2 * Copyright (C) 1995-2005, Index Data ApS
3 * See the file LICENSE for details.
5 * NT threaded server code by
6 * Chas Woodfield, Fretwell Downing Informatics.
8 * $Id: statserv.c,v 1.24 2005-03-03 23:16:20 adam Exp $
13 * \brief Implements GFS logic
26 #include <sys/types.h>
39 #include <libxml/parser.h>
40 #include <libxml/tree.h>
53 #include <yaz/comstack.h>
54 #include <yaz/tcpip.h>
55 #include <yaz/options.h>
57 #include <yaz/xmosi.h>
62 #include <yaz/statserv.h>
64 static IOCHAN pListener = NULL;
66 static struct gfs_server *gfs_server_list = 0;
67 static struct gfs_listen *gfs_listen_list = 0;
68 static NMEM gfs_nmem = 0;
70 static char *me = "statserver"; /* log prefix */
71 static char *programname="statserver"; /* full program name */
73 static pthread_key_t current_control_tls;
74 static int init_control_tls = 0;
76 static statserv_options_block *current_control_block = 0;
82 #define STAT_DEFAULT_LOG_LEVEL "none,fatal,warn,log,server,session,request"
83 /* the 'none' clears yaz' own default settings, including [log] */
85 int check_options(int argc, char **argv);
86 statserv_options_block control_block = {
88 0, /* threaded mode */
89 0, /* one shot (single session) */
90 YLOG_DEFAULT_LEVEL, /* log level */
92 "", /* diagnostic output to stderr */
93 "tcp:@:9999", /* default listener port */
94 PROTO_Z3950, /* default application protocol */
95 15, /* idle timeout (minutes) */
96 1024*1024, /* maximum PDU size (approx.) to allow */
97 "default-config", /* configuration name to pass to backend */
99 0, /* bend_start handler */
100 0, /* bend_stop handler */
101 check_options, /* Default routine, for checking the run-time arguments */
104 0, /* default value for inet deamon */
105 0, /* handle (for service, etc) */
106 0, /* bend_init handle */
107 0, /* bend_close handle */
109 "Z39.50 Server", /* NT Service Name */
110 "Server", /* NT application Name */
111 "", /* NT Service Dependencies */
112 "Z39.50 Server", /* NT Service Display Name */
114 0, /* SOAP handlers */
116 0, /* background daemon */
117 "", /* SSL certificate filename */
118 "" /* XML config filename */
121 static int max_sessions = 0;
123 static int logbits_set = 0;
124 static int log_session = 0;
125 static int log_server = 0;
127 /** get_logbits sets global loglevel bits */
128 static void get_logbits(int force)
129 { /* needs to be called after parsing cmd-line args that can set loglevels!*/
130 if (force || !logbits_set)
133 log_session = yaz_log_module_level("session");
134 log_server = yaz_log_module_level("server");
139 static int add_listener(char *where, int listen_id);
142 static xmlDocPtr xml_config_doc = 0;
146 static xmlNodePtr xml_config_get_root()
151 ptr = xmlDocGetRootElement(xml_config_doc);
152 if (!ptr || ptr->type != XML_ELEMENT_NODE ||
153 strcmp((const char *) ptr->name, "yazgfs"))
155 yaz_log(YLOG_WARN, "Bad/missing root element for config %s",
156 control_block.xml_config);
