2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
10 /* RX: Globals for internal use, basically */
12 #ifndef AFS_RX_GLOBALS_H
13 #define AFS_RX_GLOBALS_H
24 #if defined(AFS_NT40_ENV) && defined(AFS_PTHREAD_ENV)
25 #define EXT __declspec(dllimport) extern
31 /* Basic socket for client requests; other sockets (for receiving server requests) are in the service structures */
32 EXT osi_socket rx_socket;
34 /* The array of installed services. Null terminated. */
35 EXT struct rx_service *rx_services[RX_MAX_SERVICES + 1];
36 #ifdef RX_ENABLE_LOCKS
37 /* Protects nRequestsRunning as well as pool allocation variables. */
38 EXT afs_kmutex_t rx_serverPool_lock;
39 #endif /* RX_ENABLE_LOCKS */
41 /* Incoming calls wait on this queue when there are no available server processes */
42 EXT struct rx_queue rx_incomingCallQueue;
44 /* Server processes wait on this queue when there are no appropriate calls to process */
45 EXT struct rx_queue rx_idleServerQueue;
47 /* Constant delay time before sending an acknowledge of the last packet received. This is to avoid sending an extra acknowledge when the client is about to make another call, anyway, or the server is about to respond. */
48 EXT struct clock rx_lastAckDelay;
50 /* Constant delay time before sending a hard ack if the receiver consumes
51 * a packet while no delayed ack event is scheduled. Ensures that the
52 * sender is able to advance its window when the receiver consumes a packet
53 * after the sender has exhausted its transmit window.
55 EXT struct clock rx_hardAckDelay;
57 /* Constant delay time before sending a soft ack when none was requested.
58 * This is to make sure we send soft acks before the sender times out,
59 * Normally we wait and send a hard ack when the receiver consumes the packet */
60 EXT struct clock rx_softAckDelay;
62 /* Variable to allow introduction of network unreliability */
64 EXT int rx_intentionallyDroppedPacketsPer100 INIT(0); /* Dropped on Send */
67 /* extra packets to add to the quota */
68 EXT int rx_extraQuota INIT(0);
69 /* extra packets to alloc (2 windows by deflt) */
70 EXT int rx_extraPackets INIT(32);
72 EXT int rx_stackSize INIT(RX_DEFAULT_STACK_SIZE);
74 /* Time until an unresponsive connection is declared dead */
75 EXT int rx_connDeadTime INIT(12);
76 /* Set rx default connection dead time; set on both services and connections at creation time */
77 #define rx_SetRxDeadTime(seconds) (rx_connDeadTime = (seconds))
79 /* Time until we toss an idle connection */
80 EXT int rx_idleConnectionTime INIT(700);
81 /* Time until we toss a peer structure, after all connections using are gone */
82 EXT int rx_idlePeerTime INIT(60);
84 /* The file server is temporarily salvaging */
85 EXT int rx_tranquil INIT(0);
87 /* UDP rcv buffer size */
88 EXT int rx_UdpBufSize INIT(64 * 1024);
89 #define rx_GetMinUdpBufSize() (64*1024)
90 #define rx_SetUdpBufSize(x) (((x)>rx_GetMinUdpBufSize()) ? (rx_UdpBufSize = (x)):0)
93 * Variables to control RX overload management. When the number of calls
94 * waiting for a thread exceed the threshold, new calls are aborted
95 * with the busy error.
