+ LTTNG_ERR_INVALID_TRIGGER = 125, /* Invalid trigger provided. */
+ LTTNG_ERR_TRIGGER_EXISTS = 126, /* Trigger already registered. */
+ LTTNG_ERR_TRIGGER_NOT_FOUND = 127, /* Trigger not found. */
+ LTTNG_ERR_COMMAND_CANCELLED = 128, /* Command cancelled. */