Annotation of libwww/Library/src/HTHost.c, revision 2.24
2.1 frystyk 1: /* HTHost.c
2: ** REMOTE HOST INFORMATION
3: **
4: ** (c) COPYRIGHT MIT 1995.
5: ** Please first read the full copyright statement in the file COPYRIGH.
2.24 ! frystyk 6: ** @(#) $Id: HTHost.c,v 2.23 1997/01/11 10:21:45 eric Exp $
2.1 frystyk 7: **
8: ** This object manages the information that we know about a remote host.
9: ** This can for example be what type of host it is, and what version
10: ** it is using. We also keep track of persistent connections
11: **
12: ** April 96 HFN Written
13: */
14:
15: /* Library include files */
16: #include "sysdep.h"
17: #include "WWWUtil.h"
18: #include "HTParse.h"
19: #include "HTAlert.h"
20: #include "HTError.h"
21: #include "HTNetMan.h"
22: #include "HTTrans.h"
2.13 frystyk 23: #include "HTDNS.h"
24: #include "HTTPUtil.h"
25: #include "HTTCP.h"
2.1 frystyk 26: #include "HTHost.h" /* Implemented here */
2.13 frystyk 27: #include "HTHstMan.h"
2.1 frystyk 28:
29: #define HOST_TIMEOUT 43200L /* Default host timeout is 12 h */
30: #define TCP_TIMEOUT 3600L /* Default TCP timeout i 1 h */
2.19 frystyk 31: #define MAX_PIPES 50 /* maximum number of pipelined requests */
2.24 ! frystyk 32: #define MAX_HOST_RECOVER 3 /* Max number of auto recovery */
2.1 frystyk 33:
2.13 frystyk 34: struct _HTInputStream {
35: const HTInputStreamClass * isa;
2.1 frystyk 36: };
37:
2.13 frystyk 38: PRIVATE int HostEvent(SOCKET soc, void * pVoid, HTEventType type);
39:
40: /* Type definitions and global variables etc. local to this module */
2.1 frystyk 41: PRIVATE time_t HostTimeout = HOST_TIMEOUT; /* Timeout on host entries */
42: PRIVATE time_t TCPTimeout = TCP_TIMEOUT; /* Timeout on persistent channels */
43:
2.8 frystyk 44: PRIVATE HTList ** HostTable = NULL;
45: PRIVATE HTList * PendHost = NULL; /* List of pending host elements */
2.1 frystyk 46:
2.13 frystyk 47: PRIVATE int EventTimeout = -1; /* Global Host event timeout */
48:
2.1 frystyk 49: /* ------------------------------------------------------------------------- */
50:
51: PRIVATE void free_object (HTHost * me)
52: {
53: if (me) {
54: HT_FREE(me->hostname);
55: HT_FREE(me->type);
2.12 frystyk 56: HT_FREE(me->server);
57: HT_FREE(me->user_agent);
58: HT_FREE(me->range_units);
2.3 eric 59: if (me->channel) {
2.5 eric 60: HTChannel_delete(me->channel, HT_OK);
2.3 eric 61: me->channel = NULL;
62: }
2.18 eric 63: {
64: int i;
65: for (i = 0; i < HTEvent_TYPES; i++)
66: HTEvent_delete(me->events[i]);
67: }
2.8 frystyk 68: HTList_delete(me->pipeline);
69: HTList_delete(me->pending);
2.1 frystyk 70: HT_FREE(me);
71: }
72: }
73:
74: PRIVATE BOOL delete_object (HTList * list, HTHost * me)
75: {
2.2 frystyk 76: if (CORE_TRACE) HTTrace("Host info... object %p from list %p\n", me, list);
2.1 frystyk 77: HTList_removeObject(list, (void *) me);
78: free_object(me);
79: return YES;
80: }
81:
2.13 frystyk 82: PRIVATE BOOL isLastInPipe (HTHost * host, HTNet * net)
83: {
84: return HTList_lastObject(host->pipeline) == net;
85: }
86:
87: /*
88: ** HostEvent - host event manager - recieves events from the event
89: ** manager and dispatches them to the client net objects by calling the
90: ** net object's cbf.
91: **
92: */
93: PRIVATE int HostEvent (SOCKET soc, void * pVoid, HTEventType type)
94: {
95: HTHost * host = (HTHost *)pVoid;
96:
2.18 eric 97: if (type == HTEvent_READ || type == HTEvent_CLOSE) {
2.13 frystyk 98: HTNet * targetNet;
99:
100: /* call the first net object */
101: do {
102: int ret;
103: targetNet = (HTNet *)HTList_firstObject(host->pipeline);
104: if (targetNet) {
105: if (CORE_TRACE)
2.14 frystyk 106: HTTrace(HTHIDE("Host Event.. READ passed to %s.\n"),
2.13 frystyk 107: HTHIDE(HTAnchor_physical(HTRequest_anchor(HTNet_request(targetNet)))));
108: if ((ret = (*targetNet->event.cbf)(HTChannel_socket(host->channel),
109: targetNet->event.param, type)) != HT_OK)
110: return ret;
111: }
112: if (targetNet == NULL && host->remainingRead > 0) {
113: HTTrace("HostEvent... Error: %d bytes left to read and nowhere to put them\n", host->remainingRead);
114: host->remainingRead = 0;
115: /*
116: ** Fall through to close the channel
117: */
118: }
119: /* call pipelined net object to eat all the data in the channel */
120: } while (host->remainingRead > 0);
121:
122: /* last target net should have set remainingRead to 0 */
123: if (targetNet)
124: return HT_OK;
125:
126: /* If there was notargetNet, it should be a close */
2.14 frystyk 127: HTTrace(HTHIDE("Host Event.. host %s closed connection.\n"),
2.13 frystyk 128: host->hostname);
129:
130: /* Is there garbage in the channel? Let's check: */
131: {
132: char buf[256];
133: int ret;
134: while ((ret = NETREAD(HTChannel_socket(host->channel), buf, sizeof(buf))) > 0)
2.22 eric 135: HTTrace(HTHIDE("Host Event.. Host %s had %d extraneous bytes.\n"), host->hostname, ret);
2.13 frystyk 136: }
137: HTHost_clearChannel(host, HT_OK);
138: return HT_OK; /* extra garbage does not constitute an application error */
139:
2.18 eric 140: } else if (type == HTEvent_WRITE || type == HTEvent_CONNECT) {
2.13 frystyk 141: HTNet * targetNet = (HTNet *)HTList_lastObject(host->pipeline);
142: if (targetNet) {
143: if (CORE_TRACE)
2.14 frystyk 144: HTTrace(HTHIDE("Host Event.. WRITE passed to %s.\n"),
2.13 frystyk 145: HTHIDE(HTAnchor_physical(HTRequest_anchor(HTNet_request(targetNet)))));
146: return (*targetNet->event.cbf)(HTChannel_socket(host->channel), targetNet->event.param, type);
147: }
2.14 frystyk 148: HTTrace(HTHIDE("Host Event.. Who wants to write to %s?\n"), host->hostname);
2.13 frystyk 149: return HT_ERROR;
2.14 frystyk 150: } else if (type == HTEvent_TIMEOUT) {
151:
152: if (CORE_TRACE)
153: HTTrace("Host Event.. WE SHOULD DELETE ALL REQUEST ON `%s\'?\n",
154: host->hostname);
2.13 frystyk 155:
2.14 frystyk 156: } else {
157: HTTrace(HTHIDE("Don't know how to handle OOB data from %s?\n"),
158: host->hostname);
159: }
2.13 frystyk 160: return HT_OK;
161: }
162:
2.1 frystyk 163: /*
164: ** Search the host info cache for a host object or create a new one
165: ** and add it. Examples of host names are
166: **
167: ** www.w3.org
168: ** www.foo.com:8000
169: ** 18.52.0.18
170: **
171: ** Returns Host object or NULL if error. You may get back an already
172: ** existing host object - you're not guaranteed a new one each time.