97 EXT int rx_BusyThreshold INIT(-1); /* default is disabled */
98 EXT int rx_BusyError INIT(-1);
100 /* These definitions should be in one place */
102 #define RX_CBUF_TIME 180 /* Check for packet deficit */
103 #define RX_REAP_TIME 90 /* Check for tossable connections every 90 seconds */
105 #define RX_CBUF_TIME 120 /* Check for packet deficit */
106 #define RX_REAP_TIME 60 /* Check for tossable connections every 60 seconds */
109 #define RX_FAST_ACK_RATE 1 /* as of 3.4, ask for an ack every
112 EXT int rx_minWindow INIT(1);
113 EXT int rx_initReceiveWindow INIT(16); /* how much to accept */
114 EXT int rx_maxReceiveWindow INIT(32); /* how much to accept */
115 EXT int rx_initSendWindow INIT(8);
116 EXT int rx_maxSendWindow INIT(32);
117 EXT int rx_nackThreshold INIT(3); /* Number NACKS to trigger congestion recovery */
118 EXT int rx_nDgramThreshold INIT(4); /* Number of packets before increasing
119 * packets per datagram */
120 #define RX_MAX_FRAGS 4
121 EXT int rxi_nSendFrags INIT(RX_MAX_FRAGS); /* max fragments in a datagram */
122 EXT int rxi_nRecvFrags INIT(RX_MAX_FRAGS);
123 EXT int rxi_OrphanFragSize INIT(512);
125 #define RX_MAX_DGRAM_PACKETS 6 /* max packets per jumbogram */
127 EXT int rxi_nDgramPackets INIT(RX_MAX_DGRAM_PACKETS);
128 /* allow n packets between soft acks - must be power of 2 -1, else change
130 EXT int rxi_SoftAckRate INIT(RX_FAST_ACK_RATE);
131 /* consume n packets before sending hard ack, should be larger than above,
132 but not absolutely necessary. If it's smaller, than fast receivers will
133 send a soft ack, immediately followed by a hard ack. */
134 EXT int rxi_HardAckRate INIT(RX_FAST_ACK_RATE + 1);
136 /* EXT int rx_maxWindow INIT(15); Temporary HACK: transmit/receive window */
138 /* If window sizes become very variable (in terms of #packets), be
139 * sure that the sender can get back a hard acks without having to wait for
140 * some kind of timer event first (like a keep-alive, for instance).
141 * It might be kind of tricky, so it might be better to shrink the
142 * window size by reducing the packet size below the "natural" MTU. */
144 #define ACKHACK(p,r) { if (((p)->header.seq & (rxi_SoftAckRate))==0) (p)->header.flags |= RX_REQUEST_ACK; }
146 EXT int rx_nPackets INIT(100); /* obsolete; use rx_extraPackets now */
149 * pthreads thread-specific rx info support
150 * the rx_ts_info_t struct is meant to support all kinds of
151 * thread-specific rx data:
153 * _FPQ member contains a thread-specific free packet queue
155 #ifdef AFS_PTHREAD_ENV
156 EXT pthread_key_t rx_ts_info_key;
157 typedef struct rx_ts_info_t {
159 struct rx_queue queue;
160 int len; /* local queue length */
161 int delta; /* number of new packets alloc'd locally since last sync w/ global queue */
175 struct rx_packet * local_special_packet;
177 EXT struct rx_ts_info_t * rx_ts_info_init(); /* init function for thread-specific data struct */
178 #define RX_TS_INFO_GET(ts_info_p) \
180 ts_info_p = (struct rx_ts_info_t*)pthread_getspecific(rx_ts_info_key); \
