Annotation of libwww/Library/src/HTHost.c, revision 2.70
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.
2.70 ! kahan 6: ** @(#) $Id: HTHost.c,v 2.69 2000/06/07 14:36:35 kahan 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);
2.67 raff 157:
2.51 frystyk 158: HTTimer_delete(timer);
159: host->timer = NULL;
2.67 raff 160:
161: return HostEvent (sockfd, host, HTEvent_CLOSE);
2.51 frystyk 162: }
163:
164: /*
2.13 frystyk 165: ** HostEvent - host event manager - recieves events from the event
166: ** manager and dispatches them to the client net objects by calling the
167: ** net object's cbf.
168: **
169: */
170: PRIVATE int HostEvent (SOCKET soc, void * pVoid, HTEventType type)
171: {
172: HTHost * host = (HTHost *)pVoid;
173:
2.61 frystyk 174: if (type == HTEvent_READ || type == HTEvent_CLOSE || type == HTEvent_ACCEPT) {
2.13 frystyk 175: HTNet * targetNet;
176:
177: /* call the first net object */
178: do {
179: int ret;
2.49 frystyk 180:
181: /* netscape and apache servers can do a lazy close well after usage
182: * of previous socket has been dispensed by the library,
183: * the section below makes sure the event does not get miss attributed
184: */
2.66 frystyk 185: if (HTChannel_socket(host->channel) != soc && type != HTEvent_ACCEPT && !host->listening) {
186: HTTRACE(CORE_TRACE, "Host Event.. wild socket %d type = %s real socket is %d\n" _ soc _
187: type == HTEvent_CLOSE ? "Event_Close" : "Event_Read" _
188: HTChannel_socket(host->channel));
189: return HT_OK;
2.49 frystyk 190: }
191:
2.13 frystyk 192: targetNet = (HTNet *)HTList_firstObject(host->pipeline);
193: if (targetNet) {
2.59 frystyk 194: HTTRACE(CORE_TRACE, "Host Event.. READ passed to `%s\'\n" _
2.28 frystyk 195: HTAnchor_physical(HTRequest_anchor(HTNet_request(targetNet))));
2.13 frystyk 196: if ((ret = (*targetNet->event.cbf)(HTChannel_socket(host->channel),
197: targetNet->event.param, type)) != HT_OK)
198: return ret;
199: }
200: if (targetNet == NULL && host->remainingRead > 0) {
2.59 frystyk 201: HTTRACE(CORE_TRACE, "HostEvent... Error: %d bytes left to read and nowhere to put them\n" _
2.31 frystyk 202: host->remainingRead);
2.13 frystyk 203: host->remainingRead = 0;
204: /*
205: ** Fall through to close the channel
206: */
207: }
208: /* call pipelined net object to eat all the data in the channel */
209: } while (host->remainingRead > 0);
210:
211: /* last target net should have set remainingRead to 0 */
212: if (targetNet)
213: return HT_OK;
214:
215: /* If there was notargetNet, it should be a close */
2.59 frystyk 216: HTTRACE(CORE_TRACE, "Host Event.. host %p `%s\' closed connection.\n" _
217: host _ host->hostname);
2.13 frystyk 218:
219: /* Is there garbage in the channel? Let's check: */
220: {
221: char buf[256];
222: int ret;
2.28 frystyk 223: memset(buf, '\0', sizeof(buf));
2.68 kahan 224: if (HTChannel_socket(host->channel) != INVSOC) {
225: while ((ret = NETREAD(HTChannel_socket(host->channel), buf, sizeof(buf)-1)) > 0) {
2.59 frystyk 226: HTTRACE(CORE_TRACE, "Host Event.. Host %p `%s\' had %d extraneous bytes: `%s\'\n" _
2.68 kahan 227: host _ host->hostname _ ret _ buf);
2.28 frystyk 228: memset(buf, '\0', sizeof(buf));
2.68 kahan 229: }
230: }
2.13 frystyk 231: }
232: HTHost_clearChannel(host, HT_OK);
2.28 frystyk 233: return HT_OK; /* extra garbage does not constitute an application error */
2.13 frystyk 234:
2.18 eric 235: } else if (type == HTEvent_WRITE || type == HTEvent_CONNECT) {
2.13 frystyk 236: HTNet * targetNet = (HTNet *)HTList_lastObject(host->pipeline);
237: if (targetNet) {
2.59 frystyk 238: HTTRACE(CORE_TRACE, "Host Event.. WRITE passed to `%s\'\n" _
2.28 frystyk 239: HTAnchor_physical(HTRequest_anchor(HTNet_request(targetNet))));
2.13 frystyk 240: return (*targetNet->event.cbf)(HTChannel_socket(host->channel), targetNet->event.param, type);
241: }
2.59 frystyk 242: 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" _
243: host _
244: host ? host->hostname : "<null>" _
245: HTEvent_type2str(type) _
246: host ? host->reqsMade : -1 _
247: HTList_count(host->pipeline) _
2.56 frystyk 248: HTList_count(host->pending));
2.55 frystyk 249: #if 0
2.59 frystyk 250: HTDEBUGBREAK("Host Event.. Host %p (`%s\') dispatched with event %d\n" _
251: host _ host ? host->hostname : "<null>" _ type);
2.13 frystyk 252: return HT_ERROR;
2.55 frystyk 253: #else
254: return HT_OK;
255: #endif
2.14 frystyk 256: } else if (type == HTEvent_TIMEOUT) {
2.51 frystyk 257: killPipeline(host, HTEvent_TIMEOUT);
2.14 frystyk 258: } else {
2.59 frystyk 259: HTTRACE(CORE_TRACE, "Don't know how to handle OOB data from `%s\'?\n" _
2.44 frystyk 260: host->hostname);
2.14 frystyk 261: }
2.13 frystyk 262: return HT_OK;
263: }
264:
2.1 frystyk 265: /*
266: ** Search the host info cache for a host object or create a new one
267: ** and add it. Examples of host names are
268: **
269: ** www.w3.org
270: ** www.foo.com:8000
271: ** 18.52.0.18
272: **
273: ** Returns Host object or NULL if error. You may get back an already
274: ** existing host object - you're not guaranteed a new one each time.
275: */
2.15 eric 276: PUBLIC HTHost * HTHost_new (char * host, u_short u_port)
2.1 frystyk 277: {
278: HTList * list = NULL; /* Current list in cache */
279: HTHost * pres = NULL;
2.13 frystyk 280: int hash = 0;
2.1 frystyk 281: if (!host) {
2.59 frystyk 282: HTTRACE(CORE_TRACE, "Host info... Bad argument\n");
2.1 frystyk 283: return NULL;
284: }
285:
286: /* Find a hash for this host */
287: {
288: char *ptr;
289: for (ptr=host; *ptr; ptr++)
2.13 frystyk 290: hash = (int) ((hash * 3 + (*(unsigned char *) ptr)) % HOST_HASH_SIZE);
2.1 frystyk 291: if (!HostTable) {
2.13 frystyk 292: if ((HostTable = (HTList **) HT_CALLOC(HOST_HASH_SIZE,
2.1 frystyk 293: sizeof(HTList *))) == NULL)
294: HT_OUTOFMEM("HTHost_find");
295: }
296: if (!HostTable[hash]) HostTable[hash] = HTList_new();
297: list = HostTable[hash];
298: }
299:
300: /* Search the cache */
301: {
302: HTList * cur = list;
303: while ((pres = (HTHost *) HTList_nextObject(cur))) {
2.15 eric 304: if (!strcmp(pres->hostname, host) && u_port == pres->u_port) {
2.8 frystyk 305: if (HTHost_isIdle(pres) && time(NULL)>pres->ntime+HostTimeout){
2.59 frystyk 306: HTTRACE(CORE_TRACE, "Host info... Collecting host info %p\n" _ pres);
2.1 frystyk 307: delete_object(list, pres);
308: pres = NULL;
309: }
310: break;
311: }
312: }
313: }
314:
2.8 frystyk 315: /* If not found then create new Host object, else use existing one */
2.1 frystyk 316: if (pres) {
317: if (pres->channel) {
2.32 frystyk 318:
319: /*
320: ** If we have a TTL for this TCP connection then
321: ** check that we haven't passed it.
