Annotation of libwww/Library/src/HTHost.c, revision 2.67
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.
2.67 ! raff 6: ** @(#) $Id: HTHost.c,v 2.66 1999/07/07 15:43:28 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);
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));
2.48 frystyk 224: while ((ret = NETREAD(HTChannel_socket(host->channel), buf, sizeof(buf)-1)) > 0) {
2.59 frystyk 225: HTTRACE(CORE_TRACE, "Host Event.. Host %p `%s\' had %d extraneous bytes: `%s\'\n" _
226: host _ host->hostname _ ret _ buf);
2.28 frystyk 227: memset(buf, '\0', sizeof(buf));
228: }
2.13 frystyk 229: }
230: HTHost_clearChannel(host, HT_OK);
2.28 frystyk 231: return HT_OK; /* extra garbage does not constitute an application error */
2.13 frystyk 232:
2.18 eric 233: } else if (type == HTEvent_WRITE || type == HTEvent_CONNECT) {
2.13 frystyk 234: HTNet * targetNet = (HTNet *)HTList_lastObject(host->pipeline);
235: if (targetNet) {
2.59 frystyk 236: HTTRACE(CORE_TRACE, "Host Event.. WRITE passed to `%s\'\n" _
2.28 frystyk 237: HTAnchor_physical(HTRequest_anchor(HTNet_request(targetNet))));
2.13 frystyk 238: return (*targetNet->event.cbf)(HTChannel_socket(host->channel), targetNet->event.param, type);
239: }
2.59 frystyk 240: 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" _
241: host _
242: host ? host->hostname : "<null>" _
243: HTEvent_type2str(type) _
244: host ? host->reqsMade : -1 _
245: HTList_count(host->pipeline) _
2.56 frystyk 246: HTList_count(host->pending));
2.55 frystyk 247: #if 0
2.59 frystyk 248: HTDEBUGBREAK("Host Event.. Host %p (`%s\') dispatched with event %d\n" _
249: host _ host ? host->hostname : "<null>" _ type);
2.13 frystyk 250: return HT_ERROR;
2.55 frystyk 251: #else
252: return HT_OK;
253: #endif
2.14 frystyk 254: } else if (type == HTEvent_TIMEOUT) {
2.51 frystyk 255: killPipeline(host, HTEvent_TIMEOUT);
2.14 frystyk 256: } else {
2.59 frystyk 257: HTTRACE(CORE_TRACE, "Don't know how to handle OOB data from `%s\'?\n" _
2.44 frystyk 258: host->hostname);
2.14 frystyk 259: }
2.13 frystyk 260: return HT_OK;
261: }
262:
2.1 frystyk 263: /*
264: ** Search the host info cache for a host object or create a new one
265: ** and add it. Examples of host names are
266: **
267: ** www.w3.org
268: ** www.foo.com:8000
269: ** 18.52.0.18
270: **
271: ** Returns Host object or NULL if error. You may get back an already
272: ** existing host object - you're not guaranteed a new one each time.
273: */
2.15 eric 274: PUBLIC HTHost * HTHost_new (char * host, u_short u_port)
2.1 frystyk 275: {
276: HTList * list = NULL; /* Current list in cache */
277: HTHost * pres = NULL;
2.13 frystyk 278: int hash = 0;
2.1 frystyk 279: if (!host) {
2.59 frystyk 280: HTTRACE(CORE_TRACE, "Host info... Bad argument\n");
2.1 frystyk 281: return NULL;
282: }
283:
284: /* Find a hash for this host */
285: {
286: char *ptr;
287: for (ptr=host; *ptr; ptr++)
2.13 frystyk 288: hash = (int) ((hash * 3 + (*(unsigned char *) ptr)) % HOST_HASH_SIZE);
2.1 frystyk 289: if (!HostTable) {
2.13 frystyk 290: if ((HostTable = (HTList **) HT_CALLOC(HOST_HASH_SIZE,
2.1 frystyk 291: sizeof(HTList *))) == NULL)
292: HT_OUTOFMEM("HTHost_find");
293: }
294: if (!HostTable[hash]) HostTable[hash] = HTList_new();
295: list = HostTable[hash];
296: }
297:
298: /* Search the cache */
299: {
300: HTList * cur = list;
301: while ((pres = (HTHost *) HTList_nextObject(cur))) {
2.15 eric 302: if (!strcmp(pres->hostname, host) && u_port == pres->u_port) {
2.8 frystyk 303: if (HTHost_isIdle(pres) && time(NULL)>pres->ntime+HostTimeout){
2.59 frystyk 304: HTTRACE(CORE_TRACE, "Host info... Collecting host info %p\n" _ pres);
2.1 frystyk 305: delete_object(list, pres);
306: pres = NULL;
307: }
308: break;
309: }
310: }
311: }
312:
2.8 frystyk 313: /* If not found then create new Host object, else use existing one */
2.1 frystyk 314: if (pres) {
315: if (pres->channel) {
2.32 frystyk 316:
317: /*
318: ** If we have a TTL for this TCP connection then
319: ** check that we haven't passed it.
320: */
321: if (pres->expires > 0) {
322: time_t t = time(NULL);
2.51 frystyk 323: if (HTHost_isIdle(pres) && pres->expires < t) {
2.59 frystyk 324: HTTRACE(CORE_TRACE, "Host info... Persistent channel %p gotten cold\n" _
2.32 frystyk 325: pres->channel);
2.48 frystyk 326: HTHost_clearChannel(pres, HT_OK);
2.32 frystyk 327: } else {
2.53 frystyk 328: pres->expires = t + HTPassiveTimeout;
2.59 frystyk 329: HTTRACE(CORE_TRACE, "Host info... REUSING CHANNEL %p\n" _ pres->channel);
2.32 frystyk 330: }
331: }
2.55 frystyk 332: } else {
2.59 frystyk 333: HTTRACE(CORE_TRACE, "Host info... Found Host %p with no active channel\n" _ pres);
2.1 frystyk 334: }
335: } else {
336: if ((pres = (HTHost *) HT_CALLOC(1, sizeof(HTHost))) == NULL)
337: HT_OUTOFMEM("HTHost_add");
2.13 frystyk 338: pres->hash = hash;
2.1 frystyk 339: StrAllocCopy(pres->hostname, host);
2.15 eric 340: pres->u_port = u_port;
2.1 frystyk 341: pres->ntime = time(NULL);
2.8 frystyk 342: pres->mode = HT_TP_SINGLE;
2.26 frystyk 343: pres->delay = WriteDelay;
2.18 eric 344: {
2.26 frystyk 345: int i;
346: for (i = 0; i < HTEvent_TYPES; i++)
347: pres->events[i]= HTEvent_new(HostEvent, pres, HT_PRIORITY_MAX, EventTimeout);
2.18 eric 348: }
2.59 frystyk 349: HTTRACE(CORE_TRACE, "Host info... added `%s\' with host %p to list %p\n" _
350: host _ pres _ list);
2.1 frystyk 351: HTList_addObject(list, (void *) pres);
352: }
353: return pres;
2.9 frystyk 354: }
355:
2.15 eric 356: PUBLIC HTHost * HTHost_newWParse (HTRequest * request, char * url, u_short u_port)
2.13 frystyk 357: {
2.32 frystyk 358: char * port;
359: char * fullhost = NULL;
360: char * parsedHost = NULL;
361: SockA * sin;
362: HTHost * me;
363: char * proxy = HTRequest_proxy(request);
2.13 frystyk 364:
2.32 frystyk 365: fullhost = HTParse(proxy ? proxy : url, "", PARSE_HOST);
2.13 frystyk 366:
2.66 frystyk 367: /* If there's an @ then use the stuff after it as a hostname */
2.32 frystyk 368: if (fullhost) {
369: char * at_sign;
370: if ((at_sign = strchr(fullhost, '@')) != NULL)
371: parsedHost = at_sign+1;
372: else
373: parsedHost = fullhost;
374: }
375: if (!parsedHost || !*parsedHost) {
376: HTRequest_addError(request, ERR_FATAL, NO, HTERR_NO_HOST,
2.52 frystyk 377: NULL, 0, "HTHost_newWParse");
2.32 frystyk 378: HT_FREE(fullhost);
379: return NULL;
380: }
2.55 frystyk 381:
382: /* See if the default port should be overridden */
383: if ((port = strchr(parsedHost, ':')) != NULL) {
2.32 frystyk 384: *port++ = '\0';
2.55 frystyk 385: if (*port && isdigit((int) *port)) u_port = (u_short) atol(port);
2.32 frystyk 386: }
2.59 frystyk 387: HTTRACE(PROT_TRACE, "HTHost parse Looking up `%s\' on port %u\n" _ parsedHost _ u_port);
2.55 frystyk 388:
2.32 frystyk 389: /* Find information about this host */
390: if ((me = HTHost_new(parsedHost, u_port)) == NULL) {
2.59 frystyk 391: HTTRACE(PROT_TRACE, "HTHost parse Can't get host info\n");
2.32 frystyk 392: me->tcpstate = TCP_ERROR;
393: return NULL;
394: }
395: sin = &me->sock_addr;
396: memset((void *) sin, '\0', sizeof(SockA));
2.13 frystyk 397: #ifdef DECNET
2.32 frystyk 398: sin->sdn_family = AF_DECnet;
399: net->sock_addr.sdn_objnum = port ? (unsigned char)(strtol(port, (char **) 0, 10)) : DNP_OBJ;
2.13 frystyk 400: #else /* Internet */
2.32 frystyk 401: sin->sin_family = AF_INET;
402: sin->sin_port = htons(u_port);
2.13 frystyk 403: #endif
2.32 frystyk 404: HT_FREE(fullhost); /* parsedHost points into fullhost */
405: return me;
2.13 frystyk 406: }
407:
2.9 frystyk 408: /*
409: ** Search the host info cache for a host object. Examples of host names:
410: **
411: ** www.w3.org
412: ** www.foo.com:8000
413: ** 18.52.0.18
414: **
415: ** Returns Host object or NULL if not found.
