.e. an error occurred).
+ */
uint64_t key;
/* Id of the tracing channel set on creation. */
uint64_t tracing_channel_id;
* ust_sessions_objd hash table in the ust_app object.
*/
struct lttng_ht_node_ulong ust_objd_node;
+ /* Starts with 'ust'; no leading slash. */
char path[PATH_MAX];
/* UID/GID of the application owning the session */
- uid_t uid;
- gid_t gid;
+ struct lttng_credentials real_credentials;
/* Effective UID and GID. Same as the tracing session. */
- uid_t euid;
- gid_t egid;
+ struct lttng_credentials effective_credentials;
struct cds_list_head teardown_node;
/*
* Once at least *one* session is created onto the application, the
* to a negative value indicating that the agent application is gone.
*/
int agent_app_sock;
+ /*
+ * Time at which the app is registred.
+ * Used for path creation
+ */
+ time_t registration_time;
+ /*
+ * Event notifier
+ */
+ struct {
+ /*
+ * Handle to the lttng_ust object representing the event
+ * notifier group.
+ */
+ struct lttng_ust_object_data *object;
+ struct lttng_pipe *event_pipe;
+ } event_notifier_group;
};
#ifdef HAVE_LIBLTTNG_UST_CTL
int ust_app_destroy_trace_all(struct ltt_ust_session *usess);
int ust_app_list_events(struct lttng_event **events);
int ust_app_list_event_fields(struct lttng_event_field **fields);
-int ust_app_create_channel_glb(struct ltt_ust_session *usess,
- struct ltt_ust_channel *uchan);
int ust_app_create_event_glb(struct ltt_ust_session *usess,
struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent);
-int ust_app_enable_event_pid(struct ltt_ust_session *usess,
- struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent,
- pid_t pid);
int ust_app_disable_channel_glb(struct ltt_ust_session *usess,
struct ltt_ust_channel *uchan);
int ust_app_enable_channel_glb(struct ltt_ust_session *usess,
struct ltt_ust_channel *uchan);
int ust_app_enable_event_glb(struct ltt_ust_session *usess,
struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent);
-int ust_app_enable_all_event_glb(struct ltt_ust_session *usess,
- struct ltt_ust_channel *uchan);
int ust_app_disable_event_glb(struct ltt_ust_session *usess,
struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent);
int ust_app_add_ctx_channel_glb(struct ltt_ust_session *usess,
ssize_t ust_app_push_metadata(struct ust_registry_session *registry,
struct consumer_socket *socket, int send_zero_data);
void ust_app_destroy(struct ust_app *app);
-int ust_app_snapshot_record(struct ltt_ust_session *usess,
- struct snapshot_output *output, int wait,
+enum lttng_error_code ust_app_snapshot_record(
+ const struct ltt_ust_session *usess,
+ const struct consumer_output *output, int wait,
uint64_t nb_packets_per_stream);
uint64_t ust_app_get_size_one_more_packet_per_stream(
- struct ltt_ust_session *usess, uint64_t cur_nr_packets);
+ const struct ltt_ust_session *usess, uint64_t cur_nr_packets);
struct ust_app *ust_app_find_by_sock(int sock);
int ust_app_uid_get_channel_runtime_stats(uint64_t ust_session_id,
struct cds_list_head *buffer_reg_uid_list,
struct consumer_output *consumer,
int overwrite, uint64_t *discarded, uint64_t *lost);
int ust_app_regenerate_statedump_all(struct ltt_ust_session *usess);
-int ust_app_rotate_session(struct ltt_session *session, bool *ust_active);
+enum lttng_error_code ust_app_rotate_session(struct ltt_session *session);
+enum lttng_error_code ust_app_create_channel_subdirectories(
+ const struct ltt_ust_session *session);
+int ust_app_release_object(struct ust_app *app,
+ struct lttng_ust_object_data *data);
+enum lttng_error_code ust_app_clear_session(struct ltt_session *session);
+enum lttng_error_code ust_app_open_packets(struct ltt_session *session);
+
+int ust_app_setup_event_notifier_group(struct ust_app *app);
static inline
int ust_app_supported(void)
void ust_app_global_update(struct ltt_ust_session *usess, struct ust_app *app)
{}
static inline
-int ust_app_disable_channel_glb(struct ltt_ust_session *usess,
- struct ltt_ust_channel *uchan)
-{
- return 0;
-}
+void ust_app_global_update_tokens(struct ust_app *app)
+{}
static inline
-int ust_app_enable_channel_glb(struct ltt_ust_session *usess,
- struct ltt_ust_channel *uchan)
+int ust_app_setup_event_notifier_group(struct ust_app *app)
{
return 0;
}
static inline
-int ust_app_create_channel_glb(struct ltt_ust_session *usess,
+int ust_app_disable_channel_glb(struct ltt_ust_session *usess,
struct ltt_ust_channel *uchan)
{
return 0;
}
static inline
-int ust_app_enable_all_event_glb(struct ltt_ust_session *usess,
+int ust_app_enable_channel_glb(struct ltt_ust_session *usess,
struct ltt_ust_channel *uchan)
{
return 0;
return;
}
static inline
-int ust_app_snapshot_record(struct ltt_ust_session *usess,
- struct snapshot_output *output, int wait, uint64_t max_stream_size)
+enum lttng_error_code ust_app_snapshot_record(struct ltt_ust_session *usess,
+ const struct consumer_output *output, int wait, uint64_t max_stream_size)
{
return 0;
}
}
static inline
uint64_t ust_app_get_size_one_more_packet_per_stream(
- struct ltt_ust_session *usess, uint64_t cur_nr_packets) {
+ const struct ltt_ust_session *usess, uint64_t cur_nr_packets) {
return 0;
}
static inline
}
static inline
-int ust_app_rotate_session(struct ltt_session *session, bool *ust_active)
+enum lttng_error_code ust_app_rotate_session(struct ltt_session *session)
+{
+ return 0;
+}
+
+static inline
+enum lttng_error_code ust_app_create_channel_subdirectories(
+ const struct ltt_ust_session *session)
+{
+ return 0;
+}
+
+static inline
+int ust_app_release_object(struct ust_app *app, struct lttng_ust_object_data *data)
+{
+ return 0;
+}
+
+static inline
+enum lttng_error_code ust_app_clear_session(struct ltt_session *session)
+{
+ return 0;
+}
+
+static inline
+enum lttng_error_code ust_app_open_packets(struct ltt_session *session)
{
return 0;
}
projects / lttng-tools.git / blobdiff