Annotation of libwww/Library/src/HTHost.c, revision 2.65
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.
2.65 ! frystyk 6: ** @(#) $Id: HTHost.c,v 2.64 1999/04/17 20:39:17 frystyk 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 */
2.44 frystyk 16: #include "wwwsys.h"
2.1 frystyk 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 "HTTPUtil.h"
24: #include "HTTCP.h"
2.1 frystyk 25: #include "HTHost.h" /* Implemented here */
2.13 frystyk 26: #include "HTHstMan.h"
2.1 frystyk 27:
2.48 frystyk 28: #define HOST_OBJECT_TTL 43200L /* Default host timeout is 12 h */
2.29 frystyk 29:
2.48 frystyk 30: #define TCP_IDLE_PASSIVE 120L /* Passive TTL in s on an idle connection */
31: #define TCP_IDLE_ACTIVE 60000L /* Active TTL in ms on an idle connection */
2.29 frystyk 32:
2.45 frystyk 33: #define MAX_PIPES 50 /* maximum number of pipelined requests */
2.50 frystyk 34: #define MAX_HOST_RECOVER 1 /* Max number of auto recovery */
2.32 frystyk 35: #define DEFAULT_DELAY 30 /* Default write flush delay in ms */
2.1 frystyk 36:
2.13 frystyk 37: struct _HTInputStream {
38: const HTInputStreamClass * isa;
2.1 frystyk 39: };
40:
2.13 frystyk 41: PRIVATE int HostEvent(SOCKET soc, void * pVoid, HTEventType type);
42:
43: /* Type definitions and global variables etc. local to this module */
2.48 frystyk 44: PRIVATE time_t HostTimeout = HOST_OBJECT_TTL; /* Timeout for host objects */
2.53 frystyk 45: PRIVATE time_t HTPassiveTimeout = TCP_IDLE_PASSIVE; /* Passive timeout in s */
46: PRIVATE ms_t HTActiveTimeout = TCP_IDLE_ACTIVE; /* Active timeout in ms */
2.1 frystyk 47:
2.8 frystyk 48: PRIVATE HTList ** HostTable = NULL;
49: PRIVATE HTList * PendHost = NULL; /* List of pending host elements */
2.1 frystyk 50:
2.40 kahan 51: /* JK: New functions for interruption the automatic pending request
52: activation */
53: PRIVATE HTHost_ActivateRequestCallback * ActivateReqCBF = NULL;
54: PRIVATE int HTHost_ActivateRequest (HTNet *net);
55: PRIVATE BOOL DoPendingReqLaunch = YES; /* controls automatic activation
56: of pending requests */
57:
2.13 frystyk 58: PRIVATE int EventTimeout = -1; /* Global Host event timeout */
59:
2.36 frystyk 60: PRIVATE ms_t WriteDelay = DEFAULT_DELAY; /* Delay in ms */
2.26 frystyk 61:
2.45 frystyk 62: PRIVATE int MaxPipelinedRequests = MAX_PIPES;
63:
2.1 frystyk 64: /* ------------------------------------------------------------------------- */
65:
66: PRIVATE void free_object (HTHost * me)
67: {
68: if (me) {
2.30 frystyk 69: int i;
2.1 frystyk 70: HT_FREE(me->hostname);
71: HT_FREE(me->type);
2.12 frystyk 72: HT_FREE(me->server);
73: HT_FREE(me->user_agent);
74: HT_FREE(me->range_units);
2.30 frystyk 75:
76: /* Delete the channel (if any) */
2.3 eric 77: if (me->channel) {
2.5 eric 78: HTChannel_delete(me->channel, HT_OK);
2.3 eric 79: me->channel = NULL;
80: }
2.30 frystyk 81:
82: /* Unregister the events */
2.18 eric 83: for (i = 0; i < HTEvent_TYPES; i++)
84: HTEvent_delete(me->events[i]);
2.30 frystyk 85:
86: /* Delete the timer (if any) */
87: if (me->timer) HTTimer_delete(me->timer);
88:
89: /* Delete the queues */
2.8 frystyk 90: HTList_delete(me->pipeline);
91: HTList_delete(me->pending);
2.1 frystyk 92: HT_FREE(me);
93: }
94: }
95:
96: PRIVATE BOOL delete_object (HTList * list, HTHost * me)
97: {
2.59 frystyk 98: HTTRACE(CORE_TRACE, "Host info... object %p from list %p\n" _ me _ list);
2.1 frystyk 99: HTList_removeObject(list, (void *) me);
100: free_object(me);
101: return YES;
102: }
103:
2.13 frystyk 104: PRIVATE BOOL isLastInPipe (HTHost * host, HTNet * net)
105: {
106: return HTList_lastObject(host->pipeline) == net;
107: }
108:
2.51 frystyk 109: PRIVATE BOOL killPipeline (HTHost * host, HTEventType type)
2.48 frystyk 110: {
111: if (host) {
112: int piped = HTList_count(host->pipeline);
113: int pending = HTList_count(host->pending);
114: int cnt;
115:
2.59 frystyk 116: HTTRACE(CORE_TRACE, "Host kill... Pipeline due to %s event\n" _ HTEvent_type2str(type));
2.51 frystyk 117:
2.48 frystyk 118: /* Terminate all net objects in pending queue */
119: for (cnt=0; cnt<pending; cnt++) {
120: HTNet * net = HTList_removeLastObject(host->pending);
2.56 frystyk 121: if (net) {
2.59 frystyk 122: HTTRACE(CORE_TRACE, "Host kill... Terminating net object %p from pending queue\n" _ net);
2.56 frystyk 123: net->registeredFor = 0;
124: (*net->event.cbf)(HTChannel_socket(host->channel), net->event.param, type);
2.58 frystyk 125: if (host->lock == net) host->lock = NULL;
2.56 frystyk 126: }
2.48 frystyk 127: }
128:
129: /* Terminate all net objects in pipeline */
130: if (piped >= 1) {
131:
132: /*
133: ** Terminte all net objects in the pipeline
134: */
135: for (cnt=0; cnt<piped; cnt++) {
136: HTNet * net = HTList_firstObject(host->pipeline);
2.56 frystyk 137: if (net) {
2.59 frystyk 138: HTTRACE(CORE_TRACE, "Host kill... Terminating net object %p from pipe line\n" _ net);
2.56 frystyk 139: net->registeredFor = 0;
140: (*net->event.cbf)(HTChannel_socket(host->channel), net->event.param, type);
141: }
2.48 frystyk 142: }
143: }
144: return YES;
145: }
146: return NO;
147: }
148:
149: /*
2.51 frystyk 150: ** Silently close an idle persistent connection after
2.53 frystyk 151: ** HTActiveTimeout secs
2.51 frystyk 152: */
153: PRIVATE int IdleTimeoutEvent (HTTimer * timer, void * param, HTEventType type)
154: {
155: HTHost * host = (HTHost *) param;
156: SOCKET sockfd = HTChannel_socket(host->channel);
157: int result = HostEvent (sockfd, host, HTEvent_CLOSE);
158: HTTimer_delete(timer);
159: host->timer = NULL;
160: return result;
161: }
162:
163: /*
2.13 frystyk 164: ** HostEvent - host event manager - recieves events from the event
165: ** manager and dispatches them to the client net objects by calling the
166: ** net object's cbf.
