void Stat_handle_message( sys_scatter *scat )
{
sp_time now;
sp_time delta;
packet_header *pack_ptr;
proc p;
int ret;
pack_ptr = (packet_header *)scat->elements[0].buf;
if( ! ( pack_ptr->memb_id.proc_id == 15051963 && Conf_id_in_conf( Conf_ref(), pack_ptr->proc_id ) != -1 ) )
{
Alarm( STATUS, "Stat_handle_message: Illegal monitor request\n");
return;
}
now = E_get_time();
delta = E_sub_time( now, Start_time );
GlobalStatus.sec = delta.sec;
DL_send( Report_channel, pack_ptr->proc_id, pack_ptr->seq, &Report_scat );
ret = Conf_proc_by_id( pack_ptr->proc_id, &p );
if( ret < 0 )
Alarm( STATUS,
"Stat_handle_message: sent status to Monitor at %d\n",
pack_ptr->proc_id );
else Alarm( STATUS,
"Stat_handle_message: sent status to Monitor at %s\n",
p.name );
}
void FC_handle_message( sys_scatter *scat )
{
int16 *cur_fc_buf;
packet_header *pack_ptr;
proc dummy_proc;
int my_index;
int16 temp_window,temp_personal_window;
configuration *Cn;
Cn = Conf_ref();
pack_ptr = (packet_header *)scat->elements[0].buf;
if ( ! Conf_get_dangerous_monitor_state() ) {
Alarm( FLOW_CONTROL, "FC_handle_message: Request to change flow control from (%d.%d.%d.%d) denied. Monitor in safe mode\n", IP1(pack_ptr->proc_id), IP2(pack_ptr->proc_id), IP3(pack_ptr->proc_id), IP4(pack_ptr->proc_id) );
return;
}
if( ! ( pack_ptr->memb_id.proc_id == 15051963 && Conf_id_in_conf( Cn, pack_ptr->proc_id ) != -1 ) )
{
Alarm( FLOW_CONTROL,
"FC_handle_message: Illegal monitor request\n");
return;
}
cur_fc_buf = (int16 *)scat->elements[1].buf;
my_index = Conf_proc_by_id( Conf_my().id, &dummy_proc );
if( Same_endian( pack_ptr->type ) ) {
temp_window = cur_fc_buf[Conf_num_procs( Cn )];
temp_personal_window = cur_fc_buf[my_index];
}else{
temp_window = Flip_int16( cur_fc_buf[Conf_num_procs( Cn )] );
temp_personal_window = Flip_int16( cur_fc_buf[my_index] );
}
if( temp_window != -1 ) Window = temp_window;
if( temp_personal_window != -1 ) Personal_window = temp_personal_window;
GlobalStatus.window = Window;
GlobalStatus.personal_window = Personal_window;
Alarm( FLOW_CONTROL,
"FC_handle_message: Got monitor mess, Window %d Personal %d\n",
Window, Personal_window );
}
/* Basic algorithm:
* 1) have configuration code load new conf file and check for modifications to conf.
* 2) If only add/sub of daemons, then initiate membership change with token_loss and return;
* 3) else, then set Conf_reload_state, create singleton partition, and schedule token_loss.
* 4) When membership completes in Discard_packets() cleanup partition and probe for new members.
*/
void Prot_initiate_conf_reload( int code, void *data )
{
bool need_memb_partition;
int16 singleton_partition[MAX_PROCS_RING];
int i;
if (Memb_state() != OP ) {
/* This is a race condition, that the Prot_initiate_conf_reload was scheduled when OP state,
* but another membership occured before it was executed.
* The membership system will requeue this function when it reaches OP state again.
*/
return;
}
/* Disable queueing of this function when OP state reached in membership */
Prot_clear_need_conf_reload();
need_memb_partition = Conf_reload_initiate();
/* Signal all subsystems to update Conf and My strucures */
Net_signal_conf_reload();
Memb_signal_conf_reload();
Sess_signal_conf_reload();
/* update protocol varialbes with new conf */
My = Conf_my();
My_index = Conf_proc_by_id( My.id, &My );
if (need_memb_partition) {
/* make partition */
for ( i = 0 ; i < Conf_num_procs( Conf_ref() ); i++ )
{
singleton_partition[i] = i;
}
Net_set_partition(singleton_partition);
Conf_reload_singleton_state_begin();
}
E_queue( Memb_token_loss, 0, NULL, Zero_timeout );
}