166 static char *nmem_dup_xml_content(NMEM n, xmlNodePtr ptr)
170 int len = 1; /* start with 1, because of trailing 0 */
172 int first = 1; /* whitespace lead flag .. */
173 /* determine length */
174 for (p = ptr; p; p = p->next)
176 if (p->type == XML_TEXT_NODE)
177 len += strlen(p->content);
179 /* now allocate for the string */
180 str = nmem_malloc(n, len);
181 *str = '\0'; /* so we can use strcat */
182 for (p = ptr; p; p = p->next)
184 if (p->type == XML_TEXT_NODE)
189 while(*cp && isspace(*cp))
192 first = 0; /* reset if we got non-whitespace out */
194 strcat(str, cp); /* append */
197 /* remove trailing whitespace */
198 cp = strlen(str) + str;
199 while ((char*) cp != str && isspace(cp[-1]))
202 /* return resulting string */
207 static struct gfs_server * gfs_server_new()
209 struct gfs_server *n = nmem_malloc(gfs_nmem, sizeof(*n));
210 memcpy(&n->cb, &control_block, sizeof(control_block));
214 n->cql_transform = 0;
215 n->server_node_ptr = 0;
219 static struct gfs_listen * gfs_listen_new(const char *id,
222 struct gfs_listen *n = nmem_malloc(gfs_nmem, sizeof(*n));
224 n->id = nmem_strdup(gfs_nmem, id);
228 n->address = nmem_strdup(gfs_nmem, address);
232 int control_association(association *assoc, const char *host, int force_open)
234 char vhost[128], *cp;
237 strncpy(vhost, host, 127);
239 cp = strchr(vhost, ':');
244 if (control_block.xml_config[0])
246 struct gfs_server *gfs;
247 for (gfs = gfs_server_list; gfs; gfs = gfs->next)
249 int listen_match = 0;
251 if ( !gfs->host || (host && gfs->host && !strcmp(host, gfs->host)))
253 if (!gfs->listen_ref ||
254 gfs->listen_ref == assoc->client_chan->chan_id)
256 if (listen_match && host_match)
259 (assoc->last_control != &gfs->cb && assoc->backend))
261 statserv_setcontrol(assoc->last_control);
262 if (assoc->backend && assoc->init)
263 (assoc->last_control->bend_close)(assoc->backend);
268 assoc->cql_transform = gfs->cql_transform;
269 assoc->server_node_ptr = gfs->server_node_ptr;
270 assoc->last_control = &gfs->cb;
271 statserv_setcontrol(&gfs->cb);
275 statserv_setcontrol(0);
276 assoc->last_control = 0;
277 assoc->cql_transform = 0;
278 assoc->server_node_ptr = 0;
283 statserv_setcontrol(&control_block);
284 assoc->last_control = &control_block;
285 assoc->cql_transform = 0;
286 assoc->server_node_ptr = 0;
291 static void xml_config_read()
293 struct gfs_server **gfsp = &gfs_server_list;
294 struct gfs_listen **gfslp = &gfs_listen_list;
296 xmlNodePtr ptr = xml_config_get_root();
300 for (ptr = ptr->children; ptr; ptr = ptr->next)
302 if (ptr->type != XML_ELEMENT_NODE)
304 struct _xmlAttr *attr = ptr->properties;
305 if (!strcmp((const char *) ptr->name, "listen"))
308 <listen id="listenerid">tcp:@:9999</listen>
311 const char *address =
312 nmem_dup_xml_content(gfs_nmem, ptr->children);
313 for ( ; attr; attr = attr->next)
314 if (!strcmp(attr->name, "id")
315 && attr->children && attr->children->type == XML_TEXT_NODE)