181 if (ts_info_p == NULL) { \
182 assert((ts_info_p = rx_ts_info_init()) != NULL); \
185 #endif /* AFS_PTHREAD_ENV */
188 /* List of free packets */
189 /* in pthreads rx, free packet queue is now a two-tiered queueing system
190 * in which the first tier is thread-specific, and the second tier is
191 * a global free packet queue */
192 EXT struct rx_queue rx_freePacketQueue;
193 #define RX_FPQ_MARK_FREE(p) \
195 if ((p)->flags & RX_PKTFLAG_FREE) \
196 osi_Panic("rx packet already free\n"); \
197 (p)->flags |= RX_PKTFLAG_FREE; \
199 #define RX_FPQ_MARK_USED(p) \
201 if (!((p)->flags & RX_PKTFLAG_FREE)) \
202 osi_Panic("rx packet not free\n"); \
203 (p)->flags = 0; /* clear RX_PKTFLAG_FREE, initialize the rest */ \
204 (p)->header.flags = 0; \
206 #define RX_PACKET_IOV_INIT(p) \
208 (p)->wirevec[0].iov_base = (char *)((p)->wirehead); \
209 (p)->wirevec[0].iov_len = RX_HEADER_SIZE; \
210 (p)->wirevec[1].iov_base = (char *)((p)->localdata); \
211 (p)->wirevec[1].iov_len = RX_FIRSTBUFFERSIZE; \
213 #define RX_PACKET_IOV_FULLINIT(p) \
215 (p)->wirevec[0].iov_base = (char *)((p)->wirehead); \
216 (p)->wirevec[0].iov_len = RX_HEADER_SIZE; \
217 (p)->wirevec[1].iov_base = (char *)((p)->localdata); \
218 (p)->wirevec[1].iov_len = RX_FIRSTBUFFERSIZE; \
220 (p)->length = RX_FIRSTBUFFERSIZE; \
223 #ifdef RX_ENABLE_LOCKS
224 EXT afs_kmutex_t rx_freePktQ_lock;
225 #endif /* RX_ENABLE_LOCKS */
227 #if defined(AFS_PTHREAD_ENV)
228 #define RX_ENABLE_TSFPQ
229 EXT int rx_TSFPQGlobSize INIT(3); /* number of packets to transfer between global and local queues in one op */
230 EXT int rx_TSFPQLocalMax INIT(15); /* max number of packets on local FPQ before returning a glob to the global pool */
231 EXT int rx_TSFPQMaxProcs INIT(0); /* max number of threads expected */
232 EXT void rxi_MorePacketsTSFPQ(int apackets, int flush_global, int num_keep_local); /* more flexible packet alloc function */
233 EXT void rxi_AdjustLocalPacketsTSFPQ(int num_keep_local, int allow_overcommit); /* adjust thread-local queue length, for places where we know how many packets we will need a priori */
234 EXT void rxi_FlushLocalPacketsTSFPQ(void); /* flush all thread-local packets to global queue */
235 #define RX_TS_FPQ_FLUSH_GLOBAL 1
236 #define RX_TS_FPQ_PULL_GLOBAL 1
237 #define RX_TS_FPQ_ALLOW_OVERCOMMIT 1
238 /* compute the localmax and globsize values from rx_TSFPQMaxProcs and rx_nPackets.
239 arbitarily set local max so that all threads consume 90% of packets, if all local queues are full.
240 arbitarily set transfer glob size to 20% of max local packet queue length.
241 also set minimum values of 15 and 3. */
242 #define RX_TS_FPQ_COMPUTE_LIMITS \
244 register int newmax, newglob; \
245 newmax = (rx_nPackets * 9) / (10 * rx_TSFPQMaxProcs); \
246 newmax = (newmax >= 15) ? newmax : 15; \
247 newglob = newmax / 5; \
248 newglob = (newglob >= 3) ? newglob : 3; \
249 rx_TSFPQLocalMax = newmax; \
250 rx_TSFPQGlobSize = newglob; \
252 /* move packets from local (thread-specific) to global free packet queue.