167: **
168: */
169: PRIVATE int HostEvent (SOCKET soc, void * pVoid, HTEventType type)
170: {
171: HTHost * host = (HTHost *)pVoid;
172:
2.61 frystyk 173: if (type == HTEvent_READ || type == HTEvent_CLOSE || type == HTEvent_ACCEPT) {
2.13 frystyk 174: HTNet * targetNet;
175:
176: /* call the first net object */
177: do {
178: int ret;
2.49 frystyk 179:
180: /* netscape and apache servers can do a lazy close well after usage
181: * of previous socket has been dispensed by the library,
182: * the section below makes sure the event does not get miss attributed
183: */
184: if (HTChannel_socket(host->channel) != soc) {
2.59 frystyk 185: HTTRACE(CORE_TRACE, "Host Event.. wild socket %d type = %s real socket is %d\n" _ soc _
186: type == HTEvent_CLOSE ? "Event_Close" : "Event_Read" _
2.49 frystyk 187: HTChannel_socket(host->channel));
188: return HT_OK;
189: }
190:
2.13 frystyk 191: targetNet = (HTNet *)HTList_firstObject(host->pipeline);
192: if (targetNet) {
2.59 frystyk 193: HTTRACE(CORE_TRACE, "Host Event.. READ passed to `%s\'\n" _
2.28 frystyk 194: HTAnchor_physical(HTRequest_anchor(HTNet_request(targetNet))));
2.13 frystyk 195: if ((ret = (*targetNet->event.cbf)(HTChannel_socket(host->channel),
196: targetNet->event.param, type)) != HT_OK)
197: return ret;
198: }
199: if (targetNet == NULL && host->remainingRead > 0) {
2.59 frystyk 200: HTTRACE(CORE_TRACE, "HostEvent... Error: %d bytes left to read and nowhere to put them\n" _
2.31 frystyk 201: host->remainingRead);
2.13 frystyk 202: host->remainingRead = 0;
203: /*
204: ** Fall through to close the channel
205: */
206: }
207: /* call pipelined net object to eat all the data in the channel */
208: } while (host->remainingRead > 0);
209:
210: /* last target net should have set remainingRead to 0 */
211: if (targetNet)
212: return HT_OK;
213:
214: /* If there was notargetNet, it should be a close */
2.59 frystyk 215: HTTRACE(CORE_TRACE, "Host Event.. host %p `%s\' closed connection.\n" _
216: host _ host->hostname);
2.13 frystyk 217:
218: /* Is there garbage in the channel? Let's check: */
219: {
220: char buf[256];
221: int ret;
2.28 frystyk 222: memset(buf, '\0', sizeof(buf));
2.48 frystyk 223: while ((ret = NETREAD(HTChannel_socket(host->channel), buf, sizeof(buf)-1)) > 0) {
2.59 frystyk 224: HTTRACE(CORE_TRACE, "Host Event.. Host %p `%s\' had %d extraneous bytes: `%s\'\n" _
225: host _ host->hostname _ ret _ buf);
2.28 frystyk 226: memset(buf, '\0', sizeof(buf));
227: }
2.13 frystyk 228: }
229: HTHost_clearChannel(host, HT_OK);
2.28 frystyk 230: return HT_OK; /* extra garbage does not constitute an application error */
2.13 frystyk 231:
2.18 eric 232: } else if (type == HTEvent_WRITE || type == HTEvent_CONNECT) {
2.13 frystyk 233: HTNet * targetNet = (HTNet *)HTList_lastObject(host->pipeline);
234: if (targetNet) {
2.59 frystyk 235: HTTRACE(CORE_TRACE, "Host Event.. WRITE passed to `%s\'\n" _
2.28 frystyk 236: HTAnchor_physical(HTRequest_anchor(HTNet_request(targetNet))));
2.13 frystyk 237: return (*targetNet->event.cbf)(HTChannel_socket(host->channel), targetNet->event.param, type);
238: }
2.59 frystyk 239: HTTRACE(CORE_TRACE, "Host Event Host %p (`%s\') dispatched with event %s but doesn't have a target - %d requests made, %d requests in pipe, %d pending\n" _
240: host _
241: host ? host->hostname : "<null>" _
242: HTEvent_type2str(type) _
243: host ? host->reqsMade : -1 _
244: HTList_count(host->pipeline) _
2.56 frystyk 245: HTList_count(host->pending));
2.55 frystyk 246: #if 0
2.59 frystyk 247: HTDEBUGBREAK("Host Event.. Host %p (`%s\') dispatched with event %d\n" _
248: host _ host ? host->hostname : "<null>" _ type);
2.13 frystyk 249: return HT_ERROR;
2.55 frystyk 250: #else
251: return HT_OK;
252: #endif
2.14 frystyk 253: } else if (type == HTEvent_TIMEOUT) {
2.51 frystyk 254: killPipeline(host, HTEvent_TIMEOUT);
2.14 frystyk 255: } else {
2.59 frystyk 256: HTTRACE(CORE_TRACE, "Don't know how to handle OOB data from `%s\'?\n" _
2.44 frystyk 257: host->hostname);
2.14 frystyk 258: }
2.13 frystyk 259: return HT_OK;
260: }
261:
2.1 frystyk 262: /*
263: ** Search the host info cache for a host object or create a new one
264: ** and add it. Examples of host names are
265: **
266: ** www.w3.org
267: ** www.foo.com:8000
268: ** 18.52.0.18
269: **
270: ** Returns Host object or NULL if error. You may get back an already
271: ** existing host object - you're not guaranteed a new one each time.
272: */
2.15 eric 273: PUBLIC HTHost * HTHost_new (char * host, u_short u_port)
2.1 frystyk 274: {
275: HTList * list = NULL; /* Current list in cache */
276: HTHost * pres = NULL;
2.13 frystyk 277: int hash = 0;
2.1 frystyk 278: if (!host) {
2.59 frystyk 279: HTTRACE(CORE_TRACE, "Host info... Bad argument\n");
2.1 frystyk 280: return NULL;
281: }
282:
283: /* Find a hash for this host */
284: {
285: char *ptr;
286: for (ptr=host; *ptr; ptr++)
2.13 frystyk 287: hash = (int) ((hash * 3 + (*(unsigned char *) ptr)) % HOST_HASH_SIZE);
2.1 frystyk 288: if (!HostTable) {
2.13 frystyk 289: if ((HostTable = (HTList **) HT_CALLOC(HOST_HASH_SIZE,
2.1 frystyk 290: sizeof(HTList *))) == NULL)
291: HT_OUTOFMEM("HTHost_find");
292: }
293: if (!HostTable[hash]) HostTable[hash] = HTList_new();
294: list = HostTable[hash];
295: }
296:
297: /* Search the cache */
298: {
299: HTList * cur = list;
300: while ((pres = (HTHost *) HTList_nextObject(cur))) {
2.15 eric 301: if (!strcmp(pres->hostname, host) && u_port == pres->u_port) {
2.8 frystyk 302: if (HTHost_isIdle(pres) && time(NULL)>pres->ntime+HostTimeout){
2.59 frystyk 303: HTTRACE(CORE_TRACE, "Host info... Collecting host info %p\n" _ pres);
2.1 frystyk 304: delete_object(list, pres);
305: pres = NULL;
306: }
307: break;
308: }
309: }
310: }
311:
2.8 frystyk 312: /* If not found then create new Host object, else use existing one */
2.1 frystyk 313: if (pres) {
314: if (pres->channel) {
2.32 frystyk 315:
316: /*
317: ** If we have a TTL for this TCP connection then
318: ** check that we haven't passed it.
319: */
320: if (pres->expires > 0) {
321: time_t t = time(NULL);
2.51 frystyk 322: if (HTHost_isIdle(pres) && pres->expires < t) {
2.59 frystyk 323: HTTRACE(CORE_TRACE, "Host info... Persistent channel %p gotten cold\n" _
2.32 frystyk 324: pres->channel);
2.48 frystyk 325: HTHost_clearChannel(pres, HT_OK);
2.32 frystyk 326: } else {
2.53 frystyk 327: pres->expires = t + HTPassiveTimeout;
2.59 frystyk 328: HTTRACE(CORE_TRACE, "Host info... REUSING CHANNEL %p\n" _ pres->channel);
2.32 frystyk 329: }
330: }
2.55 frystyk 331: } else {
2.59 frystyk 332: HTTRACE(CORE_TRACE, "Host info... Found Host %p with no active channel\n" _ pres);
2.1 frystyk 333: }
334: } else {
335: if ((pres = (HTHost *) HT_CALLOC(1, sizeof(HTHost))) == NULL)
336: HT_OUTOFMEM("HTHost_add");
2.13 frystyk 337: pres->hash = hash;
2.1 frystyk 338: StrAllocCopy(pres->hostname, host);
2.15 eric 339: pres->u_port = u_port;
2.1 frystyk 340: pres->ntime = time(NULL);
2.8 frystyk 341: pres->mode = HT_TP_SINGLE;
2.26 frystyk 342: pres->delay = WriteDelay;
2.18 eric 343: {
2.26 frystyk 344: int i;
345: for (i = 0; i < HTEvent_TYPES; i++)
346: pres->events[i]= HTEvent_new(HostEvent, pres, HT_PRIORITY_MAX, EventTimeout);
2.18 eric 347: }
2.59 frystyk 348: HTTRACE(CORE_TRACE, "Host info... added `%s\' with host %p to list %p\n" _
349: host _ pres _ list);
2.1 frystyk 350: HTList_addObject(list, (void *) pres);
351: }
352: return pres;
2.9 frystyk 353: }
354:
2.15 eric 355: PUBLIC HTHost * HTHost_newWParse (HTRequest * request, char * url, u_short u_port)
2.13 frystyk 356: {
2.32 frystyk 357: char * port;
358: char * fullhost = NULL;
359: char * parsedHost = NULL;
360: SockA * sin;
361: HTHost * me;
362: char * proxy = HTRequest_proxy(request);
2.13 frystyk 363:
2.32 frystyk 364: fullhost = HTParse(proxy ? proxy : url, "", PARSE_HOST);
2.13 frystyk 365:
366: /* If there's an @ then use the stuff after it as a hostname */
2.32 frystyk 367: if (fullhost) {
368: char * at_sign;
369: if ((at_sign = strchr(fullhost, '@')) != NULL)
370: parsedHost = at_sign+1;
371: else
372: parsedHost = fullhost;
373: }
374: if (!parsedHost || !*parsedHost) {
375: HTRequest_addError(request, ERR_FATAL, NO, HTERR_NO_HOST,
2.52 frystyk 376: NULL, 0, "HTHost_newWParse");
2.32 frystyk 377: HT_FREE(fullhost);
378: return NULL;
379: }
2.55 frystyk 380:
381: /* See if the default port should be overridden */
382: if ((port = strchr(parsedHost, ':')) != NULL) {
2.32 frystyk 383: *port++ = '\0';
2.55 frystyk 384: if (*port && isdigit((int) *port)) u_port = (u_short) atol(port);
2.32 frystyk 385: }
2.59 frystyk 386: HTTRACE(PROT_TRACE, "HTHost parse Looking up `%s\' on port %u\n" _ parsedHost _ u_port);
2.55 frystyk 387:
2.32 frystyk 388: /* Find information about this host */
389: if ((me = HTHost_new(parsedHost, u_port)) == NULL) {
2.59 frystyk 390: HTTRACE(PROT_TRACE, "HTHost parse Can't get host info\n");
2.32 frystyk 391: me->tcpstate = TCP_ERROR;
392: return NULL;
393: }
394: sin = &me->sock_addr;
395: memset((void *) sin, '\0', sizeof(SockA));
2.13 frystyk 396: #ifdef DECNET
2.32 frystyk 397: sin->sdn_family = AF_DECnet;
398: net->sock_addr.sdn_objnum = port ? (unsigned char)(strtol(port, (char **) 0, 10)) : DNP_OBJ;
2.13 frystyk 399: #else /* Internet */
2.32 frystyk 400: sin->sin_family = AF_INET;
401: sin->sin_port = htons(u_port);
2.13 frystyk 402: #endif
2.32 frystyk 403: HT_FREE(fullhost); /* parsedHost points into fullhost */
404: return me;
2.13 frystyk 405: }
406:
2.9 frystyk 407: /*
408: ** Search the host info cache for a host object. Examples of host names:
409: **
410: ** www.w3.org
411: ** www.foo.com:8000
412: ** 18.52.0.18
413: **
414: ** Returns Host object or NULL if not found.