173: */
2.13 frystyk 174:
2.15 eric 175: PUBLIC HTHost * HTHost_new (char * host, u_short u_port)
2.1 frystyk 176: {
177: HTList * list = NULL; /* Current list in cache */
178: HTHost * pres = NULL;
2.13 frystyk 179: int hash = 0;
2.1 frystyk 180: if (!host) {
2.2 frystyk 181: if (CORE_TRACE) HTTrace("Host info... Bad argument\n");
2.1 frystyk 182: return NULL;
183: }
184:
185: /* Find a hash for this host */
186: {
187: char *ptr;
188: for (ptr=host; *ptr; ptr++)
2.13 frystyk 189: hash = (int) ((hash * 3 + (*(unsigned char *) ptr)) % HOST_HASH_SIZE);
2.1 frystyk 190: if (!HostTable) {
2.13 frystyk 191: if ((HostTable = (HTList **) HT_CALLOC(HOST_HASH_SIZE,
2.1 frystyk 192: sizeof(HTList *))) == NULL)
193: HT_OUTOFMEM("HTHost_find");
194: }
195: if (!HostTable[hash]) HostTable[hash] = HTList_new();
196: list = HostTable[hash];
197: }
198:
199: /* Search the cache */
200: {
201: HTList * cur = list;
202: while ((pres = (HTHost *) HTList_nextObject(cur))) {
2.15 eric 203: if (!strcmp(pres->hostname, host) && u_port == pres->u_port) {
2.8 frystyk 204: if (HTHost_isIdle(pres) && time(NULL)>pres->ntime+HostTimeout){
2.2 frystyk 205: if (CORE_TRACE)
2.1 frystyk 206: HTTrace("Host info... Collecting host info %p\n",pres);
207: delete_object(list, pres);
208: pres = NULL;
209: }
210: break;
211: }
212: }
213: }
214:
2.8 frystyk 215: /* If not found then create new Host object, else use existing one */
2.1 frystyk 216: if (pres) {
217: if (pres->channel) {
2.13 frystyk 218: if (pres->expires && pres->expires < time(NULL)) { /* Cached channel is cold */
2.2 frystyk 219: if (CORE_TRACE)
2.1 frystyk 220: HTTrace("Host info... Persistent channel %p gotten cold\n",
221: pres->channel);
2.5 eric 222: HTChannel_delete(pres->channel, HT_OK);
2.1 frystyk 223: pres->channel = NULL;
224: } else {
2.2 frystyk 225: if (CORE_TRACE)
2.1 frystyk 226: HTTrace("Host info... REUSING CHANNEL %p\n",pres->channel);
227: }
228: }
229: } else {
230: if ((pres = (HTHost *) HT_CALLOC(1, sizeof(HTHost))) == NULL)
231: HT_OUTOFMEM("HTHost_add");
2.13 frystyk 232: pres->hash = hash;
2.1 frystyk 233: StrAllocCopy(pres->hostname, host);
2.15 eric 234: pres->u_port = u_port;
2.1 frystyk 235: pres->ntime = time(NULL);
2.8 frystyk 236: pres->mode = HT_TP_SINGLE;
2.18 eric 237: {
238: int i;
239: for (i = 0; i < HTEvent_TYPES; i++)
240: pres->events[i]= HTEvent_new(HostEvent, pres, HT_PRIORITY_MAX, EventTimeout);
241: }
2.2 frystyk 242: if (CORE_TRACE)
2.24 ! frystyk 243: HTTrace("Host info... added `%s\' with host %p to list %p\n",
! 244: host, pres, list);
2.1 frystyk 245: HTList_addObject(list, (void *) pres);
246: }
247: return pres;
2.9 frystyk 248: }
249:
2.15 eric 250: PUBLIC HTHost * HTHost_newWParse (HTRequest * request, char * url, u_short u_port)
2.13 frystyk 251: {
252: char * port;
253: char * fullhost = NULL;
254: char * parsedHost = NULL;
255: SockA * sin;
256: HTHost * me;
257: char * proxy = HTRequest_proxy(request);
258:
259: fullhost = HTParse(proxy ? proxy : url, "", PARSE_HOST);
260:
261: /* If there's an @ then use the stuff after it as a hostname */
262: if (fullhost) {
263: char * at_sign;
264: if ((at_sign = strchr(fullhost, '@')) != NULL)
265: parsedHost = at_sign+1;
266: else
267: parsedHost = fullhost;
268: }
269: if (!parsedHost || !*parsedHost) {
270: HTRequest_addError(request, ERR_FATAL, NO, HTERR_NO_HOST,
271: NULL, 0, "HTDoConnect");
272: HT_FREE(fullhost);
273: return NULL;
274: }
275: port = strchr(parsedHost, ':');
276: if (PROT_TRACE)
277: HTTrace("HTDoConnect. Looking up `%s\'\n", parsedHost);
278: if (port) {
279: *port++ = '\0';
280: if (!*port || !isdigit(*port))
281: port = 0;
2.24 ! frystyk 282: u_port = (u_short) atol(port);
2.13 frystyk 283: }
284: /* Find information about this host */
2.15 eric 285: if ((me = HTHost_new(parsedHost, u_port)) == NULL) {
2.13 frystyk 286: if (PROT_TRACE)HTTrace("HTDoConnect. Can't get host info\n");
287: me->tcpstate = TCP_ERROR;
288: return NULL;
289: }
290: sin = &me->sock_addr;
291: memset((void *) sin, '\0', sizeof(SockA));
292: #ifdef DECNET
293: sin->sdn_family = AF_DECnet;
294: net->sock_addr.sdn_objnum = port ? (unsigned char)(strtol(port, (char **) 0, 10)) : DNP_OBJ;
295: #else /* Internet */
296: sin->sin_family = AF_INET;
2.15 eric 297: sin->sin_port = htons(u_port);
2.13 frystyk 298: #endif
299: HT_FREE(fullhost); /* parsedHost points into fullhost */
300: return me;
301: }
302:
2.9 frystyk 303: /*
304: ** Search the host info cache for a host object. Examples of host names:
305: **
306: ** www.w3.org
307: ** www.foo.com:8000
308: ** 18.52.0.18
309: **
310: ** Returns Host object or NULL if not found.
