/*
- * Copyright (C) 2017 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ * Copyright (C) 2017 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.
*/
#include <lttng/trigger/trigger.h>
static
void init_notification_thread_command(struct notification_thread_command *cmd)
{
- memset(cmd, 0, sizeof(*cmd));
CDS_INIT_LIST_HEAD(&cmd->cmd_list_node);
lttng_waiter_init(&cmd->reply_waiter);
}
cds_list_add_tail(&cmd->cmd_list_node,
&handle->cmd_queue.list);
/* Wake-up thread. */
- ret = write(lttng_pipe_get_writefd(handle->cmd_queue.event_pipe),
+ ret = lttng_write(lttng_pipe_get_writefd(handle->cmd_queue.event_pipe),
¬ification_counter, sizeof(notification_counter));
- if (ret < 0) {
+ if (ret != sizeof(notification_counter)) {
PERROR("write to notification thread's queue event fd");
/*
* Remove the command from the list so the notification
return -1;
}
+static
+struct notification_thread_command *notification_thread_command_copy(
+ const struct notification_thread_command *original_cmd)
+{
+ struct notification_thread_command *new_cmd;
+
+ new_cmd = zmalloc(sizeof(*new_cmd));
+ if (!new_cmd) {
+ goto end;
+ }
+
+ *new_cmd = *original_cmd;
+ init_notification_thread_command(new_cmd);
+end:
+ return new_cmd;
+}
+
+static
+int run_command_no_wait(struct notification_thread_handle *handle,
+ const struct notification_thread_command *in_cmd)
+{
+ int ret;
+ uint64_t notification_counter = 1;
+ struct notification_thread_command *new_cmd =
+ notification_thread_command_copy(in_cmd);
+
+ if (!new_cmd) {
+ goto error;
+ }
+ new_cmd->is_async = true;
+
+ pthread_mutex_lock(&handle->cmd_queue.lock);
+ /* Add to queue. */
+ cds_list_add_tail(&new_cmd->cmd_list_node,
+ &handle->cmd_queue.list);
+ /* Wake-up thread. */
+ ret = lttng_write(lttng_pipe_get_writefd(handle->cmd_queue.event_pipe),
+ ¬ification_counter, sizeof(notification_counter));
+ if (ret != sizeof(notification_counter)) {
+ PERROR("write to notification thread's queue event fd");
+ /*
+ * Remove the command from the list so the notification
+ * thread does not process it.
+ */
+ cds_list_del(&new_cmd->cmd_list_node);
+ goto error_unlock_queue;
+ }
+ pthread_mutex_unlock(&handle->cmd_queue.lock);
+ return 0;
+error_unlock_queue:
+ free(new_cmd);
+ pthread_mutex_unlock(&handle->cmd_queue.lock);
+error:
+ return -1;
+}
+
enum lttng_error_code notification_thread_command_register_trigger(
struct notification_thread_handle *handle,
struct lttng_trigger *trigger)
{
int ret;
enum lttng_error_code ret_code;
- struct notification_thread_command cmd;
+ struct notification_thread_command cmd = {};
+ assert(trigger);
init_notification_thread_command(&cmd);
cmd.type = NOTIFICATION_COMMAND_TYPE_REGISTER_TRIGGER;
- cmd.parameters.trigger = trigger;
+ lttng_trigger_get(trigger);
+ cmd.parameters.register_trigger.trigger = trigger;
ret = run_command_wait(handle, &cmd);
if (ret) {
enum lttng_error_code notification_thread_command_unregister_trigger(
struct notification_thread_handle *handle,
- struct lttng_trigger *trigger)
+ const struct lttng_trigger *trigger)
{
int ret;
enum lttng_error_code ret_code;
- struct notification_thread_command cmd;
+ struct notification_thread_command cmd = {};
init_notification_thread_command(&cmd);
cmd.type = NOTIFICATION_COMMAND_TYPE_UNREGISTER_TRIGGER;
- cmd.parameters.trigger = trigger;