316 id = nmem_dup_xml_content(gfs_nmem, attr->children);
319 *gfslp = gfs_listen_new(id, address);
320 gfslp = &(*gfslp)->next;
321 *gfslp = 0; /* make listener list consistent for search */
324 else if (!strcmp((const char *) ptr->name, "server"))
326 xmlNodePtr ptr_server = ptr;
328 const char *listenref = 0;
330 for ( ; attr; attr = attr->next)
331 if (!strcmp(attr->name, "listenref")
332 && attr->children && attr->children->type == XML_TEXT_NODE)
333 listenref = nmem_dup_xml_content(gfs_nmem, attr->children);
334 *gfsp = gfs_server_new();
335 (*gfsp)->server_node_ptr = ptr_server;
339 struct gfs_listen *gl = gfs_listen_list;
340 for (id_no = 1; gl; gl = gl->next, id_no++)
341 if (gl->id && !strcmp(gl->id, listenref))
343 (*gfsp)->listen_ref = id_no;
347 yaz_log(YLOG_WARN, "Non-existent listenref '%s' in server "
348 "config element", listenref);
350 for (ptr = ptr_server->children; ptr; ptr = ptr->next)
352 if (ptr->type != XML_ELEMENT_NODE)
354 if (!strcmp((const char *) ptr->name, "host"))
356 (*gfsp)->host = nmem_dup_xml_content(gfs_nmem,
359 if (!strcmp((const char *) ptr->name, "config"))
361 strcpy((*gfsp)->cb.configname,
362 nmem_dup_xml_content(gfs_nmem, ptr->children));
364 if (!strcmp((const char *) ptr->name, "cql2rpn"))
366 (*gfsp)->cql_transform = cql_transform_open_fname(
367 nmem_dup_xml_content(gfs_nmem, ptr->children)
371 gfsp = &(*gfsp)->next;
378 static void xml_config_open()
380 gfs_nmem = nmem_create();
382 if (control_block.xml_config[0] == '\0')
387 xml_config_doc = xmlParseFile(control_block.xml_config);
390 yaz_log(YLOG_WARN, "Could not parse %s", control_block.xml_config);
399 static void xml_config_close()
404 xmlFreeDoc(xml_config_doc);
409 nmem_destroy(gfs_nmem);
412 static void xml_config_add_listeners()
414 struct gfs_listen *gfs = gfs_listen_list;
417 for (id_no = 1; gfs; gfs = gfs->next, id_no++)
420 add_listener(gfs->address, id_no);
424 static void xml_config_bend_start()
426 if (control_block.xml_config[0])
428 struct gfs_server *gfs = gfs_server_list;
429 for (; gfs; gfs = gfs->next)
431 yaz_log(YLOG_DEBUG, "xml_config_bend_start config=%s",
433 statserv_setcontrol(&gfs->cb);
434 if (control_block.bend_start)
435 (control_block.bend_start)(&gfs->cb);
440 yaz_log(YLOG_DEBUG, "xml_config_bend_start default config");
441 statserv_setcontrol(&control_block);
442 if (control_block.bend_start)
443 (*control_block.bend_start)(&control_block);
448 static void xml_config_bend_stop()
450 if (control_block.xml_config[0])
452 struct gfs_server *gfs = gfs_server_list;
453 for (; gfs; gfs = gfs->next)
455 yaz_log(YLOG_DEBUG, "xml_config_bend_stop config=%s",
457 statserv_setcontrol(&gfs->cb);
458 if (control_block.bend_stop)
459 (control_block.bend_stop)(&gfs->cb);
464 yaz_log(YLOG_DEBUG, "xml_config_bend_stop default config");
465 statserv_setcontrol(&control_block);
466 if (control_block.bend_stop)
467 (*control_block.bend_stop)(&control_block);
472 * handle incoming connect requests.