253 rx_freePktQ_lock must be held. default is to move the difference between the current lenght, and the
254 allowed max plus one extra glob. */
255 #define RX_TS_FPQ_LTOG(rx_ts_info_p) \
258 register struct rx_packet * p; \
259 register int tsize = (rx_ts_info_p)->_FPQ.len - rx_TSFPQLocalMax + rx_TSFPQGlobSize; \
260 for (i=0,p=queue_Last(&((rx_ts_info_p)->_FPQ), rx_packet); \
261 i < tsize; i++,p=queue_Prev(p, rx_packet)); \
262 queue_SplitAfterPrepend(&((rx_ts_info_p)->_FPQ),&rx_freePacketQueue,p); \
263 (rx_ts_info_p)->_FPQ.len -= tsize; \
264 rx_nFreePackets += tsize; \
265 (rx_ts_info_p)->_FPQ.ltog_ops++; \
266 (rx_ts_info_p)->_FPQ.ltog_xfer += tsize; \
267 if ((rx_ts_info_p)->_FPQ.delta) { \
268 (rx_ts_info_p)->_FPQ.alloc_ops++; \
269 (rx_ts_info_p)->_FPQ.alloc_xfer += (rx_ts_info_p)->_FPQ.delta; \
270 MUTEX_ENTER(&rx_stats_mutex); \
271 rx_nPackets += (rx_ts_info_p)->_FPQ.delta; \
272 RX_TS_FPQ_COMPUTE_LIMITS; \
273 MUTEX_EXIT(&rx_stats_mutex); \
274 (rx_ts_info_p)->_FPQ.delta = 0; \
277 /* same as above, except user has direct control over number to transfer */
278 #define RX_TS_FPQ_LTOG2(rx_ts_info_p,num_transfer) \
281 register struct rx_packet * p; \
282 for (i=0,p=queue_Last(&((rx_ts_info_p)->_FPQ), rx_packet); \
283 i < (num_transfer); i++,p=queue_Prev(p, rx_packet)); \
284 queue_SplitAfterPrepend(&((rx_ts_info_p)->_FPQ),&rx_freePacketQueue,p); \
285 (rx_ts_info_p)->_FPQ.len -= (num_transfer); \
286 rx_nFreePackets += (num_transfer); \
287 (rx_ts_info_p)->_FPQ.ltog_ops++; \
288 (rx_ts_info_p)->_FPQ.ltog_xfer += (num_transfer); \
289 if ((rx_ts_info_p)->_FPQ.delta) { \
290 (rx_ts_info_p)->_FPQ.alloc_ops++; \
291 (rx_ts_info_p)->_FPQ.alloc_xfer += (rx_ts_info_p)->_FPQ.delta; \
292 MUTEX_ENTER(&rx_stats_mutex); \
293 rx_nPackets += (rx_ts_info_p)->_FPQ.delta; \
294 RX_TS_FPQ_COMPUTE_LIMITS; \
295 MUTEX_EXIT(&rx_stats_mutex); \
296 (rx_ts_info_p)->_FPQ.delta = 0; \
299 /* move packets from global to local (thread-specific) free packet queue.
300 rx_freePktQ_lock must be held. */
301 #define RX_TS_FPQ_GTOL(rx_ts_info_p) \
303 register int i, tsize; \
304 register struct rx_packet * p; \
305 tsize = (rx_TSFPQGlobSize <= rx_nFreePackets) ? \
306 rx_TSFPQGlobSize : rx_nFreePackets; \
307 for (i=0,p=queue_First(&rx_freePacketQueue, rx_packet); \
308 i < tsize; i++,p=queue_Next(p, rx_packet)); \
309 queue_SplitBeforeAppend(&rx_freePacketQueue,&((rx_ts_info_p)->_FPQ),p); \
310 (rx_ts_info_p)->_FPQ.len += i; \
311 rx_nFreePackets -= i; \
312 (rx_ts_info_p)->_FPQ.gtol_ops++; \
313 (rx_ts_info_p)->_FPQ.gtol_xfer += i; \
315 /* same as above, except user has direct control over number to transfer */
316 #define RX_TS_FPQ_GTOL2(rx_ts_info_p,num_transfer) \
319 register struct rx_packet * p; \
320 for (i=0,p=queue_First(&rx_freePacketQueue, rx_packet); \
321 i < (num_transfer); i++,p=queue_Next(p, rx_packet)); \
322 queue_SplitBeforeAppend(&rx_freePacketQueue,&((rx_ts_info_p)->_FPQ),p); \
323 (rx_ts_info_p)->_FPQ.len += i; \