416: */
417: PUBLIC HTHost * HTHost_find (char * host)
418: {
419: HTList * list = NULL; /* Current list in cache */
420: HTHost * pres = NULL;
2.59 frystyk 421: HTTRACE(CORE_TRACE, "Host info... Looking for `%s\'\n" _ host ? host : "<null>");
2.9 frystyk 422:
423: /* Find a hash for this host */
424: if (host && HostTable) {
425: int hash = 0;
426: char *ptr;
427: for (ptr=host; *ptr; ptr++)
2.13 frystyk 428: hash = (int) ((hash * 3 + (*(unsigned char *) ptr)) % HOST_HASH_SIZE);
2.9 frystyk 429: if (!HostTable[hash]) return NULL;
430: list = HostTable[hash];
431:
432: /* Search the cache */
433: {
434: HTList * cur = list;
435: while ((pres = (HTHost *) HTList_nextObject(cur))) {
436: if (!strcmp(pres->hostname, host)) {
437: if (time(NULL) > pres->ntime + HostTimeout) {
2.59 frystyk 438: HTTRACE(CORE_TRACE, "Host info... Collecting host %p\n" _ pres);
2.9 frystyk 439: delete_object(list, pres);
440: pres = NULL;
441: } else {
2.59 frystyk 442: HTTRACE(CORE_TRACE, "Host info... Found `%s\'\n" _ host);
2.9 frystyk 443: }
444: return pres;
445: }
446: }
447: }
448: }
449: return NULL;
2.1 frystyk 450: }
451:
452: /*
2.62 frystyk 453: ** Cleanup the host list
454: */
455: PUBLIC void HTHost_deleteAll (void)
456: {
457: HTList * list;
458: HTHost * host;
459: int i;
460:
461: if (!HostTable)
462: return;
463:
464: for (i=0; i < HOST_HASH_SIZE; i++) {
465: list = HostTable[i];
466: if (!list) continue;
467:
468: while ((host = (HTHost *) HTList_removeFirstObject(list)) != NULL)
469: free_object(host);
470:
471: HTList_delete(list);
472: }
473:
474: HT_FREE(HostTable);
475: HostTable = NULL;
476: }
477:
478: /*
2.8 frystyk 479: ** Get and set the hostname of the remote host
480: */
481: PUBLIC char * HTHost_name (HTHost * host)
482: {
483: return host ? host->hostname : NULL;
484: }
485:
486: /*
2.1 frystyk 487: ** Get and set the type class of the remote host
488: */
489: PUBLIC char * HTHost_class (HTHost * host)
490: {
491: return host ? host->type : NULL;
492: }
493:
494: PUBLIC void HTHost_setClass (HTHost * host, char * s_class)
495: {
496: if (host && s_class) StrAllocCopy(host->type, s_class);
497: }
498:
499: /*
500: ** Get and set the version of the remote host
501: */
502: PUBLIC int HTHost_version (HTHost *host)
503: {
504: return host ? host->version : 0;
505: }
506:
507: PUBLIC void HTHost_setVersion (HTHost * host, int version)
508: {
509: if (host) host->version = version;
510: }
511:
512: /*
2.53 frystyk 513: ** Get and set the passive timeout for persistent entries.
2.1 frystyk 514: */
2.53 frystyk 515: PUBLIC BOOL HTHost_setPersistTimeout (time_t timeout)
2.1 frystyk 516: {
2.53 frystyk 517: if (timeout > 0) {
518: HTPassiveTimeout = timeout;
519: return YES;
520: }
521: return NO;
522: }
523:
524: PUBLIC time_t HTHost_persistTimeout (void)
525: {
526: return HTPassiveTimeout;
527: }
528:
529: /*
530: ** Get and set the active timeout for persistent entries.
531: */
532: PUBLIC BOOL HTHost_setActiveTimeout (ms_t timeout)
533: {
534: if (timeout > 1000) {
535: HTActiveTimeout = timeout;
536: return YES;
537: }
538: return NO;
2.1 frystyk 539: }
540:
2.53 frystyk 541: PUBLIC ms_t HTHost_activeTimeout (void)
2.1 frystyk 542: {
2.53 frystyk 543: return HTActiveTimeout;
2.1 frystyk 544: }
545:
546: /* Persistent Connection Expiration
547: ** --------------------------------
548: ** Should normally not be used. If, then use calendar time.
549: */
550: PUBLIC void HTHost_setPersistExpires (HTHost * host, time_t expires)
551: {
552: if (host) host->expires = expires;
553: }
554:
555: PUBLIC time_t HTHost_persistExpires (HTHost * host)
556: {
557: return host ? host->expires : -1;
558: }
559:
2.22 eric 560: PUBLIC void HTHost_setReqsPerConnection (HTHost * host, int reqs)
561: {
562: if (host) host->reqsPerConnection = reqs;
563: }
564:
565: PUBLIC int HTHost_reqsPerConnection (HTHost * host)
566: {
567: return host ? host->reqsPerConnection : -1;
568: }
569:
570: PUBLIC void HTHost_setReqsMade (HTHost * host, int reqs)
571: {
572: if (host) host->reqsMade = reqs;
573: }
574:
575: PUBLIC int HTHost_reqsMade (HTHost * host)
576: {
577: return host ? host->reqsMade : -1;
578: }
579:
2.1 frystyk 580: /*
2.6 frystyk 581: ** Public methods for this host
582: */
583: PUBLIC HTMethod HTHost_publicMethods (HTHost * me)
584: {
585: return me ? me->methods : METHOD_INVALID;
586: }
587:
588: PUBLIC void HTHost_setPublicMethods (HTHost * me, HTMethod methodset)
589: {
590: if (me) me->methods = methodset;
591: }
592:
593: PUBLIC void HTHost_appendPublicMethods (HTHost * me, HTMethod methodset)
594: {
595: if (me) me->methods |= methodset;
596: }
597:
598: /*
599: ** Get and set the server name of the remote host
600: */
601: PUBLIC char * HTHost_server (HTHost * host)
602: {
603: return host ? host->server : NULL;
604: }
605:
606: PUBLIC BOOL HTHost_setServer (HTHost * host, const char * server)
607: {
608: if (host && server) {
609: StrAllocCopy(host->server, server);
610: return YES;
611: }
612: return NO;
613: }
614:
615: /*
616: ** Get and set the userAgent name of the remote host
617: */
618: PUBLIC char * HTHost_userAgent (HTHost * host)
619: {
620: return host ? host->user_agent : NULL;
621: }
622:
623: PUBLIC BOOL HTHost_setUserAgent (HTHost * host, const char * userAgent)
624: {
625: if (host && userAgent) {
626: StrAllocCopy(host->user_agent, userAgent);
627: return YES;
2.12 frystyk 628: }
629: return NO;
630: }
631:
632: /*
633: ** Get and set acceptable range units
634: */
635: PUBLIC char * HTHost_rangeUnits (HTHost * host)
636: {
637: return host ? host->range_units : NULL;
638: }
639:
640: PUBLIC BOOL HTHost_setRangeUnits (HTHost * host, const char * units)
641: {
642: if (host && units) {
643: StrAllocCopy(host->range_units, units);
644: return YES;
645: }
646: return NO;
647: }
648:
649: /*
650: ** Checks whether a specific range unit is OK. We always say
651: ** YES except if we have a specific statement from the server that
652: ** it doesn't understand byte ranges - that is - it has sent "none"
653: ** in a "Accept-Range" response header
654: */
655: PUBLIC BOOL HTHost_isRangeUnitAcceptable (HTHost * host, const char * unit)
656: {
657: if (host && unit) {
658: #if 0
659: if (host->range_units) {
2.63 frystyk 660: char * start = HTStrCaseStr(host->range_units, "none");
2.12 frystyk 661:
662: /*
663: ** Check that "none" is infact a token. It could be part of some
664: ** other valid string, so we'd better check for it.