311: */
312: PUBLIC HTHost * HTHost_find (char * host)
313: {
314: HTList * list = NULL; /* Current list in cache */
315: HTHost * pres = NULL;
316: if (CORE_TRACE)
317: HTTrace("Host info... Looking for `%s\'\n", host ? host : "<null>");
318:
319: /* Find a hash for this host */
320: if (host && HostTable) {
321: int hash = 0;
322: char *ptr;
323: for (ptr=host; *ptr; ptr++)
2.13 frystyk 324: hash = (int) ((hash * 3 + (*(unsigned char *) ptr)) % HOST_HASH_SIZE);
2.9 frystyk 325: if (!HostTable[hash]) return NULL;
326: list = HostTable[hash];
327:
328: /* Search the cache */
329: {
330: HTList * cur = list;
331: while ((pres = (HTHost *) HTList_nextObject(cur))) {
332: if (!strcmp(pres->hostname, host)) {
333: if (time(NULL) > pres->ntime + HostTimeout) {
334: if (CORE_TRACE)
335: HTTrace("Host info... Collecting host %p\n", pres);
336: delete_object(list, pres);
337: pres = NULL;
338: } else {
339: if (CORE_TRACE)
340: HTTrace("Host info... Found `%s\'\n", host);
341: }
342: return pres;
343: }
344: }
345: }
346: }
347: return NULL;
2.1 frystyk 348: }
349:
350: /*
2.8 frystyk 351: ** Get and set the hostname of the remote host
352: */
353: PUBLIC char * HTHost_name (HTHost * host)
354: {
355: return host ? host->hostname : NULL;
356: }
357:
358: /*
2.1 frystyk 359: ** Get and set the type class of the remote host
360: */
361: PUBLIC char * HTHost_class (HTHost * host)
362: {
363: return host ? host->type : NULL;
364: }
365:
366: PUBLIC void HTHost_setClass (HTHost * host, char * s_class)
367: {
368: if (host && s_class) StrAllocCopy(host->type, s_class);
369: }
370:
371: /*
372: ** Get and set the version of the remote host
373: */
374: PUBLIC int HTHost_version (HTHost *host)
375: {
376: return host ? host->version : 0;
377: }
378:
379: PUBLIC void HTHost_setVersion (HTHost * host, int version)
380: {
381: if (host) host->version = version;
382: }
383:
384: /*
385: ** Get and set the cache timeout for persistent entries.
386: ** The default value is TCP_TIMEOUT
387: */
388: PUBLIC void HTHost_setPersistTimeout (time_t timeout)
389: {
390: TCPTimeout = timeout;
391: }
392:
393: PUBLIC time_t HTHost_persistTimeout (time_t timeout)
394: {
395: return TCPTimeout;
396: }
397:
398: /* Persistent Connection Expiration
399: ** --------------------------------
400: ** Should normally not be used. If, then use calendar time.
401: */
402: PUBLIC void HTHost_setPersistExpires (HTHost * host, time_t expires)
403: {
404: if (host) host->expires = expires;
405: }
406:
407: PUBLIC time_t HTHost_persistExpires (HTHost * host)
408: {
409: return host ? host->expires : -1;
410: }
411:
2.22 eric 412: PUBLIC void HTHost_setReqsPerConnection (HTHost * host, int reqs)
413: {
414: if (host) host->reqsPerConnection = reqs;
415: }
416:
417: PUBLIC int HTHost_reqsPerConnection (HTHost * host)
418: {
419: return host ? host->reqsPerConnection : -1;
420: }
421:
422: PUBLIC void HTHost_setReqsMade (HTHost * host, int reqs)
423: {
424: if (host) host->reqsMade = reqs;
425: }
426:
427: PUBLIC int HTHost_reqsMade (HTHost * host)
428: {
429: return host ? host->reqsMade : -1;
430: }
431:
432:
2.1 frystyk 433: /*
2.6 frystyk 434: ** Public methods for this host
435: */
436: PUBLIC HTMethod HTHost_publicMethods (HTHost * me)
437: {
438: return me ? me->methods : METHOD_INVALID;
439: }
440:
441: PUBLIC void HTHost_setPublicMethods (HTHost * me, HTMethod methodset)
442: {
443: if (me) me->methods = methodset;
444: }
445:
446: PUBLIC void HTHost_appendPublicMethods (HTHost * me, HTMethod methodset)
447: {
448: if (me) me->methods |= methodset;
449: }
450:
451: /*
452: ** Get and set the server name of the remote host
453: */
454: PUBLIC char * HTHost_server (HTHost * host)
455: {
456: return host ? host->server : NULL;
457: }
458:
459: PUBLIC BOOL HTHost_setServer (HTHost * host, const char * server)
460: {
461: if (host && server) {
462: StrAllocCopy(host->server, server);
463: return YES;
464: }
465: return NO;
466: }
467:
468: /*
469: ** Get and set the userAgent name of the remote host
470: */
471: PUBLIC char * HTHost_userAgent (HTHost * host)
472: {
473: return host ? host->user_agent : NULL;
474: }
475:
476: PUBLIC BOOL HTHost_setUserAgent (HTHost * host, const char * userAgent)
477: {
478: if (host && userAgent) {
479: StrAllocCopy(host->user_agent, userAgent);
480: return YES;
2.12 frystyk 481: }
482: return NO;
483: }
484:
485: /*
486: ** Get and set acceptable range units
487: */
488: PUBLIC char * HTHost_rangeUnits (HTHost * host)
489: {
490: return host ? host->range_units : NULL;
491: }
492:
493: PUBLIC BOOL HTHost_setRangeUnits (HTHost * host, const char * units)
494: {
495: if (host && units) {
496: StrAllocCopy(host->range_units, units);
497: return YES;
498: }
499: return NO;
500: }
501:
502: /*
503: ** Checks whether a specific range unit is OK. We always say
504: ** YES except if we have a specific statement from the server that
505: ** it doesn't understand byte ranges - that is - it has sent "none"
506: ** in a "Accept-Range" response header
507: */
508: PUBLIC BOOL HTHost_isRangeUnitAcceptable (HTHost * host, const char * unit)
509: {
510: if (host && unit) {
511: #if 0
512: if (host->range_units) {
513: char * start = strcasestr(host->range_units, "none");
514:
515: /*
516: ** Check that "none" is infact a token. It could be part of some
517: ** other valid string, so we'd better check for it.