473 * The dynamic mode is a bit tricky mostly because we want to avoid
474 * doing all of the listening and accepting in the parent - it's
479 typedef struct _ThreadList ThreadList;
488 static ThreadList *pFirstThread;
489 static CRITICAL_SECTION Thread_CritSect;
490 static BOOL bInitialized = FALSE;
492 static void ThreadList_Initialize()
494 /* Initialize the critical Sections */
495 InitializeCriticalSection(&Thread_CritSect);
497 /* Set the first thraed */
500 /* we have been initialized */
504 static void statserv_add(HANDLE hThread, IOCHAN pIOChannel)
506 /* Only one thread can go through this section at a time */
507 EnterCriticalSection(&Thread_CritSect);
510 /* Lets create our new object */
511 ThreadList *pNewThread = (ThreadList *)malloc(sizeof(ThreadList));
512 pNewThread->hThread = hThread;
513 pNewThread->pIOChannel = pIOChannel;
514 pNewThread->pNext = pFirstThread;
515 pFirstThread = pNewThread;
517 /* Lets let somebody else create a new object now */
518 LeaveCriticalSection(&Thread_CritSect);
522 void statserv_remove(IOCHAN pIOChannel)
524 /* Only one thread can go through this section at a time */
525 EnterCriticalSection(&Thread_CritSect);
528 ThreadList *pCurrentThread = pFirstThread;
529 ThreadList *pNextThread;
530 ThreadList *pPrevThread =NULL;
532 /* Step through all the threads */
533 for (; pCurrentThread != NULL; pCurrentThread = pNextThread)
535 /* We only need to compare on the IO Channel */
536 if (pCurrentThread->pIOChannel == pIOChannel)
538 /* We have found the thread we want to delete */
539 /* First of all reset the next pointers */
540 if (pPrevThread == NULL)
541 pFirstThread = pCurrentThread->pNext;
543 pPrevThread->pNext = pCurrentThread->pNext;
545 /* All we need todo now is delete the memory */
546 free(pCurrentThread);
548 /* No need to look at any more threads */
553 /* We need to look at another thread */
554 pNextThread = pCurrentThread->pNext;
555 pPrevThread = pCurrentThread;
559 /* Lets let somebody else remove an object now */
560 LeaveCriticalSection(&Thread_CritSect);
564 /* WIN32 statserv_closedown */
565 void statserv_closedown()
567 /* Shouldn't do anything if we are not initialized */
571 HANDLE *pThreadHandles = NULL;
573 /* We need to stop threads adding and removing while we */
574 /* start the closedown process */
575 EnterCriticalSection(&Thread_CritSect);
578 /* We have exclusive access to the thread stuff now */
579 /* Y didn't i use a semaphore - Oh well never mind */
580 ThreadList *pCurrentThread = pFirstThread;
582 /* Before we do anything else, we need to shutdown the listener */
583 if (pListener != NULL)
584 iochan_destroy(pListener);
586 for (; pCurrentThread != NULL; pCurrentThread = pCurrentThread->pNext)
588 /* Just destroy the IOCHAN, that should do the trick */
589 iochan_destroy(pCurrentThread->pIOChannel);
590 closesocket(pCurrentThread->pIOChannel->fd);
592 /* Keep a running count of our handles */
598 HANDLE *pCurrentHandle ;
600 /* Allocate the thread handle array */
601 pThreadHandles = (HANDLE *)malloc(sizeof(HANDLE) * iHandles);
602 pCurrentHandle = pThreadHandles;
604 for (pCurrentThread = pFirstThread;
605 pCurrentThread != NULL;
606 pCurrentThread = pCurrentThread->pNext, pCurrentHandle++)
608 /* Just the handle */
609 *pCurrentHandle = pCurrentThread->hThread;
613 /* We can now leave the critical section */