665: */
666: if (start) {
667:
668:
669: }
670: return NO;
671: }
672: #endif
673: return strcasecomp(unit, "bytes") ? NO : YES;
2.6 frystyk 674: }
675: return NO;
676: }
677:
2.1 frystyk 678: /*
679: ** As soon as we know that this host accepts persistent connections,
680: ** we associated the channel with the host.
681: ** We don't want more than MaxSockets-2 connections to be persistent in
682: ** order to avoid deadlock.
683: */
2.13 frystyk 684: PUBLIC BOOL HTHost_setPersistent (HTHost * host,
685: BOOL persistent,
686: HTTransportMode mode)
2.1 frystyk 687: {
2.13 frystyk 688: if (!host) return NO;
689:
690: if (!persistent) {
691: /*
692: ** We use the HT_IGNORE status code as we don't want to free
693: ** the stream at this point in time. The situation we want to
694: ** avoid is that we free the channel from within the stream pipe.
695: ** This will lead to an infinite look having the stream freing
696: ** itself.
697: */
2.30 frystyk 698: host->persistent = NO;
2.13 frystyk 699: return HTHost_clearChannel(host, HT_IGNORE);
700: }
701:
2.18 eric 702: /*
703: ** Set the host persistent if not already. Also update the mode to
704: ** the new one - it may have changed
705: */
706: HTHost_setMode(host, mode);
707: if (!host->persistent) {
2.13 frystyk 708: SOCKET sockfd = HTChannel_socket(host->channel);
2.8 frystyk 709: if (sockfd != INVSOC && HTNet_availablePersistentSockets() > 0) {
2.13 frystyk 710: host->persistent = YES;
2.53 frystyk 711: host->expires = time(NULL) + HTPassiveTimeout; /* Default timeout */
2.13 frystyk 712: HTChannel_setHost(host->channel, host);
2.8 frystyk 713: HTNet_increasePersistentSocket();
2.59 frystyk 714: HTTRACE(CORE_TRACE, "Host info... added host %p as persistent\n" _ host);
2.1 frystyk 715: return YES;
716: } else {
2.59 frystyk 717: HTTRACE(CORE_TRACE, "Host info... no room for persistent socket %d\n" _
2.7 frystyk 718: sockfd);
2.18 eric 719: return NO;
2.1 frystyk 720: }
2.18 eric 721: } else {
2.59 frystyk 722: HTTRACE(CORE_TRACE, "Host info... %p already persistent\n" _ host);
2.18 eric 723: return YES;
2.1 frystyk 724: }
725: return NO;
726: }
727:
728: /*
2.13 frystyk 729: ** Check whether we have a persistent channel or not
730: */
731: PUBLIC BOOL HTHost_isPersistent (HTHost * host)
732: {
733: return host && host->persistent;
734: }
735:
736: /*
2.1 frystyk 737: ** Find persistent channel associated with this host.
738: */
739: PUBLIC HTChannel * HTHost_channel (HTHost * host)
740: {
741: return host ? host->channel : NULL;
742: }
743:
2.30 frystyk 744:
2.1 frystyk 745: /*
2.30 frystyk 746: ** Check whether we have got a "close" notification, for example in the
747: ** connection header
748: */
749: PUBLIC BOOL HTHost_setCloseNotification (HTHost * host, BOOL mode)
750: {
751: if (host) {
752: host->close_notification = mode;
2.37 frystyk 753: return YES;
2.30 frystyk 754: }
755: return NO;
756: }
757:
758: PUBLIC BOOL HTHost_closeNotification (HTHost * host)
759: {
760: return host && host->close_notification;
761: }
762:
763: /*
2.1 frystyk 764: ** Clear the persistent entry by deleting the channel object. Note that
765: ** the channel object is only deleted if it's not used anymore.
766: */
2.8 frystyk 767: PUBLIC BOOL HTHost_clearChannel (HTHost * host, int status)
2.1 frystyk 768: {
769: if (host && host->channel) {
2.8 frystyk 770: HTChannel_setHost(host->channel, NULL);
2.10 frystyk 771:
2.13 frystyk 772: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_READ);
773: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_WRITE);
2.18 eric 774: host->registeredFor = 0;
2.13 frystyk 775:
2.10 frystyk 776: /*
777: ** We don't want to recursively delete ourselves so if we are
778: ** called from within the stream pipe then don't delete the channel
779: ** at this point
780: */
2.8 frystyk 781: HTChannel_delete(host->channel, status);
2.18 eric 782: host->expires = 0;
2.1 frystyk 783: host->channel = NULL;
2.22 eric 784: host->tcpstate = TCP_BEGIN;
785: host->reqsMade = 0;
2.32 frystyk 786: if (HTHost_isPersistent(host)) {
787: HTNet_decreasePersistentSocket();
788: host->persistent = NO;
789: }
790: host->close_notification = NO;
2.45 frystyk 791: host->broken_pipe = NO;
2.32 frystyk 792: host->mode = HT_TP_SINGLE;
2.67 ! raff 793:
! 794: host->recovered = 0;
2.32 frystyk 795:
2.59 frystyk 796: HTTRACE(CORE_TRACE, "Host info... removed host %p as persistent\n" _ host);
2.32 frystyk 797:
798: if (!HTList_isEmpty(host->pending)) {
2.59 frystyk 799: HTTRACE(CORE_TRACE, "Host has %d object(s) pending - attempting launch\n" _ HTList_count(host->pending));
2.32 frystyk 800: HTHost_launchPending(host);
801: }
2.1 frystyk 802: return YES;
803: }
804: return NO;
805: }
806:
2.37 frystyk 807: PUBLIC BOOL HTHost_doRecover (HTHost * host)
808: {
809: return host ? host->do_recover : NO;
810: }
811:
2.1 frystyk 812: /*
2.18 eric 813: ** Move all entries in the pipeline and move the rest to the pending
814: ** queue. They will get launched at a later point in time.
815: */
816: PUBLIC BOOL HTHost_recoverPipe (HTHost * host)
817: {
818: if (host) {
819: int piped = HTList_count(host->pipeline);
2.64 frystyk 820:
821: /*
822: ** First check that we haven't already recovered more than we want
823: */
824: if (host->recovered > MAX_HOST_RECOVER) {
825: HTTRACE(CORE_TRACE, "Host recover %p already %d times - not doing it anymore\n" _ host _ host->recovered);
826: return NO;
827: }
828:
829: /*
830: ** If we decided to recover and actually have something in the pipe
831: ** then go ahead.
832: */
2.18 eric 833: if (piped > 0) {
834: int cnt;
2.24 frystyk 835: host->recovered++;
2.64 frystyk 836: 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 837:
838: /*
839: ** Unregister this host for all events
840: */
841: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_READ);
842: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_WRITE);
843: host->registeredFor = 0;
844:
845: /*
846: ** Set new mode to single until we know what is going on
847: */
848: host->mode = HT_TP_SINGLE;
849:
850: /*
851: ** Move all net objects from the net object to the pending queue.