324 rx_nFreePackets -= i; \
325 (rx_ts_info_p)->_FPQ.gtol_ops++; \
326 (rx_ts_info_p)->_FPQ.gtol_xfer += i; \
328 /* checkout a packet from the thread-specific free packet queue */
329 #define RX_TS_FPQ_CHECKOUT(rx_ts_info_p,p) \
331 (p) = queue_First(&((rx_ts_info_p)->_FPQ), rx_packet); \
333 RX_FPQ_MARK_USED(p); \
334 (rx_ts_info_p)->_FPQ.len--; \
335 (rx_ts_info_p)->_FPQ.checkout_ops++; \
336 (rx_ts_info_p)->_FPQ.checkout_xfer++; \
338 /* checkout multiple packets from the thread-specific free packet queue */
339 #define RX_TS_FPQ_CHECKOUT2(rx_ts_info_p,num_transfer,q) \
342 register struct rx_packet *p; \
343 for (i=0, p=queue_First(&((rx_ts_info_p)->_FPQ), rx_packet); \
344 i < (num_transfer); \
345 i++, p=queue_Next(p, rx_packet)) { \
346 RX_FPQ_MARK_USED(p); \
348 queue_SplitBeforeAppend(&((rx_ts_info_p)->_FPQ),(q),p); \
349 (rx_ts_info_p)->_FPQ.len -= (num_transfer); \
350 (rx_ts_info_p)->_FPQ.checkout_ops++; \
351 (rx_ts_info_p)->_FPQ.checkout_xfer += (num_transfer); \
353 /* check a packet into the thread-specific free packet queue */
354 #define RX_TS_FPQ_CHECKIN(rx_ts_info_p,p) \
356 queue_Prepend(&((rx_ts_info_p)->_FPQ), (p)); \
357 RX_FPQ_MARK_FREE(p); \
358 (rx_ts_info_p)->_FPQ.len++; \
359 (rx_ts_info_p)->_FPQ.checkin_ops++; \
360 (rx_ts_info_p)->_FPQ.checkin_xfer++; \
362 /* check multiple packets into the thread-specific free packet queue */
363 /* num_transfer must equal length of (q); it is not a means of checking
364 * in part of (q). passing num_transfer just saves us instructions
365 * since caller already knows length of (q) for other reasons */
366 #define RX_TS_FPQ_CHECKIN2(rx_ts_info_p,num_transfer,q) \
368 register struct rx_packet *p, *np; \
369 for (queue_Scan((q), p, np, rx_packet)) { \
370 RX_FPQ_MARK_FREE(p); \
372 queue_SplicePrepend(&((rx_ts_info_p)->_FPQ),(q)); \
373 (rx_ts_info_p)->_FPQ.len += (num_transfer); \
374 (rx_ts_info_p)->_FPQ.checkin_ops++; \
375 (rx_ts_info_p)->_FPQ.checkin_xfer += (num_transfer); \
377 #endif /* AFS_PTHREAD_ENV */
379 /* Number of free packets */
380 EXT int rx_nFreePackets INIT(0);
381 EXT int rxi_NeedMorePackets INIT(0);
382 EXT int rx_nWaiting INIT(0);
383 EXT int rx_nWaited INIT(0);
384 EXT int rx_packetReclaims INIT(0);
386 /* largest packet which we can safely receive, initialized to AFS 3.2 value
387 * This is provided for backward compatibility with peers which may be unable
388 * to swallow anything larger. THIS MUST NEVER DECREASE WHILE AN APPLICATION
390 EXT afs_uint32 rx_maxReceiveSize INIT(OLD_MAX_PACKET_SIZE * RX_MAX_FRAGS +
391 UDP_HDR_SIZE * (RX_MAX_FRAGS - 1));
393 /* this is the maximum packet size that the user wants us to receive */
394 /* this is set by rxTune if required */
395 EXT afs_uint32 rx_maxReceiveSizeUser INIT(0xffffffff);
397 /* rx_MyMaxSendSize is the size of the largest packet we will send,
398 * including the RX header. Just as rx_maxReceiveSize is the
399 * max we will receive, including the rx header.