+ cmd.parameters.unregister_trigger.trigger = trigger;
ret = run_command_wait(handle, &cmd);
if (ret) {
{
int ret;
enum lttng_error_code ret_code;
- struct notification_thread_command cmd;
+ struct notification_thread_command cmd = {};
init_notification_thread_command(&cmd);
cmd.type = NOTIFICATION_COMMAND_TYPE_ADD_CHANNEL;
- cmd.parameters.add_channel.session_name = session_name;
- cmd.parameters.add_channel.uid = uid;
- cmd.parameters.add_channel.gid = gid;
- cmd.parameters.add_channel.channel_name = channel_name;
- cmd.parameters.add_channel.key.key = key;
- cmd.parameters.add_channel.key.domain = domain;
- cmd.parameters.add_channel.capacity = capacity;
+ cmd.parameters.add_channel.session.name = session_name;
+ cmd.parameters.add_channel.session.uid = uid;
+ cmd.parameters.add_channel.session.gid = gid;
+ cmd.parameters.add_channel.channel.name = channel_name;
+ cmd.parameters.add_channel.channel.key = key;
+ cmd.parameters.add_channel.channel.domain = domain;
+ cmd.parameters.add_channel.channel.capacity = capacity;
ret = run_command_wait(handle, &cmd);
if (ret) {
{
int ret;
enum lttng_error_code ret_code;
- struct notification_thread_command cmd;
+ struct notification_thread_command cmd = {};
init_notification_thread_command(&cmd);
return ret_code;
}
+enum lttng_error_code notification_thread_command_session_rotation_ongoing(
+ struct notification_thread_handle *handle,
+ const char *session_name, uid_t uid, gid_t gid,
+ uint64_t trace_archive_chunk_id)
+{
+ int ret;
+ enum lttng_error_code ret_code;
+ struct notification_thread_command cmd = {};
+
+ init_notification_thread_command(&cmd);
+
+ cmd.type = NOTIFICATION_COMMAND_TYPE_SESSION_ROTATION_ONGOING;
+ cmd.parameters.session_rotation.session_name = session_name;
+ cmd.parameters.session_rotation.uid = uid;
+ cmd.parameters.session_rotation.gid = gid;
+ cmd.parameters.session_rotation.trace_archive_chunk_id =
+ trace_archive_chunk_id;
+
+ ret = run_command_wait(handle, &cmd);
+ if (ret) {
+ ret_code = LTTNG_ERR_UNK;
+ goto end;
+ }
+ ret_code = cmd.reply_code;
+end:
+ return ret_code;
+}
+
+enum lttng_error_code notification_thread_command_session_rotation_completed(
+ struct notification_thread_handle *handle,
+ const char *session_name, uid_t uid, gid_t gid,
+ uint64_t trace_archive_chunk_id,
+ struct lttng_trace_archive_location *location)
+{
+ int ret;
+ enum lttng_error_code ret_code;
+ struct notification_thread_command cmd = {};
+
+ init_notification_thread_command(&cmd);
+
+ cmd.type = NOTIFICATION_COMMAND_TYPE_SESSION_ROTATION_COMPLETED;
+ cmd.parameters.session_rotation.session_name = session_name;
+ cmd.parameters.session_rotation.uid = uid;
+ cmd.parameters.session_rotation.gid = gid;
+ cmd.parameters.session_rotation.trace_archive_chunk_id =
+ trace_archive_chunk_id;
+ cmd.parameters.session_rotation.location = location;
+
+ ret = run_command_wait(handle, &cmd);
+ if (ret) {
+ ret_code = LTTNG_ERR_UNK;
+ goto end;
+ }
+ ret_code = cmd.reply_code;
+end:
+ return ret_code;
+}
+
+enum lttng_error_code notification_thread_command_add_tracer_event_source(
+ struct notification_thread_handle *handle,
+ int tracer_event_source_fd,
+ enum lttng_domain_type domain)
+{
+ int ret;
+ enum lttng_error_code ret_code;
+ struct notification_thread_command cmd = {};
+
+ assert(tracer_event_source_fd >= 0);