852: */
853: if (!host->pending) host->pending = HTList_new();
854: for (cnt=0; cnt<piped; cnt++) {
855: HTNet * net = HTList_removeLastObject(host->pipeline);
2.59 frystyk 856: HTTRACE(CORE_TRACE, "Host recover Resetting net object %p\n" _ net);
2.18 eric 857: net->registeredFor = 0;
858: (*net->event.cbf)(HTChannel_socket(host->channel), net->event.param, HTEvent_RESET);
859: HTList_appendObject(host->pending, net);
2.57 frystyk 860: host->lock = net;
2.18 eric 861: }
2.37 frystyk 862:
2.18 eric 863: HTChannel_setSemaphore(host->channel, 0);
864: HTHost_clearChannel(host, HT_INTERRUPTED);
2.37 frystyk 865: host->do_recover = NO;
2.18 eric 866: }
2.24 frystyk 867: return YES;
2.18 eric 868: }
869: return NO;
870: }
871:
872: /*
2.51 frystyk 873: ** Terminate a pipeline prematurely, for example because of timeout,
874: ** interruption, etc.
875: */
876: PUBLIC BOOL HTHost_killPipe (HTHost * host)
877: {
878: return killPipeline(host, HTEvent_CLOSE);
879: }
880:
881: /*
2.8 frystyk 882: ** Handle the connection mode. The mode may change mode in the
883: ** middle of a connection.
884: */
885: PUBLIC HTTransportMode HTHost_mode (HTHost * host, BOOL * active)
886: {
887: return host ? host->mode : HT_TP_SINGLE;
888: }
889:
890: /*
891: ** If the new mode is lower than the old mode then adjust the pipeline
892: ** accordingly. That is, if we are going into single mode then move
893: ** all entries in the pipeline and move the rest to the pending
894: ** queue. They will get launched at a later point in time.
895: */
896: PUBLIC BOOL HTHost_setMode (HTHost * host, HTTransportMode mode)
897: {
898: if (host) {
899: /*
900: ** Check the new mode and see if we must adjust the queues.
901: */
902: if (mode == HT_TP_SINGLE && host->mode > mode) {
903: int piped = HTList_count(host->pipeline);
904: if (piped > 0) {
905: int cnt;
2.59 frystyk 906: HTTRACE(CORE_TRACE, "Host info... Moving %d Net objects from pipe line to pending queue\n" _ piped);
2.8 frystyk 907: if (!host->pending) host->pending = HTList_new();
908: for (cnt=0; cnt<piped; cnt++) {
2.18 eric 909: HTNet * net = HTList_removeLastObject(host->pipeline);
2.59 frystyk 910: HTTRACE(CORE_TRACE, "Host info... Resetting net object %p\n" _ net);
2.13 frystyk 911: (*net->event.cbf)(HTChannel_socket(host->channel), net->event.param, HTEvent_RESET);
2.8 frystyk 912: HTList_appendObject(host->pending, net);
913: }
2.18 eric 914: HTChannel_setSemaphore(host->channel, 0);
915: HTHost_clearChannel(host, HT_INTERRUPTED);
2.8 frystyk 916: }
2.24 frystyk 917: }
918:
919: /*
920: ** If we know that this host is bad then we don't allow anything than
921: ** single mode. We can't recover connections for the rest of our life
922: */
923: if (mode == HT_TP_PIPELINE && host->recovered > MAX_HOST_RECOVER) {
2.59 frystyk 924: HTTRACE(PROT_TRACE, "Host info... %p is bad for pipelining so we won't do it!!!\n" _
2.24 frystyk 925: host);
926: } else {
927: host->mode = mode;
2.59 frystyk 928: HTTRACE(PROT_TRACE, "Host info... New mode is %d for host %p\n" _ host->mode _ host);
2.24 frystyk 929: }
2.8 frystyk 930: }
931: return NO;
932: }
933:
934: /*
935: ** Check whether a host is idle meaning if it is ready for a new
936: ** request which depends on the mode of the host. If the host is
937: ** idle, i.e. ready for use then return YES else NO. If the host supports
938: ** persistent connections then still only return idle if no requests are
939: ** ongoing.
940: */
941: PUBLIC BOOL HTHost_isIdle (HTHost * host)
942: {
2.32 frystyk 943: return (host && HTList_isEmpty(host->pipeline));
2.8 frystyk 944: }
945:
2.13 frystyk 946: PRIVATE BOOL _roomInPipe (HTHost * host)
947: {
948: int count;
2.34 frystyk 949: if (!host ||
950: (host->reqsPerConnection && host->reqsMade >= host->reqsPerConnection) ||
2.45 frystyk 951: HTHost_closeNotification(host) || host->broken_pipe)
2.32 frystyk 952: return NO;
2.13 frystyk 953: count = HTList_count(host->pipeline);
954: switch (host->mode) {
955: case HT_TP_SINGLE:
956: return count <= 0;
957: case HT_TP_PIPELINE:
2.51 frystyk 958: return (host->recovered < MAX_HOST_RECOVER) ?
959: (count < MaxPipelinedRequests) : (count <= 0);
2.13 frystyk 960: case HT_TP_INTERLEAVE:
961: return YES;
962: }
963: return NO;
964: }
965:
2.8 frystyk 966: /*
967: ** Add a net object to the host object. If the host
968: ** is idle then add to active list (pipeline) else add
969: ** it to the pending list
970: ** Return HT_PENDING if we must pend, HT_OK, or HT_ERROR
971: */
972: PUBLIC int HTHost_addNet (HTHost * host, HTNet * net)
973: {
974: if (host && net) {
975: int status = HT_OK;
2.32 frystyk 976: BOOL doit = (host->doit==net);
2.8 frystyk 977:
2.18 eric 978: /*
979: ** If we don't have a socket already then check to see if we can get
980: ** one. Otherwise we put the host object into our pending queue.
2.52 frystyk 981: */
2.18 eric 982: if (!host->channel && HTNet_availableSockets() <= 0) {
2.56 frystyk 983:
984: /* Create list for pending Host objects */
2.8 frystyk 985: if (!PendHost) PendHost = HTList_new();
2.56 frystyk 986:
987: /* Add the host object ad pending if not already */
988: if (HTList_indexOf(PendHost, host) < 0) HTList_addObject(PendHost, host);
989:
990: /*
991: ** Add the Net object to the Host object. If it is the current Net
992: ** obejct holding the lock then add it to the beginning of the list.
993: ** Otherwise add it to the end
994: */
2.52 frystyk 995: if (!host->pending) host->pending = HTList_new();
2.56 frystyk 996: if (host->lock == net)
997: HTList_appendObject(host->pending, net);
998: else
999: HTList_addObject(host->pending, net);
1000:
2.59 frystyk 1001: 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" _
1002: net _ net->request _ host _ host->reqsMade _
1003: HTList_count(host->pipeline) _ HTList_count(host->pending));
2.52 frystyk 1004: return HT_PENDING;
2.8 frystyk 1005: }
1006:
2.45 frystyk 1007: #if 0
2.18 eric 1008: /*
2.45 frystyk 1009: ** First check whether the net object is already on either queue.
1010: ** Do NOT add extra copies of the HTNet object to
1011: ** the pipeline or pending list (if it's already on the list).
1012: */
1013: if (HTList_indexOf(host->pipeline, net) >= 0) {
2.59 frystyk 1014: HTTRACE(CORE_TRACE, "Host info... The Net %p (request %p) is already in pipe,"
1015: " %d requests made, %d requests in pipe, %d pending\n" _
1016: net _ net->request _ host->reqsMade _
1017: HTList_count(host->pipeline) _
2.45 frystyk 1018: HTList_count(host->pending));
2.59 frystyk 1019: HTDEBUGBREAK("Net object %p registered multiple times in pipeline\n" _
2.45 frystyk 1020: net);
1021: return HT_OK;
1022: }
2.44 frystyk 1023:
2.45 frystyk 1024: if (HTList_indexOf(host->pending, net) >= 0) {
2.59 frystyk 1025: HTTRACE(CORE_TRACE, "Host info... The Net %p (request %p) already pending,"
1026: " %d requests made, %d requests in pipe, %d pending\n" _
1027: net _ net->request _ host->reqsMade _
1028: HTList_count(host->pipeline) _
2.45 frystyk 1029: HTList_count(host->pending));
2.59 frystyk 1030: HTDEBUGBREAK("Net object %p registered multiple times in pending queue\n" _
2.45 frystyk 1031: net);
1032:
1033: return HT_PENDING;
1034: }
1035: #endif
2.44 frystyk 1036:
1037: /*
2.18 eric 1038: ** Add net object to either active or pending queue.