614 LeaveCriticalSection(&Thread_CritSect);
617 /* Now we can really do something */
620 yaz_log(log_server, "waiting for %d to die", iHandles);
621 /* This will now wait, until all the threads close */
622 WaitForMultipleObjects(iHandles, pThreadHandles, TRUE, INFINITE);
624 /* Free the memory we allocated for the handle array */
625 free(pThreadHandles);
628 xml_config_bend_stop();
629 /* No longer require the critical section, since all threads are dead */
630 DeleteCriticalSection(&Thread_CritSect);
635 void __cdecl event_loop_thread (IOCHAN iochan)
637 event_loop (&iochan);
641 static void listener(IOCHAN h, int event)
643 COMSTACK line = (COMSTACK) iochan_getdata(h);
644 IOCHAN parent_chan = line->user;
649 if (event == EVENT_INPUT)
651 if ((res = cs_listen(line, 0, 0)) < 0)
653 yaz_log(YLOG_FATAL, "cs_listen failed");
658 yaz_log(YLOG_DEBUG, "listen ok");
659 iochan_setevent(h, EVENT_OUTPUT);
660 iochan_setflags(h, EVENT_OUTPUT | EVENT_EXCEPT); /* set up for acpt */
662 else if (event == EVENT_OUTPUT)
664 COMSTACK new_line = cs_accept(line);
670 yaz_log(YLOG_FATAL, "Accept failed.");
671 iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT);
674 yaz_log(YLOG_DEBUG, "Accept ok");
676 if (!(new_chan = iochan_create(cs_fileno(new_line), ir_session,
677 EVENT_INPUT, parent_chan->port)))
679 yaz_log(YLOG_FATAL, "Failed to create iochan");
684 yaz_log(YLOG_DEBUG, "Creating association");
685 if (!(newas = create_association(new_chan, new_line,
686 control_block.apdufile)))
688 yaz_log(YLOG_FATAL, "Failed to create new assoc.");
692 newas->cs_get_mask = EVENT_INPUT;
693 newas->cs_put_mask = 0;
694 newas->cs_accept_mask = 0;
696 yaz_log(YLOG_DEBUG, "Setting timeout %d", control_block.idle_timeout);
697 iochan_setdata(new_chan, newas);
698 iochan_settimeout(new_chan, 60);
700 /* Now what we need todo is create a new thread with this iochan as
702 newHandle = (HANDLE) _beginthread(event_loop_thread, 0, new_chan);
703 if (newHandle == (HANDLE) -1)
706 yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to create new thread.");
710 /* We successfully created the thread, so add it to the list */
711 statserv_add(newHandle, new_chan);
713 yaz_log(YLOG_DEBUG, "Created new thread, id = %ld iochan %p",(long) newHandle, new_chan);
714 iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset listener */
718 yaz_log(YLOG_FATAL, "Bad event on listener.");
724 int statserv_must_terminate(void)
731 static int term_flag = 0;
732 /* To save having an #ifdef in event_loop we need to
733 define this empty function
735 int statserv_must_terminate(void)
740 void statserv_remove(IOCHAN pIOChannel)
744 void statserv_closedown()
748 xml_config_bend_stop();
749 for (p = pListener; p; p = p->next)
754 #if YAZ_POSIX_THREADS
755 pthread_key_delete(current_control_tls);
759 void sigterm(int sig)
764 static void *new_session (void *vp);
765 static int no_sessions = 0;
768 static void listener(IOCHAN h, int event)
770 COMSTACK line = (COMSTACK) iochan_getdata(h);
773 if (event == EVENT_INPUT)
776 if ((res = cs_listen_check(line, 0, 0, control_block.check_ip,
777 control_block.daemon_name)) < 0)
779 yaz_log(YLOG_WARN|YLOG_ERRNO, "cs_listen failed");
784 yaz_log(YLOG_WARN, "cs_listen incomplete");
787 new_line = cs_accept(line);
790 yaz_log(YLOG_FATAL, "Accept failed.");
791 iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset listener */