+
+ init_notification_thread_command(&cmd);
+
+ cmd.type = NOTIFICATION_COMMAND_TYPE_ADD_TRACER_EVENT_SOURCE;
+ cmd.parameters.tracer_event_source.tracer_event_source_fd =
+ tracer_event_source_fd;
+ cmd.parameters.tracer_event_source.domain = domain;
+
+ ret = run_command_wait(handle, &cmd);
+ if (ret) {
+ ret_code = LTTNG_ERR_UNK;
+ goto end;
+ }
+
+ ret_code = cmd.reply_code;
+end:
+ return ret_code;
+}
+
+enum lttng_error_code notification_thread_command_remove_tracer_event_source(
+ struct notification_thread_handle *handle,
+ int tracer_event_source_fd)
+{
+ int ret;
+ enum lttng_error_code ret_code;
+ struct notification_thread_command cmd = {};
+
+ init_notification_thread_command(&cmd);
+
+ cmd.type = NOTIFICATION_COMMAND_TYPE_REMOVE_TRACER_EVENT_SOURCE;
+ cmd.parameters.tracer_event_source.tracer_event_source_fd =
+ tracer_event_source_fd;
+
+ ret = run_command_wait(handle, &cmd);
+ if (ret) {
+ ret_code = LTTNG_ERR_UNK;
+ goto end;
+ }
+
+ ret_code = cmd.reply_code;
+end:
+ return ret_code;
+}
+
+enum lttng_error_code notification_thread_command_list_triggers(
+ struct notification_thread_handle *handle,
+ uid_t uid,
+ struct lttng_triggers **triggers)
+{
+ int ret;
+ enum lttng_error_code ret_code;
+ struct notification_thread_command cmd = {};
+
+ assert(handle);
+ assert(triggers);
+
+ init_notification_thread_command(&cmd);
+
+ cmd.type = NOTIFICATION_COMMAND_TYPE_LIST_TRIGGERS;
+ cmd.parameters.list_triggers.uid = uid;
+
+ ret = run_command_wait(handle, &cmd);
+ if (ret) {
+ ret_code = LTTNG_ERR_UNK;
+ goto end;
+ }
+
+ ret_code = cmd.reply_code;
+ *triggers = cmd.reply.list_triggers.triggers;
+
+end:
+ return ret_code;
+}
+
void notification_thread_command_quit(
struct notification_thread_handle *handle)
{
int ret;
- struct notification_thread_command cmd;
+ struct notification_thread_command cmd = {};
init_notification_thread_command(&cmd);
ret = run_command_wait(handle, &cmd);
assert(!ret && cmd.reply_code == LTTNG_OK);
}
+
+int notification_thread_client_communication_update(
+ struct notification_thread_handle *handle,
+ notification_client_id id,
+ enum client_transmission_status transmission_status)
+{
+ struct notification_thread_command cmd = {};
+
+ init_notification_thread_command(&cmd);
+
+ cmd.type = NOTIFICATION_COMMAND_TYPE_CLIENT_COMMUNICATION_UPDATE;
+ cmd.parameters.client_communication_update.id = id;
+ cmd.parameters.client_communication_update.status = transmission_status;
+ return run_command_no_wait(handle, &cmd);
+}
+
+LTTNG_HIDDEN
+struct lttng_event_notifier_notification *
+lttng_event_notifier_notification_create(uint64_t tracer_token,
+ enum lttng_domain_type domain)
+{
+ struct lttng_event_notifier_notification *notification = NULL;
+
+ assert(domain != LTTNG_DOMAIN_NONE);
+
+ notification = zmalloc(
+ sizeof(struct lttng_event_notifier_notification));
+ if (notification == NULL) {
+ ERR("[notification-thread] Error allocating notification");
+ goto end;
+ }
+
+ notification->tracer_token = tracer_token;
+ notification->type = domain;
+
+end:
+ return notification;
+}
+
+LTTNG_HIDDEN
+void lttng_event_notifier_notification_destroy(
+ struct lttng_event_notifier_notification *notification)
+{
+ if (!notification) {
+ return;
+ }
+
+ free(notification);
+}
projects / lttng-tools.git / blobdiff