415: */
416: PUBLIC HTHost * HTHost_find (char * host)
417: {
418: HTList * list = NULL; /* Current list in cache */
419: HTHost * pres = NULL;
2.59 frystyk 420: HTTRACE(CORE_TRACE, "Host info... Looking for `%s\'\n" _ host ? host : "<null>");
2.9 frystyk 421:
422: /* Find a hash for this host */
423: if (host && HostTable) {
424: int hash = 0;
425: char *ptr;
426: for (ptr=host; *ptr; ptr++)
2.13 frystyk 427: hash = (int) ((hash * 3 + (*(unsigned char *) ptr)) % HOST_HASH_SIZE);
2.9 frystyk 428: if (!HostTable[hash]) return NULL;
429: list = HostTable[hash];
430:
431: /* Search the cache */
432: {
433: HTList * cur = list;
434: while ((pres = (HTHost *) HTList_nextObject(cur))) {
435: if (!strcmp(pres->hostname, host)) {
436: if (time(NULL) > pres->ntime + HostTimeout) {
2.59 frystyk 437: HTTRACE(CORE_TRACE, "Host info... Collecting host %p\n" _ pres);
2.9 frystyk 438: delete_object(list, pres);
439: pres = NULL;
440: } else {
2.59 frystyk 441: HTTRACE(CORE_TRACE, "Host info... Found `%s\'\n" _ host);
2.9 frystyk 442: }
443: return pres;
444: }
445: }
446: }
447: }
448: return NULL;
2.1 frystyk 449: }
450:
451: /*
2.62 frystyk 452: ** Cleanup the host list
453: */
454: PUBLIC void HTHost_deleteAll (void)
455: {
456: HTList * list;
457: HTHost * host;
458: int i;
459:
460: if (!HostTable)
461: return;
462:
463: for (i=0; i < HOST_HASH_SIZE; i++) {
464: list = HostTable[i];
465: if (!list) continue;
466:
467: while ((host = (HTHost *) HTList_removeFirstObject(list)) != NULL)
468: free_object(host);
469:
470: HTList_delete(list);
471: }
472:
473: HT_FREE(HostTable);
474: HostTable = NULL;
475: }
476:
477: /*
2.8 frystyk 478: ** Get and set the hostname of the remote host
479: */
480: PUBLIC char * HTHost_name (HTHost * host)
481: {
482: return host ? host->hostname : NULL;
483: }
484:
485: /*
2.1 frystyk 486: ** Get and set the type class of the remote host
487: */
488: PUBLIC char * HTHost_class (HTHost * host)
489: {
490: return host ? host->type : NULL;
491: }
492:
493: PUBLIC void HTHost_setClass (HTHost * host, char * s_class)
494: {
495: if (host && s_class) StrAllocCopy(host->type, s_class);
496: }
497:
498: /*
499: ** Get and set the version of the remote host
500: */
501: PUBLIC int HTHost_version (HTHost *host)
502: {
503: return host ? host->version : 0;
504: }
505:
506: PUBLIC void HTHost_setVersion (HTHost * host, int version)
507: {
508: if (host) host->version = version;
509: }
510:
511: /*
2.53 frystyk 512: ** Get and set the passive timeout for persistent entries.
2.1 frystyk 513: */
2.53 frystyk 514: PUBLIC BOOL HTHost_setPersistTimeout (time_t timeout)
2.1 frystyk 515: {
2.53 frystyk 516: if (timeout > 0) {
517: HTPassiveTimeout = timeout;
518: return YES;
519: }
520: return NO;
521: }
522:
523: PUBLIC time_t HTHost_persistTimeout (void)
524: {
525: return HTPassiveTimeout;
526: }
527:
528: /*
529: ** Get and set the active timeout for persistent entries.
530: */
531: PUBLIC BOOL HTHost_setActiveTimeout (ms_t timeout)
532: {
533: if (timeout > 1000) {
534: HTActiveTimeout = timeout;
535: return YES;
536: }
537: return NO;
2.1 frystyk 538: }
539:
2.53 frystyk 540: PUBLIC ms_t HTHost_activeTimeout (void)
2.1 frystyk 541: {
2.53 frystyk 542: return HTActiveTimeout;
2.1 frystyk 543: }
544:
545: /* Persistent Connection Expiration
546: ** --------------------------------
547: ** Should normally not be used. If, then use calendar time.
548: */
549: PUBLIC void HTHost_setPersistExpires (HTHost * host, time_t expires)
550: {
551: if (host) host->expires = expires;
552: }
553:
554: PUBLIC time_t HTHost_persistExpires (HTHost * host)
555: {
556: return host ? host->expires : -1;
557: }
558:
2.22 eric 559: PUBLIC void HTHost_setReqsPerConnection (HTHost * host, int reqs)
560: {
561: if (host) host->reqsPerConnection = reqs;
562: }
563:
564: PUBLIC int HTHost_reqsPerConnection (HTHost * host)
565: {
566: return host ? host->reqsPerConnection : -1;
567: }
568:
569: PUBLIC void HTHost_setReqsMade (HTHost * host, int reqs)
570: {
571: if (host) host->reqsMade = reqs;
572: }
573:
574: PUBLIC int HTHost_reqsMade (HTHost * host)
575: {
576: return host ? host->reqsMade : -1;
577: }
578:
2.1 frystyk 579: /*
2.6 frystyk 580: ** Public methods for this host
581: */
582: PUBLIC HTMethod HTHost_publicMethods (HTHost * me)
583: {
584: return me ? me->methods : METHOD_INVALID;
585: }
586:
587: PUBLIC void HTHost_setPublicMethods (HTHost * me, HTMethod methodset)
588: {
589: if (me) me->methods = methodset;
590: }
591:
592: PUBLIC void HTHost_appendPublicMethods (HTHost * me, HTMethod methodset)
593: {
594: if (me) me->methods |= methodset;
595: }
596:
597: /*
598: ** Get and set the server name of the remote host
599: */
600: PUBLIC char * HTHost_server (HTHost * host)
601: {
602: return host ? host->server : NULL;
603: }
604:
605: PUBLIC BOOL HTHost_setServer (HTHost * host, const char * server)
606: {
607: if (host && server) {
608: StrAllocCopy(host->server, server);
609: return YES;
610: }
611: return NO;
612: }
613:
614: /*
615: ** Get and set the userAgent name of the remote host
616: */
617: PUBLIC char * HTHost_userAgent (HTHost * host)
618: {
619: return host ? host->user_agent : NULL;
620: }
621:
622: PUBLIC BOOL HTHost_setUserAgent (HTHost * host, const char * userAgent)
623: {
624: if (host && userAgent) {
625: StrAllocCopy(host->user_agent, userAgent);
626: return YES;
2.12 frystyk 627: }
628: return NO;
629: }
630:
631: /*
632: ** Get and set acceptable range units
633: */
634: PUBLIC char * HTHost_rangeUnits (HTHost * host)
635: {
636: return host ? host->range_units : NULL;
637: }
638:
639: PUBLIC BOOL HTHost_setRangeUnits (HTHost * host, const char * units)
640: {
641: if (host && units) {
642: StrAllocCopy(host->range_units, units);
643: return YES;
644: }
645: return NO;
646: }
647:
648: /*
649: ** Checks whether a specific range unit is OK. We always say
650: ** YES except if we have a specific statement from the server that
651: ** it doesn't understand byte ranges - that is - it has sent "none"
652: ** in a "Accept-Range" response header
653: */
654: PUBLIC BOOL HTHost_isRangeUnitAcceptable (HTHost * host, const char * unit)
655: {
656: if (host && unit) {
657: #if 0
658: if (host->range_units) {
2.63 frystyk 659: char * start = HTStrCaseStr(host->range_units, "none");
2.12 frystyk 660:
661: /*
662: ** Check that "none" is infact a token. It could be part of some
663: ** other valid string, so we'd better check for it.
664: */
665: if (start) {
666:
667:
668: }
669: return NO;
670: }
671: #endif
672: return strcasecomp(unit, "bytes") ? NO : YES;
2.6 frystyk 673: }
674: return NO;
675: }
676:
2.1 frystyk 677: /*
678: ** As soon as we know that this host accepts persistent connections,
679: ** we associated the channel with the host.
680: ** We don't want more than MaxSockets-2 connections to be persistent in
681: ** order to avoid deadlock.
