#ifndef _LTT_SESSION_H
#define _LTT_SESSION_H
+#include <limits.h>
#include <urcu/list.h>
+#include <common/hashtable/hashtable.h>
+
+#include "snapshot.h"
#include "trace-kernel.h"
struct ltt_ust_session;
* Session unique ID generator. The session list lock MUST be
* upon update and read of this counter.
*/
- unsigned int next_uuid;
+ uint64_t next_uuid;
/* Linked list head */
struct cds_list_head head;
*/
struct ltt_session {
char name[NAME_MAX];
+ char hostname[HOST_NAME_MAX]; /* Local hostname. */
struct ltt_kernel_session *kernel_session;
struct ltt_ust_session *ust_session;
/*
*/
pthread_mutex_t lock;
struct cds_list_head list;
- int enabled; /* enabled/started flag */
- unsigned int id; /* session unique identifier */
+ uint64_t id; /* session unique identifier */
/* UID/GID of the user owning the session */
uid_t uid;
gid_t gid;
*/
struct consumer_output *consumer;
- /* Did a start command occured before the kern/ust session creation? */
- unsigned int started;
+ /* Did at least ONE start command has been triggered?. */
+ unsigned int has_been_started:1;
+ /*
+ * Is the session active? Start trace command sets this to 1 and the stop
+ * command reset it to 0.
+ */
+ unsigned int active:1;
+
+ /* Snapshot representation in a session. */
+ struct snapshot snapshot;
+ /* Indicate if the session has to output the traces or not. */
+ unsigned int output_traces;
+ /*
+ * This session is in snapshot mode. This means that every channel enabled
+ * will be set in overwrite mode and mmap. It is considered exclusively for
+ * snapshot purposes.
+ */
+ unsigned int snapshot_mode;
+ /*
+ * Timer set when the session is created for live reading.
+ */
+ unsigned int live_timer;
+ /*
+ * Path where to keep the shared memory files.
+ */
+ char shm_path[PATH_MAX];
+ /*
+ * Node in ltt_sessions_ht_by_id.
+ */
+ struct lttng_ht_node_u64 node;
};
/* Prototypes */
void session_unlock(struct ltt_session *session);
void session_unlock_list(void);
-struct ltt_session *session_find_by_name(char *name);
+struct ltt_session *session_find_by_name(const char *name);
+struct ltt_session *session_find_by_id(uint64_t id);
struct ltt_session_list *session_get_list(void);
int session_access_ok(struct ltt_session *session, uid_t uid, gid_t gid);