#define LTTCOMM_ERR_INDEX(code) (code - LTTCOMM_OK)
enum lttcomm_sessiond_command {
+ KERNEL_CREATE_CHANNEL,
+ KERNEL_CREATE_SESSION,
+ KERNEL_DISABLE_EVENT,
+ KERNEL_ENABLE_EVENT,
+ KERNEL_START_TRACE,
+ KERNEL_STOP_TRACE,
LTTNG_CREATE_SESSION,
LTTNG_DESTROY_SESSION,
LTTNG_FORCE_SUBBUF_SWITCH,
LTTCOMM_NO_TRACEABLE, /* Error for non traceable app */
LTTCOMM_SELECT_SESS, /* Must select a session */
LTTCOMM_EXIST_SESS, /* Session name already exist */
+ LTTCOMM_NO_EVENT, /* No event found */
LTTCOMM_NR, /* Last element */
+ KCONSUMERD_COMMAND_SOCK_READY, /* when kconsumerd command socket ready */
+ KCONSUMERD_SUCCESS_RECV_FD, /* success on receiving fds */
+ KCONSUMERD_ERROR_RECV_FD, /* error on receiving fds */
+ KCONSUMERD_POLL_ERROR, /* Error in polling thread in kconsumerd */
+ KCONSUMERD_POLL_NVAL, /* Poll on closed fd */
+ KCONSUMERD_POLL_HUP, /* All fds have hungup */
+ KCONSUMERD_EXIT_SUCCESS, /* kconsumerd exiting normally */
+ KCONSUMERD_EXIT_FAILURE, /* kconsumerd exiting on error */
+ KCONSUMERD_OUTFD_ERROR, /* error opening the tracefile */
};
/* commands for kconsumerd */
} create_session;
/* Marker data */
struct {
- char channel[NAME_MAX];
- char marker[NAME_MAX];
- } marker;
- /* SET_SOCK_PATH */
+ char event_name[NAME_MAX];
+ } event;
+ /* Create channel kernel */
struct {
- char sock_path[PATH_MAX];
- } sock_path;
- /* SET_SUBBUF_NUM */
- struct {
- unsigned int subbuf_num;
- char channel[NAME_MAX];
- } subbuf_num;
- /* SET_SUBBUF_SIZE */
- struct {
- unsigned int subbuf_size;
- char channel[NAME_MAX];
- } subbuf_size;
+ int overwrite;
+ u64 subbuf_size;
+ u64 num_subbuf;
+ unsigned int switch_timer_interval;
+ unsigned int read_timer_interval;
+ } create_channel;
} u;
};
char path_name[PATH_MAX];
int fd;
u32 state; /* enum lttcomm_kconsumerd_fd_state */
+ unsigned long max_sb_size; /* the subbuffer size for this channel */
};
extern int lttcomm_create_unix_sock(const char *pathname);