682: */
2.13 frystyk 683: PUBLIC BOOL HTHost_setPersistent (HTHost * host,
684: BOOL persistent,
685: HTTransportMode mode)
2.1 frystyk 686: {
2.13 frystyk 687: if (!host) return NO;
688:
689: if (!persistent) {
690: /*
691: ** We use the HT_IGNORE status code as we don't want to free
692: ** the stream at this point in time. The situation we want to
693: ** avoid is that we free the channel from within the stream pipe.
694: ** This will lead to an infinite look having the stream freing
695: ** itself.
696: */
2.30 frystyk 697: host->persistent = NO;
2.13 frystyk 698: return HTHost_clearChannel(host, HT_IGNORE);
699: }
700:
2.18 eric 701: /*
702: ** Set the host persistent if not already. Also update the mode to
703: ** the new one - it may have changed
704: */
705: HTHost_setMode(host, mode);
706: if (!host->persistent) {
2.13 frystyk 707: SOCKET sockfd = HTChannel_socket(host->channel);
2.8 frystyk 708: if (sockfd != INVSOC && HTNet_availablePersistentSockets() > 0) {
2.13 frystyk 709: host->persistent = YES;
2.53 frystyk 710: host->expires = time(NULL) + HTPassiveTimeout; /* Default timeout */
2.13 frystyk 711: HTChannel_setHost(host->channel, host);
2.8 frystyk 712: HTNet_increasePersistentSocket();
2.59 frystyk 713: HTTRACE(CORE_TRACE, "Host info... added host %p as persistent\n" _ host);
2.1 frystyk 714: return YES;
715: } else {
2.59 frystyk 716: HTTRACE(CORE_TRACE, "Host info... no room for persistent socket %d\n" _
2.7 frystyk 717: sockfd);
2.18 eric 718: return NO;
2.1 frystyk 719: }
2.18 eric 720: } else {
2.59 frystyk 721: HTTRACE(CORE_TRACE, "Host info... %p already persistent\n" _ host);
2.18 eric 722: return YES;
2.1 frystyk 723: }
724: return NO;
725: }
726:
727: /*
2.13 frystyk 728: ** Check whether we have a persistent channel or not
729: */
730: PUBLIC BOOL HTHost_isPersistent (HTHost * host)
731: {
732: return host && host->persistent;
733: }
734:
735: /*
2.1 frystyk 736: ** Find persistent channel associated with this host.
737: */
738: PUBLIC HTChannel * HTHost_channel (HTHost * host)
739: {
740: return host ? host->channel : NULL;
741: }
742:
2.30 frystyk 743:
2.1 frystyk 744: /*
2.30 frystyk 745: ** Check whether we have got a "close" notification, for example in the
746: ** connection header
747: */
748: PUBLIC BOOL HTHost_setCloseNotification (HTHost * host, BOOL mode)
749: {
750: if (host) {
751: host->close_notification = mode;
2.37 frystyk 752: return YES;
2.30 frystyk 753: }
754: return NO;
755: }
756:
757: PUBLIC BOOL HTHost_closeNotification (HTHost * host)
758: {
759: return host && host->close_notification;
760: }
761:
762: /*
2.1 frystyk 763: ** Clear the persistent entry by deleting the channel object. Note that
764: ** the channel object is only deleted if it's not used anymore.
765: */
2.8 frystyk 766: PUBLIC BOOL HTHost_clearChannel (HTHost * host, int status)
2.1 frystyk 767: {
768: if (host && host->channel) {
2.8 frystyk 769: HTChannel_setHost(host->channel, NULL);
2.10 frystyk 770:
2.13 frystyk 771: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_READ);
772: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_WRITE);
2.18 eric 773: host->registeredFor = 0;
2.13 frystyk 774:
2.10 frystyk 775: /*
776: ** We don't want to recursively delete ourselves so if we are
777: ** called from within the stream pipe then don't delete the channel
778: ** at this point
779: */
2.8 frystyk 780: HTChannel_delete(host->channel, status);
2.18 eric 781: host->expires = 0;
2.1 frystyk 782: host->channel = NULL;
2.22 eric 783: host->tcpstate = TCP_BEGIN;
784: host->reqsMade = 0;
2.32 frystyk 785: if (HTHost_isPersistent(host)) {
786: HTNet_decreasePersistentSocket();
787: host->persistent = NO;
788: }
789: host->close_notification = NO;
2.45 frystyk 790: host->broken_pipe = NO;
2.32 frystyk 791: host->mode = HT_TP_SINGLE;
792:
2.59 frystyk 793: HTTRACE(CORE_TRACE, "Host info... removed host %p as persistent\n" _ host);
2.32 frystyk 794:
795: if (!HTList_isEmpty(host->pending)) {
2.59 frystyk 796: HTTRACE(CORE_TRACE, "Host has %d object(s) pending - attempting launch\n" _ HTList_count(host->pending));
2.32 frystyk 797: HTHost_launchPending(host);
798: }
2.1 frystyk 799: return YES;
800: }
801: return NO;
802: }
803:
2.37 frystyk 804: PUBLIC BOOL HTHost_doRecover (HTHost * host)
805: {
806: return host ? host->do_recover : NO;
807: }
808:
2.1 frystyk 809: /*
2.18 eric 810: ** Move all entries in the pipeline and move the rest to the pending
811: ** queue. They will get launched at a later point in time.
812: */
813: PUBLIC BOOL HTHost_recoverPipe (HTHost * host)
814: {
815: if (host) {
816: int piped = HTList_count(host->pipeline);
2.64 frystyk 817:
818: /*
819: ** First check that we haven't already recovered more than we want
820: */
821: if (host->recovered > MAX_HOST_RECOVER) {
822: HTTRACE(CORE_TRACE, "Host recover %p already %d times - not doing it anymore\n" _ host _ host->recovered);
823: return NO;
824: }
825:
826: /*
827: ** If we decided to recover and actually have something in the pipe
828: ** then go ahead.
829: */
2.18 eric 830: if (piped > 0) {
831: int cnt;
2.24 frystyk 832: host->recovered++;
2.64 frystyk 833: HTTRACE(CORE_TRACE, "Host recover %p recovered %d times. Moving %d Net objects from pipe line to pending queue\n" _ host _ host->recovered _ piped);
2.18 eric 834:
835: /*
836: ** Unregister this host for all events
837: */
838: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_READ);
839: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_WRITE);
840: host->registeredFor = 0;
841:
842: /*
843: ** Set new mode to single until we know what is going on
844: */
845: host->mode = HT_TP_SINGLE;
846:
847: /*
848: ** Move all net objects from the net object to the pending queue.
849: */
850: if (!host->pending) host->pending = HTList_new();
851: for (cnt=0; cnt<piped; cnt++) {
852: HTNet * net = HTList_removeLastObject(host->pipeline);
2.59 frystyk 853: HTTRACE(CORE_TRACE, "Host recover Resetting net object %p\n" _ net);
2.18 eric 854: net->registeredFor = 0;
855: (*net->event.cbf)(HTChannel_socket(host->channel), net->event.param, HTEvent_RESET);
856: HTList_appendObject(host->pending, net);
2.57 frystyk 857: host->lock = net;
2.18 eric 858: }
2.37 frystyk 859:
2.18 eric 860: HTChannel_setSemaphore(host->channel, 0);
861: HTHost_clearChannel(host, HT_INTERRUPTED);
2.37 frystyk 862: host->do_recover = NO;
2.18 eric 863: }
2.24 frystyk 864: return YES;
2.18 eric 865: }
866: return NO;
867: }
868:
869: /*
2.51 frystyk 870: ** Terminate a pipeline prematurely, for example because of timeout,
871: ** interruption, etc.
872: */
873: PUBLIC BOOL HTHost_killPipe (HTHost * host)
874: {
875: return killPipeline(host, HTEvent_CLOSE);
876: }
877:
878: /*
2.8 frystyk 879: ** Handle the connection mode. The mode may change mode in the
880: ** middle of a connection.
881: */
882: PUBLIC HTTransportMode HTHost_mode (HTHost * host, BOOL * active)
883: {
884: return host ? host->mode : HT_TP_SINGLE;
885: }
886:
887: /*
888: ** If the new mode is lower than the old mode then adjust the pipeline
889: ** accordingly. That is, if we are going into single mode then move
890: ** all entries in the pipeline and move the rest to the pending
891: ** queue. They will get launched at a later point in time.
892: */
893: PUBLIC BOOL HTHost_setMode (HTHost * host, HTTransportMode mode)
894: {
895: if (host) {
896: /*
897: ** Check the new mode and see if we must adjust the queues.
898: */
899: if (mode == HT_TP_SINGLE && host->mode > mode) {
900: int piped = HTList_count(host->pipeline);
901: if (piped > 0) {
902: int cnt;
2.59 frystyk 903: HTTRACE(CORE_TRACE, "Host info... Moving %d Net objects from pipe line to pending queue\n" _ piped);
2.8 frystyk 904: if (!host->pending) host->pending = HTList_new();
905: for (cnt=0; cnt<piped; cnt++) {
2.18 eric 906: HTNet * net = HTList_removeLastObject(host->pipeline);
2.59 frystyk 907: HTTRACE(CORE_TRACE, "Host info... Resetting net object %p\n" _ net);
2.13 frystyk 908: (*net->event.cbf)(HTChannel_socket(host->channel), net->event.param, HTEvent_RESET);
2.8 frystyk 909: HTList_appendObject(host->pending, net);
910: }
2.18 eric 911: HTChannel_setSemaphore(host->channel, 0);
912: HTHost_clearChannel(host, HT_INTERRUPTED);
2.8 frystyk 913: }
2.24 frystyk 914: }
915:
916: /*
917: ** If we know that this host is bad then we don't allow anything than
918: ** single mode. We can't recover connections for the rest of our life
919: */
920: if (mode == HT_TP_PIPELINE && host->recovered > MAX_HOST_RECOVER) {
2.59 frystyk 921: HTTRACE(PROT_TRACE, "Host info... %p is bad for pipelining so we won't do it!!!\n" _
2.24 frystyk 922: host);
923: } else {
924: host->mode = mode;
2.59 frystyk 925: HTTRACE(PROT_TRACE, "Host info... New mode is %d for host %p\n" _ host->mode _ host);
2.24 frystyk 926: }
2.8 frystyk 927: }
928: return NO;
929: }
930:
931: /*
932: ** Check whether a host is idle meaning if it is ready for a new
933: ** request which depends on the mode of the host. If the host is
934: ** idle, i.e. ready for use then return YES else NO. If the host supports
935: ** persistent connections then still only return idle if no requests are
936: ** ongoing.