518: */
519: if (start) {
520:
521:
522: }
523: return NO;
524: }
525: #endif
526: return strcasecomp(unit, "bytes") ? NO : YES;
2.6 frystyk 527: }
528: return NO;
529: }
530:
2.1 frystyk 531: /* HTHost_catchClose
532: ** -----------------
533: ** This function is registered when the socket is idle so that we get
534: ** a notification if the socket closes at the other end. At this point
535: ** we can't use the request object as it might have been freed a long
536: ** time ago.
537: */
2.13 frystyk 538: PUBLIC int HTHost_catchClose (SOCKET soc, void * context, HTEventType type)
2.1 frystyk 539: {
2.13 frystyk 540: HTNet * net = (HTNet *)context;
541: HTHost * host = net->host;
2.2 frystyk 542: if (CORE_TRACE)
2.13 frystyk 543: HTTrace("Catch Close. called with socket %d with type %x\n",
544: soc, type);
545: if (type == HTEvent_READ) {
2.1 frystyk 546: HTChannel * ch = HTChannel_find(soc); /* Find associated channel */
2.8 frystyk 547: HTHost * host = HTChannel_host(ch); /* and associated host */
2.1 frystyk 548: if (ch && host) {
2.2 frystyk 549: if (CORE_TRACE) HTTrace("Catch Close. CLOSING socket %d\n", soc);
2.8 frystyk 550: HTHost_clearChannel(host, HT_OK);
2.1 frystyk 551: } else {
2.2 frystyk 552: if (CORE_TRACE) HTTrace("Catch Close. socket %d NOT FOUND!\n",soc);
2.1 frystyk 553: }
554: }
2.13 frystyk 555: HTHost_unregister(host, net, HTEvent_CLOSE);
2.1 frystyk 556: return HT_OK;
557: }
558:
559: /*
560: ** As soon as we know that this host accepts persistent connections,
561: ** we associated the channel with the host.
562: ** We don't want more than MaxSockets-2 connections to be persistent in
563: ** order to avoid deadlock.
564: */
2.13 frystyk 565: PUBLIC BOOL HTHost_setPersistent (HTHost * host,
566: BOOL persistent,
567: HTTransportMode mode)
2.1 frystyk 568: {
2.13 frystyk 569: if (!host) return NO;
570:
571: if (!persistent) {
572: /*
573: ** We use the HT_IGNORE status code as we don't want to free
574: ** the stream at this point in time. The situation we want to
575: ** avoid is that we free the channel from within the stream pipe.
576: ** This will lead to an infinite look having the stream freing
577: ** itself.
578: */
579: return HTHost_clearChannel(host, HT_IGNORE);
580: }
581:
2.18 eric 582: /*
583: ** Set the host persistent if not already. Also update the mode to
584: ** the new one - it may have changed
585: */
586: HTHost_setMode(host, mode);
587: if (!host->persistent) {
2.13 frystyk 588: SOCKET sockfd = HTChannel_socket(host->channel);
2.8 frystyk 589: if (sockfd != INVSOC && HTNet_availablePersistentSockets() > 0) {
2.13 frystyk 590: host->persistent = YES;
2.1 frystyk 591: host->expires = time(NULL) + TCPTimeout; /* Default timeout */
2.13 frystyk 592: HTChannel_setHost(host->channel, host);
2.8 frystyk 593: HTNet_increasePersistentSocket();
2.2 frystyk 594: if (CORE_TRACE)
2.1 frystyk 595: HTTrace("Host info... added host %p as persistent\n", host);
596: return YES;
597: } else {
2.2 frystyk 598: if (CORE_TRACE)
599: HTTrace("Host info... no room for persistent socket %d\n",
2.7 frystyk 600: sockfd);
2.18 eric 601: return NO;
2.1 frystyk 602: }
2.18 eric 603: } else {
604: if (CORE_TRACE) HTTrace("Host info... %p already persistent\n", host);
605: return YES;
2.1 frystyk 606: }
607: return NO;
608: }
609:
610: /*
2.13 frystyk 611: ** Check whether we have a persistent channel or not
612: */
613: PUBLIC BOOL HTHost_isPersistent (HTHost * host)
614: {
615: return host && host->persistent;
616: }
617:
618: /*
2.1 frystyk 619: ** Find persistent channel associated with this host.
620: */
621: PUBLIC HTChannel * HTHost_channel (HTHost * host)
622: {
623: return host ? host->channel : NULL;
624: }
625:
626: /*
627: ** Clear the persistent entry by deleting the channel object. Note that
628: ** the channel object is only deleted if it's not used anymore.