1039: */
2.44 frystyk 1040: if (_roomInPipe(host) && (HTList_isEmpty(host->pending) || doit)) {
2.32 frystyk 1041: if (doit) host->doit = NULL;
2.8 frystyk 1042: if (!host->pipeline) host->pipeline = HTList_new();
1043: HTList_addObject(host->pipeline, net);
2.32 frystyk 1044: host->reqsMade++;
2.59 frystyk 1045: 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" _
1046: net _ net->request _ host _ host->reqsMade _
1047: HTList_count(host->pipeline) _ HTList_count(host->pending));
2.18 eric 1048:
2.13 frystyk 1049: /*
2.30 frystyk 1050: ** If we have been idle then make sure we delete the timer
2.13 frystyk 1051: */
2.30 frystyk 1052: if (host->timer) {
1053: HTTimer_delete(host->timer);
1054: host->timer = NULL;
1055: }
2.40 kahan 1056:
1057: /*JK: New CBF function
1058: ** Call any user-defined callback to say the request will
1059: ** be processed.
1060: */
1061: HTHost_ActivateRequest (net);
2.30 frystyk 1062:
2.8 frystyk 1063: } else {
1064: if (!host->pending) host->pending = HTList_new();
2.44 frystyk 1065: HTList_addObject(host->pending, net);
2.59 frystyk 1066: 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" _
1067: net _ net->request _
1068: host _ host->reqsMade _
1069: HTList_count(host->pipeline) _ HTList_count(host->pending));
2.8 frystyk 1070: status = HT_PENDING;
1071: }
1072: return status;
1073: }
1074: return HT_ERROR;
1075: }
1076:
2.51 frystyk 1077: PRIVATE BOOL HTHost_free (HTHost * host, int status)
2.13 frystyk 1078: {
2.32 frystyk 1079: if (host->channel) {
2.13 frystyk 1080:
2.32 frystyk 1081: /* Check if we should keep the socket open */
1082: if (HTHost_isPersistent(host)) {
2.48 frystyk 1083: int piped = HTList_count(host->pipeline);
2.37 frystyk 1084: if (HTHost_closeNotification(host)) {
2.59 frystyk 1085: HTTRACE(CORE_TRACE, "Host Object. got close notifiation on socket %d\n" _
2.37 frystyk 1086: HTChannel_socket(host->channel));
1087:
1088: /*
1089: ** If more than a single element (this one) in the pipe
1090: ** then we have to recover gracefully
1091: */
1092: if (piped > 1) {
1093: host->reqsPerConnection = host->reqsMade - piped;
2.59 frystyk 1094: HTTRACE(CORE_TRACE, "%d requests made, %d in pipe, max %d requests pr connection\n" _
1095: host->reqsMade _ piped _ host->reqsPerConnection);
2.37 frystyk 1096: host->do_recover = YES;
2.38 frystyk 1097: HTChannel_delete(host->channel, status);
2.62 frystyk 1098: host->channel = NULL;
2.38 frystyk 1099: } else {
1100: HTChannel_setSemaphore(host->channel, 0);
1101: HTHost_clearChannel(host, status);
2.37 frystyk 1102: }
2.48 frystyk 1103: } else if (piped<=1 && host->reqsMade==host->reqsPerConnection) {
2.59 frystyk 1104: HTTRACE(CORE_TRACE, "Host Object. closing persistent socket %d\n" _
2.37 frystyk 1105: HTChannel_socket(host->channel));
2.32 frystyk 1106:
1107: /*
1108: ** By lowering the semaphore we make sure that the channel
1109: ** is gonna be deleted
1110: */
1111: HTChannel_setSemaphore(host->channel, 0);
1112: HTHost_clearChannel(host, status);
1113:
1114: } else {
2.59 frystyk 1115: HTTRACE(CORE_TRACE, "Host Object. keeping persistent socket %d\n" _
2.56 frystyk 1116: HTChannel_socket(host->channel));
2.62 frystyk 1117: if (HTChannel_delete(host->channel, status)) {
2.59 frystyk 1118: HTDEBUGBREAK("Host Event.. Channel unexpected deleted from host %p (%s)\n" _ host _ host->hostname);
2.62 frystyk 1119: host->channel = NULL;
1120: }
2.32 frystyk 1121: /*
1122: ** If connection is idle then set a timer so that we close the
1123: ** connection if idle too long
1124: */
2.48 frystyk 1125: if (piped<=1 && HTList_isEmpty(host->pending) && !host->timer) {
1126: host->timer = HTTimer_new(NULL, IdleTimeoutEvent,
2.53 frystyk 1127: host, HTActiveTimeout, YES, NO);
2.59 frystyk 1128: HTTRACE(PROT_TRACE, "Host........ Object %p going idle...\n" _ host);
2.32 frystyk 1129: }
1130: }
1131: return YES;
1132: } else {
2.59 frystyk 1133: HTTRACE(CORE_TRACE, "Host Object. closing socket %d\n" _ HTChannel_socket(host->channel));
2.47 frystyk 1134: HTChannel_setSemaphore(host->channel, 0);
2.41 frystyk 1135: HTHost_clearChannel(host, status);
2.32 frystyk 1136: }
2.13 frystyk 1137: }
2.32 frystyk 1138: return NO;
2.13 frystyk 1139: }
1140:
2.51 frystyk 1141: PUBLIC BOOL HTHost_deleteNet (HTHost * host, HTNet * net, int status)
2.8 frystyk 1142: {
1143: if (host && net) {
2.59 frystyk 1144: HTTRACE(CORE_TRACE, "Host info... Remove %p from pipe\n" _ net);
2.51 frystyk 1145:
1146: /* If the Net object is in the pipeline then also update the channel */
1147: if (host->pipeline && HTList_indexOf(host->pipeline, net) >= 0) {
1148: HTHost_free(host, status);
1149: HTList_removeObjectAll(host->pipeline, net);
1150: }
1151:
2.44 frystyk 1152: HTList_removeObjectAll(host->pending, net); /* just to make sure */
2.62 frystyk 1153: host->lock = HTList_firstObject(host->pending);
2.8 frystyk 1154: return YES;
1155: }
1156: return NO;
1157: }
1158:
1159: /*
1160: ** Handle pending host objects.
1161: ** There are two ways we can end up with pending reqyests:
1162: ** 1) If we are out of sockets then register new host objects as pending.
1163: ** 2) If we are pending on a connection then register new net objects as
1164: ** pending
1165: ** This set of functions handles pending host objects and can start new
1166: ** requests as resources get available
1167: */
1168:
1169: /*
1170: ** Check this host object for any pending requests and return the next
1171: ** registered Net object.
1172: */
1173: PUBLIC HTNet * HTHost_nextPendingNet (HTHost * host)
1174: {
1175: HTNet * net = NULL;
2.32 frystyk 1176: if (host && host->pending) {
2.18 eric 1177: /*JK 23/Sep/96 Bug correction. Associated the following lines to the
1178: **above if. There was a missing pair of brackets.
1179: */
1180: if ((net = (HTNet *) HTList_removeFirstObject(host->pending)) != NULL) {
2.59 frystyk 1181: HTTRACE(CORE_TRACE, "Host info... Popping %p from pending net queue on host %p\n" _
1182: net _ host);
2.33 frystyk 1183: #if 0
1184: {
1185: HTRequest * request = HTNet_request(net);
1186: char * uri = HTAnchor_address((HTAnchor *) HTRequest_anchor(request));
1187: fprintf(stderr, "Popping '%s'\n", uri);
1188: }
1189: #endif
2.32 frystyk 1190: host->doit = net;
2.18 eric 1191: }
2.8 frystyk 1192: }
1193: return net;
1194: }
1195:
1196: /*
2.13 frystyk 1197: ** Return the current list of pending host objects waiting for a socket
2.8 frystyk 1198: */
1199: PUBLIC HTHost * HTHost_nextPendingHost (void)
1200: {
1201: HTHost * host = NULL;
1202: if (PendHost) {
1203: if ((host = (HTHost *) HTList_removeFirstObject(PendHost)) != NULL)
2.59 frystyk 1204: HTTRACE(PROT_TRACE, "Host info... Popping %p from pending host queue\n" _
2.8 frystyk 1205: host);
1206: }
1207: return host;
1208: }
1209:
1210: /*
1211: ** Start the next pending request if any. First we look for pending
1212: ** requests for the same host and then we check for any other pending
1213: ** hosts
1214: */
1215: PUBLIC BOOL HTHost_launchPending (HTHost * host)
1216: {
2.52 frystyk 1217: HTNet * net = NULL;
2.8 frystyk 1218: if (!host) {
2.59 frystyk 1219: HTTRACE(PROT_TRACE, "Host info... Bad arguments\n");
2.8 frystyk 1220: return NO;
1221: }
1222:
1223: /*
2.52 frystyk 1224: ** In pipeline we can only have one doing writing at a time.
