#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <time.h>
#include <urcu/list.h>
#include "lttngerr.h"
static void add_session_list(struct ltt_session *ls);
static void del_session_list(struct ltt_session *ls);
-/* Init session's list */
-static struct ltt_session_list ltt_session_list = {
+/* Init global session list */
+struct ltt_session_list ltt_session_list = {
.head = CDS_LIST_HEAD_INIT(ltt_session_list.head),
};
+/*
+ * get_session_list
+ *
+ * Return a pointer to the session list.
+ */
+struct ltt_session_list *get_session_list(void)
+{
+ return <t_session_list;
+}
+
/*
* get_session_count
*
}
}
-/*
- * find_session_by_uuid
- *
- * Return a ltt_session structure ptr that matches the uuid.
- */
-struct ltt_session *find_session_by_uuid(uuid_t session_id)
-{
- int found = 0;
- struct ltt_session *iter;
-
- /* Sanity check for NULL session_id */
- if (uuid_is_null(session_id)) {
- goto end;
- }
-
- cds_list_for_each_entry(iter, <t_session_list.head, list) {
- if (uuid_compare(iter->uuid, session_id) == 0) {
- found = 1;
- break;
- }
- }
-
-end:
- if (!found) {
- iter = NULL;
- }
- return iter;
-}
-
/*
* find_session_by_name
*
* Return -1 if no session is found.
* On success, return 1;
*/
-int destroy_session(uuid_t *uuid)
+int destroy_session(char *name)
{
int found = -1;
struct ltt_session *iter;
cds_list_for_each_entry(iter, <t_session_list.head, list) {
- if (uuid_compare(iter->uuid, *uuid) == 0) {
+ if (strcmp(iter->name, name) == 0) {
DBG("Destroying session %s", iter->name);
del_session_list(iter);
free(iter);
/*
* create_session
*
- * Create a brand new session and add it to the
- * global session list.
+ * Create a brand new session and add it to the global session list.
*/
-int create_session(char *name, uuid_t *session_id)
+int create_session(char *name, char *path)
{
+ int ret;
+ char date_time[NAME_MAX];
struct ltt_session *new_session;
-
- DBG("Creating session %s", name);
+ time_t rawtime;
+ struct tm *timeinfo;
new_session = find_session_by_name(name);
if (new_session != NULL) {
- goto error;
+ ret = -EEXIST;
+ goto error_exist;
}
/* Allocate session data structure */
new_session = malloc(sizeof(struct ltt_session));
if (new_session == NULL) {
perror("malloc");
- goto error_mem;
+ ret = -ENOMEM;
+ goto error_malloc;
}
+ /* Define session name */
if (name != NULL) {
if (asprintf(&new_session->name, "%s", name) < 0) {
- goto error_mem;
+ ret = -ENOMEM;
+ goto error_asprintf;
}
} else {
- /* Generate session name based on the session count */
- if (asprintf(&new_session->name, "%s%d", "lttng-", session_count) < 0) {
- goto error_mem;
- }
+ ERR("No session name given");
+ ret = -1;
+ goto error;
}
- /* UUID generation */
- uuid_generate(new_session->uuid);
- uuid_copy(*session_id, new_session->uuid);
+ /* Define session system path */
+ if (path != NULL) {
+ if (strstr(name, "auto-") == NULL) {
+ time(&rawtime);
+ timeinfo = localtime(&rawtime);
+ strftime(date_time, sizeof(date_time), "-%Y%m%d-%H%M%S", timeinfo);
+ } else {
+ date_time[0] = '\0';
+ }
+
+ if (asprintf(&new_session->path, "%s/%s%s", path, name, date_time) < 0) {
+ ret = -ENOMEM;
+ goto error_asprintf;
+ }
+ } else {
+ ERR("No session path given");
+ ret = -1;
+ goto error;
+ }
- /* Set consumer (identifier) to 0. This means that there is
+ /*
+ * Set consumer (identifier) to 0. This means that there is
* NO consumer attach to that session yet.
*/
new_session->ust_consumer = 0;
- new_session->kernel_consumer = 0;
+
+ /* Init kernel session */
+ new_session->kernel_session = NULL;
/* Init list */
CDS_INIT_LIST_HEAD(&new_session->ust_traces);
- CDS_INIT_LIST_HEAD(&new_session->kernel_traces);
/* Set trace list counter */
new_session->ust_trace_count = 0;
- new_session->kern_trace_count = 0;
/* Add new session to the global session list */
add_session_list(new_session);
+ DBG("Tracing session %s created in %s", name, new_session->path);
+
return 0;
error:
- return -1;
+error_asprintf:
+ if (new_session != NULL) {
+ free(new_session);
+ }
-error_mem:
- return -ENOMEM;
+error_exist:
+error_malloc:
+ return ret;
}
/*
* get_lttng_session
*
- * Iterate over the global session list and
- * fill the lttng_session array.
+ * Iterate over the global session list and fill the lttng_session array.
*/
-void get_lttng_session(struct lttng_session *lt)
+void get_lttng_session(struct lttng_session *sessions)
{
int i = 0;
struct ltt_session *iter;
* the control struct in the buffer.
*/
cds_list_for_each_entry(iter, <t_session_list.head, list) {
- /* Copy name and uuid */
- uuid_copy(lsess.uuid, iter->uuid);
+ strncpy(lsess.path, iter->path, sizeof(lsess.path));
+ lsess.path[sizeof(lsess.path) - 1] = '\0';
strncpy(lsess.name, iter->name, sizeof(lsess.name));
lsess.name[sizeof(lsess.name) - 1] = '\0';
- memcpy(<[i], &lsess, sizeof(lsess));
+ memcpy(&sessions[i], &lsess, sizeof(lsess));
i++;
/* Reset struct for next pass */
memset(&lsess, 0, sizeof(lsess));