629: */
2.8 frystyk 630: PUBLIC BOOL HTHost_clearChannel (HTHost * host, int status)
2.1 frystyk 631: {
632: if (host && host->channel) {
2.8 frystyk 633: HTChannel_setHost(host->channel, NULL);
2.10 frystyk 634:
2.13 frystyk 635: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_READ);
636: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_WRITE);
2.18 eric 637: host->registeredFor = 0;
2.13 frystyk 638:
2.10 frystyk 639: /*
640: ** We don't want to recursively delete ourselves so if we are
641: ** called from within the stream pipe then don't delete the channel
642: ** at this point
643: */
2.8 frystyk 644: HTChannel_delete(host->channel, status);
2.18 eric 645: host->expires = 0;
2.1 frystyk 646: host->channel = NULL;
2.22 eric 647: host->tcpstate = TCP_BEGIN;
648: host->reqsMade = 0;
2.8 frystyk 649: HTNet_decreasePersistentSocket();
2.2 frystyk 650: if (CORE_TRACE)
651: HTTrace("Host info... removed host %p as persistent\n", host);
2.1 frystyk 652: return YES;
653: }
654: return NO;
655: }
656:
657: /*
2.18 eric 658: ** Move all entries in the pipeline and move the rest to the pending
659: ** queue. They will get launched at a later point in time.
660: */
661: PUBLIC BOOL HTHost_recoverPipe (HTHost * host)
662: {
663: if (host) {
664: int piped = HTList_count(host->pipeline);
665: if (piped > 0) {
666: int cnt;
2.24 ! frystyk 667: host->recovered++;
2.18 eric 668: if (CORE_TRACE)
2.24 ! frystyk 669: HTTrace("Host recovered %d times. Moving %d Net objects from pipe line to pending queue\n",
! 670: host->recovered, piped);
2.18 eric 671:
672: /*
673: ** Unregister this host for all events
674: */
675: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_READ);
676: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_WRITE);
677: host->registeredFor = 0;
678:
679: /*
680: ** Set new mode to single until we know what is going on
681: */
682: host->mode = HT_TP_SINGLE;
683:
684: /*
685: ** Move all net objects from the net object to the pending queue.
686: */
687: if (!host->pending) host->pending = HTList_new();
688: for (cnt=0; cnt<piped; cnt++) {
689: HTNet * net = HTList_removeLastObject(host->pipeline);
690: if (CORE_TRACE) HTTrace("Host recover Resetting net object %p\n", net);
691: net->registeredFor = 0;
692: (*net->event.cbf)(HTChannel_socket(host->channel), net->event.param, HTEvent_RESET);
693: HTList_appendObject(host->pending, net);
694: }
695: HTChannel_setSemaphore(host->channel, 0);
696: HTHost_clearChannel(host, HT_INTERRUPTED);
697: }
2.24 ! frystyk 698: #if 0
! 699: /*
! 700: ** We don't wanna change state here
! 701: */
2.18 eric 702: return HTHost_launchPending(host);
2.24 ! frystyk 703: #else
! 704: return YES;
! 705: #endif
2.18 eric 706: }
707: return NO;
708: }
709:
710: /*
2.8 frystyk 711: ** Handle the connection mode. The mode may change mode in the
712: ** middle of a connection.
713: */
714: PUBLIC HTTransportMode HTHost_mode (HTHost * host, BOOL * active)
715: {
716: return host ? host->mode : HT_TP_SINGLE;
717: }
718:
719: /*
720: ** If the new mode is lower than the old mode then adjust the pipeline
721: ** accordingly. That is, if we are going into single mode then move
722: ** all entries in the pipeline and move the rest to the pending
723: ** queue. They will get launched at a later point in time.
724: */
725: PUBLIC BOOL HTHost_setMode (HTHost * host, HTTransportMode mode)
726: {
727: if (host) {
728: /*
729: ** Check the new mode and see if we must adjust the queues.
730: */
731: if (mode == HT_TP_SINGLE && host->mode > mode) {
732: int piped = HTList_count(host->pipeline);
733: if (piped > 0) {
734: int cnt;
735: if (CORE_TRACE)
736: HTTrace("Host info... Moving %d Net objects from pipe line to pending queue\n", piped);
737: if (!host->pending) host->pending = HTList_new();
738: for (cnt=0; cnt<piped; cnt++) {
2.18 eric 739: HTNet * net = HTList_removeLastObject(host->pipeline);
740: if (CORE_TRACE) HTTrace("Host info... Resetting net object %p\n", net);
2.13 frystyk 741: (*net->event.cbf)(HTChannel_socket(host->channel), net->event.param, HTEvent_RESET);
2.8 frystyk 742: HTList_appendObject(host->pending, net);
743: }
2.18 eric 744: HTChannel_setSemaphore(host->channel, 0);
745: HTHost_clearChannel(host, HT_INTERRUPTED);
2.8 frystyk 746: }
2.24 ! frystyk 747: }
! 748:
! 749: /*
! 750: ** If we know that this host is bad then we don't allow anything than
! 751: ** single mode. We can't recover connections for the rest of our life
! 752: */
! 753: if (mode == HT_TP_PIPELINE && host->recovered > MAX_HOST_RECOVER) {
! 754: if (PROT_TRACE)
! 755: HTTrace("Host info... %p is bad for pipelining so we won't do it!!!\n",
! 756: host);
! 757: } else {
! 758: host->mode = mode;
! 759: if (PROT_TRACE)
! 760: HTTrace("Host info... New mode is %d for host %p\n", host->mode, host);
! 761: }
2.8 frystyk 762: }
763: return NO;
764: }
765:
766: /*
767: ** Check whether a host is idle meaning if it is ready for a new
768: ** request which depends on the mode of the host. If the host is
769: ** idle, i.e. ready for use then return YES else NO. If the host supports
770: ** persistent connections then still only return idle if no requests are
771: ** ongoing.