322: */
323: if (pres->expires > 0) {
324: time_t t = time(NULL);
2.51 frystyk 325: if (HTHost_isIdle(pres) && pres->expires < t) {
2.59 frystyk 326: HTTRACE(CORE_TRACE, "Host info... Persistent channel %p gotten cold\n" _
2.32 frystyk 327: pres->channel);
2.48 frystyk 328: HTHost_clearChannel(pres, HT_OK);
2.32 frystyk 329: } else {
2.53 frystyk 330: pres->expires = t + HTPassiveTimeout;
2.59 frystyk 331: HTTRACE(CORE_TRACE, "Host info... REUSING CHANNEL %p\n" _ pres->channel);
2.32 frystyk 332: }
333: }
2.55 frystyk 334: } else {
2.59 frystyk 335: HTTRACE(CORE_TRACE, "Host info... Found Host %p with no active channel\n" _ pres);
2.1 frystyk 336: }
337: } else {
338: if ((pres = (HTHost *) HT_CALLOC(1, sizeof(HTHost))) == NULL)
339: HT_OUTOFMEM("HTHost_add");
2.13 frystyk 340: pres->hash = hash;
2.1 frystyk 341: StrAllocCopy(pres->hostname, host);
2.15 eric 342: pres->u_port = u_port;
2.1 frystyk 343: pres->ntime = time(NULL);
2.8 frystyk 344: pres->mode = HT_TP_SINGLE;
2.26 frystyk 345: pres->delay = WriteDelay;
2.18 eric 346: {
2.26 frystyk 347: int i;
348: for (i = 0; i < HTEvent_TYPES; i++)
349: pres->events[i]= HTEvent_new(HostEvent, pres, HT_PRIORITY_MAX, EventTimeout);
2.18 eric 350: }
2.59 frystyk 351: HTTRACE(CORE_TRACE, "Host info... added `%s\' with host %p to list %p\n" _
352: host _ pres _ list);
2.1 frystyk 353: HTList_addObject(list, (void *) pres);
354: }
355: return pres;
2.9 frystyk 356: }
357:
2.15 eric 358: PUBLIC HTHost * HTHost_newWParse (HTRequest * request, char * url, u_short u_port)
2.13 frystyk 359: {
2.32 frystyk 360: char * port;
361: char * fullhost = NULL;
362: char * parsedHost = NULL;
363: SockA * sin;
364: HTHost * me;
365: char * proxy = HTRequest_proxy(request);
2.13 frystyk 366:
2.32 frystyk 367: fullhost = HTParse(proxy ? proxy : url, "", PARSE_HOST);
2.13 frystyk 368:
2.66 frystyk 369: /* If there's an @ then use the stuff after it as a hostname */
2.32 frystyk 370: if (fullhost) {
371: char * at_sign;
372: if ((at_sign = strchr(fullhost, '@')) != NULL)
373: parsedHost = at_sign+1;
374: else
375: parsedHost = fullhost;
376: }
377: if (!parsedHost || !*parsedHost) {
378: HTRequest_addError(request, ERR_FATAL, NO, HTERR_NO_HOST,
2.52 frystyk 379: NULL, 0, "HTHost_newWParse");
2.32 frystyk 380: HT_FREE(fullhost);
381: return NULL;
382: }
2.55 frystyk 383:
384: /* See if the default port should be overridden */
385: if ((port = strchr(parsedHost, ':')) != NULL) {
2.32 frystyk 386: *port++ = '\0';
2.55 frystyk 387: if (*port && isdigit((int) *port)) u_port = (u_short) atol(port);
2.32 frystyk 388: }
2.59 frystyk 389: HTTRACE(PROT_TRACE, "HTHost parse Looking up `%s\' on port %u\n" _ parsedHost _ u_port);
2.55 frystyk 390:
2.32 frystyk 391: /* Find information about this host */
392: if ((me = HTHost_new(parsedHost, u_port)) == NULL) {
2.59 frystyk 393: HTTRACE(PROT_TRACE, "HTHost parse Can't get host info\n");
2.32 frystyk 394: me->tcpstate = TCP_ERROR;
395: return NULL;
396: }
397: sin = &me->sock_addr;
398: memset((void *) sin, '\0', sizeof(SockA));
2.13 frystyk 399: #ifdef DECNET
2.32 frystyk 400: sin->sdn_family = AF_DECnet;
401: net->sock_addr.sdn_objnum = port ? (unsigned char)(strtol(port, (char **) 0, 10)) : DNP_OBJ;
2.13 frystyk 402: #else /* Internet */
2.32 frystyk 403: sin->sin_family = AF_INET;
404: sin->sin_port = htons(u_port);
2.13 frystyk 405: #endif
2.32 frystyk 406: HT_FREE(fullhost); /* parsedHost points into fullhost */
407: return me;
2.13 frystyk 408: }
409:
2.9 frystyk 410: /*
411: ** Search the host info cache for a host object. Examples of host names:
412: **
413: ** www.w3.org
414: ** www.foo.com:8000
415: ** 18.52.0.18
416: **
417: ** Returns Host object or NULL if not found.
418: */
419: PUBLIC HTHost * HTHost_find (char * host)
420: {
421: HTList * list = NULL; /* Current list in cache */
422: HTHost * pres = NULL;
2.59 frystyk 423: HTTRACE(CORE_TRACE, "Host info... Looking for `%s\'\n" _ host ? host : "<null>");
2.9 frystyk 424:
425: /* Find a hash for this host */
426: if (host && HostTable) {
427: int hash = 0;
428: char *ptr;
429: for (ptr=host; *ptr; ptr++)
2.13 frystyk 430: hash = (int) ((hash * 3 + (*(unsigned char *) ptr)) % HOST_HASH_SIZE);
2.9 frystyk 431: if (!HostTable[hash]) return NULL;
432: list = HostTable[hash];
433:
434: /* Search the cache */
435: {
436: HTList * cur = list;
437: while ((pres = (HTHost *) HTList_nextObject(cur))) {
438: if (!strcmp(pres->hostname, host)) {
439: if (time(NULL) > pres->ntime + HostTimeout) {
2.59 frystyk 440: HTTRACE(CORE_TRACE, "Host info... Collecting host %p\n" _ pres);
2.9 frystyk 441: delete_object(list, pres);
442: pres = NULL;
443: } else {
2.59 frystyk 444: HTTRACE(CORE_TRACE, "Host info... Found `%s\'\n" _ host);
2.9 frystyk 445: }
446: return pres;
447: }
448: }
449: }
450: }
451: return NULL;
2.1 frystyk 452: }
453:
454: /*
2.62 frystyk 455: ** Cleanup the host list
456: */
457: PUBLIC void HTHost_deleteAll (void)
458: {
459: HTList * list;
460: HTHost * host;
461: int i;
462:
463: if (!HostTable)
464: return;
465:
466: for (i=0; i < HOST_HASH_SIZE; i++) {
467: list = HostTable[i];
468: if (!list) continue;
469:
470: while ((host = (HTHost *) HTList_removeFirstObject(list)) != NULL)
471: free_object(host);
472:
473: HTList_delete(list);
474: }
475:
476: HT_FREE(HostTable);
477: HostTable = NULL;
478: }
479:
480: /*
2.8 frystyk 481: ** Get and set the hostname of the remote host
482: */
483: PUBLIC char * HTHost_name (HTHost * host)
484: {
485: return host ? host->hostname : NULL;
486: }
487:
488: /*
2.1 frystyk 489: ** Get and set the type class of the remote host
490: */
491: PUBLIC char * HTHost_class (HTHost * host)
492: {
493: return host ? host->type : NULL;
494: }
495:
496: PUBLIC void HTHost_setClass (HTHost * host, char * s_class)
497: {
498: if (host && s_class) StrAllocCopy(host->type, s_class);
499: }
500:
501: /*
502: ** Get and set the version of the remote host
503: */
504: PUBLIC int HTHost_version (HTHost *host)
505: {
506: return host ? host->version : 0;
507: }
508:
509: PUBLIC void HTHost_setVersion (HTHost * host, int version)
510: {
511: if (host) host->version = version;
512: }
513:
514: /*
2.53 frystyk 515: ** Get and set the passive timeout for persistent entries.
2.1 frystyk 516: */
2.53 frystyk 517: PUBLIC BOOL HTHost_setPersistTimeout (time_t timeout)
2.1 frystyk 518: {
2.53 frystyk 519: if (timeout > 0) {
520: HTPassiveTimeout = timeout;
521: return YES;
522: }
523: return NO;
524: }
525:
526: PUBLIC time_t HTHost_persistTimeout (void)
527: {
528: return HTPassiveTimeout;
529: }
530:
531: /*
532: ** Get and set the active timeout for persistent entries.
533: */
534: PUBLIC BOOL HTHost_setActiveTimeout (ms_t timeout)
535: {
536: if (timeout > 1000) {
537: HTActiveTimeout = timeout;
538: return YES;
539: }
540: return NO;
2.1 frystyk 541: }
542:
2.53 frystyk 543: PUBLIC ms_t HTHost_activeTimeout (void)
2.1 frystyk 544: {
2.53 frystyk 545: return HTActiveTimeout;
2.1 frystyk 546: }
547:
548: /* Persistent Connection Expiration
549: ** --------------------------------
550: ** Should normally not be used. If, then use calendar time.