1225: ** We therefore check that there are no other Net object
1226: ** registered for write
2.8 frystyk 1227: */
2.52 frystyk 1228: if (host->mode == HT_TP_PIPELINE) {
1229: net = (HTNet *) HTList_lastObject(host->pipeline);
1230: if (net && net->registeredFor == HTEvent_WRITE)
1231: return NO;
1232: }
2.8 frystyk 1233:
2.52 frystyk 1234: /*
1235: ** Check the current Host object for pending Net objects
1236: */
1237: if (_roomInPipe(host) && DoPendingReqLaunch &&
1238: (net = HTHost_nextPendingNet(host))) {
1239: HTHost_ActivateRequest(net);
2.59 frystyk 1240: HTTRACE(CORE_TRACE, "Launch pending net object %p with %d reqs in pipe (%d reqs made)\n" _
1241: net _ HTList_count(host->pipeline) _ host->reqsMade);
2.52 frystyk 1242: return HTNet_execute(net, HTEvent_WRITE);
1243: }
2.13 frystyk 1244:
2.52 frystyk 1245: /*
1246: ** Check for other pending Host objects
1247: */
1248: if (DoPendingReqLaunch && HTNet_availableSockets() > 0) {
1249: HTHost * pending = HTHost_nextPendingHost();
1250: if (pending && (net = HTHost_nextPendingNet(pending))) {
1251: if (!pending->pipeline) pending->pipeline = HTList_new();
1252: HTList_addObject(pending->pipeline, net);
1253: host->reqsMade++;
2.59 frystyk 1254: HTTRACE(CORE_TRACE, "Launch pending host object %p, net %p with %d reqs in pipe (%d reqs made)\n" _
1255: pending _ net _ HTList_count(pending->pipeline) _ pending->reqsMade);
2.52 frystyk 1256: HTHost_ActivateRequest(net);
1257: return HTNet_execute(net, HTEvent_WRITE);
2.8 frystyk 1258: }
2.52 frystyk 1259: }
1260: return YES;
2.13 frystyk 1261: }
1262:
1263: PUBLIC HTNet * HTHost_firstNet (HTHost * host)
1264: {
1265: return (HTNet *) HTList_firstObject(host->pipeline);
2.60 frystyk 1266: }
1267:
1268: PUBLIC int HTHost_numberOfOutstandingNetObjects (HTHost * host)
1269: {
1270: return host ? HTList_count(host->pipeline) : -1;
1271: }
1272:
1273: PUBLIC int HTHost_numberOfPendingNetObjects (HTHost * host)
1274: {
1275: return host ? HTList_count(host->pending) : -1;
2.13 frystyk 1276: }
1277:
1278: /*
1279: ** The host event manager keeps track of the state of it's client engines
1280: ** (typically HTTPEvent), accepting multiple blocks on read or write from
1281: ** multiple pipelined engines. It then registers its own engine
1282: ** (HostEvent) with the event manager.
1283: */
2.66 frystyk 1284: PUBLIC int HTHost_connect (HTHost * host, HTNet * net, char * url)
2.13 frystyk 1285: {
2.42 frystyk 1286: HTRequest * request = HTNet_request(net);
2.52 frystyk 1287: int status = HT_OK;
2.42 frystyk 1288: if (!host) {
1289: HTProtocol * protocol = HTNet_protocol(net);
1290: if ((host = HTHost_newWParse(request, url, HTProtocol_id(protocol))) == NULL)
2.45 frystyk 1291: return HT_ERROR;
2.52 frystyk 1292:
1293: /*
1294: ** If not already locked and without a channel
2.55 frystyk 1295: ** then lock the darn thing with the first Net object
1296: ** pending.
2.52 frystyk 1297: */
1298: if (!host->lock && !host->channel) {
2.55 frystyk 1299: HTNet * next_pending = NULL;
2.42 frystyk 1300: host->forceWriteFlush = YES;
2.55 frystyk 1301: host->lock = (next_pending = HTList_firstObject(host->pending)) ?
1302: next_pending : net;
2.59 frystyk 1303: HTTRACE(CORE_TRACE, "Host connect Grabbing lock on Host %p with %p\n" _ host _ host->lock);
2.42 frystyk 1304: }
1305: HTNet_setHost(net, host);
1306: }
1307:
1308: if (!host->lock || (host->lock && host->lock == net)) {
2.66 frystyk 1309: status = HTDoConnect(net);
2.55 frystyk 1310: if (status == HT_PENDING)
1311: return HT_WOULD_BLOCK;
1312: else if (status == HT_WOULD_BLOCK) {
2.42 frystyk 1313: host->lock = net;
2.52 frystyk 1314: return status;
2.55 frystyk 1315: } else {
1316:
1317: /*
1318: ** See if there is already a new pending request that should
1319: ** take over the current lock
1320: */
1321: HTNet * next_pending = NULL;
1322: if ((next_pending = HTList_firstObject(host->pending))) {
2.59 frystyk 1323: HTTRACE(CORE_TRACE, "Host connect Changing lock on Host %p to %p\n" _
2.66 frystyk 1324: host _ next_pending);
2.55 frystyk 1325: host->lock = next_pending;
1326: } else {
2.59 frystyk 1327: HTTRACE(CORE_TRACE, "Host connect Unlocking Host %p\n" _ host);
2.55 frystyk 1328: host->lock = NULL;
1329: }
1330: return status;
2.42 frystyk 1331: }
1332: } else {
2.59 frystyk 1333: HTTRACE(CORE_TRACE, "Host connect Host %p already locked with %p\n" _ host _ host->lock);
2.42 frystyk 1334: if ((status = HTHost_addNet(host, net)) == HT_PENDING) {
1335: return HT_PENDING;
1336: }
2.54 frystyk 1337: }
1338: return HT_ERROR; /* @@@ - some more deletion and stuff here? */
1339: }
1340:
2.66 frystyk 1341: PUBLIC int HTHost_listen (HTHost * host, HTNet * net, char * url)
2.54 frystyk 1342: {
1343: HTRequest * request = HTNet_request(net);
1344: int status = HT_OK;
1345: if (!host) {
1346: HTProtocol * protocol = HTNet_protocol(net);
1347: if ((host = HTHost_newWParse(request, url, HTProtocol_id(protocol))) == NULL)
1348: return HT_ERROR;
1349:
1350: /*
1351: ** If not already locked and without a channel
2.66 frystyk 1352: ** then lock the darn thing with the first Net object
1353: ** pending.
2.54 frystyk 1354: */
1355: if (!host->lock && !host->channel) {
1356: host->forceWriteFlush = YES;
1357: host->lock = net;
1358: }
1359: HTNet_setHost(net, host);
1360: }
1361:
2.66 frystyk 1362: /*
1363: ** See if we already have a dedicated listen Net object. If not
1364: ** then create one.
