SoW-2020-0002: Trace Hit Counters: trigger error reporting integration

[lttng-tools.git] / src / bin / lttng-sessiond / notification-thread-commands.c

diff --git a/src/bin/lttng-sessiond/notification-thread-commands.c b/src/bin/lttng-sessiond/notification-thread-commands.c
index dc03e6a2df2fd9e7eab8634b5ece6ebb557c91de..3069c57d78ed4607342bb237d4a358dd244da572 100644 (file)
--- a/src/bin/lttng-sessiond/notification-thread-commands.c
+++ b/src/bin/lttng-sessiond/notification-thread-commands.c
@@ -268,6 +268,112 @@ end:
        return ret_code;
 }
 
+enum lttng_error_code notification_thread_command_add_application(
+               struct notification_thread_handle *handle,
+               int fd,
+               enum lttng_domain_type domain)
+{
+       int ret;
+       enum lttng_error_code ret_code;
+       struct notification_thread_command cmd = {};
+
+       assert(!(fd < 0));
+
+       init_notification_thread_command(&cmd);
+
+       cmd.type = NOTIFICATION_COMMAND_TYPE_ADD_APPLICATION;
+       cmd.parameters.application.read_side_trigger_event_application_pipe = fd;
+       cmd.parameters.application.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_application(
+               struct notification_thread_handle *handle,
+               int 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_APPLICATION;
+       cmd.parameters.application.read_side_trigger_event_application_pipe = 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_get_tokens(
+               struct notification_thread_handle *handle,
+               struct lttng_triggers **tokens_triggers)
+{
+       int ret;
+       enum lttng_error_code ret_code;
+       struct notification_thread_command cmd = {};
+
+       assert(handle);
+       assert(tokens_triggers);
+
+       init_notification_thread_command(&cmd);
+
+       cmd.type = NOTIFICATION_COMMAND_TYPE_GET_TOKENS;
+
+       ret = run_command_wait(handle, &cmd);
+       if (ret) {
+               ret_code = LTTNG_ERR_UNK;
+               goto end;
+       }
+       ret_code = cmd.reply_code;
+       *tokens_triggers = cmd.reply.get_tokens.triggers;
+
+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)
 {
@@ -295,3 +401,52 @@ int notification_thread_client_communication_update(
        cmd.parameters.client_communication_update.status = transmission_status;
        return run_command_no_wait(handle, &cmd);
 }
+
+/*
+ * Takes ownership of the payload if present.
+ */
+LTTNG_HIDDEN
+struct lttng_trigger_notification *lttng_trigger_notification_create(
+               uint64_t id,
+               enum lttng_domain_type domain,
+               char *payload,
+               size_t payload_size)
+{
+       struct lttng_trigger_notification *notification = NULL;
+
+       assert(domain != LTTNG_DOMAIN_NONE);
+
+       if (payload) {
+               assert(payload_size > 0);
+       } else {
+               assert(payload_size == 0);
+       }
+
+       notification = zmalloc(sizeof(struct lttng_trigger_notification));
+       if (notification == NULL) {
+               ERR("[notification-thread] Error allocating notification ");
+               goto end;
+       }
+
+       notification->id = id;
+       notification->type = domain;
+       notification->capture_buffer = payload;
+       notification->capture_buf_size = payload_size;
+
+end:
+       return notification;
+}
+
+LTTNG_HIDDEN
+void lttng_trigger_notification_destroy(
+               struct lttng_trigger_notification *notification)
+{
+       if (!notification) {
+               return;
+       }
+
+       if(notification->capture_buffer) {
+               free(notification->capture_buffer);
+       }
+       free(notification);
+}