551: */
552: PUBLIC void HTHost_setPersistExpires (HTHost * host, time_t expires)
553: {
554: if (host) host->expires = expires;
555: }
556:
557: PUBLIC time_t HTHost_persistExpires (HTHost * host)
558: {
559: return host ? host->expires : -1;
560: }
561:
2.22 eric 562: PUBLIC void HTHost_setReqsPerConnection (HTHost * host, int reqs)
563: {
564: if (host) host->reqsPerConnection = reqs;
565: }
566:
567: PUBLIC int HTHost_reqsPerConnection (HTHost * host)
568: {
569: return host ? host->reqsPerConnection : -1;
570: }
571:
572: PUBLIC void HTHost_setReqsMade (HTHost * host, int reqs)
573: {
574: if (host) host->reqsMade = reqs;
575: }
576:
577: PUBLIC int HTHost_reqsMade (HTHost * host)
578: {
579: return host ? host->reqsMade : -1;
580: }
581:
2.1 frystyk 582: /*
2.6 frystyk 583: ** Public methods for this host
584: */
585: PUBLIC HTMethod HTHost_publicMethods (HTHost * me)
586: {
587: return me ? me->methods : METHOD_INVALID;
588: }
589:
590: PUBLIC void HTHost_setPublicMethods (HTHost * me, HTMethod methodset)
591: {
592: if (me) me->methods = methodset;
593: }
594:
595: PUBLIC void HTHost_appendPublicMethods (HTHost * me, HTMethod methodset)
596: {
597: if (me) me->methods |= methodset;
598: }
599:
600: /*
601: ** Get and set the server name of the remote host
602: */
603: PUBLIC char * HTHost_server (HTHost * host)
604: {
605: return host ? host->server : NULL;
606: }
607:
608: PUBLIC BOOL HTHost_setServer (HTHost * host, const char * server)
609: {
610: if (host && server) {
611: StrAllocCopy(host->server, server);
612: return YES;
613: }
614: return NO;
615: }
616:
617: /*
618: ** Get and set the userAgent name of the remote host
619: */
620: PUBLIC char * HTHost_userAgent (HTHost * host)
621: {
622: return host ? host->user_agent : NULL;
623: }
624:
625: PUBLIC BOOL HTHost_setUserAgent (HTHost * host, const char * userAgent)
626: {
627: if (host && userAgent) {
628: StrAllocCopy(host->user_agent, userAgent);
629: return YES;
2.12 frystyk 630: }
631: return NO;
632: }
633:
634: /*
635: ** Get and set acceptable range units
636: */
637: PUBLIC char * HTHost_rangeUnits (HTHost * host)
638: {
639: return host ? host->range_units : NULL;
640: }
641:
642: PUBLIC BOOL HTHost_setRangeUnits (HTHost * host, const char * units)
643: {
644: if (host && units) {
645: StrAllocCopy(host->range_units, units);
646: return YES;
647: }
648: return NO;
649: }
650:
651: /*
652: ** Checks whether a specific range unit is OK. We always say
653: ** YES except if we have a specific statement from the server that
654: ** it doesn't understand byte ranges - that is - it has sent "none"
655: ** in a "Accept-Range" response header
656: */
657: PUBLIC BOOL HTHost_isRangeUnitAcceptable (HTHost * host, const char * unit)
658: {
659: if (host && unit) {
660: #if 0
661: if (host->range_units) {
2.63 frystyk 662: char * start = HTStrCaseStr(host->range_units, "none");
2.12 frystyk 663:
664: /*
665: ** Check that "none" is infact a token. It could be part of some
666: ** other valid string, so we'd better check for it.
667: */
668: if (start) {
669:
670:
671: }
672: return NO;
673: }
674: #endif
675: return strcasecomp(unit, "bytes") ? NO : YES;
2.6 frystyk 676: }
677: return NO;
678: }
679:
2.1 frystyk 680: /*
681: ** As soon as we know that this host accepts persistent connections,
682: ** we associated the channel with the host.
683: ** We don't want more than MaxSockets-2 connections to be persistent in
684: ** order to avoid deadlock.
685: */
2.13 frystyk 686: PUBLIC BOOL HTHost_setPersistent (HTHost * host,
687: BOOL persistent,
688: HTTransportMode mode)
2.1 frystyk 689: {
2.13 frystyk 690: if (!host) return NO;
691:
692: if (!persistent) {
693: /*
694: ** We use the HT_IGNORE status code as we don't want to free
695: ** the stream at this point in time. The situation we want to
696: ** avoid is that we free the channel from within the stream pipe.
697: ** This will lead to an infinite look having the stream freing
698: ** itself.
699: */
2.30 frystyk 700: host->persistent = NO;
2.13 frystyk 701: return HTHost_clearChannel(host, HT_IGNORE);
702: }
703:
2.18 eric 704: /*
705: ** Set the host persistent if not already. Also update the mode to
706: ** the new one - it may have changed
707: */
708: HTHost_setMode(host, mode);
709: if (!host->persistent) {
2.13 frystyk 710: SOCKET sockfd = HTChannel_socket(host->channel);
2.8 frystyk 711: if (sockfd != INVSOC && HTNet_availablePersistentSockets() > 0) {
2.13 frystyk 712: host->persistent = YES;
2.53 frystyk 713: host->expires = time(NULL) + HTPassiveTimeout; /* Default timeout */
2.13 frystyk 714: HTChannel_setHost(host->channel, host);
2.8 frystyk 715: HTNet_increasePersistentSocket();
2.59 frystyk 716: HTTRACE(CORE_TRACE, "Host info... added host %p as persistent\n" _ host);
2.1 frystyk 717: return YES;
718: } else {
2.59 frystyk 719: HTTRACE(CORE_TRACE, "Host info... no room for persistent socket %d\n" _
2.7 frystyk 720: sockfd);
2.18 eric 721: return NO;
2.1 frystyk 722: }
2.18 eric 723: } else {
2.59 frystyk 724: HTTRACE(CORE_TRACE, "Host info... %p already persistent\n" _ host);
2.18 eric 725: return YES;
2.1 frystyk 726: }
727: return NO;
728: }
729:
730: /*
2.13 frystyk 731: ** Check whether we have a persistent channel or not
732: */
733: PUBLIC BOOL HTHost_isPersistent (HTHost * host)
734: {
735: return host && host->persistent;
736: }
737:
738: /*
2.1 frystyk 739: ** Find persistent channel associated with this host.
740: */
741: PUBLIC HTChannel * HTHost_channel (HTHost * host)
742: {
743: return host ? host->channel : NULL;
744: }
745:
2.30 frystyk 746:
2.1 frystyk 747: /*
2.30 frystyk 748: ** Check whether we have got a "close" notification, for example in the
749: ** connection header
750: */
751: PUBLIC BOOL HTHost_setCloseNotification (HTHost * host, BOOL mode)
752: {
753: if (host) {
754: host->close_notification = mode;
2.37 frystyk 755: return YES;
2.30 frystyk 756: }
757: return NO;
758: }
759:
760: PUBLIC BOOL HTHost_closeNotification (HTHost * host)
761: {
762: return host && host->close_notification;
763: }
764:
765: /*
2.1 frystyk 766: ** Clear the persistent entry by deleting the channel object. Note that
767: ** the channel object is only deleted if it's not used anymore.
768: */
2.8 frystyk 769: PUBLIC BOOL HTHost_clearChannel (HTHost * host, int status)
2.1 frystyk 770: {
771: if (host && host->channel) {
2.8 frystyk 772: HTChannel_setHost(host->channel, NULL);
2.10 frystyk 773:
2.13 frystyk 774: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_READ);
775: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_WRITE);
2.18 eric 776: host->registeredFor = 0;
2.13 frystyk 777:
2.10 frystyk 778: /*
779: ** We don't want to recursively delete ourselves so if we are
780: ** called from within the stream pipe then don't delete the channel
781: ** at this point
782: */
2.8 frystyk 783: HTChannel_delete(host->channel, status);
2.18 eric 784: host->expires = 0;
2.1 frystyk 785: host->channel = NULL;
2.22 eric 786: host->tcpstate = TCP_BEGIN;
787: host->reqsMade = 0;
2.32 frystyk 788: if (HTHost_isPersistent(host)) {
789: HTNet_decreasePersistentSocket();
790: host->persistent = NO;
791: }
792: host->close_notification = NO;
2.45 frystyk 793: host->broken_pipe = NO;
2.32 frystyk 794: host->mode = HT_TP_SINGLE;
2.67 raff 795:
796: host->recovered = 0;
2.32 frystyk 797:
2.59 frystyk 798: HTTRACE(CORE_TRACE, "Host info... removed host %p as persistent\n" _ host);
2.32 frystyk 799:
800: if (!HTList_isEmpty(host->pending)) {
2.59 frystyk 801: HTTRACE(CORE_TRACE, "Host has %d object(s) pending - attempting launch\n" _ HTList_count(host->pending));
2.32 frystyk 802: HTHost_launchPending(host);
803: }
2.1 frystyk 804: return YES;
805: }
806: return NO;
807: }
808:
2.37 frystyk 809: PUBLIC BOOL HTHost_doRecover (HTHost * host)
810: {
811: return host ? host->do_recover : NO;
812: }
813:
2.1 frystyk 814: /*
2.18 eric 815: ** Move all entries in the pipeline and move the rest to the pending
816: ** queue. They will get launched at a later point in time.