772: */
773: PUBLIC BOOL HTHost_isIdle (HTHost * host)
774: {
775: return (host && HTList_count(host->pipeline) <= 0);
776: }
777:
2.13 frystyk 778: PRIVATE BOOL _roomInPipe (HTHost * host)
779: {
780: int count;
781: if (!host) return NO;
2.22 eric 782: if (host->reqsPerConnection && host->reqsMade >= host->reqsPerConnection)
783: return 0;
2.13 frystyk 784: count = HTList_count(host->pipeline);
785: switch (host->mode) {
786: case HT_TP_SINGLE:
787: return count <= 0;
788: case HT_TP_PIPELINE:
789: return count < MAX_PIPES;
790: case HT_TP_INTERLEAVE:
791: return YES;
792: }
793: return NO;
794: }
795:
2.8 frystyk 796: /*
797: ** Add a net object to the host object. If the host
798: ** is idle then add to active list (pipeline) else add
799: ** it to the pending list
800: ** Return HT_PENDING if we must pend, HT_OK, or HT_ERROR
801: */
802: PUBLIC int HTHost_addNet (HTHost * host, HTNet * net)
803: {
804: if (host && net) {
805: int status = HT_OK;
806:
2.18 eric 807: /*
808: ** If we don't have a socket already then check to see if we can get
809: ** one. Otherwise we put the host object into our pending queue.
810: */
811: if (!host->channel && HTNet_availableSockets() <= 0) {
2.8 frystyk 812: if (!PendHost) PendHost = HTList_new();
813: if (CORE_TRACE)
814: HTTrace("Host info... Add Host %p as pending\n", host);
815: HTList_addObject(PendHost, host);
816: status = HT_PENDING;
817: }
818:
2.18 eric 819: /*
820: ** Add net object to either active or pending queue.
821: */
2.13 frystyk 822: if (_roomInPipe(host)) {
2.8 frystyk 823: if (CORE_TRACE) HTTrace("Host info... Add Net %p to pipeline of host %p\n", net, host);
824: if (!host->pipeline) host->pipeline = HTList_new();
825: HTList_addObject(host->pipeline, net);
2.18 eric 826:
2.13 frystyk 827: /*
828: ** Send out the request if we're not blocked on write
829: */
2.23 eric 830: #if 0
2.13 frystyk 831: if (!(host->registeredFor & HTEvent_BITS(HTEvent_WRITE)))
832: status = HTHost_launchPending(host) == YES ? HT_OK : HT_ERROR;
2.23 eric 833: #endif
2.8 frystyk 834: } else {
835: if (CORE_TRACE) HTTrace("Host info... Add Net %p as pending\n", net);
836: if (!host->pending) host->pending = HTList_new();
837: HTList_addObject(host->pending, net);
838: status = HT_PENDING;
839: }
840: return status;
841: }
842: return HT_ERROR;
843: }
844:
2.13 frystyk 845: PUBLIC BOOL HTHost_free (HTHost * host, int status)
846: {
847: if (host->channel == NULL) return NO;
2.23 eric 848: if (host->persistent && !(host->reqsMade >= host->reqsPerConnection && HTList_count(host->pipeline) <= 1))
849: /* if (host->persistent) */
850: {
2.13 frystyk 851: if (CORE_TRACE)
852: HTTrace("Host Object. keeping socket %d\n", HTChannel_socket(host->channel));
853: HTChannel_delete(host->channel, status);
854: } else {
855: if (CORE_TRACE)
856: HTTrace("Host Object. closing socket %d\n", HTChannel_socket(host->channel));
857:
858: /*
859: ** By lowering the semaphore we make sure that the channel
860: ** is gonna be deleted
861: */
2.23 eric 862: #if 1
863: HTChannel_downSemaphore(host->channel);
864: HTHost_clearChannel(host, status);
865: #else
2.13 frystyk 866: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_READ);
867: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_WRITE);
868: host->registeredFor = 0;
869: HTChannel_downSemaphore(host->channel);
870: HTChannel_delete(host->channel, status);
871: host->channel = NULL;
2.22 eric 872: host->tcpstate = TCP_BEGIN;
2.23 eric 873: #endif
2.13 frystyk 874: }
875: return YES;
876: }
877:
2.8 frystyk 878: PUBLIC BOOL HTHost_deleteNet (HTHost * host, HTNet * net)
879: {
880: if (host && net) {
881: if (CORE_TRACE)
882: HTTrace("Host info... Remove Net %p from pipe line\n", net);
883: HTList_removeObject(host->pipeline, net);
884: HTList_removeObject(host->pending, net);
885: return YES;
886: }
887: return NO;
888: }
889:
890: /*
891: ** Handle pending host objects.
892: ** There are two ways we can end up with pending reqyests:
893: ** 1) If we are out of sockets then register new host objects as pending.
894: ** 2) If we are pending on a connection then register new net objects as
895: ** pending
896: ** This set of functions handles pending host objects and can start new
897: ** requests as resources get available
898: */
899:
900: /*
901: ** Check this host object for any pending requests and return the next
902: ** registered Net object.
903: */
904: PUBLIC HTNet * HTHost_nextPendingNet (HTHost * host)
905: {
906: HTNet * net = NULL;
907: if (host && host->pending && host->pipeline) {
2.18 eric 908: /*JK 23/Sep/96 Bug correction. Associated the following lines to the
909: **above if. There was a missing pair of brackets.
910: */
911: if ((net = (HTNet *) HTList_removeFirstObject(host->pending)) != NULL) {
912: if (PROT_TRACE)
913: HTTrace("Host info... Popping %p from pending net queue\n", net);
2.22 eric 914: /* HTList_addObject(host->pipeline, net); */
2.18 eric 915: }
2.8 frystyk 916: }
917: return net;
918: }
919:
920: /*
2.13 frystyk 921: ** Return the current list of pending host objects waiting for a socket
2.8 frystyk 922: */
923: PUBLIC HTHost * HTHost_nextPendingHost (void)
924: {
925: HTHost * host = NULL;
926: if (PendHost) {
927: if ((host = (HTHost *) HTList_removeFirstObject(PendHost)) != NULL)
928: if (PROT_TRACE)
929: HTTrace("Host info... Poping %p from pending host queue\n",
930: host);
931: }
932: return host;
933: }
934:
935: /*
936: ** Start the next pending request if any. First we look for pending
937: ** requests for the same host and then we check for any other pending
938: ** hosts
939: */
940: PUBLIC BOOL HTHost_launchPending (HTHost * host)
941: {
942: int available = HTNet_availableSockets();
943:
944: if (!host) {
945: if (PROT_TRACE) HTTrace("Host info... Bad arguments\n");
946: return NO;
947: }
948:
949: /*
950: ** Check if we do have resources available for a new request
951: ** This can either be reusing an existing connection or opening a new one
952: */
953: if (available > 0 || host->mode >= HT_TP_PIPELINE) {
2.23 eric 954: HTNet * net;
2.8 frystyk 955:
956: /*
2.13 frystyk 957: ** In pipeline we can only have one doing writing at a time.