937: */
938: PUBLIC BOOL HTHost_isIdle (HTHost * host)
939: {
2.32 frystyk 940: return (host && HTList_isEmpty(host->pipeline));
2.8 frystyk 941: }
942:
2.13 frystyk 943: PRIVATE BOOL _roomInPipe (HTHost * host)
944: {
945: int count;
2.34 frystyk 946: if (!host ||
947: (host->reqsPerConnection && host->reqsMade >= host->reqsPerConnection) ||
2.45 frystyk 948: HTHost_closeNotification(host) || host->broken_pipe)
2.32 frystyk 949: return NO;
2.13 frystyk 950: count = HTList_count(host->pipeline);
951: switch (host->mode) {
952: case HT_TP_SINGLE:
953: return count <= 0;
954: case HT_TP_PIPELINE:
2.51 frystyk 955: return (host->recovered < MAX_HOST_RECOVER) ?
956: (count < MaxPipelinedRequests) : (count <= 0);
2.13 frystyk 957: case HT_TP_INTERLEAVE:
958: return YES;
959: }
960: return NO;
961: }
962:
2.8 frystyk 963: /*
964: ** Add a net object to the host object. If the host
965: ** is idle then add to active list (pipeline) else add
966: ** it to the pending list
967: ** Return HT_PENDING if we must pend, HT_OK, or HT_ERROR
968: */
969: PUBLIC int HTHost_addNet (HTHost * host, HTNet * net)
970: {
971: if (host && net) {
972: int status = HT_OK;
2.32 frystyk 973: BOOL doit = (host->doit==net);
2.8 frystyk 974:
2.18 eric 975: /*
976: ** If we don't have a socket already then check to see if we can get
977: ** one. Otherwise we put the host object into our pending queue.
2.52 frystyk 978: */
2.18 eric 979: if (!host->channel && HTNet_availableSockets() <= 0) {
2.56 frystyk 980:
981: /* Create list for pending Host objects */
2.8 frystyk 982: if (!PendHost) PendHost = HTList_new();
2.56 frystyk 983:
984: /* Add the host object ad pending if not already */
985: if (HTList_indexOf(PendHost, host) < 0) HTList_addObject(PendHost, host);
986:
987: /*
988: ** Add the Net object to the Host object. If it is the current Net
989: ** obejct holding the lock then add it to the beginning of the list.
990: ** Otherwise add it to the end
991: */
2.52 frystyk 992: if (!host->pending) host->pending = HTList_new();
2.56 frystyk 993: if (host->lock == net)
994: HTList_appendObject(host->pending, net);
995: else
996: HTList_addObject(host->pending, net);
997:
2.59 frystyk 998: HTTRACE(CORE_TRACE, "Host info... Added Net %p (request %p) as pending on pending Host %p, %d requests made, %d requests in pipe, %d pending\n" _
999: net _ net->request _ host _ host->reqsMade _
1000: HTList_count(host->pipeline) _ HTList_count(host->pending));
2.52 frystyk 1001: return HT_PENDING;
2.8 frystyk 1002: }
1003:
2.45 frystyk 1004: #if 0
2.18 eric 1005: /*
2.45 frystyk 1006: ** First check whether the net object is already on either queue.
1007: ** Do NOT add extra copies of the HTNet object to
1008: ** the pipeline or pending list (if it's already on the list).
1009: */
1010: if (HTList_indexOf(host->pipeline, net) >= 0) {
2.59 frystyk 1011: HTTRACE(CORE_TRACE, "Host info... The Net %p (request %p) is already in pipe,"
1012: " %d requests made, %d requests in pipe, %d pending\n" _
1013: net _ net->request _ host->reqsMade _
1014: HTList_count(host->pipeline) _
2.45 frystyk 1015: HTList_count(host->pending));
2.59 frystyk 1016: HTDEBUGBREAK("Net object %p registered multiple times in pipeline\n" _
2.45 frystyk 1017: net);
1018: return HT_OK;
1019: }
2.44 frystyk 1020:
2.45 frystyk 1021: if (HTList_indexOf(host->pending, net) >= 0) {
2.59 frystyk 1022: HTTRACE(CORE_TRACE, "Host info... The Net %p (request %p) already pending,"
1023: " %d requests made, %d requests in pipe, %d pending\n" _
1024: net _ net->request _ host->reqsMade _
1025: HTList_count(host->pipeline) _
2.45 frystyk 1026: HTList_count(host->pending));
2.59 frystyk 1027: HTDEBUGBREAK("Net object %p registered multiple times in pending queue\n" _
2.45 frystyk 1028: net);
1029:
1030: return HT_PENDING;
1031: }
1032: #endif
2.44 frystyk 1033:
1034: /*
2.18 eric 1035: ** Add net object to either active or pending queue.
1036: */
2.44 frystyk 1037: if (_roomInPipe(host) && (HTList_isEmpty(host->pending) || doit)) {
2.32 frystyk 1038: if (doit) host->doit = NULL;
2.8 frystyk 1039: if (!host->pipeline) host->pipeline = HTList_new();
1040: HTList_addObject(host->pipeline, net);
2.32 frystyk 1041: host->reqsMade++;
2.59 frystyk 1042: HTTRACE(CORE_TRACE, "Host info... Added Net %p (request %p) to pipe on Host %p, %d requests made, %d requests in pipe, %d pending\n" _
1043: net _ net->request _ host _ host->reqsMade _
1044: HTList_count(host->pipeline) _ HTList_count(host->pending));
2.18 eric 1045:
2.13 frystyk 1046: /*
2.30 frystyk 1047: ** If we have been idle then make sure we delete the timer
2.13 frystyk 1048: */
2.30 frystyk 1049: if (host->timer) {
1050: HTTimer_delete(host->timer);
1051: host->timer = NULL;
1052: }
2.40 kahan 1053:
1054: /*JK: New CBF function
1055: ** Call any user-defined callback to say the request will
1056: ** be processed.
