The function ba_get_next_event() is passed the following arguments:
event |
Pointer to a structure of type ba_event_t, which contains information about the next event in the FIFO buffer. |
blocking |
Integer that sets blocking or non-blocking mode. A zero value enables blocking; any non-zero value enables non-blocking. |
Structures of type ba_event_t are defined as follows:
typedef struct { u_int ba_event_type; u_int ba_event_drops; union { ba_name_t ba_event_iface; ba_name_t ba_event_info; } ba_event_config; struct { ba_name_t ba_flow_iface; /* no suffix */ uint_t ba_num_flows; ba_flow_event_t ba_event_flows[BA_EVENT_MAX_FLOWS]; } ba_event_flow; ba_class_stats_t ba_event_stats; ba_filter_event_t ba_event_filter; ba_cl_filter_event_tba_event_cl_filter; } ba_event_union; } ba_event_t;
The elements of structures of type ba_event_t are set as follows:
ba_event_type |
Set to identify the event type that has occurred. See Table 3-1 for possible values. |
ba_event_iface |
Set to identify the interface on which the event has occurred. It is set to the name of the reconfigured interface for events of type BA_EVENT_CONFIG_STARTING and BA_EVENT_CONFIG_ENDING. It is left blank for events of type BA_EVENT_DAEMON_ENDING. |
ba_event_info |
Reserved for future use. |
Structures of type ba_flow_event_t are defined as follows:
typedef struct { ba_name_t classname_in; ba_name_t classname_out; struct in_addr ip_local; struct in_addr ip_remote; uchar_t protocol; ushort_t port_local; ushort_t port_remote; uchar_t tos_sent_in; uchar_t tos_sent_out; uint_t npackets_in; uint_t nbytes_in; uint_t npackets_out; uint_t nbytes_out; uint_t url_length; union { uchar_t *url; u_longlong_t url_pad;} url_union; hrtime_t firstseen_in; /* timestamp of first packet sent (ns)*/ hrtime_t lastseen_in; /* timestamp of last packet sent (ns) */ hrtime_t firstseen_out;/* timestamp of first packet sent (ns)*/ hrtime_t lastseen_out; /* timestamp of last packet sent (ns) */ } ba_flow_event_t; #define ba_flow_url url_union.url