#include "utils.h"
#include "trace-ust.h"
#include "timer.h"
+#include "cmd.h"
struct ltt_session_destroy_notifier_element {
ltt_session_destroy_notifier notifier;
goto end_no_move;
}
-static
-bool output_supports_trace_chunks(const struct ltt_session *session)
+bool session_output_supports_trace_chunks(const struct ltt_session *session)
{
- if (session->consumer->type == CONSUMER_DST_LOCAL) {
+ const struct consumer_output *output = session->kernel_session ?
+ session->kernel_session->consumer :
+ session->ust_session->consumer;
+
+ if (output->type == CONSUMER_DST_LOCAL) {
return true;
} else {
- struct consumer_output *output;
-
- if (session->ust_session) {
- output = session->ust_session->consumer;
- } else if (session->kernel_session) {
- output = session->kernel_session->consumer;
- } else {
- abort();
- }
-
if (output->relay_major_version > 2) {
return true;
} else if (output->relay_major_version == 2 &&
}
struct lttng_trace_chunk *session_create_new_trace_chunk(
- struct ltt_session *session,
+ const struct ltt_session *session,
+ const struct consumer_output *consumer_output_override,
const char *session_base_path_override,
const char *chunk_name_override)
{
struct lttng_trace_chunk *trace_chunk = NULL;
enum lttng_trace_chunk_status chunk_status;
const time_t chunk_creation_ts = time(NULL);
- const bool is_local_trace =
- session->consumer->type == CONSUMER_DST_LOCAL;
- const char *base_path = session_base_path_override ? :
- session_get_base_path(session);
+ bool is_local_trace;
+ const char *base_path;
struct lttng_directory_handle session_output_directory;
const struct lttng_credentials session_credentials = {
.uid = session->uid,
.gid = session->gid,
};
uint64_t next_chunk_id;
+ const struct consumer_output *output;
+
+ if (consumer_output_override) {
+ output = consumer_output_override;
+ } else {
+ assert(session->ust_session || session->kernel_session);
+ output = session->ust_session ?
+ session->ust_session->consumer :
+ session->kernel_session->consumer;
+ }
+
+ is_local_trace = output->type == CONSUMER_DST_LOCAL;
+ base_path = session_base_path_override ? :
+ consumer_output_get_base_path(output);
if (chunk_creation_ts == (time_t) -1) {
PERROR("Failed to sample time while creation session \"%s\" trace chunk",
goto error;
}
- if (!output_supports_trace_chunks(session)) {
- goto end;
- }
next_chunk_id = session->most_recent_chunk_id.is_set ?
session->most_recent_chunk_id.value + 1 : 0;
}
int session_close_trace_chunk(const struct ltt_session *session,
- struct lttng_trace_chunk *trace_chunk)
+ struct lttng_trace_chunk *trace_chunk,
+ const enum lttng_trace_chunk_command_type *close_command)
{
int ret = 0;
bool error_occurred = false;
enum lttng_trace_chunk_status chunk_status;
const time_t chunk_close_timestamp = time(NULL);
+ if (close_command) {
+ chunk_status = lttng_trace_chunk_set_close_command(
+ trace_chunk, *close_command);
+ if (chunk_status != LTTNG_TRACE_CHUNK_STATUS_OK) {
+ ret = -1;
+ goto end;
+ }
+ }
+
if (chunk_close_timestamp == (time_t) -1) {
ERR("Failed to sample the close timestamp of the current trace chunk of session \"%s\"",
session->name);
}
if (session->ust_session) {
+ const uint64_t relayd_id =
+ session->ust_session->consumer->net_seq_index;
+
cds_lfht_for_each_entry(
session->ust_session->consumer->socks->ht,
&iter, socket, node.node) {
pthread_mutex_lock(socket->lock);
ret = consumer_close_trace_chunk(socket,
- session->consumer->net_seq_index,
+ relayd_id,
session->id,
trace_chunk);
pthread_mutex_unlock(socket->lock);
}
}
if (session->kernel_session) {
+ const uint64_t relayd_id =
+ session->kernel_session->consumer->net_seq_index;
+
cds_lfht_for_each_entry(
session->kernel_session->consumer->socks->ht,
&iter, socket, node.node) {
pthread_mutex_lock(socket->lock);
ret = consumer_close_trace_chunk(socket,
- session->consumer->net_seq_index,
+ relayd_id,
session->id,
trace_chunk);
pthread_mutex_unlock(socket->lock);
struct ltt_ust_session *usess;
struct ltt_kernel_session *ksess;
struct ltt_session *session = container_of(ref, typeof(*session), ref);
+ const bool session_published = session->published;
assert(!session->chunk_being_archived);
usess = session->ust_session;
ksess = session->kernel_session;
- session_notify_destruction(session);
- lttng_dynamic_array_reset(&session->destroy_notifiers);
- if (session->current_trace_chunk) {
- ret = session_close_trace_chunk(session, session->current_trace_chunk);
- if (ret) {
- ERR("Failed to close the current trace chunk of session \"%s\" during its release",
- session->name);
- }
- ret = _session_set_trace_chunk_no_lock_check(session, NULL, NULL);
- if (ret) {
- ERR("Failed to release the current trace chunk of session \"%s\" during its release",
- session->name);
- }
- }
-
- /* Clean kernel session teardown */
+ /* Clean kernel session teardown, keeping data for destroy notifier. */
kernel_destroy_session(ksess);
- session->kernel_session = NULL;
- /* UST session teardown */
+ /* UST session teardown, keeping data for destroy notifier. */
if (usess) {
/* Close any relayd session */
consumer_output_send_destroy_relayd(usess->consumer);
ERR("Error in ust_app_destroy_trace_all");
}
- /* Clean up the rest. */
+ /* Clean up the rest, keeping destroy notifier data. */
trace_ust_destroy_session(usess);
- session->ust_session = NULL;
}
/*
pthread_mutex_destroy(&session->lock);
- if (session->published) {
+ if (session_published) {
ASSERT_LOCKED(ltt_session_list.lock);
del_session_list(session);
del_session_ht(session);
- pthread_cond_broadcast(<t_session_list.removal_cond);
}
+ session_notify_destruction(session);
+
+ kernel_free_session(ksess);
+ session->kernel_session = NULL;
+ if (usess) {
+ trace_ust_free_session(usess);
+ session->ust_session = NULL;
+ }
+ lttng_dynamic_array_reset(&session->destroy_notifiers);
free(session->last_archived_chunk_name);
+ free(session->base_path);
free(session);
+ if (session_published) {
+ /*
+ * Broadcast after free-ing to ensure the memory is
+ * reclaimed before the main thread exits.
+ */
+ pthread_cond_broadcast(<t_session_list.removal_cond);
+ }
}
/*
* Session list lock must be held by the caller.
*/
enum lttng_error_code session_create(const char *name, uid_t uid, gid_t gid,
- struct ltt_session **out_session)
+ const char *base_path, struct ltt_session **out_session)
{
int ret;
enum lttng_error_code ret_code;
}
}
+ if (base_path) {
+ new_session->base_path = strdup(base_path);
+ if (!new_session->base_path) {
+ ERR("Failed to allocate base path of session \"%s\"",
+ name);
+ ret_code = LTTNG_ERR_SESSION_FAIL;
+ goto error;
+ }
+ }
+
new_session->uid = uid;
new_session->gid = gid;
projects / lttng-tools.git / blobdiff