795 yaz_log(log_session, "Connect from %s", cs_addrstr(new_line));
798 if (control_block.dynamic)
800 if ((res = fork()) < 0)
802 yaz_log(YLOG_FATAL|YLOG_ERRNO, "fork");
806 else if (res == 0) /* child */
811 for (pp = pListener; pp; pp = iochan_getnext(pp))
813 COMSTACK l = (COMSTACK)iochan_getdata(pp);
817 sprintf(nbuf, "%s(%d)", me, no_sessions);
818 yaz_log_init(control_block.loglevel, nbuf, 0);
819 /* ensure that bend_stop is not called when each child exits -
820 only for the main process .. */
821 control_block.bend_stop = 0;
830 if (control_block.threads)
832 #if YAZ_POSIX_THREADS
833 pthread_t child_thread;
834 pthread_create (&child_thread, 0, new_session, new_line);
835 pthread_detach (child_thread);
836 #elif YAZ_GNU_THREADS
840 attr = pth_attr_new ();
841 pth_attr_set (attr, PTH_ATTR_JOINABLE, FALSE);
842 pth_attr_set (attr, PTH_ATTR_STACK_SIZE, 32*1024);
843 pth_attr_set (attr, PTH_ATTR_NAME, "session");
844 yaz_log (YLOG_DEBUG, "pth_spawn begin");
845 child_thread = pth_spawn (attr, new_session, new_line);
846 yaz_log (YLOG_DEBUG, "pth_spawn finish");
847 pth_attr_destroy (attr);
849 new_session(new_line);
853 new_session(new_line);
855 else if (event == EVENT_TIMEOUT)
857 yaz_log(log_server, "Shutting down listener.");
862 yaz_log(YLOG_FATAL, "Bad event on listener.");
867 static void *new_session (void *vp)
872 COMSTACK new_line = (COMSTACK) vp;
873 IOCHAN parent_chan = new_line->user;
875 unsigned cs_get_mask, cs_accept_mask, mask =
876 ((new_line->io_pending & CS_WANT_WRITE) ? EVENT_OUTPUT : 0) |
877 ((new_line->io_pending & CS_WANT_READ) ? EVENT_INPUT : 0);
881 cs_accept_mask = mask; /* accept didn't complete */
886 cs_accept_mask = 0; /* accept completed. */
887 cs_get_mask = mask = EVENT_INPUT;
890 if (!(new_chan = iochan_create(cs_fileno(new_line), ir_session, mask,
891 parent_chan->chan_id)))
893 yaz_log(YLOG_FATAL, "Failed to create iochan");
896 if (!(newas = create_association(new_chan, new_line,
897 control_block.apdufile)))
899 yaz_log(YLOG_FATAL, "Failed to create new assoc.");
902 newas->cs_accept_mask = cs_accept_mask;
903 newas->cs_get_mask = cs_get_mask;
905 iochan_setdata(new_chan, newas);
906 iochan_settimeout(new_chan, 60);
908 a = cs_addrstr(new_line);
912 yaz_log(log_session, "Starting session %d from %s (pid=%ld)",
913 no_sessions, a ? a : "[Unknown]", (long) getpid());
914 if (max_sessions && no_sessions >= max_sessions)
915 control_block.one_shot = 1;
916 if (control_block.threads)
918 event_loop(&new_chan);
922 new_chan->next = pListener;
923 pListener = new_chan;
931 static void inetd_connection(int what)
938 if ((line = cs_createbysocket(0, tcpip_type, 0, what)))
940 if ((chan = iochan_create(cs_fileno(line), ir_session, EVENT_INPUT,
943 if ((assoc = create_association(chan, line,
944 control_block.apdufile)))
946 iochan_setdata(chan, assoc);
947 iochan_settimeout(chan, 60);
948 addr = cs_addrstr(line);
949 yaz_log(log_session, "Inetd association from %s",
950 addr ? addr : "[UNKNOWN]");
951 assoc->cs_get_mask = EVENT_INPUT;
955 yaz_log(YLOG_FATAL, "Failed to create association structure");
957 chan->next = pListener;
962 yaz_log(YLOG_FATAL, "Failed to create iochan");
967 yaz_log(YLOG_ERRNO|YLOG_FATAL, "Failed to create comstack on socket 0");
972 * Set up a listening endpoint, and give it to the event-handler.