401 EXT afs_uint32 rx_MyMaxSendSize INIT(8588);
403 /* Maximum size of a jumbo datagram we can receive */
404 EXT afs_uint32 rx_maxJumboRecvSize INIT(RX_MAX_PACKET_SIZE);
406 /* need this to permit progs to run on AIX systems */
407 EXT int (*rxi_syscallp) (afs_uint32 a3, afs_uint32 a4, void *a5)INIT(0);
409 /* List of free queue entries */
410 EXT struct rx_serverQueueEntry *rx_FreeSQEList INIT(0);
411 #ifdef RX_ENABLE_LOCKS
412 EXT afs_kmutex_t freeSQEList_lock;
415 /* List of free call structures */
416 EXT struct rx_queue rx_freeCallQueue;
417 #ifdef RX_ENABLE_LOCKS
418 EXT afs_kmutex_t rx_freeCallQueue_lock;
420 EXT afs_int32 rxi_nCalls INIT(0);
422 /* Port requested at rx_Init. If this is zero, the actual port used will be different--but it will only be used for client operations. If non-zero, server provided services may use the same port. */
425 #if !defined(KERNEL) && !defined(AFS_PTHREAD_ENV)
426 /* 32-bit select Mask for rx_Listener. */
427 EXT fd_set rx_selectMask;
428 EXT osi_socket rx_maxSocketNumber; /* Maximum socket number in the select mask. */
429 /* Minumum socket number in the select mask. */
430 EXT osi_socket rx_minSocketNumber INIT(0x7fffffff);
433 /* This is actually the minimum number of packets that must remain free,
434 overall, immediately after a packet of the requested class has been
435 allocated. *WARNING* These must be assigned with a great deal of care.
436 In order, these are receive quota, send quota, special quota, receive
437 continuation quota, and send continuation quota. */
438 #define RX_PACKET_QUOTAS {1, 10, 0, 1, 10}
439 /* value large enough to guarantee that no allocation fails due to RX_PACKET_QUOTAS.
440 Make it a little bigger, just for fun */
441 #define RX_MAX_QUOTA 15 /* part of min packet computation */
442 EXT int rx_packetQuota[RX_N_PACKET_CLASSES] INIT(RX_PACKET_QUOTAS);
443 EXT int meltdown_1pkt INIT(1); /* prefer to schedule single-packet calls */
444 EXT int rxi_doreclaim INIT(1); /* if discard one packet, discard all */
445 EXT int rxi_md2cnt INIT(0); /* counter of skipped calls */
446 EXT int rxi_2dchoice INIT(1); /* keep track of another call to schedule */
448 /* quota system: each attached server process must be able to make
449 progress to avoid system deadlock, so we ensure that we can always
450 handle the arrival of the next unacknowledged data packet for an
451 attached call. rxi_dataQuota gives the max # of packets that must be
452 reserved for active calls for them to be able to make progress, which is
453 essentially enough to queue up a window-full of packets (the first packet
454 may be missing, so these may not get read) + the # of packets the thread
455 may use before reading all of its input (# free must be one more than send
456 packet quota). Thus, each thread allocates rx_maxReceiveWindow+1 (max
457 queued packets) + an extra for sending data. The system also reserves
458 RX_MAX_QUOTA (must be more than RX_PACKET_QUOTA[i], which is 10), so that
459 the extra packet can be sent (must be under the system-wide send packet
460 quota to send any packets) */
461 /* # to reserve so that thread with input can still make calls (send packets)
463 EXT int rxi_dataQuota INIT(RX_MAX_QUOTA); /* packets to reserve for active threads */
465 EXT afs_int32 rxi_availProcs INIT(0); /* number of threads in the pool */
466 EXT afs_int32 rxi_totalMin INIT(0); /* Sum(minProcs) forall services */
467 EXT afs_int32 rxi_minDeficit INIT(0); /* number of procs needed to handle all minProcs */