1057: */
1058: HTHost_ActivateRequest (net);
2.30 frystyk 1059:
2.8 frystyk 1060: } else {
1061: if (!host->pending) host->pending = HTList_new();
2.44 frystyk 1062: HTList_addObject(host->pending, net);
2.59 frystyk 1063: HTTRACE(CORE_TRACE, "Host info... Added Net %p (request %p) as pending on Host %p, %d requests made, %d requests in pipe, %d pending\n" _
1064: net _ net->request _
1065: host _ host->reqsMade _
1066: HTList_count(host->pipeline) _ HTList_count(host->pending));
2.8 frystyk 1067: status = HT_PENDING;
1068: }
1069: return status;
1070: }
1071: return HT_ERROR;
1072: }
1073:
2.51 frystyk 1074: PRIVATE BOOL HTHost_free (HTHost * host, int status)
2.13 frystyk 1075: {
2.32 frystyk 1076: if (host->channel) {
2.13 frystyk 1077:
2.32 frystyk 1078: /* Check if we should keep the socket open */
1079: if (HTHost_isPersistent(host)) {
2.48 frystyk 1080: int piped = HTList_count(host->pipeline);
2.37 frystyk 1081: if (HTHost_closeNotification(host)) {
2.59 frystyk 1082: HTTRACE(CORE_TRACE, "Host Object. got close notifiation on socket %d\n" _
2.37 frystyk 1083: HTChannel_socket(host->channel));
1084:
1085: /*
1086: ** If more than a single element (this one) in the pipe
1087: ** then we have to recover gracefully
1088: */
1089: if (piped > 1) {
1090: host->reqsPerConnection = host->reqsMade - piped;
2.59 frystyk 1091: HTTRACE(CORE_TRACE, "%d requests made, %d in pipe, max %d requests pr connection\n" _
1092: host->reqsMade _ piped _ host->reqsPerConnection);
2.37 frystyk 1093: host->do_recover = YES;
2.38 frystyk 1094: HTChannel_delete(host->channel, status);
2.62 frystyk 1095: host->channel = NULL;
2.38 frystyk 1096: } else {
1097: HTChannel_setSemaphore(host->channel, 0);
1098: HTHost_clearChannel(host, status);
2.37 frystyk 1099: }
2.48 frystyk 1100: } else if (piped<=1 && host->reqsMade==host->reqsPerConnection) {
2.59 frystyk 1101: HTTRACE(CORE_TRACE, "Host Object. closing persistent socket %d\n" _
2.37 frystyk 1102: HTChannel_socket(host->channel));
2.32 frystyk 1103:
1104: /*
1105: ** By lowering the semaphore we make sure that the channel
1106: ** is gonna be deleted
1107: */
1108: HTChannel_setSemaphore(host->channel, 0);
1109: HTHost_clearChannel(host, status);
1110:
1111: } else {
2.59 frystyk 1112: HTTRACE(CORE_TRACE, "Host Object. keeping persistent socket %d\n" _
2.56 frystyk 1113: HTChannel_socket(host->channel));
2.62 frystyk 1114: if (HTChannel_delete(host->channel, status)) {
2.59 frystyk 1115: HTDEBUGBREAK("Host Event.. Channel unexpected deleted from host %p (%s)\n" _ host _ host->hostname);
2.62 frystyk 1116: host->channel = NULL;
1117: }
2.32 frystyk 1118: /*
1119: ** If connection is idle then set a timer so that we close the
1120: ** connection if idle too long
1121: */
2.48 frystyk 1122: if (piped<=1 && HTList_isEmpty(host->pending) && !host->timer) {
1123: host->timer = HTTimer_new(NULL, IdleTimeoutEvent,
2.53 frystyk 1124: host, HTActiveTimeout, YES, NO);
2.59 frystyk 1125: HTTRACE(PROT_TRACE, "Host........ Object %p going idle...\n" _ host);
2.32 frystyk 1126: }
1127: }
1128: return YES;
1129: } else {
2.59 frystyk 1130: HTTRACE(CORE_TRACE, "Host Object. closing socket %d\n" _ HTChannel_socket(host->channel));
2.47 frystyk 1131: HTChannel_setSemaphore(host->channel, 0);
2.41 frystyk 1132: HTHost_clearChannel(host, status);
2.32 frystyk 1133: }
2.13 frystyk 1134: }
2.32 frystyk 1135: return NO;
2.13 frystyk 1136: }
1137:
2.51 frystyk 1138: PUBLIC BOOL HTHost_deleteNet (HTHost * host, HTNet * net, int status)
2.8 frystyk 1139: {
1140: if (host && net) {
2.59 frystyk 1141: HTTRACE(CORE_TRACE, "Host info... Remove %p from pipe\n" _ net);
2.51 frystyk 1142:
1143: /* If the Net object is in the pipeline then also update the channel */
1144: if (host->pipeline && HTList_indexOf(host->pipeline, net) >= 0) {
1145: HTHost_free(host, status);
1146: HTList_removeObjectAll(host->pipeline, net);
1147: }
1148:
2.44 frystyk 1149: HTList_removeObjectAll(host->pending, net); /* just to make sure */
2.62 frystyk 1150: host->lock = HTList_firstObject(host->pending);
2.8 frystyk 1151: return YES;
1152: }
1153: return NO;
1154: }
1155:
1156: /*
1157: ** Handle pending host objects.
1158: ** There are two ways we can end up with pending reqyests:
1159: ** 1) If we are out of sockets then register new host objects as pending.
1160: ** 2) If we are pending on a connection then register new net objects as
1161: ** pending
1162: ** This set of functions handles pending host objects and can start new
1163: ** requests as resources get available
1164: */
1165:
1166: /*
1167: ** Check this host object for any pending requests and return the next
1168: ** registered Net object.
1169: */
1170: PUBLIC HTNet * HTHost_nextPendingNet (HTHost * host)
1171: {
1172: HTNet * net = NULL;
2.32 frystyk 1173: if (host && host->pending) {
2.18 eric 1174: /*JK 23/Sep/96 Bug correction. Associated the following lines to the
1175: **above if. There was a missing pair of brackets.
1176: */
1177: if ((net = (HTNet *) HTList_removeFirstObject(host->pending)) != NULL) {
2.59 frystyk 1178: HTTRACE(CORE_TRACE, "Host info... Popping %p from pending net queue on host %p\n" _
1179: net _ host);
2.33 frystyk 1180: #if 0
1181: {
1182: HTRequest * request = HTNet_request(net);
1183: char * uri = HTAnchor_address((HTAnchor *) HTRequest_anchor(request));
1184: fprintf(stderr, "Popping '%s'\n", uri);
1185: }
1186: #endif
2.32 frystyk 1187: host->doit = net;
2.18 eric 1188: }
2.8 frystyk 1189: }
1190: return net;
1191: }
1192:
1193: /*
2.13 frystyk 1194: ** Return the current list of pending host objects waiting for a socket
2.8 frystyk 1195: */
1196: PUBLIC HTHost * HTHost_nextPendingHost (void)
1197: {
1198: HTHost * host = NULL;
1199: if (PendHost) {
1200: if ((host = (HTHost *) HTList_removeFirstObject(PendHost)) != NULL)
2.59 frystyk 1201: HTTRACE(PROT_TRACE, "Host info... Popping %p from pending host queue\n" _
2.8 frystyk 1202: host);
1203: }
1204: return host;
1205: }
1206:
1207: /*
1208: ** Start the next pending request if any. First we look for pending
1209: ** requests for the same host and then we check for any other pending
1210: ** hosts
1211: */
1212: PUBLIC BOOL HTHost_launchPending (HTHost * host)
1213: {
2.52 frystyk 1214: HTNet * net = NULL;
2.8 frystyk 1215: if (!host) {
2.59 frystyk 1216: HTTRACE(PROT_TRACE, "Host info... Bad arguments\n");
2.8 frystyk 1217: return NO;
1218: }
1219:
1220: /*
2.52 frystyk 1221: ** In pipeline we can only have one doing writing at a time.
1222: ** We therefore check that there are no other Net object
1223: ** registered for write
2.8 frystyk 1224: */
2.52 frystyk 1225: if (host->mode == HT_TP_PIPELINE) {
1226: net = (HTNet *) HTList_lastObject(host->pipeline);
1227: if (net && net->registeredFor == HTEvent_WRITE)
1228: return NO;
1229: }
2.8 frystyk 1230:
2.52 frystyk 1231: /*
1232: ** Check the current Host object for pending Net objects
1233: */
1234: if (_roomInPipe(host) && DoPendingReqLaunch &&
1235: (net = HTHost_nextPendingNet(host))) {
1236: HTHost_ActivateRequest(net);
2.59 frystyk 1237: HTTRACE(CORE_TRACE, "Launch pending net object %p with %d reqs in pipe (%d reqs made)\n" _
1238: net _ HTList_count(host->pipeline) _ host->reqsMade);
2.52 frystyk 1239: return HTNet_execute(net, HTEvent_WRITE);
1240: }
2.13 frystyk 1241:
2.52 frystyk 1242: /*
1243: ** Check for other pending Host objects
1244: */
1245: if (DoPendingReqLaunch && HTNet_availableSockets() > 0) {
1246: HTHost * pending = HTHost_nextPendingHost();
1247: if (pending && (net = HTHost_nextPendingNet(pending))) {
1248: if (!pending->pipeline) pending->pipeline = HTList_new();
1249: HTList_addObject(pending->pipeline, net);
1250: host->reqsMade++;
2.59 frystyk 1251: HTTRACE(CORE_TRACE, "Launch pending host object %p, net %p with %d reqs in pipe (%d reqs made)\n" _
1252: pending _ net _ HTList_count(pending->pipeline) _ pending->reqsMade);
2.52 frystyk 1253: HTHost_ActivateRequest(net);
1254: return HTNet_execute(net, HTEvent_WRITE);
2.8 frystyk 1255: }
2.52 frystyk 1256: }
1257: return YES;
2.13 frystyk 1258: }
1259:
1260: PUBLIC HTNet * HTHost_firstNet (HTHost * host)
1261: {
1262: return (HTNet *) HTList_firstObject(host->pipeline);
2.60 frystyk 1263: }
1264:
1265: PUBLIC int HTHost_numberOfOutstandingNetObjects (HTHost * host)
1266: {
1267: return host ? HTList_count(host->pipeline) : -1;
1268: }
1269:
1270: PUBLIC int HTHost_numberOfPendingNetObjects (HTHost * host)
1271: {
1272: return host ? HTList_count(host->pending) : -1;
2.13 frystyk 1273: }
1274:
1275: /*
1276: ** The host event manager keeps track of the state of it's client engines
1277: ** (typically HTTPEvent), accepting multiple blocks on read or write from
1278: ** multiple pipelined engines. It then registers its own engine
1279: ** (HostEvent) with the event manager.
1280: */
1281: PUBLIC int HTHost_connect (HTHost * host, HTNet * net, char * url, HTProtocolId port)
1282: {
2.42 frystyk 1283: HTRequest * request = HTNet_request(net);
2.52 frystyk 1284: int status = HT_OK;
2.42 frystyk 1285: if (!host) {
1286: HTProtocol * protocol = HTNet_protocol(net);
1287: if ((host = HTHost_newWParse(request, url, HTProtocol_id(protocol))) == NULL)
2.45 frystyk 1288: return HT_ERROR;
2.52 frystyk 1289:
1290: /*
1291: ** If not already locked and without a channel
2.55 frystyk 1292: ** then lock the darn thing with the first Net object
1293: ** pending.
2.52 frystyk 1294: */
1295: if (!host->lock && !host->channel) {
2.55 frystyk 1296: HTNet * next_pending = NULL;
2.42 frystyk 1297: host->forceWriteFlush = YES;
2.55 frystyk 1298: host->lock = (next_pending = HTList_firstObject(host->pending)) ?