974 static int add_listener(char *where, int listen_id)
981 if (control_block.dynamic)
983 else if (control_block.threads)
988 yaz_log(log_server, "Adding %s listener on %s id=%d", mode, where,
991 l = cs_create_host(where, 2, &ap);
994 yaz_log(YLOG_FATAL, "Failed to listen on %s", where);
997 if (*control_block.cert_fname)
998 cs_set_ssl_certificate_file(l, control_block.cert_fname);
1000 if (cs_bind(l, ap, CS_SERVER) < 0)
1002 yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to bind to %s", where);
1006 if (!(lst = iochan_create(cs_fileno(l), listener, EVENT_INPUT |
1007 EVENT_EXCEPT, listen_id)))
1009 yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to create IOCHAN-type");
1013 iochan_setdata(lst, l); /* user-defined data for listener is COMSTACK */
1014 l->user = lst; /* user-defined data for COMSTACK is listener chan */
1016 /* Add listener to chain */
1017 lst->next = pListener;
1023 /* UNIX only (for windows we don't need to catch the signals) */
1024 static void catchchld(int num)
1026 while (waitpid(-1, 0, WNOHANG) > 0)
1028 signal(SIGCHLD, catchchld);
1032 statserv_options_block *statserv_getcontrol(void)
1034 #if YAZ_POSIX_THREADS
1035 if (init_control_tls)
1036 return pthread_getspecific(current_control_tls);
1038 return &control_block;
1040 if (current_control_block)
1041 return current_control_block;
1042 return &control_block;
1046 void statserv_setcontrol(statserv_options_block *block)
1048 #if YAZ_POSIX_THREADS
1049 if (init_control_tls)
1050 pthread_setspecific(current_control_tls, block);
1052 current_control_block = block;
1056 static void statserv_reset(void)
1060 int statserv_start(int argc, char **argv)
1064 /* We need to initialize the thread list */
1065 ThreadList_Initialize();
1075 if ((me = strrchr (argv[0], sep)))
1076 me++; /* get the basename */
1079 programname = argv[0];
1081 if (control_block.options_func(argc, argv))
1084 #if YAZ_POSIX_THREADS
1085 init_control_tls = 1;
1086 pthread_key_create(¤t_control_tls, 0);
1091 xml_config_bend_start();
1094 xml_config_add_listeners();
1096 yaz_log (log_server, "Starting server %s", me);
1097 if (!pListener && *control_block.default_listen)
1098 add_listener(control_block.default_listen, 0);
1101 if (control_block.inetd)
1102 inetd_connection(control_block.default_proto);
1106 if (control_block.background)
1108 /* create pipe so that parent waits until child has created
1112 yaz_log(YLOG_FATAL|YLOG_ERRNO, "pipe");
1126 int res = read(hand[0], dummy, 1);
1127 if (res < 0 && yaz_errno() != EINTR)
1129 yaz_log(YLOG_FATAL|YLOG_ERRNO, "read fork handshake");
1146 open("/dev/null", O_RDWR);
1149 xml_config_add_listeners();
1151 if (!pListener && *control_block.default_listen)
1152 add_listener(control_block.default_listen, 0);
1157 if (*control_block.pid_fname)
1159 FILE *f = fopen(control_block.pid_fname, "w");
1162 yaz_log(YLOG_FATAL|YLOG_ERRNO, "Couldn't create %s",
1163 control_block.pid_fname);
1166 fprintf(f, "%ld", (long) getpid());
1170 if (control_block.background)
1174 yaz_log (log_server, "Starting server %s pid=%ld", programname,
1177 sigset_t sigs_to_block;
1179 sigemptyset(&sigs_to_block);
1180 sigaddset (&sigs_to_block, SIGTERM);
1181 pthread_sigmask (SIG_BLOCK, &sigs_to_block, 0);
1184 if (control_block.dynamic)
1185 signal(SIGCHLD, catchchld);
1187 signal (SIGPIPE, SIG_IGN);
1188 signal (SIGTERM, sigterm);
1189 if (*control_block.setuid)
1193 if (!(pw = getpwnam(control_block.setuid)))
1195 yaz_log(YLOG_FATAL, "%s: Unknown user", control_block.setuid);
1198 if (setuid(pw->pw_uid) < 0)
1200 yaz_log(YLOG_FATAL|YLOG_ERRNO, "setuid");
1206 if (pListener == NULL)
1208 yaz_log(YLOG_DEBUG, "Entering event loop.");
