void child_trapper_main(zbx_process_t p, zbx_sock_t *s)
{
struct sigaction phan;
zabbix_log( LOG_LEVEL_DEBUG, "In child_trapper_main()");
phan.sa_handler = child_signal_handler;
sigemptyset(&phan.sa_mask);
phan.sa_flags = 0;
sigaction(SIGALRM, &phan, NULL);
zbx_process = p;
DBconnect(ZBX_DB_CONNECT_NORMAL);
for (;;) {
zbx_setproctitle("trapper [waiting for connection]");
if (SUCCEED == zbx_tcp_accept(s)) {
zbx_setproctitle("trapper [processing data]");
process_trapper_child(s);
zbx_tcp_unaccept(s);
} else
zabbix_log(LOG_LEVEL_WARNING, "Trapper failed to accept connection");
}
DBclose();
}
void main_trapper_loop(zbx_sock_t *s)
{
const char *__function_name = "main_trapper_loop";
zabbix_log(LOG_LEVEL_DEBUG, "In %s()", __function_name);
zbx_setproctitle("%s [connecting to the database]", get_process_type_string(process_type));
DBconnect(ZBX_DB_CONNECT_NORMAL);
for (;;)
{
zbx_setproctitle("%s [waiting for connection]", get_process_type_string(process_type));
update_selfmon_counter(ZBX_PROCESS_STATE_IDLE);
if (SUCCEED == zbx_tcp_accept(s))
{
update_selfmon_counter(ZBX_PROCESS_STATE_BUSY);
zbx_setproctitle("%s [processing data]", get_process_type_string(process_type));
process_trapper_child(s);
zbx_tcp_unaccept(s);
}
else
zabbix_log(LOG_LEVEL_WARNING, "Trapper failed to accept connection");
}
}
ZBX_THREAD_ENTRY(trapper_thread, args)
{
double sec = 0.0;
zbx_socket_t s;
process_type = ((zbx_thread_args_t *)args)->process_type;
server_num = ((zbx_thread_args_t *)args)->server_num;
process_num = ((zbx_thread_args_t *)args)->process_num;
zabbix_log(LOG_LEVEL_INFORMATION, "%s #%d started [%s #%d]", get_program_type_string(program_type),
server_num, get_process_type_string(process_type), process_num);
memcpy(&s, (zbx_socket_t *)((zbx_thread_args_t *)args)->args, sizeof(zbx_socket_t));
#if defined(HAVE_POLARSSL) || defined(HAVE_GNUTLS) || defined(HAVE_OPENSSL)
zbx_tls_init_child();
find_psk_in_cache = DCget_psk_by_identity;
#endif
zbx_setproctitle("%s #%d [connecting to the database]", get_process_type_string(process_type), process_num);
DBconnect(ZBX_DB_CONNECT_NORMAL);
for (;;)
{
zbx_handle_log();
zbx_setproctitle("%s #%d [processed data in " ZBX_FS_DBL " sec, waiting for connection]",
get_process_type_string(process_type), process_num, sec);
update_selfmon_counter(ZBX_PROCESS_STATE_IDLE);
/* Trapper has to accept all types of connections it can accept with the specified configuration. */
/* Only after receiving data it is known who has sent them and one can decide to accept or discard */
/* the data. */
if (SUCCEED == zbx_tcp_accept(&s, ZBX_TCP_SEC_TLS_CERT | ZBX_TCP_SEC_TLS_PSK | ZBX_TCP_SEC_UNENCRYPTED))
{
zbx_timespec_t ts;
/* get connection timestamp */
zbx_timespec(&ts);
update_selfmon_counter(ZBX_PROCESS_STATE_BUSY);
zbx_setproctitle("%s #%d [processing data]", get_process_type_string(process_type),
process_num);
sec = zbx_time();
process_trapper_child(&s, &ts);
sec = zbx_time() - sec;
zbx_tcp_unaccept(&s);
}
else if (EINTR != zbx_socket_last_error())
{
zabbix_log(LOG_LEVEL_WARNING, "failed to accept an incoming connection: %s",
zbx_socket_strerror());
}
}
}