817: */
818: PUBLIC BOOL HTHost_recoverPipe (HTHost * host)
819: {
820: if (host) {
821: int piped = HTList_count(host->pipeline);
2.64 frystyk 822:
823: /*
824: ** First check that we haven't already recovered more than we want
825: */
826: if (host->recovered > MAX_HOST_RECOVER) {
827: HTTRACE(CORE_TRACE, "Host recover %p already %d times - not doing it anymore\n" _ host _ host->recovered);
828: return NO;
829: }
830:
831: /*
832: ** If we decided to recover and actually have something in the pipe
833: ** then go ahead.
834: */
2.18 eric 835: if (piped > 0) {
836: int cnt;
2.24 frystyk 837: host->recovered++;
2.64 frystyk 838: 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 839:
840: /*
841: ** Unregister this host for all events
842: */
843: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_READ);
844: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_WRITE);
845: host->registeredFor = 0;
846:
847: /*
848: ** Set new mode to single until we know what is going on
849: */
850: host->mode = HT_TP_SINGLE;
851:
852: /*
853: ** Move all net objects from the net object to the pending queue.
854: */
855: if (!host->pending) host->pending = HTList_new();
856: for (cnt=0; cnt<piped; cnt++) {
857: HTNet * net = HTList_removeLastObject(host->pipeline);
2.59 frystyk 858: HTTRACE(CORE_TRACE, "Host recover Resetting net object %p\n" _ net);
2.18 eric 859: net->registeredFor = 0;
860: (*net->event.cbf)(HTChannel_socket(host->channel), net->event.param, HTEvent_RESET);
861: HTList_appendObject(host->pending, net);
2.57 frystyk 862: host->lock = net;
2.18 eric 863: }
2.37 frystyk 864:
2.18 eric 865: HTChannel_setSemaphore(host->channel, 0);
866: HTHost_clearChannel(host, HT_INTERRUPTED);
2.37 frystyk 867: host->do_recover = NO;
2.18 eric 868: }
2.24 frystyk 869: return YES;
2.18 eric 870: }
871: return NO;
872: }
873:
874: /*
2.51 frystyk 875: ** Terminate a pipeline prematurely, for example because of timeout,
876: ** interruption, etc.
877: */
878: PUBLIC BOOL HTHost_killPipe (HTHost * host)
879: {
880: return killPipeline(host, HTEvent_CLOSE);
881: }
882:
883: /*
2.8 frystyk 884: ** Handle the connection mode. The mode may change mode in the
885: ** middle of a connection.
886: */
887: PUBLIC HTTransportMode HTHost_mode (HTHost * host, BOOL * active)
888: {
889: return host ? host->mode : HT_TP_SINGLE;
890: }
891:
892: /*
893: ** If the new mode is lower than the old mode then adjust the pipeline
894: ** accordingly. That is, if we are going into single mode then move
895: ** all entries in the pipeline and move the rest to the pending
896: ** queue. They will get launched at a later point in time.
897: */
898: PUBLIC BOOL HTHost_setMode (HTHost * host, HTTransportMode mode)
899: {
900: if (host) {
901: /*
902: ** Check the new mode and see if we must adjust the queues.
903: */
904: if (mode == HT_TP_SINGLE && host->mode > mode) {
905: int piped = HTList_count(host->pipeline);
906: if (piped > 0) {
907: int cnt;
2.59 frystyk 908: HTTRACE(CORE_TRACE, "Host info... Moving %d Net objects from pipe line to pending queue\n" _ piped);
2.8 frystyk 909: if (!host->pending) host->pending = HTList_new();
910: for (cnt=0; cnt<piped; cnt++) {
2.18 eric 911: HTNet * net = HTList_removeLastObject(host->pipeline);
2.59 frystyk 912: HTTRACE(CORE_TRACE, "Host info... Resetting net object %p\n" _ net);
2.13 frystyk 913: (*net->event.cbf)(HTChannel_socket(host->channel), net->event.param, HTEvent_RESET);
2.8 frystyk 914: HTList_appendObject(host->pending, net);
915: }
2.18 eric 916: HTChannel_setSemaphore(host->channel, 0);
917: HTHost_clearChannel(host, HT_INTERRUPTED);
2.8 frystyk 918: }
2.24 frystyk 919: }
920:
921: /*
922: ** If we know that this host is bad then we don't allow anything than
923: ** single mode. We can't recover connections for the rest of our life
924: */
925: if (mode == HT_TP_PIPELINE && host->recovered > MAX_HOST_RECOVER) {
2.59 frystyk 926: HTTRACE(PROT_TRACE, "Host info... %p is bad for pipelining so we won't do it!!!\n" _
2.24 frystyk 927: host);
928: } else {
929: host->mode = mode;
2.59 frystyk 930: HTTRACE(PROT_TRACE, "Host info... New mode is %d for host %p\n" _ host->mode _ host);
2.24 frystyk 931: }
2.8 frystyk 932: }
933: return NO;
934: }
935:
936: /*
937: ** Check whether a host is idle meaning if it is ready for a new
938: ** request which depends on the mode of the host. If the host is
939: ** idle, i.e. ready for use then return YES else NO. If the host supports
940: ** persistent connections then still only return idle if no requests are
941: ** ongoing.
942: */
943: PUBLIC BOOL HTHost_isIdle (HTHost * host)
944: {
2.32 frystyk 945: return (host && HTList_isEmpty(host->pipeline));
2.8 frystyk 946: }
947:
2.13 frystyk 948: PRIVATE BOOL _roomInPipe (HTHost * host)
949: {
950: int count;
2.34 frystyk 951: if (!host ||
952: (host->reqsPerConnection && host->reqsMade >= host->reqsPerConnection) ||
2.45 frystyk 953: HTHost_closeNotification(host) || host->broken_pipe)
2.32 frystyk 954: return NO;
2.13 frystyk 955: count = HTList_count(host->pipeline);
956: switch (host->mode) {
957: case HT_TP_SINGLE:
958: return count <= 0;
959: case HT_TP_PIPELINE:
2.51 frystyk 960: return (host->recovered < MAX_HOST_RECOVER) ?
961: (count < MaxPipelinedRequests) : (count <= 0);
2.13 frystyk 962: case HT_TP_INTERLEAVE:
963: return YES;
964: }
965: return NO;
966: }
967:
2.8 frystyk 968: /*
969: ** Add a net object to the host object. If the host
970: ** is idle then add to active list (pipeline) else add
971: ** it to the pending list
972: ** Return HT_PENDING if we must pend, HT_OK, or HT_ERROR
973: */
974: PUBLIC int HTHost_addNet (HTHost * host, HTNet * net)
975: {
976: if (host && net) {
977: int status = HT_OK;
2.32 frystyk 978: BOOL doit = (host->doit==net);
2.8 frystyk 979:
2.18 eric 980: /*
981: ** If we don't have a socket already then check to see if we can get
982: ** one. Otherwise we put the host object into our pending queue.
2.52 frystyk 983: */
2.18 eric 984: if (!host->channel && HTNet_availableSockets() <= 0) {
2.56 frystyk 985:
986: /* Create list for pending Host objects */
2.8 frystyk 987: if (!PendHost) PendHost = HTList_new();
2.56 frystyk 988:
989: /* Add the host object ad pending if not already */
990: if (HTList_indexOf(PendHost, host) < 0) HTList_addObject(PendHost, host);
991:
992: /*
993: ** Add the Net object to the Host object. If it is the current Net
994: ** obejct holding the lock then add it to the beginning of the list.
995: ** Otherwise add it to the end
996: */
2.52 frystyk 997: if (!host->pending) host->pending = HTList_new();
2.56 frystyk 998: if (host->lock == net)
999: HTList_appendObject(host->pending, net);
1000: else
1001: HTList_addObject(host->pending, net);
1002:
2.59 frystyk 1003: 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" _
1004: net _ net->request _ host _ host->reqsMade _
1005: HTList_count(host->pipeline) _ HTList_count(host->pending));
2.52 frystyk 1006: return HT_PENDING;
2.8 frystyk 1007: }
1008:
2.45 frystyk 1009: #if 0
2.18 eric 1010: /*
2.45 frystyk 1011: ** First check whether the net object is already on either queue.