1365: */
1366: if (!host->listening) host->listening = HTNet_new(host);
2.54 frystyk 1367:
2.66 frystyk 1368: /*
1369: ** Start listening on the Net object
1370: */
1371: status = HTDoListen(host->listening, net, HT_BACKLOG);
1372: if (status != HT_OK) {
1373: HTTRACE(CORE_TRACE, "Host listen. On Host %p resulted in %d\n" _ host _ status);
1374: return status;
1375: }
1376: return HT_OK;
1377: }
2.54 frystyk 1378:
2.66 frystyk 1379: PUBLIC int HTHost_accept (HTHost * host, HTNet * net, char * url)
1380: {
1381: int status = HT_OK;
1382: if (!host || !host->listening) {
1383: HTTRACE(CORE_TRACE, "Host accept. No host object or not listening on anything\n");
1384: return HT_ERROR;
1385: }
2.54 frystyk 1386:
2.66 frystyk 1387: if (!host->lock || (host->lock && host->lock == net)) {
1388: status = HTDoAccept(host->listening, net);
1389: if (status == HT_PENDING)
1390: return HT_WOULD_BLOCK;
1391: else if (status == HT_WOULD_BLOCK) {
2.54 frystyk 1392: host->lock = net;
1393: return status;
2.66 frystyk 1394: } else {
1395:
1396: /*
1397: ** See if there is already a new pending request that should
1398: ** take over the current lock
1399: */
1400: HTNet * next_pending = NULL;
1401: if ((next_pending = HTList_firstObject(host->pending))) {
1402: HTTRACE(CORE_TRACE, "Host connect Changing lock on Host %p to %p\n" _
1403: host _ next_pending);
1404: host->lock = next_pending;
1405: } else {
1406: HTTRACE(CORE_TRACE, "Host connect Unlocking Host %p\n" _ host);
1407: host->lock = NULL;
1408: }
1409: return status;
1410: }
1411: } else {
1412: HTTRACE(CORE_TRACE, "Host connect Host %p already locked with %p\n" _ host _ host->lock);
1413: if ((status = HTHost_addNet(host, net)) == HT_PENDING) {
1414: return HT_PENDING;
2.54 frystyk 1415: }
2.42 frystyk 1416: }
2.66 frystyk 1417: return HT_ERROR;
2.13 frystyk 1418: }
1419:
1420: /*
1421: ** Rules: SINGLE: one element in pipe, either reading or writing
1422: ** PIPE: n element in pipe, n-1 reading, 1 writing
1423: */
1424: PUBLIC int HTHost_register (HTHost * host, HTNet * net, HTEventType type)
1425: {
2.40 kahan 1426: HTEvent *event;
1427:
2.13 frystyk 1428: if (host && net) {
1429:
2.28 frystyk 1430: if (type == HTEvent_CLOSE) {
2.13 frystyk 1431:
2.28 frystyk 1432: /*
1433: ** Unregister this host for all events
1434: */
1435: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_READ);
1436: HTEvent_unregister(HTChannel_socket(host->channel), HTEvent_WRITE);
1437: host->registeredFor = 0;
2.13 frystyk 1438: return YES;
2.28 frystyk 1439:
1440: } else {
1441:
1442: /* net object may already be registered */
1443: if (HTEvent_BITS(type) & net->registeredFor)
1444: return NO;
1445: net->registeredFor ^= HTEvent_BITS(type);
1446:
1447: /* host object may already be registered */
1448: if (host->registeredFor & HTEvent_BITS(type))
1449: return YES;
1450: host->registeredFor ^= HTEvent_BITS(type);
2.46 frystyk 1451:
1452: #ifdef WWW_WIN_ASYNC
1453: /* Make sure we are registered for CLOSE on windows */
1454: event = *(host->events+HTEvent_INDEX(HTEvent_CLOSE));
1455: HTEvent_register(HTChannel_socket(host->channel), HTEvent_CLOSE, event);
1456: #endif /* WWW_WIN_ASYNC */
1457:
1458: /* JK: register a request in the event structure */
2.40 kahan 1459: event = *(host->events+HTEvent_INDEX(type));
1460: event->request = HTNet_request (net);
2.28 frystyk 1461: return HTEvent_register(HTChannel_socket(host->channel),
2.40 kahan 1462: type, event);
2.28 frystyk 1463: }
2.52 frystyk 1464:
1465: return YES;
2.13 frystyk 1466: }
2.65 frystyk 1467: HTTRACE(CORE_TRACE, "HTHost...... Don't register event with bad arguments\n");
2.13 frystyk 1468: return NO;
1469: }
1470:
1471: PUBLIC int HTHost_unregister (HTHost * host, HTNet * net, HTEventType type)
1472: {
1473: if (host && net) {
1474:
2.28 frystyk 1475: /* net object may not be registered */
2.13 frystyk 1476: if (!(HTEvent_BITS(type) & net->registeredFor))
1477: return NO;
1478: net->registeredFor ^= HTEvent_BITS(type);
1479:
2.28 frystyk 1480: /* host object may not be registered */
2.13 frystyk 1481: if (!(host->registeredFor & HTEvent_BITS(type)))
1482: return YES;
1483: host->registeredFor ^= HTEvent_BITS(type);
1484:
1485: /* stay registered for READ to catch a socket close */
1486: /* WRITE and CONNECT can be unregistered, though */
1487: if ((type == HTEvent_WRITE && isLastInPipe(host, net)) ||
1488: type == HTEvent_CONNECT)
1489: /* if we are blocked downstream, shut down the whole pipe */
1490: HTEvent_unregister(HTChannel_socket(host->channel), type);
1491: return YES;
1492: }
1493: return NO;
1494: }
1495:
1496: /*
1497: ** The reader tells HostEvent that it's stream did not finish the data
1498: */
1499: PUBLIC BOOL HTHost_setRemainingRead (HTHost * host, size_t remaining)
1500: {
1501: if (host == NULL) return NO;
1502: host->remainingRead = remaining;
2.59 frystyk 1503: HTTRACE(PROT_TRACE, "Host........ %d bytes remaining \n" _ remaining);
2.45 frystyk 1504: if (host->broken_pipe && remaining == 0) {
2.59 frystyk 1505: HTTRACE(PROT_TRACE, "Host........ Emtied out connection\n");
2.45 frystyk 1506: }
2.13 frystyk 1507: return YES;
1508: }
1509:
2.32 frystyk 1510: PUBLIC size_t HTHost_remainingRead (HTHost * host)
1511: {
1512: return host ? host->remainingRead : -1;
1513: }
1514:
2.13 frystyk 1515: PUBLIC SockA * HTHost_getSockAddr (HTHost * host)
1516: {
1517: if (!host) return NULL;
1518: return &host->sock_addr;
1519: }
1520:
1521: PUBLIC BOOL HTHost_setHome (HTHost * host, int home)
1522: {
1523: if (!host) return NO;
1524: host->home = home;
1525: return YES;
1526: }
1527:
1528: PUBLIC int HTHost_home (HTHost * host)
1529: {
1530: if (!host) return 0;
1531: return host->home;
1532: }
1533:
2.27 frystyk 1534: PUBLIC BOOL HTHost_setRetry (HTHost * host, int retry)
1535: {
1536: if (!host) return NO;
1537: host->retry = retry;
1538: return YES;
1539: }
1540:
1541: PUBLIC BOOL HTHost_decreaseRetry (HTHost * host)
1542: {
2.44 frystyk 1543: if (!host) return NO;
1544:
1545: if (host->retry > 0) host->retry--;
1546: return YES;
1547:
2.27 frystyk 1548: }
1549:
1550: PUBLIC int HTHost_retry (HTHost * host)
1551: {
1552: if (!host) return 0;
1553: return host->retry;
1554: }
1555:
2.13 frystyk 1556: #if 0 /* Is a macro right now */
2.21 frystyk 1557: PRIVATE BOOL HTHost_setDNS5 (HTHost * host, HTdns * dns)
2.13 frystyk 1558: {
1559: if (!host) return NO;
1560: host->dns = dns;
1561: return YES;
1562: }
1563: #endif
1564:
1565: PUBLIC BOOL HTHost_setChannel (HTHost * host, HTChannel * channel)
1566: {
1567: if (!host) return NO;
1568: host->channel = channel;
1569: return YES;
1570: }
1571:
1572: PUBLIC HTNet * HTHost_getReadNet(HTHost * host)
1573: {
2.38 frystyk 1574: return host ? (HTNet *) HTList_firstObject(host->pipeline) : NULL;