958: ** We therefore check that there are no other Net object
959: ** registered for write
960: */
961: if (host->mode == HT_TP_PIPELINE) {
2.23 eric 962: net = (HTNet *) HTList_lastObject(host->pipeline);
963: if (net && net->registeredFor == HTEvent_WRITE)
2.13 frystyk 964: return NO;
965: }
966:
967: /*
968: ** Check the current Host object for pending Net objects
2.23 eric 969: **
970: ** Send out as many as will fit in pipe.
2.8 frystyk 971: */
2.23 eric 972: while (_roomInPipe(host) && (net = HTHost_nextPendingNet(host))) {
973: int status = HTNet_execute(net, HTEvent_WRITE);
974: if (status != HT_OK)
975: return status;
2.8 frystyk 976: }
977:
978: /*
979: ** Check for other pending Host objects
980: */
981: {
982: HTHost * pending = HTHost_nextPendingHost();
983: if (pending) {
984: HTNet * net = HTHost_nextPendingNet(pending);
2.13 frystyk 985: if (net) return HTNet_execute(net, HTEvent_WRITE);
2.8 frystyk 986: }
987: }
2.13 frystyk 988: } else
989: if (PROT_TRACE) HTTrace("Host info... No more requests.\n");
990: return NO;
991: }
992:
993: PUBLIC HTNet * HTHost_firstNet (HTHost * host)
994: {
995: return (HTNet *) HTList_firstObject(host->pipeline);
996: }
997:
998: /*
999: ** The host event manager keeps track of the state of it's client engines
1000: ** (typically HTTPEvent), accepting multiple blocks on read or write from
1001: ** multiple pipelined engines. It then registers its own engine
1002: ** (HostEvent) with the event manager.
1003: */
1004: PUBLIC int HTHost_connect (HTHost * host, HTNet * net, char * url, HTProtocolId port)
1005: {
1006: int status;
2.18 eric 1007: /* if (host && host->connecttime)
2.13 frystyk 1008: return HT_OK;
2.18 eric 1009: */
2.13 frystyk 1010: status = HTDoConnect(net, url, port);
2.22 eric 1011: if (status == HT_OK) {
1012: HTNet_host(net)->reqsMade++; /* @@@ - what if there's a connect but no req sent? */
2.13 frystyk 1013: return HT_OK;
2.22 eric 1014: }
2.13 frystyk 1015: if (status == HT_WOULD_BLOCK || status == HT_PENDING)
1016: return HT_WOULD_BLOCK;
1017: return HT_ERROR; /* @@@ - some more deletion and stuff here? */
1018: }
1019:
1020: /*
1021: ** Rules: SINGLE: one element in pipe, either reading or writing
1022: ** PIPE: n element in pipe, n-1 reading, 1 writing
1023: */
1024: PUBLIC int HTHost_register (HTHost * host, HTNet * net, HTEventType type)
1025: {
1026: if (host && net) {
1027:
1028: /* net object may already be registered */
1029: if (HTEvent_BITS(type) & net->registeredFor)
1030: return NO;
1031: net->registeredFor ^= HTEvent_BITS(type);
1032:
1033: /* host object may already be registered */
1034: if (host->registeredFor & HTEvent_BITS(type))
1035: return YES;
1036: host->registeredFor ^= HTEvent_BITS(type);
1037: return HTEvent_register(HTChannel_socket(host->channel), type, *(host->events+HTEvent_INDEX(type)));
1038: }
1039: return NO;
1040: }
1041:
1042: PUBLIC int HTHost_unregister (HTHost * host, HTNet * net, HTEventType type)
1043: {
1044: if (host && net) {
1045:
1046: /* net object may no be registered */
1047: if (!(HTEvent_BITS(type) & net->registeredFor))
1048: return NO;
1049: net->registeredFor ^= HTEvent_BITS(type);
1050:
1051: /* host object may no be registered */
1052: if (!(host->registeredFor & HTEvent_BITS(type)))
1053: return YES;
1054: host->registeredFor ^= HTEvent_BITS(type);
1055:
1056: /* stay registered for READ to catch a socket close */
1057: /* WRITE and CONNECT can be unregistered, though */
1058: if ((type == HTEvent_WRITE && isLastInPipe(host, net)) ||
1059: type == HTEvent_CONNECT)
1060: /* if we are blocked downstream, shut down the whole pipe */
1061: HTEvent_unregister(HTChannel_socket(host->channel), type);
1062: return YES;
1063: }
1064: return NO;
1065: }
1066:
1067: /*
1068: ** The reader tells HostEvent that it's stream did not finish the data
1069: */
1070: PUBLIC BOOL HTHost_setRemainingRead (HTHost * host, size_t remaining)
1071: {
1072: if (host == NULL) return NO;
1073: host->remainingRead = remaining;
2.20 frystyk 1074: if (PROT_TRACE) HTTrace("Host........ %d bytes remaining \n", remaining);
2.13 frystyk 1075: return YES;
1076: }
1077:
1078: PUBLIC SockA * HTHost_getSockAddr (HTHost * host)
1079: {
1080: if (!host) return NULL;
1081: return &host->sock_addr;
1082: }
1083:
1084: PUBLIC BOOL HTHost_setHome (HTHost * host, int home)
1085: {
1086: if (!host) return NO;
1087: host->home = home;
1088: return YES;
1089: }
1090:
1091: PUBLIC int HTHost_home (HTHost * host)
1092: {
1093: if (!host) return 0;
1094: return host->home;
1095: }
1096:
1097: #if 0 /* Is a macro right now */
2.21 frystyk 1098: PRIVATE BOOL HTHost_setDNS5 (HTHost * host, HTdns * dns)
2.13 frystyk 1099: {
1100: if (!host) return NO;
1101: host->dns = dns;
1102: return YES;
1103: }
1104: #endif
1105:
1106: PUBLIC BOOL HTHost_setChannel (HTHost * host, HTChannel * channel)
1107: {
1108: if (!host) return NO;
1109: host->channel = channel;
1110: return YES;
1111: }
1112:
1113: PUBLIC HTNet * HTHost_getReadNet(HTHost * host)
1114: {
1115: if (host) {