1012: ** Do NOT add extra copies of the HTNet object to
1013: ** the pipeline or pending list (if it's already on the list).
1014: */
1015: if (HTList_indexOf(host->pipeline, net) >= 0) {
2.59 frystyk 1016: HTTRACE(CORE_TRACE, "Host info... The Net %p (request %p) is already in pipe,"
1017: " %d requests made, %d requests in pipe, %d pending\n" _
1018: net _ net->request _ host->reqsMade _
1019: HTList_count(host->pipeline) _
2.45 frystyk 1020: HTList_count(host->pending));
2.59 frystyk 1021: HTDEBUGBREAK("Net object %p registered multiple times in pipeline\n" _
2.45 frystyk 1022: net);
1023: return HT_OK;
1024: }
2.44 frystyk 1025:
2.45 frystyk 1026: if (HTList_indexOf(host->pending, net) >= 0) {
2.59 frystyk 1027: HTTRACE(CORE_TRACE, "Host info... The Net %p (request %p) already pending,"
1028: " %d requests made, %d requests in pipe, %d pending\n" _
1029: net _ net->request _ host->reqsMade _
1030: HTList_count(host->pipeline) _
2.45 frystyk 1031: HTList_count(host->pending));
2.59 frystyk 1032: HTDEBUGBREAK("Net object %p registered multiple times in pending queue\n" _
2.45 frystyk 1033: net);
1034:
1035: return HT_PENDING;
1036: }
1037: #endif
2.44 frystyk 1038:
1039: /*
2.18 eric 1040: ** Add net object to either active or pending queue.
1041: */
2.44 frystyk 1042: if (_roomInPipe(host) && (HTList_isEmpty(host->pending) || doit)) {
2.32 frystyk 1043: if (doit) host->doit = NULL;
2.8 frystyk 1044: if (!host->pipeline) host->pipeline = HTList_new();
1045: HTList_addObject(host->pipeline, net);
2.32 frystyk 1046: host->reqsMade++;
2.59 frystyk 1047: 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" _
1048: net _ net->request _ host _ host->reqsMade _
1049: HTList_count(host->pipeline) _ HTList_count(host->pending));
2.18 eric 1050:
2.13 frystyk 1051: /*
2.30 frystyk 1052: ** If we have been idle then make sure we delete the timer
2.13 frystyk 1053: */
2.30 frystyk 1054: if (host->timer) {
1055: HTTimer_delete(host->timer);
1056: host->timer = NULL;
1057: }
2.40 kahan 1058:
1059: /*JK: New CBF function
1060: ** Call any user-defined callback to say the request will
1061: ** be processed.
1062: */
1063: HTHost_ActivateRequest (net);
2.30 frystyk 1064:
2.8 frystyk 1065: } else {
1066: if (!host->pending) host->pending = HTList_new();
2.44 frystyk 1067: HTList_addObject(host->pending, net);
2.59 frystyk 1068: 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" _
1069: net _ net->request _
1070: host _ host->reqsMade _
1071: HTList_count(host->pipeline) _ HTList_count(host->pending));
2.8 frystyk 1072: status = HT_PENDING;
1073: }
1074: return status;
1075: }
1076: return HT_ERROR;
1077: }
1078:
2.51 frystyk 1079: PRIVATE BOOL HTHost_free (HTHost * host, int status)
2.13 frystyk 1080: {
2.32 frystyk 1081: if (host->channel) {
2.13 frystyk 1082:
2.32 frystyk 1083: /* Check if we should keep the socket open */
1084: if (HTHost_isPersistent(host)) {
2.48 frystyk 1085: int piped = HTList_count(host->pipeline);
2.37 frystyk 1086: if (HTHost_closeNotification(host)) {
2.59 frystyk 1087: HTTRACE(CORE_TRACE, "Host Object. got close notifiation on socket %d\n" _
2.37 frystyk 1088: HTChannel_socket(host->channel));
1089:
1090: /*
1091: ** If more than a single element (this one) in the pipe
1092: ** then we have to recover gracefully
1093: */
1094: if (piped > 1) {
1095: host->reqsPerConnection = host->reqsMade - piped;
2.59 frystyk 1096: HTTRACE(CORE_TRACE, "%d requests made, %d in pipe, max %d requests pr connection\n" _
1097: host->reqsMade _ piped _ host->reqsPerConnection);
2.37 frystyk 1098: host->do_recover = YES;
2.70 ! kahan 1099: /* @@ JK: not clear yet if I need or not to set the channel to NULL. I think not */
! 1100: /* HTChannel_delete(host->channel, status); */
! 1101: if (HTChannel_delete(host->channel, status)) {
! 1102: HTTRACE(CORE_TRACE, "Host Event.. clearing channel on host %p (%s)\n" _ host _ host->hostname);
! 1103: host->channel = NULL;
! 1104: }
2.38 frystyk 1105: } else {
1106: HTChannel_setSemaphore(host->channel, 0);
1107: HTHost_clearChannel(host, status);
2.37 frystyk 1108: }
2.48 frystyk 1109: } else if (piped<=1 && host->reqsMade==host->reqsPerConnection) {
2.59 frystyk 1110: HTTRACE(CORE_TRACE, "Host Object. closing persistent socket %d\n" _
2.70 ! kahan 1111: HTChannel_socket(host->channel));
2.32 frystyk 1112:
1113: /*
1114: ** By lowering the semaphore we make sure that the channel
1115: ** is gonna be deleted
1116: */
1117: HTChannel_setSemaphore(host->channel, 0);
1118: HTHost_clearChannel(host, status);
1119:
1120: } else {
2.59 frystyk 1121: HTTRACE(CORE_TRACE, "Host Object. keeping persistent socket %d\n" _
2.70 ! kahan 1122: HTChannel_socket(host->channel));
2.62 frystyk 1123: if (HTChannel_delete(host->channel, status)) {
2.59 frystyk 1124: HTDEBUGBREAK("Host Event.. Channel unexpected deleted from host %p (%s)\n" _ host _ host->hostname);
2.62 frystyk 1125: host->channel = NULL;
1126: }
2.32 frystyk 1127: /*
1128: ** If connection is idle then set a timer so that we close the
1129: ** connection if idle too long
1130: */
2.48 frystyk 1131: if (piped<=1 && HTList_isEmpty(host->pending) && !host->timer) {
1132: host->timer = HTTimer_new(NULL, IdleTimeoutEvent,
2.53 frystyk 1133: host, HTActiveTimeout, YES, NO);
2.59 frystyk 1134: HTTRACE(PROT_TRACE, "Host........ Object %p going idle...\n" _ host);
2.32 frystyk 1135: }
1136: }
1137: return YES;
1138: } else {
2.59 frystyk 1139: HTTRACE(CORE_TRACE, "Host Object. closing socket %d\n" _ HTChannel_socket(host->channel));
2.47 frystyk 1140: HTChannel_setSemaphore(host->channel, 0);
2.41 frystyk 1141: HTHost_clearChannel(host, status);
2.32 frystyk 1142: }
2.13 frystyk 1143: }
2.32 frystyk 1144: return NO;
2.13 frystyk 1145: }
1146:
2.51 frystyk 1147: PUBLIC BOOL HTHost_deleteNet (HTHost * host, HTNet * net, int status)
2.8 frystyk 1148: {
1149: if (host && net) {
2.59 frystyk 1150: HTTRACE(CORE_TRACE, "Host info... Remove %p from pipe\n" _ net);
2.51 frystyk 1151:
1152: /* If the Net object is in the pipeline then also update the channel */
1153: if (host->pipeline && HTList_indexOf(host->pipeline, net) >= 0) {
1154: HTHost_free(host, status);
1155: HTList_removeObjectAll(host->pipeline, net);
1156: }
1157:
2.44 frystyk 1158: HTList_removeObjectAll(host->pending, net); /* just to make sure */
2.62 frystyk 1159: host->lock = HTList_firstObject(host->pending);
2.8 frystyk 1160: return YES;
1161: }
1162: return NO;
1163: }
1164:
1165: /*
1166: ** Handle pending host objects.
1167: ** There are two ways we can end up with pending reqyests:
1168: ** 1) If we are out of sockets then register new host objects as pending.
1169: ** 2) If we are pending on a connection then register new net objects as
1170: ** pending
1171: ** This set of functions handles pending host objects and can start new
1172: ** requests as resources get available
1173: */
1174:
1175: /*
1176: ** Check this host object for any pending requests and return the next
1177: ** registered Net object.
1178: */
1179: PUBLIC HTNet * HTHost_nextPendingNet (HTHost * host)
1180: {
1181: HTNet * net = NULL;
2.32 frystyk 1182: if (host && host->pending) {
2.18 eric 1183: /*JK 23/Sep/96 Bug correction. Associated the following lines to the
1184: **above if. There was a missing pair of brackets.