1299: next_pending : net;
2.59 frystyk 1300: HTTRACE(CORE_TRACE, "Host connect Grabbing lock on Host %p with %p\n" _ host _ host->lock);
2.42 frystyk 1301: }
1302: HTNet_setHost(net, host);
1303: }
1304:
1305: if (!host->lock || (host->lock && host->lock == net)) {
1306: status = HTDoConnect(net, url, port);
2.55 frystyk 1307: if (status == HT_PENDING)
1308: return HT_WOULD_BLOCK;
1309: else if (status == HT_WOULD_BLOCK) {
2.42 frystyk 1310: host->lock = net;
2.52 frystyk 1311: return status;
2.55 frystyk 1312: } else {
1313:
1314: /*
1315: ** See if there is already a new pending request that should
1316: ** take over the current lock
1317: */
1318: HTNet * next_pending = NULL;
1319: if ((next_pending = HTList_firstObject(host->pending))) {
2.59 frystyk 1320: HTTRACE(CORE_TRACE, "Host connect Changing lock on Host %p to %p\n" _
1321: host _ next_pending);
2.55 frystyk 1322: host->lock = next_pending;
1323: } else {
2.59 frystyk 1324: HTTRACE(CORE_TRACE, "Host connect Unlocking Host %p\n" _ host);
2.55 frystyk 1325: host->lock = NULL;
1326: }
1327: return status;
2.42 frystyk 1328: }
1329: } else {
2.59 frystyk 1330: HTTRACE(CORE_TRACE, "Host connect Host %p already locked with %p\n" _ host _ host->lock);
2.42 frystyk 1331: if ((status = HTHost_addNet(host, net)) == HT_PENDING) {
1332: return HT_PENDING;
1333: }
2.54 frystyk 1334: }
1335: return HT_ERROR; /* @@@ - some more deletion and stuff here? */
1336: }
1337:
1338: PUBLIC int HTHost_accept (HTHost * host, HTNet * net, HTNet ** accepted,
1339: char * url, HTProtocolId port)
1340: {
1341: HTRequest * request = HTNet_request(net);
1342: int status = HT_OK;
1343: if (!host) {
1344: HTProtocol * protocol = HTNet_protocol(net);
1345: if ((host = HTHost_newWParse(request, url, HTProtocol_id(protocol))) == NULL)
1346: return HT_ERROR;
1347: else {
1348: SockA *sin = &host->sock_addr;
1349: sin->sin_addr.s_addr = INADDR_ANY;
1350: }
1351:
1352: /*
1353: ** If not already locked and without a channel
1354: ** then lock the darn thing
1355: */
1356: if (!host->lock && !host->channel) {
1357: host->forceWriteFlush = YES;
1358: host->lock = net;
1359: }
1360: HTNet_setHost(net, host);
1361:
1362: /*
1363: ** Start listening on the socket
1364: */
1365: {
1366: status = HTDoListen(net, port, INVSOC, HT_BACKLOG);
1367: if (status != HT_OK) {
2.59 frystyk 1368: HTTRACE(CORE_TRACE, "Listen...... On Host %p resulted in %d\n" _ host _ status);
2.54 frystyk 1369: return HT_ERROR;
1370: }
1371: }
1372: }
1373:
1374: if (!host->lock || (host->lock && host->lock == net)) {
1375: status = HTDoAccept(net, accepted);
1376: if (status == HT_OK) {
1377:
1378: /* Add the new accepted Net object to the pipeline */
1379: HTList_appendObject(host->pipeline, *accepted);
1380:
1381: /* Unlock the accept object */
1382: host->lock = NULL;
1383:
1384: return HT_OK;
1385: }
1386: if (status == HT_WOULD_BLOCK) {
1387: host->lock = net;
1388: return status;
1389: }
1390: if (status == HT_PENDING) return HT_WOULD_BLOCK;
2.42 frystyk 1391: }
2.13 frystyk 1392: return HT_ERROR; /* @@@ - some more deletion and stuff here? */
1393: }
1394:
1395: /*
1396: ** Rules: SINGLE: one element in pipe, either reading or writing
1397: ** PIPE: n element in pipe, n-1 reading, 1 writing
1398: */
1399: PUBLIC int HTHost_register (HTHost * host, HTNet * net, HTEventType type)
1400: {
2.40 kahan 1401: HTEvent *event;
1402:
2.13 frystyk 1403: if (host && net) {
1404:
2.28 frystyk 1405: if (type == HTEvent_CLOSE) {
2.13 frystyk 1406:
2.28 frystyk 1407: /*
1408: ** Unregister this host for all events
1409: */
1410: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_READ);
1411: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_WRITE);
1412: host->registeredFor = 0;
2.13 frystyk 1413: return YES;
2.28 frystyk 1414:
1415: } else {
1416:
1417: /* net object may already be registered */
1418: if (HTEvent_BITS(type) & net->registeredFor)
1419: return NO;
1420: net->registeredFor ^= HTEvent_BITS(type);
1421:
1422: /* host object may already be registered */
1423: if (host->registeredFor & HTEvent_BITS(type))
1424: return YES;
1425: host->registeredFor ^= HTEvent_BITS(type);
2.46 frystyk 1426:
1427: #ifdef WWW_WIN_ASYNC
1428: /* Make sure we are registered for CLOSE on windows */
1429: event = *(host->events+HTEvent_INDEX(HTEvent_CLOSE));
1430: HTEvent_register(HTChannel_socket(host->channel), HTEvent_CLOSE, event);
1431: #endif /* WWW_WIN_ASYNC */
1432:
1433: /* JK: register a request in the event structure */
2.40 kahan 1434: event = *(host->events+HTEvent_INDEX(type));
1435: event->request = HTNet_request (net);
2.28 frystyk 1436: return HTEvent_register(HTChannel_socket(host->channel),
2.40 kahan 1437: type, event);
2.28 frystyk 1438: }
2.52 frystyk 1439:
1440: return YES;
2.13 frystyk 1441: }
2.65 ! frystyk 1442: HTTRACE(CORE_TRACE, "HTHost...... Don't register event with bad arguments\n");
2.13 frystyk 1443: return NO;
1444: }
1445:
1446: PUBLIC int HTHost_unregister (HTHost * host, HTNet * net, HTEventType type)
1447: {
1448: if (host && net) {
1449:
2.28 frystyk 1450: /* net object may not be registered */
2.13 frystyk 1451: if (!(HTEvent_BITS(type) & net->registeredFor))
1452: return NO;
1453: net->registeredFor ^= HTEvent_BITS(type);
1454:
2.28 frystyk 1455: /* host object may not be registered */
2.13 frystyk 1456: if (!(host->registeredFor & HTEvent_BITS(type)))
1457: return YES;
1458: host->registeredFor ^= HTEvent_BITS(type);
1459:
1460: /* stay registered for READ to catch a socket close */
1461: /* WRITE and CONNECT can be unregistered, though */
1462: if ((type == HTEvent_WRITE && isLastInPipe(host, net)) ||
1463: type == HTEvent_CONNECT)
1464: /* if we are blocked downstream, shut down the whole pipe */
1465: HTEvent_unregister(HTChannel_socket(host->channel), type);
1466: return YES;
1467: }
1468: return NO;
1469: }
1470:
1471: /*
1472: ** The reader tells HostEvent that it's stream did not finish the data
1473: */
1474: PUBLIC BOOL HTHost_setRemainingRead (HTHost * host, size_t remaining)
1475: {
1476: if (host == NULL) return NO;
1477: host->remainingRead = remaining;
2.59 frystyk 1478: HTTRACE(PROT_TRACE, "Host........ %d bytes remaining \n" _ remaining);
2.45 frystyk 1479: if (host->broken_pipe && remaining == 0) {
2.59 frystyk 1480: HTTRACE(PROT_TRACE, "Host........ Emtied out connection\n");
2.45 frystyk 1481: }
2.13 frystyk 1482: return YES;
1483: }
1484:
2.32 frystyk 1485: PUBLIC size_t HTHost_remainingRead (HTHost * host)
1486: {
1487: return host ? host->remainingRead : -1;
1488: }
1489:
2.13 frystyk 1490: PUBLIC SockA * HTHost_getSockAddr (HTHost * host)
1491: {
1492: if (!host) return NULL;
1493: return &host->sock_addr;
1494: }
1495:
1496: PUBLIC BOOL HTHost_setHome (HTHost * host, int home)
1497: {
1498: if (!host) return NO;
1499: host->home = home;
1500: return YES;
1501: }
1502:
1503: PUBLIC int HTHost_home (HTHost * host)
1504: {
1505: if (!host) return 0;
1506: return host->home;
1507: }
1508:
2.27 frystyk 1509: PUBLIC BOOL HTHost_setRetry (HTHost * host, int retry)
1510: {
1511: if (!host) return NO;
1512: host->retry = retry;
1513: return YES;
1514: }
1515:
1516: PUBLIC BOOL HTHost_decreaseRetry (HTHost * host)
1517: {
2.44 frystyk 1518: if (!host) return NO;
1519:
1520: if (host->retry > 0) host->retry--;
1521: return YES;
1522:
2.27 frystyk 1523: }
1524:
1525: PUBLIC int HTHost_retry (HTHost * host)
1526: {