2.13 frystyk 1575: }
1576:
1577: PUBLIC HTNet * HTHost_getWriteNet(HTHost * host)
1578: {
1579: return host ? (HTNet *) HTList_lastObject(host->pipeline) : NULL;
1580: }
1581:
1582: /*
1583: ** Create the input stream and bind it to the channel
1584: ** Please read the description in the HTIOStream module for the parameters
1585: */
1586: PUBLIC HTInputStream * HTHost_getInput (HTHost * host, HTTransport * tp,
1587: void * param, int mode)
1588: {
1589: if (host && host->channel && tp) {
1590: HTChannel * ch = host->channel;
1591: HTInputStream * input = (*tp->input_new)(host, ch, param, mode);
1592: HTChannel_setInput(ch, input);
1593: return HTChannel_getChannelIStream(ch);
1594: }
2.59 frystyk 1595: HTTRACE(CORE_TRACE, "Host Object. Can't create input stream\n");
2.13 frystyk 1596: return NULL;
1597: }
1598:
1599: PUBLIC HTOutputStream * HTHost_getOutput (HTHost * host, HTTransport * tp,
1600: void * param, int mode)
1601: {
1602: if (host && host->channel && tp) {
1603: HTChannel * ch = host->channel;
1604: HTOutputStream * output = (*tp->output_new)(host, ch, param, mode);
1605: HTChannel_setOutput(ch, output);
1606: return output;
1607: }
2.59 frystyk 1608: HTTRACE(CORE_TRACE, "Host Object. Can't create output stream\n");
2.13 frystyk 1609: return NULL;
1610: }
1611:
1612: PUBLIC HTOutputStream * HTHost_output (HTHost * host, HTNet * net)
1613: {
1614: if (host && host->channel && net) {
1615: HTOutputStream * output = HTChannel_output(host->channel);
1616: return output;
1617: }
1618: return NULL;
1619: }
1620:
1621: PUBLIC int HTHost_read(HTHost * host, HTNet * net)
1622: {
1623: HTInputStream * input = HTChannel_input(host->channel);
1624: if (net != HTHost_getReadNet(host)) {
1625: HTHost_register(host, net, HTEvent_READ);
1626: return HT_WOULD_BLOCK;
1627: }
2.17 frystyk 1628:
1629: /*
1630: ** If there is no input channel then this can either mean that
1631: ** we have lost the channel or an error occurred. We return
1632: ** HT_CLOSED as this is a sign to the caller that we don't
1633: ** have a channel
1634: */
1635: return input ? (*input->isa->read)(input) : HT_CLOSED;
2.13 frystyk 1636: }
1637:
1638: PUBLIC BOOL HTHost_setConsumed(HTHost * host, size_t bytes)
1639: {
1640: HTInputStream * input;
1641: if (!host || !host->channel) return NO;
1642: if ((input = HTChannel_input(host->channel)) == NULL)
1643: return NO;
2.59 frystyk 1644: HTTRACE(CORE_TRACE, "Host........ passing %d bytes as consumed to %p\n" _ bytes _ input);
2.13 frystyk 1645: return (*input->isa->consumed)(input, bytes);
1646: }
1647:
1648: PUBLIC int HTHost_hash (HTHost * host)
1649: {
1650: return host ? host->hash : -1;
1651: }
1652:
2.26 frystyk 1653: PUBLIC BOOL HTHost_setWriteDelay (HTHost * host, ms_t delay)
2.13 frystyk 1654: {
2.26 frystyk 1655: if (host && delay >= 0) {
1656: host->delay = delay;
1657: return YES;
1658: }
1659: return NO;
1660: }
1661:
1662: PUBLIC ms_t HTHost_writeDelay (HTHost * host)
1663: {
1664: return host ? host->delay : 0;
1665: }
1666:
1667: PUBLIC int HTHost_findWriteDelay (HTHost * host, ms_t lastFlushTime, int buffSize)
1668: {
2.35 frystyk 1669: #if 0
2.15 eric 1670: unsigned short mtu;
2.18 eric 1671: int ret = -1;
2.15 eric 1672: int socket = HTChannel_socket(host->channel);
2.18 eric 1673: #ifndef WWW_MSWINDOWS
2.15 eric 1674: ret = ioctl(socket, 666, (unsigned long)&mtu);
2.18 eric 1675: #endif /* WWW_MSWINDOWS */
2.15 eric 1676: if ((ret == 0 && buffSize >= mtu) || host->forceWriteFlush)
2.13 frystyk 1677: return 0;
2.26 frystyk 1678: return host->delay;
2.35 frystyk 1679: #else
1680: return host->forceWriteFlush ? 0 : host->delay;
1681: #endif
2.13 frystyk 1682: }
1683:
2.26 frystyk 1684: PUBLIC BOOL HTHost_setDefaultWriteDelay (ms_t delay)
1685: {
1686: if (delay >= 0) {
1687: WriteDelay = delay;
2.59 frystyk 1688: HTTRACE(CORE_TRACE, "Host........ Default write delay is %d ms\n" _ delay);
2.26 frystyk 1689: return YES;
1690: }
1691: return NO;
1692: }
1693:
1694: PUBLIC ms_t HTHost_defaultWriteDelay (void)
1695: {
1696: return WriteDelay;
1697: }
1698:
2.13 frystyk 1699: PUBLIC int HTHost_forceFlush(HTHost * host)
1700: {
2.35 frystyk 1701: HTNet * targetNet = (HTNet *) HTList_lastObject(host->pipeline);
2.13 frystyk 1702: int ret;
2.35 frystyk 1703: if (targetNet == NULL) return HT_ERROR;
2.59 frystyk 1704: HTTRACE(CORE_TRACE, "Host Event.. FLUSH passed to `%s\'\n" _
2.28 frystyk 1705: HTAnchor_physical(HTRequest_anchor(HTNet_request(targetNet))));
2.13 frystyk 1706: host->forceWriteFlush = YES;
1707: ret = (*targetNet->event.cbf)(HTChannel_socket(host->channel), targetNet->event.param, HTEvent_FLUSH);
2.35 frystyk 1708: host->forceWriteFlush = NO;
2.13 frystyk 1709: return ret;
2.39 frystyk 1710: }
1711:
1712: /*
1713: ** Context pointer to be used as a user defined context
1714: */
1715: PUBLIC void HTHost_setContext (HTHost * me, void * context)
1716: {
2.40 kahan 1717: if (me) me->context = context;
2.39 frystyk 1718: }
1719:
1720: PUBLIC void * HTHost_context (HTHost * me)
1721: {
2.40 kahan 1722: return me ? me->context : NULL;
2.1 frystyk 1723: }
2.11 kahan 1724:
2.13 frystyk 1725: PUBLIC int HTHost_eventTimeout (void)
1726: {
1727: return EventTimeout;
1728: }
2.11 kahan 1729:
2.13 frystyk 1730: PUBLIC void HTHost_setEventTimeout (int millis)
1731: {
1732: EventTimeout = millis;
2.59 frystyk 1733: HTTRACE(CORE_TRACE, "Host........ Setting event timeout to %d ms\n" _ millis);
2.13 frystyk 1734: }
2.40 kahan 1735:
2.45 frystyk 1736: PUBLIC BOOL HTHost_setMaxPipelinedRequests (int max)
1737: {
1738: if (max > 1) {
1739: MaxPipelinedRequests = max;
1740: return YES;
1741: }
1742: return NO;
1743: }
2.40 kahan 1744:
2.45 frystyk 1745: PUBLIC int HTHost_maxPipelinedRequests (void)
2.40 kahan 1746: {
2.45 frystyk 1747: return MaxPipelinedRequests;
1748: }
1749:
1750: PUBLIC void HTHost_setActivateRequestCallback (HTHost_ActivateRequestCallback * cbf)
1751: {
2.59 frystyk 1752: HTTRACE(CORE_TRACE, "HTHost...... Registering %p\n" _ cbf);
2.40 kahan 1753: ActivateReqCBF = cbf;
1754: }
1755:
2.45 frystyk 1756: PRIVATE int HTHost_ActivateRequest (HTNet * net)
2.40 kahan 1757: {
2.45 frystyk 1758: HTRequest * request = NULL;
1759: if (!ActivateReqCBF) {
2.59 frystyk 1760: HTTRACE(CORE_TRACE, "HTHost...... No ActivateRequest callback handler registered\n");
2.45 frystyk 1761: return HT_ERROR;
1762: }
1763: request = HTNet_request(net);
1764: return (*ActivateReqCBF)(request);
2.40 kahan 1765: }
1766:
1767: PUBLIC void HTHost_disable_PendingReqLaunch (void)
1768: {
2.45 frystyk 1769: DoPendingReqLaunch = NO;
2.40 kahan 1770: }
1771:
1772: PUBLIC void HTHost_enable_PendingReqLaunch (void)
1773: {
2.45 frystyk 1774: DoPendingReqLaunch = YES;
2.40 kahan 1775: }
1776:
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