1185: */
1186: if ((net = (HTNet *) HTList_removeFirstObject(host->pending)) != NULL) {
2.59 frystyk 1187: HTTRACE(CORE_TRACE, "Host info... Popping %p from pending net queue on host %p\n" _
1188: net _ host);
2.33 frystyk 1189: #if 0
1190: {
1191: HTRequest * request = HTNet_request(net);
1192: char * uri = HTAnchor_address((HTAnchor *) HTRequest_anchor(request));
1193: fprintf(stderr, "Popping '%s'\n", uri);
1194: }
1195: #endif
2.32 frystyk 1196: host->doit = net;
2.18 eric 1197: }
2.8 frystyk 1198: }
1199: return net;
1200: }
1201:
1202: /*
2.13 frystyk 1203: ** Return the current list of pending host objects waiting for a socket
2.8 frystyk 1204: */
1205: PUBLIC HTHost * HTHost_nextPendingHost (void)
1206: {
1207: HTHost * host = NULL;
1208: if (PendHost) {
1209: if ((host = (HTHost *) HTList_removeFirstObject(PendHost)) != NULL)
2.59 frystyk 1210: HTTRACE(PROT_TRACE, "Host info... Popping %p from pending host queue\n" _
2.8 frystyk 1211: host);
1212: }
1213: return host;
1214: }
1215:
1216: /*
1217: ** Start the next pending request if any. First we look for pending
1218: ** requests for the same host and then we check for any other pending
1219: ** hosts
1220: */
1221: PUBLIC BOOL HTHost_launchPending (HTHost * host)
1222: {
2.52 frystyk 1223: HTNet * net = NULL;
2.8 frystyk 1224: if (!host) {
2.59 frystyk 1225: HTTRACE(PROT_TRACE, "Host info... Bad arguments\n");
2.8 frystyk 1226: return NO;
1227: }
1228:
1229: /*
2.52 frystyk 1230: ** In pipeline we can only have one doing writing at a time.
1231: ** We therefore check that there are no other Net object
1232: ** registered for write
2.8 frystyk 1233: */
2.52 frystyk 1234: if (host->mode == HT_TP_PIPELINE) {
1235: net = (HTNet *) HTList_lastObject(host->pipeline);
1236: if (net && net->registeredFor == HTEvent_WRITE)
1237: return NO;
1238: }
2.8 frystyk 1239:
2.52 frystyk 1240: /*
1241: ** Check the current Host object for pending Net objects
1242: */
1243: if (_roomInPipe(host) && DoPendingReqLaunch &&
1244: (net = HTHost_nextPendingNet(host))) {
1245: HTHost_ActivateRequest(net);
2.59 frystyk 1246: HTTRACE(CORE_TRACE, "Launch pending net object %p with %d reqs in pipe (%d reqs made)\n" _
1247: net _ HTList_count(host->pipeline) _ host->reqsMade);
2.52 frystyk 1248: return HTNet_execute(net, HTEvent_WRITE);
1249: }
2.13 frystyk 1250:
2.52 frystyk 1251: /*
1252: ** Check for other pending Host objects
1253: */
1254: if (DoPendingReqLaunch && HTNet_availableSockets() > 0) {
1255: HTHost * pending = HTHost_nextPendingHost();
1256: if (pending && (net = HTHost_nextPendingNet(pending))) {
1257: if (!pending->pipeline) pending->pipeline = HTList_new();
1258: HTList_addObject(pending->pipeline, net);
1259: host->reqsMade++;
2.59 frystyk 1260: HTTRACE(CORE_TRACE, "Launch pending host object %p, net %p with %d reqs in pipe (%d reqs made)\n" _
1261: pending _ net _ HTList_count(pending->pipeline) _ pending->reqsMade);
2.52 frystyk 1262: HTHost_ActivateRequest(net);
1263: return HTNet_execute(net, HTEvent_WRITE);
2.8 frystyk 1264: }
2.52 frystyk 1265: }
1266: return YES;
2.13 frystyk 1267: }
1268:
1269: PUBLIC HTNet * HTHost_firstNet (HTHost * host)
1270: {
1271: return (HTNet *) HTList_firstObject(host->pipeline);
2.60 frystyk 1272: }
1273:
1274: PUBLIC int HTHost_numberOfOutstandingNetObjects (HTHost * host)
1275: {
1276: return host ? HTList_count(host->pipeline) : -1;
1277: }
1278:
1279: PUBLIC int HTHost_numberOfPendingNetObjects (HTHost * host)
1280: {
1281: return host ? HTList_count(host->pending) : -1;
2.13 frystyk 1282: }
1283:
1284: /*
1285: ** The host event manager keeps track of the state of it's client engines
1286: ** (typically HTTPEvent), accepting multiple blocks on read or write from
1287: ** multiple pipelined engines. It then registers its own engine
1288: ** (HostEvent) with the event manager.
1289: */
2.66 frystyk 1290: PUBLIC int HTHost_connect (HTHost * host, HTNet * net, char * url)
2.13 frystyk 1291: {
2.42 frystyk 1292: HTRequest * request = HTNet_request(net);
2.52 frystyk 1293: int status = HT_OK;
2.42 frystyk 1294: if (!host) {
1295: HTProtocol * protocol = HTNet_protocol(net);
1296: if ((host = HTHost_newWParse(request, url, HTProtocol_id(protocol))) == NULL)
2.45 frystyk 1297: return HT_ERROR;
2.52 frystyk 1298:
1299: /*
1300: ** If not already locked and without a channel
2.55 frystyk 1301: ** then lock the darn thing with the first Net object
1302: ** pending.
2.52 frystyk 1303: */
1304: if (!host->lock && !host->channel) {
2.55 frystyk 1305: HTNet * next_pending = NULL;
2.42 frystyk 1306: host->forceWriteFlush = YES;
2.55 frystyk 1307: host->lock = (next_pending = HTList_firstObject(host->pending)) ?
1308: next_pending : net;
2.59 frystyk 1309: HTTRACE(CORE_TRACE, "Host connect Grabbing lock on Host %p with %p\n" _ host _ host->lock);
2.42 frystyk 1310: }
1311: HTNet_setHost(net, host);
1312: }
1313:
1314: if (!host->lock || (host->lock && host->lock == net)) {
2.66 frystyk 1315: status = HTDoConnect(net);
2.55 frystyk 1316: if (status == HT_PENDING)
1317: return HT_WOULD_BLOCK;
1318: else if (status == HT_WOULD_BLOCK) {
2.42 frystyk 1319: host->lock = net;
2.52 frystyk 1320: return status;
2.55 frystyk 1321: } else {
1322:
1323: /*
1324: ** See if there is already a new pending request that should
1325: ** take over the current lock
1326: */
1327: HTNet * next_pending = NULL;
1328: if ((next_pending = HTList_firstObject(host->pending))) {
2.59 frystyk 1329: HTTRACE(CORE_TRACE, "Host connect Changing lock on Host %p to %p\n" _
2.66 frystyk 1330: host _ next_pending);
2.55 frystyk 1331: host->lock = next_pending;
1332: } else {
2.59 frystyk 1333: HTTRACE(CORE_TRACE, "Host connect Unlocking Host %p\n" _ host);
2.55 frystyk 1334: host->lock = NULL;
1335: }
1336: return status;
2.42 frystyk 1337: }
1338: } else {
2.59 frystyk 1339: HTTRACE(CORE_TRACE, "Host connect Host %p already locked with %p\n" _ host _ host->lock);
2.42 frystyk 1340: if ((status = HTHost_addNet(host, net)) == HT_PENDING) {
1341: return HT_PENDING;
1342: }
2.54 frystyk 1343: }
1344: return HT_ERROR; /* @@@ - some more deletion and stuff here? */
1345: }
1346:
2.66 frystyk 1347: PUBLIC int HTHost_listen (HTHost * host, HTNet * net, char * url)
2.54 frystyk 1348: {
1349: HTRequest * request = HTNet_request(net);
1350: int status = HT_OK;
1351: if (!host) {
1352: HTProtocol * protocol = HTNet_protocol(net);
1353: if ((host = HTHost_newWParse(request, url, HTProtocol_id(protocol))) == NULL)
1354: return HT_ERROR;
1355:
1356: /*
1357: ** If not already locked and without a channel
2.66 frystyk 1358: ** then lock the darn thing with the first Net object
1359: ** pending.
2.54 frystyk 1360: */
1361: if (!host->lock && !host->channel) {
1362: host->forceWriteFlush = YES;
1363: host->lock = net;
1364: }
1365: HTNet_setHost(net, host);
1366: }
1367:
2.66 frystyk 1368: /*
1369: ** See if we already have a dedicated listen Net object. If not
1370: ** then create one.