1116: if (host->mode == HT_TP_INTERLEAVE) {
2.21 frystyk 1117: #ifdef HT_MUX
2.13 frystyk 1118: HTMuxChannel * muxch = HTMuxChannel_find(host);
1119: return HTMuxChannel_net(muxch);
2.21 frystyk 1120: #endif
2.13 frystyk 1121: }
1122: return (HTNet *) HTList_firstObject(host->pipeline);
1123: }
1124: return NULL;
1125: }
1126:
1127: PUBLIC HTNet * HTHost_getWriteNet(HTHost * host)
1128: {
1129: return host ? (HTNet *) HTList_lastObject(host->pipeline) : NULL;
1130: }
1131:
1132: /*
1133: ** Create the input stream and bind it to the channel
1134: ** Please read the description in the HTIOStream module for the parameters
1135: */
1136: PUBLIC HTInputStream * HTHost_getInput (HTHost * host, HTTransport * tp,
1137: void * param, int mode)
1138: {
1139: if (host && host->channel && tp) {
1140: HTChannel * ch = host->channel;
1141: HTInputStream * input = (*tp->input_new)(host, ch, param, mode);
1142: HTChannel_setInput(ch, input);
1143: return HTChannel_getChannelIStream(ch);
1144: }
2.24 ! frystyk 1145: if (CORE_TRACE) HTTrace("Host Object. Can't create input stream\n");
2.13 frystyk 1146: return NULL;
1147: }
1148:
1149: PUBLIC HTOutputStream * HTHost_getOutput (HTHost * host, HTTransport * tp,
1150: void * param, int mode)
1151: {
1152: if (host && host->channel && tp) {
1153: HTChannel * ch = host->channel;
1154: HTOutputStream * output = (*tp->output_new)(host, ch, param, mode);
1155: HTChannel_setOutput(ch, output);
1156: return output;
1157: }
2.24 ! frystyk 1158: if (CORE_TRACE) HTTrace("Host Object. Can't create output stream\n");
2.13 frystyk 1159: return NULL;
1160: }
1161:
1162: PUBLIC HTOutputStream * HTHost_output (HTHost * host, HTNet * net)
1163: {
1164: if (host && host->channel && net) {
1165: HTOutputStream * output = HTChannel_output(host->channel);
2.8 frystyk 1166:
1167: /*
2.13 frystyk 1168: ** If we are in MUX mode then create new output stream on top
1169: ** of the already existing one. Otherwise just return what we
1170: ** have.
2.8 frystyk 1171: */
2.13 frystyk 1172: if (host->mode == HT_TP_INTERLEAVE) {
2.21 frystyk 1173: #ifdef HT_MUX
2.13 frystyk 1174: HTStream * target = (HTStream *) HTChannel_output(host->channel);
1175: output = HTMuxWriter_new(host, net, target);
2.21 frystyk 1176: #endif
2.8 frystyk 1177: }
2.13 frystyk 1178: return output;
1179: }
1180: return NULL;
1181: }
1182:
1183: PUBLIC int HTHost_read(HTHost * host, HTNet * net)
1184: {
1185: HTInputStream * input = HTChannel_input(host->channel);
1186: if (net != HTHost_getReadNet(host)) {
1187: HTHost_register(host, net, HTEvent_READ);
1188: return HT_WOULD_BLOCK;
1189: }
2.17 frystyk 1190:
1191: /*
1192: ** If there is no input channel then this can either mean that
1193: ** we have lost the channel or an error occurred. We return
1194: ** HT_CLOSED as this is a sign to the caller that we don't
1195: ** have a channel
1196: */
1197: return input ? (*input->isa->read)(input) : HT_CLOSED;
2.13 frystyk 1198: }
1199:
1200: PUBLIC BOOL HTHost_setConsumed(HTHost * host, size_t bytes)
1201: {
1202: HTInputStream * input;
1203: if (!host || !host->channel) return NO;
1204: if ((input = HTChannel_input(host->channel)) == NULL)
1205: return NO;
2.20 frystyk 1206: if (PROT_TRACE)
1207: HTTrace("Host........ passing %d bytes as consumed to %p\n", bytes, input);
2.13 frystyk 1208: return (*input->isa->consumed)(input, bytes);
1209: }
1210:
1211: PUBLIC int HTHost_hash (HTHost * host)
1212: {
1213: return host ? host->hash : -1;
1214: }
1215:
2.14 frystyk 1216: PUBLIC int HTHost_writeDelay(HTHost * host, ms_t lastFlushTime, int buffSize)
2.13 frystyk 1217: {
2.15 eric 1218: unsigned short mtu;
2.18 eric 1219: int ret = -1;
2.15 eric 1220: int socket = HTChannel_socket(host->channel);
2.18 eric 1221: #ifndef WWW_MSWINDOWS
2.15 eric 1222: ret = ioctl(socket, 666, (unsigned long)&mtu);
2.18 eric 1223: #endif /* WWW_MSWINDOWS */
2.15 eric 1224: if ((ret == 0 && buffSize >= mtu) || host->forceWriteFlush)
2.13 frystyk 1225: return 0;
1226: return 1000;
1227: }
1228:
1229: PUBLIC int HTHost_forceFlush(HTHost * host)
1230: {
1231: HTNet * targetNet = (HTNet *)HTList_lastObject(host->pipeline);
1232: int wasForced = host->forceWriteFlush;
1233: int ret;
1234: if (targetNet == NULL)
1235: return HT_ERROR;
1236: if (CORE_TRACE)
2.14 frystyk 1237: HTTrace(HTHIDE("Host Event.. FLUSH passed to %s.\n"),
2.13 frystyk 1238: HTHIDE(HTAnchor_physical(HTRequest_anchor(HTNet_request(targetNet)))));
1239: host->forceWriteFlush = YES;
1240: ret = (*targetNet->event.cbf)(HTChannel_socket(host->channel), targetNet->event.param, HTEvent_FLUSH);
1241: host->forceWriteFlush = wasForced;
1242: return ret;
2.1 frystyk 1243: }
2.11 kahan 1244:
2.13 frystyk 1245: PUBLIC int HTHost_eventTimeout (void)
1246: {
1247: return EventTimeout;
1248: }
2.11 kahan 1249:
2.13 frystyk 1250: PUBLIC void HTHost_setEventTimeout (int millis)
1251: {
1252: EventTimeout = millis;
1253: if (CORE_TRACE) HTTrace("Host........ Setting event timeout to %d ms\n", millis);
1254: }
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