/****** sge_client_ijs/stop_ijs_server() ***************************************
* NAME
* stop_ijs_server() -- stops the commlib server for the builtin
* interactive job support
*
* SYNOPSIS
* int stop_ijs_server(COMM_HANDLE **phandle, dstring *p_err_msg)
*
* FUNCTION
* Stops the commlib server for the commlib connection between the shepherd
* of the interactive job (qrsh/qlogin) and the qrsh/qlogin command.
* Over this connectin the stdin/stdout/stderr input/output is transferred.
*
* INPUTS
* COMM_HANDLE **phandle - Pointer to the COMM server handle. Gets set to
* NULL in this function.
* dstring *p_err_msg - Contains the error reason in case of error.
*
* RESULT
* int - 0: OK
* 1: Invalid Parameter: phandle = NULL
* 2: General error shutting down the COMM server,
* see p_err_msg for details
*
* NOTES
* MT-NOTE: stop_ijs_server() is not MT safe
*
* SEE ALSO
* sge_client_ijs/start_ijs_server()
* sge_client_ijs/run_ijs_server()
* sge_client_ijs/force_ijs_server_shutdown()
*******************************************************************************/
int stop_ijs_server(COMM_HANDLE **phandle, dstring *p_err_msg)
{
int ret = 0;
DENTER(TOP_LAYER, "stop_ijs_server");
if (phandle == NULL) {
ret = 1;
} else if (*phandle != NULL) {
cl_com_set_error_func(NULL);
#if 0
cl_log_list_set_log_level(cl_com_get_log_list(), CL_LOG_OFF);
#endif
cl_com_ignore_timeouts(CL_TRUE);
DPRINTF(("shut down the connection from our side\n"));
ret = cl_commlib_shutdown_handle(*phandle, CL_FALSE);
if (ret != CL_RETVAL_OK) {
sge_dstring_sprintf(p_err_msg, "error shutting down the connection: %s",
cl_get_error_text(ret));
ret = 2;
}
*phandle = NULL;
}
DRETURN(ret);
}
/*---------------------------------------------------------------*/
void sighandler_client(
int sig
) {
/* thread_signal_receiver = pthread_self(); */
if (sig == SIGPIPE || sig == SIGHUP) {
return;
}
/* shutdown all sockets */
do_shutdown = 1;
cl_com_ignore_timeouts(CL_TRUE);
}
extern int main(int argc, char** argv)
{
struct sigaction sa;
cl_com_handle_t* handle = NULL;
cl_com_message_t* message = NULL;
cl_com_endpoint_t* sender = NULL;
#if 0
cl_com_endpoint_t* clients[10] = { NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL };
#endif
int i;
unsigned long max_connections;
if (argc != 4) {
printf("please enter debug level, port and nr. of max connections\n");
exit(1);
}
/* setup signalhandling */
memset(&sa, 0, sizeof(sa));
sa.sa_handler = sighandler_server; /* one handler for all signals */
sigemptyset(&sa.sa_mask);
sigaction(SIGINT, &sa, NULL);
sigaction(SIGTERM, &sa, NULL);
sigaction(SIGHUP, &sa, NULL);
sigaction(SIGPIPE, &sa, NULL);
printf("commlib setup ...\n");
cl_com_setup_commlib(CL_RW_THREAD, (cl_log_t)atoi(argv[1]), NULL);
printf("setting up service on port %d\n", atoi(argv[2]) );
handle=cl_com_create_handle(NULL,CL_CT_TCP,CL_CM_CT_MESSAGE , CL_TRUE, atoi(argv[2]) , CL_TCP_DEFAULT,"server", 1, 2, 0 );
if (handle == NULL) {
printf("could not get handle\n");
exit(-1);
}
cl_com_get_service_port(handle,&i),
printf("server running on host \"%s\", port %d, component name is \"%s\", id is %ld\n",
handle->local->comp_host,
i,
handle->local->comp_name,
handle->local->comp_id);
cl_com_set_max_connections(handle,atoi(argv[3]));
cl_com_get_max_connections(handle,&max_connections);
printf("max open connections is set to %lu\n", max_connections);
printf("enable max connection close\n");
cl_com_set_max_connection_close_mode(handle, CL_ON_MAX_COUNT_CLOSE_AUTOCLOSE_CLIENTS);
while(do_shutdown != 1) {
unsigned long mid;
int ret_val;
struct timeval now;
CL_LOG(CL_LOG_INFO,"main()");
gettimeofday(&now,NULL);
cl_commlib_trigger(handle, 1);
ret_val = cl_commlib_receive_message(handle,NULL, NULL, 0, CL_FALSE, 0, &message, &sender);
if (message != NULL ) {
ret_val = cl_commlib_send_message(handle,
sender->comp_host,
sender->comp_name,
sender->comp_id, CL_MIH_MAT_NAK,
&message->message,
message->message_length,
&mid, message->message_id,0,
CL_FALSE, CL_FALSE);
if (ret_val != CL_RETVAL_OK) {
/*
printf("cl_commlib_send_message() returned: %s\n",cl_get_error_text(ret_val));
*/
}
/* printf("received message from \"%s\": size of message: %ld\n", sender->comp_host, message->message_length); */
cl_com_free_message(&message);
cl_com_free_endpoint(&sender);
message = NULL;
}
}
cl_com_ignore_timeouts(CL_TRUE);
cl_com_get_ignore_timeouts_flag();
printf("shutting down server ...\n");
handle = cl_com_get_handle( "server", 1 );
if (handle == NULL) {
printf("could not find handle\n");
exit(1);
} else {
printf("found handle\n");
}
while ( cl_commlib_shutdown_handle(handle, CL_TRUE) == CL_RETVAL_MESSAGE_IN_BUFFER) {
message = NULL;
cl_commlib_receive_message(handle, NULL, NULL, 0, CL_FALSE, 0, &message, &sender);
if (message != NULL) {
printf("ignoring message from \"%s\": size of message: %ld\n", sender->comp_host, message->message_length);
cl_com_free_message(&message);
cl_com_free_endpoint(&sender);
message = NULL;
} else {
break;
}
}
printf("commlib cleanup ...\n");
cl_com_cleanup_commlib();
printf("main done\n");
return 0;
}