1371: */
1372: if (!host->listening) host->listening = HTNet_new(host);
2.54 frystyk 1373:
2.66 frystyk 1374: /*
1375: ** Start listening on the Net object
1376: */
1377: status = HTDoListen(host->listening, net, HT_BACKLOG);
1378: if (status != HT_OK) {
1379: HTTRACE(CORE_TRACE, "Host listen. On Host %p resulted in %d\n" _ host _ status);
1380: return status;
1381: }
1382: return HT_OK;
1383: }
2.54 frystyk 1384:
2.66 frystyk 1385: PUBLIC int HTHost_accept (HTHost * host, HTNet * net, char * url)
1386: {
1387: int status = HT_OK;
1388: if (!host || !host->listening) {
1389: HTTRACE(CORE_TRACE, "Host accept. No host object or not listening on anything\n");
1390: return HT_ERROR;
1391: }
2.54 frystyk 1392:
2.66 frystyk 1393: if (!host->lock || (host->lock && host->lock == net)) {
1394: status = HTDoAccept(host->listening, net);
1395: if (status == HT_PENDING)
1396: return HT_WOULD_BLOCK;
1397: else if (status == HT_WOULD_BLOCK) {
2.54 frystyk 1398: host->lock = net;
1399: return status;
2.66 frystyk 1400: } else {
1401:
1402: /*
1403: ** See if there is already a new pending request that should
1404: ** take over the current lock
1405: */
1406: HTNet * next_pending = NULL;
1407: if ((next_pending = HTList_firstObject(host->pending))) {
1408: HTTRACE(CORE_TRACE, "Host connect Changing lock on Host %p to %p\n" _
1409: host _ next_pending);
1410: host->lock = next_pending;
1411: } else {
1412: HTTRACE(CORE_TRACE, "Host connect Unlocking Host %p\n" _ host);
1413: host->lock = NULL;
1414: }
1415: return status;
1416: }
1417: } else {
1418: HTTRACE(CORE_TRACE, "Host connect Host %p already locked with %p\n" _ host _ host->lock);
1419: if ((status = HTHost_addNet(host, net)) == HT_PENDING) {
1420: return HT_PENDING;
2.54 frystyk 1421: }
2.42 frystyk 1422: }
2.66 frystyk 1423: return HT_ERROR;
2.13 frystyk 1424: }
1425:
1426: /*
1427: ** Rules: SINGLE: one element in pipe, either reading or writing
1428: ** PIPE: n element in pipe, n-1 reading, 1 writing
1429: */
1430: PUBLIC int HTHost_register (HTHost * host, HTNet * net, HTEventType type)
1431: {
2.40 kahan 1432: HTEvent *event;
1433:
2.13 frystyk 1434: if (host && net) {
1435:
2.28 frystyk 1436: if (type == HTEvent_CLOSE) {
2.13 frystyk 1437:
2.28 frystyk 1438: /*
1439: ** Unregister this host for all events
1440: */
1441: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_READ);
1442: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_WRITE);
1443: host->registeredFor = 0;
2.13 frystyk 1444: return YES;
2.28 frystyk 1445:
1446: } else {
1447:
1448: /* net object may already be registered */
1449: if (HTEvent_BITS(type) & net->registeredFor)
1450: return NO;
1451: net->registeredFor ^= HTEvent_BITS(type);
1452:
1453: /* host object may already be registered */
1454: if (host->registeredFor & HTEvent_BITS(type))
1455: return YES;
1456: host->registeredFor ^= HTEvent_BITS(type);
2.46 frystyk 1457:
1458: #ifdef WWW_WIN_ASYNC
1459: /* Make sure we are registered for CLOSE on windows */
1460: event = *(host->events+HTEvent_INDEX(HTEvent_CLOSE));
1461: HTEvent_register(HTChannel_socket(host->channel), HTEvent_CLOSE, event);
1462: #endif /* WWW_WIN_ASYNC */
1463:
1464: /* JK: register a request in the event structure */
2.40 kahan 1465: event = *(host->events+HTEvent_INDEX(type));
1466: event->request = HTNet_request (net);
2.28 frystyk 1467: return HTEvent_register(HTChannel_socket(host->channel),
2.40 kahan 1468: type, event);
2.28 frystyk 1469: }
2.52 frystyk 1470:
1471: return YES;
2.13 frystyk 1472: }
2.65 frystyk 1473: HTTRACE(CORE_TRACE, "HTHost...... Don't register event with bad arguments\n");
2.13 frystyk 1474: return NO;
1475: }
1476:
1477: PUBLIC int HTHost_unregister (HTHost * host, HTNet * net, HTEventType type)
1478: {
1479: if (host && net) {
1480:
2.28 frystyk 1481: /* net object may not be registered */
2.13 frystyk 1482: if (!(HTEvent_BITS(type) & net->registeredFor))
1483: return NO;
1484: net->registeredFor ^= HTEvent_BITS(type);
1485:
2.28 frystyk 1486: /* host object may not be registered */
2.13 frystyk 1487: if (!(host->registeredFor & HTEvent_BITS(type)))
1488: return YES;
1489: host->registeredFor ^= HTEvent_BITS(type);
1490:
1491: /* stay registered for READ to catch a socket close */
1492: /* WRITE and CONNECT can be unregistered, though */
1493: if ((type == HTEvent_WRITE && isLastInPipe(host, net)) ||
1494: type == HTEvent_CONNECT)
1495: /* if we are blocked downstream, shut down the whole pipe */
1496: HTEvent_unregister(HTChannel_socket(host->channel), type);
1497: return YES;
1498: }
1499: return NO;
1500: }
1501:
1502: /*
1503: ** The reader tells HostEvent that it's stream did not finish the data
1504: */
1505: PUBLIC BOOL HTHost_setRemainingRead (HTHost * host, size_t remaining)
1506: {
1507: if (host == NULL) return NO;
1508: host->remainingRead = remaining;
2.59 frystyk 1509: HTTRACE(PROT_TRACE, "Host........ %d bytes remaining \n" _ remaining);
2.45 frystyk 1510: if (host->broken_pipe && remaining == 0) {
2.59 frystyk 1511: HTTRACE(PROT_TRACE, "Host........ Emtied out connection\n");
2.45 frystyk 1512: }
2.13 frystyk 1513: return YES;
1514: }
1515:
2.32 frystyk 1516: PUBLIC size_t HTHost_remainingRead (HTHost * host)
1517: {
1518: return host ? host->remainingRead : -1;
1519: }
1520:
2.13 frystyk 1521: PUBLIC SockA * HTHost_getSockAddr (HTHost * host)
1522: {
1523: if (!host) return NULL;
1524: return &host->sock_addr;
1525: }
1526:
1527: PUBLIC BOOL HTHost_setHome (HTHost * host, int home)
1528: {
1529: if (!host) return NO;
1530: host->home = home;
1531: return YES;
1532: }
1533:
1534: PUBLIC int HTHost_home (HTHost * host)
1535: {
1536: if (!host) return 0;
1537: return host->home;
1538: }
1539:
2.27 frystyk 1540: PUBLIC BOOL HTHost_setRetry (HTHost * host, int retry)
1541: {
1542: if (!host) return NO;
1543: host->retry = retry;
1544: return YES;
1545: }
1546:
1547: PUBLIC BOOL HTHost_decreaseRetry (HTHost * host)
1548: {
2.44 frystyk 1549: if (!host) return NO;
1550:
1551: if (host->retry > 0) host->retry--;
1552: return YES;
1553:
2.27 frystyk 1554: }
1555:
1556: PUBLIC int HTHost_retry (HTHost * host)
1557: {
1558: if (!host) return 0;
1559: return host->retry;
1560: }
1561:
2.13 frystyk 1562: #if 0 /* Is a macro right now */
2.21 frystyk 1563: PRIVATE BOOL HTHost_setDNS5 (HTHost * host, HTdns * dns)
2.13 frystyk 1564: {
1565: if (!host) return NO;
1566: host->dns = dns;
1567: return YES;
1568: }
1569: #endif
1570:
1571: PUBLIC BOOL HTHost_setChannel (HTHost * host, HTChannel * channel)
1572: {
1573: if (!host) return NO;
1574: host->channel = channel;
1575: return YES;
1576: }
1577:
1578: PUBLIC HTNet * HTHost_getReadNet(HTHost * host)
1579: {
2.38 frystyk 1580: return host ? (HTNet *) HTList_firstObject(host->pipeline) : NULL;
2.13 frystyk 1581: }
1582:
1583: PUBLIC HTNet * HTHost_getWriteNet(HTHost * host)