1209 return event_loop(&pListener);
1212 static void option_copy(char *dst, const char *src)
1214 strncpy(dst, src ? src : "", 127);
1218 int check_options(int argc, char **argv)
1223 /* set default log level */
1224 control_block.loglevel = yaz_log_mask_str(STAT_DEFAULT_LOG_LEVEL);
1225 yaz_log_init_level(control_block.loglevel);
1227 while ((ret = options("1a:iszSTl:v:u:c:w:t:k:d:A:p:DC:f:",
1228 argv, argc, &arg)) != -2)
1233 if (add_listener(arg, 0))
1234 return 1; /* failed to create listener */
1237 control_block.one_shot = 1;
1238 control_block.dynamic = 0;
1241 control_block.default_proto = PROTO_Z3950;
1244 fprintf (stderr, "%s: SR protocol no longer supported\n", me);
1248 control_block.dynamic = 0;
1251 #if YAZ_POSIX_THREADS
1252 control_block.dynamic = 0;
1253 control_block.threads = 1;
1254 #elif YAZ_GNU_THREADS
1255 control_block.dynamic = 0;
1256 control_block.threads = 1;
1258 fprintf(stderr, "%s: Threaded mode not available.\n", me);
1263 option_copy(control_block.logfile, arg);
1264 yaz_log_init(control_block.loglevel, me, control_block.logfile);
1267 control_block.loglevel =
1268 yaz_log_mask_str_x(arg,control_block.loglevel);
1269 yaz_log_init(control_block.loglevel, me, control_block.logfile);
1272 option_copy(control_block.apdufile, arg);
1275 option_copy(control_block.setuid, arg);
1278 option_copy(control_block.configname, arg);
1281 option_copy(control_block.cert_fname, arg);
1284 option_copy(control_block.daemon_name, arg);
1287 if (!arg || !(r = atoi(arg)))
1289 fprintf(stderr, "%s: Specify positive timeout for -t.\n", me);
1292 control_block.idle_timeout = r;
1295 if (!arg || !(r = atoi(arg)))
1297 fprintf(stderr, "%s: Specify positive size for -k.\n", me);
1300 control_block.maxrecordsize = r * 1024;
1303 control_block.inetd = 1;
1313 max_sessions = atoi(arg);
1316 option_copy(control_block.pid_fname, arg);
1320 option_copy(control_block.xml_config, arg);
1322 fprintf(stderr, "%s: Option -f unsupported since YAZ is compiled without Libxml2 support\n", me);
1327 control_block.background = 1;
1330 fprintf(stderr, "Usage: %s [ -a <pdufile> -v <loglevel>"
1331 " -l <logfile> -u <user> -c <config> -t <minutes>"
1332 " -k <kilobytes> -d <daemon> -p <pidfile> -C certfile"
1333 " -ziDST1 -w <directory> <listener-addr>... ]\n", me);
1342 typedef struct _Args
1348 static Args ArgDetails;
1350 /* name of the executable */
1351 #define SZAPPNAME "server"
1353 /* list of service dependencies - "dep1\0dep2\0\0" */
1354 #define SZDEPENDENCIES ""
1356 int statserv_main(int argc, char **argv,
1357 bend_initresult *(*bend_init)(bend_initrequest *r),
1358 void (*bend_close)(void *handle))
1360 struct statserv_options_block *cb = &control_block;
1361 cb->bend_init = bend_init;
1362 cb->bend_close = bend_close;
1364 /* Lets setup the Arg structure */
1365 ArgDetails.argc = argc;
1366 ArgDetails.argv = argv;
1368 /* Now setup the service with the service controller */
1369 SetupService(argc, argv, &ArgDetails, SZAPPNAME,
1370 cb->service_name, /* internal service name */
1371 cb->service_display_name, /* displayed name */
1376 int StartAppService(void *pHandle, int argc, char **argv)
1378 /* Initializes the App */
1382 void RunAppService(void *pHandle)
1384 Args *pArgs = (Args *)pHandle;
1386 /* Starts the app running */
1387 statserv_start(pArgs->argc, pArgs->argv);
1390 void StopAppService(void *pHandle)
1393 statserv_closedown();
1399 int statserv_main(int argc, char **argv,
1400 bend_initresult *(*bend_init)(bend_initrequest *r),
1401 void (*bend_close)(void *handle))
1405 control_block.bend_init = bend_init;
1406 control_block.bend_close = bend_close;
1408 ret = statserv_start (argc, argv);
1409 statserv_closedown ();