1527: if (!host) return 0;
1528: return host->retry;
1529: }
1530:
2.13 frystyk 1531: #if 0 /* Is a macro right now */
2.21 frystyk 1532: PRIVATE BOOL HTHost_setDNS5 (HTHost * host, HTdns * dns)
2.13 frystyk 1533: {
1534: if (!host) return NO;
1535: host->dns = dns;
1536: return YES;
1537: }
1538: #endif
1539:
1540: PUBLIC BOOL HTHost_setChannel (HTHost * host, HTChannel * channel)
1541: {
1542: if (!host) return NO;
1543: host->channel = channel;
1544: return YES;
1545: }
1546:
1547: PUBLIC HTNet * HTHost_getReadNet(HTHost * host)
1548: {
2.38 frystyk 1549: return host ? (HTNet *) HTList_firstObject(host->pipeline) : NULL;
2.13 frystyk 1550: }
1551:
1552: PUBLIC HTNet * HTHost_getWriteNet(HTHost * host)
1553: {
1554: return host ? (HTNet *) HTList_lastObject(host->pipeline) : NULL;
1555: }
1556:
1557: /*
1558: ** Create the input stream and bind it to the channel
1559: ** Please read the description in the HTIOStream module for the parameters
1560: */
1561: PUBLIC HTInputStream * HTHost_getInput (HTHost * host, HTTransport * tp,
1562: void * param, int mode)
1563: {
1564: if (host && host->channel && tp) {
1565: HTChannel * ch = host->channel;
1566: HTInputStream * input = (*tp->input_new)(host, ch, param, mode);
1567: HTChannel_setInput(ch, input);
1568: return HTChannel_getChannelIStream(ch);
1569: }
2.59 frystyk 1570: HTTRACE(CORE_TRACE, "Host Object. Can't create input stream\n");
2.13 frystyk 1571: return NULL;
1572: }
1573:
1574: PUBLIC HTOutputStream * HTHost_getOutput (HTHost * host, HTTransport * tp,
1575: void * param, int mode)
1576: {
1577: if (host && host->channel && tp) {
1578: HTChannel * ch = host->channel;
1579: HTOutputStream * output = (*tp->output_new)(host, ch, param, mode);
1580: HTChannel_setOutput(ch, output);
1581: return output;
1582: }
2.59 frystyk 1583: HTTRACE(CORE_TRACE, "Host Object. Can't create output stream\n");
2.13 frystyk 1584: return NULL;
1585: }
1586:
1587: PUBLIC HTOutputStream * HTHost_output (HTHost * host, HTNet * net)
1588: {
1589: if (host && host->channel && net) {
1590: HTOutputStream * output = HTChannel_output(host->channel);
1591: return output;
1592: }
1593: return NULL;
1594: }
1595:
1596: PUBLIC int HTHost_read(HTHost * host, HTNet * net)
1597: {
1598: HTInputStream * input = HTChannel_input(host->channel);
1599: if (net != HTHost_getReadNet(host)) {
1600: HTHost_register(host, net, HTEvent_READ);
1601: return HT_WOULD_BLOCK;
1602: }
2.17 frystyk 1603:
1604: /*
1605: ** If there is no input channel then this can either mean that
1606: ** we have lost the channel or an error occurred. We return
1607: ** HT_CLOSED as this is a sign to the caller that we don't
1608: ** have a channel
1609: */
1610: return input ? (*input->isa->read)(input) : HT_CLOSED;
2.13 frystyk 1611: }
1612:
1613: PUBLIC BOOL HTHost_setConsumed(HTHost * host, size_t bytes)
1614: {
1615: HTInputStream * input;
1616: if (!host || !host->channel) return NO;
1617: if ((input = HTChannel_input(host->channel)) == NULL)
1618: return NO;
2.59 frystyk 1619: HTTRACE(CORE_TRACE, "Host........ passing %d bytes as consumed to %p\n" _ bytes _ input);
2.13 frystyk 1620: return (*input->isa->consumed)(input, bytes);
1621: }
1622:
1623: PUBLIC int HTHost_hash (HTHost * host)
1624: {
1625: return host ? host->hash : -1;
1626: }
1627:
2.26 frystyk 1628: PUBLIC BOOL HTHost_setWriteDelay (HTHost * host, ms_t delay)
2.13 frystyk 1629: {
2.26 frystyk 1630: if (host && delay >= 0) {
1631: host->delay = delay;
1632: return YES;
1633: }
1634: return NO;
1635: }
1636:
1637: PUBLIC ms_t HTHost_writeDelay (HTHost * host)
1638: {
1639: return host ? host->delay : 0;
1640: }
1641:
1642: PUBLIC int HTHost_findWriteDelay (HTHost * host, ms_t lastFlushTime, int buffSize)
1643: {
2.35 frystyk 1644: #if 0
2.15 eric 1645: unsigned short mtu;
2.18 eric 1646: int ret = -1;
2.15 eric 1647: int socket = HTChannel_socket(host->channel);
2.18 eric 1648: #ifndef WWW_MSWINDOWS
2.15 eric 1649: ret = ioctl(socket, 666, (unsigned long)&mtu);
2.18 eric 1650: #endif /* WWW_MSWINDOWS */
2.15 eric 1651: if ((ret == 0 && buffSize >= mtu) || host->forceWriteFlush)
2.13 frystyk 1652: return 0;
2.26 frystyk 1653: return host->delay;
2.35 frystyk 1654: #else
1655: return host->forceWriteFlush ? 0 : host->delay;
1656: #endif
2.13 frystyk 1657: }
1658:
2.26 frystyk 1659: PUBLIC BOOL HTHost_setDefaultWriteDelay (ms_t delay)
1660: {
1661: if (delay >= 0) {
1662: WriteDelay = delay;
2.59 frystyk 1663: HTTRACE(CORE_TRACE, "Host........ Default write delay is %d ms\n" _ delay);
2.26 frystyk 1664: return YES;
1665: }
1666: return NO;
1667: }
1668:
1669: PUBLIC ms_t HTHost_defaultWriteDelay (void)
1670: {
1671: return WriteDelay;
1672: }
1673:
2.13 frystyk 1674: PUBLIC int HTHost_forceFlush(HTHost * host)
1675: {
2.35 frystyk 1676: HTNet * targetNet = (HTNet *) HTList_lastObject(host->pipeline);
2.13 frystyk 1677: int ret;
2.35 frystyk 1678: if (targetNet == NULL) return HT_ERROR;
2.59 frystyk 1679: HTTRACE(CORE_TRACE, "Host Event.. FLUSH passed to `%s\'\n" _
2.28 frystyk 1680: HTAnchor_physical(HTRequest_anchor(HTNet_request(targetNet))));
2.13 frystyk 1681: host->forceWriteFlush = YES;
1682: ret = (*targetNet->event.cbf)(HTChannel_socket(host->channel), targetNet->event.param, HTEvent_FLUSH);
2.35 frystyk 1683: host->forceWriteFlush = NO;
2.13 frystyk 1684: return ret;
2.39 frystyk 1685: }
1686:
1687: /*
1688: ** Context pointer to be used as a user defined context
1689: */
1690: PUBLIC void HTHost_setContext (HTHost * me, void * context)
1691: {
2.40 kahan 1692: if (me) me->context = context;
2.39 frystyk 1693: }
1694:
1695: PUBLIC void * HTHost_context (HTHost * me)
1696: {
2.40 kahan 1697: return me ? me->context : NULL;
2.1 frystyk 1698: }
2.11 kahan 1699:
2.13 frystyk 1700: PUBLIC int HTHost_eventTimeout (void)
1701: {
1702: return EventTimeout;
1703: }
2.11 kahan 1704:
2.13 frystyk 1705: PUBLIC void HTHost_setEventTimeout (int millis)
1706: {
1707: EventTimeout = millis;
2.59 frystyk 1708: HTTRACE(CORE_TRACE, "Host........ Setting event timeout to %d ms\n" _ millis);
2.13 frystyk 1709: }
2.40 kahan 1710:
2.45 frystyk 1711: PUBLIC BOOL HTHost_setMaxPipelinedRequests (int max)
1712: {
1713: if (max > 1) {
1714: MaxPipelinedRequests = max;
1715: return YES;
1716: }
1717: return NO;
1718: }
2.40 kahan 1719:
2.45 frystyk 1720: PUBLIC int HTHost_maxPipelinedRequests (void)
2.40 kahan 1721: {
2.45 frystyk 1722: return MaxPipelinedRequests;
1723: }
1724:
1725: PUBLIC void HTHost_setActivateRequestCallback (HTHost_ActivateRequestCallback * cbf)
1726: {
2.59 frystyk 1727: HTTRACE(CORE_TRACE, "HTHost...... Registering %p\n" _ cbf);
2.40 kahan 1728: ActivateReqCBF = cbf;
1729: }
1730:
2.45 frystyk 1731: PRIVATE int HTHost_ActivateRequest (HTNet * net)
2.40 kahan 1732: {
2.45 frystyk 1733: HTRequest * request = NULL;
1734: if (!ActivateReqCBF) {
2.59 frystyk 1735: HTTRACE(CORE_TRACE, "HTHost...... No ActivateRequest callback handler registered\n");
2.45 frystyk 1736: return HT_ERROR;
1737: }
1738: request = HTNet_request(net);
1739: return (*ActivateReqCBF)(request);
2.40 kahan 1740: }
1741:
1742: PUBLIC void HTHost_disable_PendingReqLaunch (void)
1743: {
2.45 frystyk 1744: DoPendingReqLaunch = NO;
2.40 kahan 1745: }
1746:
1747: PUBLIC void HTHost_enable_PendingReqLaunch (void)
1748: {
2.45 frystyk 1749: DoPendingReqLaunch = YES;
2.40 kahan 1750: }
1751:
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