1584: {
1585: return host ? (HTNet *) HTList_lastObject(host->pipeline) : NULL;
1586: }
1587:
1588: /*
1589: ** Create the input stream and bind it to the channel
1590: ** Please read the description in the HTIOStream module for the parameters
1591: */
1592: PUBLIC HTInputStream * HTHost_getInput (HTHost * host, HTTransport * tp,
1593: void * param, int mode)
1594: {
1595: if (host && host->channel && tp) {
1596: HTChannel * ch = host->channel;
1597: HTInputStream * input = (*tp->input_new)(host, ch, param, mode);
1598: HTChannel_setInput(ch, input);
1599: return HTChannel_getChannelIStream(ch);
1600: }
2.59 frystyk 1601: HTTRACE(CORE_TRACE, "Host Object. Can't create input stream\n");
2.13 frystyk 1602: return NULL;
1603: }
1604:
1605: PUBLIC HTOutputStream * HTHost_getOutput (HTHost * host, HTTransport * tp,
1606: void * param, int mode)
1607: {
1608: if (host && host->channel && tp) {
1609: HTChannel * ch = host->channel;
1610: HTOutputStream * output = (*tp->output_new)(host, ch, param, mode);
1611: HTChannel_setOutput(ch, output);
1612: return output;
1613: }
2.59 frystyk 1614: HTTRACE(CORE_TRACE, "Host Object. Can't create output stream\n");
2.13 frystyk 1615: return NULL;
1616: }
1617:
1618: PUBLIC HTOutputStream * HTHost_output (HTHost * host, HTNet * net)
1619: {
1620: if (host && host->channel && net) {
1621: HTOutputStream * output = HTChannel_output(host->channel);
1622: return output;
1623: }
1624: return NULL;
1625: }
1626:
1627: PUBLIC int HTHost_read(HTHost * host, HTNet * net)
1628: {
1629: HTInputStream * input = HTChannel_input(host->channel);
1630: if (net != HTHost_getReadNet(host)) {
1631: HTHost_register(host, net, HTEvent_READ);
1632: return HT_WOULD_BLOCK;
1633: }
2.17 frystyk 1634:
1635: /*
1636: ** If there is no input channel then this can either mean that
1637: ** we have lost the channel or an error occurred. We return
1638: ** HT_CLOSED as this is a sign to the caller that we don't
1639: ** have a channel
1640: */
1641: return input ? (*input->isa->read)(input) : HT_CLOSED;
2.13 frystyk 1642: }
1643:
1644: PUBLIC BOOL HTHost_setConsumed(HTHost * host, size_t bytes)
1645: {
1646: HTInputStream * input;
1647: if (!host || !host->channel) return NO;
1648: if ((input = HTChannel_input(host->channel)) == NULL)
1649: return NO;
2.59 frystyk 1650: HTTRACE(CORE_TRACE, "Host........ passing %d bytes as consumed to %p\n" _ bytes _ input);
2.13 frystyk 1651: return (*input->isa->consumed)(input, bytes);
1652: }
1653:
1654: PUBLIC int HTHost_hash (HTHost * host)
1655: {
1656: return host ? host->hash : -1;
1657: }
1658:
2.26 frystyk 1659: PUBLIC BOOL HTHost_setWriteDelay (HTHost * host, ms_t delay)
2.13 frystyk 1660: {
2.26 frystyk 1661: if (host && delay >= 0) {
1662: host->delay = delay;
1663: return YES;
1664: }
1665: return NO;
1666: }
1667:
1668: PUBLIC ms_t HTHost_writeDelay (HTHost * host)
1669: {
1670: return host ? host->delay : 0;
1671: }
1672:
1673: PUBLIC int HTHost_findWriteDelay (HTHost * host, ms_t lastFlushTime, int buffSize)
1674: {
2.35 frystyk 1675: #if 0
2.15 eric 1676: unsigned short mtu;
2.18 eric 1677: int ret = -1;
2.15 eric 1678: int socket = HTChannel_socket(host->channel);
2.18 eric 1679: #ifndef WWW_MSWINDOWS
2.15 eric 1680: ret = ioctl(socket, 666, (unsigned long)&mtu);
2.18 eric 1681: #endif /* WWW_MSWINDOWS */
2.15 eric 1682: if ((ret == 0 && buffSize >= mtu) || host->forceWriteFlush)
2.13 frystyk 1683: return 0;
2.26 frystyk 1684: return host->delay;
2.35 frystyk 1685: #else
1686: return host->forceWriteFlush ? 0 : host->delay;
1687: #endif
2.13 frystyk 1688: }
1689:
2.26 frystyk 1690: PUBLIC BOOL HTHost_setDefaultWriteDelay (ms_t delay)
1691: {
1692: if (delay >= 0) {
1693: WriteDelay = delay;
2.59 frystyk 1694: HTTRACE(CORE_TRACE, "Host........ Default write delay is %d ms\n" _ delay);
2.26 frystyk 1695: return YES;
1696: }
1697: return NO;
1698: }
1699:
1700: PUBLIC ms_t HTHost_defaultWriteDelay (void)
1701: {
1702: return WriteDelay;
1703: }
1704:
2.13 frystyk 1705: PUBLIC int HTHost_forceFlush(HTHost * host)
1706: {
2.35 frystyk 1707: HTNet * targetNet = (HTNet *) HTList_lastObject(host->pipeline);
2.13 frystyk 1708: int ret;
2.35 frystyk 1709: if (targetNet == NULL) return HT_ERROR;
2.59 frystyk 1710: HTTRACE(CORE_TRACE, "Host Event.. FLUSH passed to `%s\'\n" _
2.28 frystyk 1711: HTAnchor_physical(HTRequest_anchor(HTNet_request(targetNet))));
2.13 frystyk 1712: host->forceWriteFlush = YES;
1713: ret = (*targetNet->event.cbf)(HTChannel_socket(host->channel), targetNet->event.param, HTEvent_FLUSH);
2.35 frystyk 1714: host->forceWriteFlush = NO;
2.13 frystyk 1715: return ret;
2.39 frystyk 1716: }
1717:
1718: /*
1719: ** Context pointer to be used as a user defined context
1720: */
1721: PUBLIC void HTHost_setContext (HTHost * me, void * context)
1722: {
2.40 kahan 1723: if (me) me->context = context;
2.39 frystyk 1724: }
1725:
1726: PUBLIC void * HTHost_context (HTHost * me)
1727: {
2.40 kahan 1728: return me ? me->context : NULL;
2.1 frystyk 1729: }
2.11 kahan 1730:
2.13 frystyk 1731: PUBLIC int HTHost_eventTimeout (void)
1732: {
1733: return EventTimeout;
1734: }
2.11 kahan 1735:
2.13 frystyk 1736: PUBLIC void HTHost_setEventTimeout (int millis)
1737: {
1738: EventTimeout = millis;
2.59 frystyk 1739: HTTRACE(CORE_TRACE, "Host........ Setting event timeout to %d ms\n" _ millis);
2.13 frystyk 1740: }
2.40 kahan 1741:
2.45 frystyk 1742: PUBLIC BOOL HTHost_setMaxPipelinedRequests (int max)
1743: {
1744: if (max > 1) {
1745: MaxPipelinedRequests = max;
1746: return YES;
1747: }
1748: return NO;
1749: }
2.40 kahan 1750:
2.45 frystyk 1751: PUBLIC int HTHost_maxPipelinedRequests (void)
2.40 kahan 1752: {
2.45 frystyk 1753: return MaxPipelinedRequests;
1754: }
1755:
1756: PUBLIC void HTHost_setActivateRequestCallback (HTHost_ActivateRequestCallback * cbf)
1757: {
2.59 frystyk 1758: HTTRACE(CORE_TRACE, "HTHost...... Registering %p\n" _ cbf);
2.40 kahan 1759: ActivateReqCBF = cbf;
1760: }
1761:
2.45 frystyk 1762: PRIVATE int HTHost_ActivateRequest (HTNet * net)
2.40 kahan 1763: {
2.45 frystyk 1764: HTRequest * request = NULL;
1765: if (!ActivateReqCBF) {
2.59 frystyk 1766: HTTRACE(CORE_TRACE, "HTHost...... No ActivateRequest callback handler registered\n");
2.45 frystyk 1767: return HT_ERROR;
1768: }
1769: request = HTNet_request(net);
1770: return (*ActivateReqCBF)(request);
2.40 kahan 1771: }
1772:
1773: PUBLIC void HTHost_disable_PendingReqLaunch (void)
1774: {
2.45 frystyk 1775: DoPendingReqLaunch = NO;
2.40 kahan 1776: }
1777:
1778: PUBLIC void HTHost_enable_PendingReqLaunch (void)
1779: {
2.45 frystyk 1780: DoPendingReqLaunch = YES;
2.40 kahan 1781: }
1782:
Webmaster
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to HTHost.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Public] / libwww / Library / src