et_system_t Struct Reference

Structure containing all ET system information. More...

#include <et_private.h>

Data Fields
int	version
	Major version number of this ET software release.
int	nselects
	Number of selection ints per station (also control ints per event).
int	bitInfo
	Least significant bit = 1 if ET system created by 64 bit executable, and next bit = 1 if ET system is being told to kill itself.
int	asthread
	ET_THREAD_KILL if killing add-station thread, else ET_THREAD_KEEP.
unsigned int	heartbeat
	Heartbeat which periodically increments to indicate ET is alive.
int	hz
	System clock rate in Hz.
int	nstations
	Current number of stations idle or active.
int	ntemps
	Current number of temp events.
int	nprocesses
	Current number of local processes which have opened system.
int	nattachments
	Current number of attachments to stations in system.
int	port
	TCP server port.
et_stat_id	stat_head
	Index to head of linked list of used stations (not storing this as a pointer makes for an awkward linked list, but it survives mapping the shared memory to a different spot).
et_stat_id	stat_tail
	Index to tail of linked list of used stations (not storing this as a pointer makes for an awkward linked list, but it survives mapping the shared memory to a different spot).
pid_t	mainpid
	Unix pid of ET system.
void *	pmap
	Pointer to mapped mem in ET system's process (used for user-called routines to read/write pointers correctly from shared mem).
pthread_mutex_t	mutex
	Pthread mutex to protect system data during changes.
pthread_mutex_t	stat_mutex
	Pthread mutex to protect station data during changes.
pthread_mutex_t	statadd_mutex
	Pthread mutex used to add stations one at a time.
pthread_cond_t	statadd
	Pthread condition variable used to add new stations.
pthread_cond_t	statdone
	Pthread condition variable used to signal end of station creation.
pthread_t	tid_hb
	System heartbeat thread id.
pthread_t	tid_hm
	System heartmonitor thread id.
pthread_t	tid_as
	System add station thread id.
pthread_t	tid_srv
	ET TCP server thread id.
pthread_t	tid_mul
	Id of thread spawning broad/multicast listening threads.
char	host [ET_MAXHOSTNAMELEN]
	Host of the ET system.
struct et_proc	proc [ET_PROCESSES_MAX]
	Array of info on processes.
struct et_attach	attach [ET_ATTACHMENTS_MAX]
	Array of info on attachments.
et_sys_config	config
	Configuration parameters used to create ET system.

Detailed Description

Structure containing all ET system information.

Field Documentation

int et_system_t::asthread

ET_THREAD_KILL if killing add-station thread, else ET_THREAD_KEEP.

Referenced by et_system_close().

struct et_attach et_system_t::attach[ET_ATTACHMENTS_MAX] [read]

Array of info on attachments.

Referenced by et_attach_geteventsdump(), et_attach_geteventsget(), et_attach_geteventsmake(), et_attach_geteventsput(), et_event_dump(), et_event_get(), et_event_new(), et_event_put(), et_events_dump(), et_events_get(), et_events_new(), et_events_new_group(), et_events_put(), et_station_attach(), et_station_detach(), et_wakeup_all(), and et_wakeup_attachment().

int et_system_t::bitInfo

Least significant bit = 1 if ET system created by 64 bit executable, and next bit = 1 if ET system is being told to kill itself.

et_sys_config et_system_t::config

Configuration parameters used to create ET system.

Referenced by et_attach_geteventsdump(), et_attach_geteventsget(), et_attach_geteventsmake(), et_attach_geteventsput(), et_event_new(), et_events_new(), et_events_new_group(), et_station_attach(), et_station_config_check(), et_station_create_at(), et_station_detach(), et_station_exists(), et_station_getattachments(), et_station_getblock(), et_station_getclass(), et_station_getcue(), et_station_getfunction(), et_station_getinputcount(), et_station_getlib(), et_station_getoutputcount(), et_station_getposition(), et_station_getprescale(), et_station_getrestore(), et_station_getselect(), et_station_getselectwords(), et_station_getstatus(), et_station_getuser(), et_station_isattached(), et_station_remove(), et_station_setblock(), et_station_setcue(), et_station_setposition(), et_station_setprescale(), et_station_setrestore(), et_station_setselectwords(), et_station_setuser(), et_system_close(), et_system_getattsmax(), et_system_getprocsmax(), et_system_getstationsmax(), et_system_gettempsmax(), et_system_setgroup(), et_wakeup_all(), and et_wakeup_attachment().

unsigned int et_system_t::heartbeat

Heartbeat which periodically increments to indicate ET is alive.

Referenced by et_system_getheartbeat(), and et_system_start().

char et_system_t::host[ET_MAXHOSTNAMELEN]

Host of the ET system.

int et_system_t::hz

System clock rate in Hz.

Referenced by et_event_new(), et_events_new(), et_events_new_group(), and et_system_start().

pid_t et_system_t::mainpid

Unix pid of ET system.

Referenced by et_system_getpid().

pthread_mutex_t et_system_t::mutex

Pthread mutex to protect system data during changes.

int et_system_t::nattachments

Current number of attachments to stations in system.

Referenced by et_station_attach(), et_station_detach(), and et_system_getattachments().

int et_system_t::nprocesses

Current number of local processes which have opened system.

Referenced by et_system_getprocs().

int et_system_t::nselects

Number of selection ints per station (also control ints per event).

int et_system_t::nstations

Current number of stations idle or active.

Referenced by et_station_create_at(), et_station_remove(), and et_system_getstations().

int et_system_t::ntemps

Current number of temp events.

Referenced by et_event_dump(), et_event_new(), et_events_dump(), et_events_new(), et_events_new_group(), and et_system_gettemps().

void* et_system_t::pmap

Pointer to mapped mem in ET system's process (used for user-called routines to read/write pointers correctly from shared mem).

Referenced by et_system_start().

int et_system_t::port

TCP server port.

struct et_proc et_system_t::proc[ET_PROCESSES_MAX] [read]

Array of info on processes.

Referenced by et_station_attach(), and et_station_detach().

et_stat_id et_system_t::stat_head

Index to head of linked list of used stations (not storing this as a pointer makes for an awkward linked list, but it survives mapping the shared memory to a different spot).

pthread_mutex_t et_system_t::stat_mutex

Pthread mutex to protect station data during changes.

et_stat_id et_system_t::stat_tail

Index to tail of linked list of used stations (not storing this as a pointer makes for an awkward linked list, but it survives mapping the shared memory to a different spot).

pthread_cond_t et_system_t::statadd

Pthread condition variable used to add new stations.

Referenced by et_station_create_at(), and et_system_close().

pthread_mutex_t et_system_t::statadd_mutex

Pthread mutex used to add stations one at a time.

Referenced by et_station_create_at().

pthread_cond_t et_system_t::statdone

Pthread condition variable used to signal end of station creation.

Referenced by et_station_create_at().

pthread_t et_system_t::tid_as

System add station thread id.

pthread_t et_system_t::tid_hb