469 EXT int rx_nextCid; /* Next connection call id */
470 EXT int rx_epoch; /* Initialization time of rx */
471 #ifdef RX_ENABLE_LOCKS
472 EXT afs_kcondvar_t rx_waitingForPackets_cv;
474 EXT char rx_waitingForPackets; /* Processes set and wait on this variable when waiting for packet buffers */
476 EXT struct rx_stats rx_stats;
478 EXT struct rx_peer **rx_peerHashTable;
479 EXT struct rx_connection **rx_connHashTable;
480 EXT struct rx_connection *rx_connCleanup_list INIT(0);
481 EXT afs_uint32 rx_hashTableSize INIT(257); /* Prime number */
482 #ifdef RX_ENABLE_LOCKS
483 EXT afs_kmutex_t rx_peerHashTable_lock;
484 EXT afs_kmutex_t rx_connHashTable_lock;
485 #endif /* RX_ENABLE_LOCKS */
487 #define CONN_HASH(host, port, cid, epoch, type) ((((cid)>>RX_CIDSHIFT)%rx_hashTableSize))
489 #define PEER_HASH(host, port) ((host ^ port) % rx_hashTableSize)
491 /* Forward definitions of internal procedures */
492 #define rxi_ChallengeOff(conn) rxevent_Cancel((conn)->challengeEvent, (struct rx_call*)0, 0);
493 #define rxi_KeepAliveOff(call) rxevent_Cancel((call)->keepAliveEvent, call, RX_CALL_REFCOUNT_ALIVE)
495 #define rxi_AllocSecurityObject() (struct rx_securityClass *) rxi_Alloc(sizeof(struct rx_securityClass))
496 #define rxi_FreeSecurityObject(obj) rxi_Free(obj, sizeof(struct rx_securityClass))
497 #define rxi_AllocService() (struct rx_service *) rxi_Alloc(sizeof(struct rx_service))
498 #define rxi_FreeService(obj) rxi_Free(obj, sizeof(struct rx_service))
499 #define rxi_AllocPeer() (struct rx_peer *) rxi_Alloc(sizeof(struct rx_peer))
500 #define rxi_FreePeer(peer) rxi_Free(peer, sizeof(struct rx_peer))
501 #define rxi_AllocConnection() (struct rx_connection *) rxi_Alloc(sizeof(struct rx_connection))
502 #define rxi_FreeConnection(conn) (rxi_Free(conn, sizeof(struct rx_connection)))
505 /* Some debugging stuff */
506 EXT FILE *rx_debugFile; /* Set by the user to a stdio file for debugging output */
507 EXT FILE *rxevent_debugFile; /* Set to an stdio descriptor for event logging to that file */
509 #define rx_Log rx_debugFile
511 EXT int rxdebug_active;
513 #define dpf(args) if (rxdebug_active) rxi_DebugPrint args;
518 #define dpf(args) if (rx_debugFile) rxi_DebugPrint args; else
520 #define rx_Log_event rxevent_debugFile
522 EXT char *rx_packetTypes[RX_N_PACKET_TYPES] INIT(RX_PACKET_TYPES); /* Strings defined in rx.h */
526 * Counter used to implement connection specific data
528 EXT int rxi_keyCreate_counter INIT(0);
530 * Array of function pointers used to destory connection specific data
532 EXT rx_destructor_t *rxi_keyCreate_destructor INIT(NULL);
533 #ifdef RX_ENABLE_LOCKS
534 EXT afs_kmutex_t rxi_keyCreate_lock;
535 #endif /* RX_ENABLE_LOCKS */
543 * SERVER ONLY: Threshholds used to throttle error replies to looping
544 * clients. When consecutive calls are aborting with the same error, the
545 * server throttles the client by waiting before sending error messages.
546 * Disabled if abort thresholds are zero.
548 EXT int rxi_connAbortThreshhold INIT(0);
549 EXT int rxi_connAbortDelay INIT(3000);
550 EXT int rxi_callAbortThreshhold INIT(0);
551 EXT int rxi_callAbortDelay INIT(3000);
554 * Thread specific thread ID used to implement LWP_Index().
557 #if defined(AFS_PTHREAD_ENV)
558 EXT int rxi_fcfs_thread_num INIT(0);
559 EXT pthread_key_t rx_thread_id_key;
560 /* keep track of pthread numbers - protected by rx_stats_mutex,
561 except in rx_Init() before mutex exists! */
562 EXT int rxi_pthread_hinum INIT(0);
564 #define rxi_fcfs_thread_num (0)
567 #if defined(RX_ENABLE_LOCKS)
568 EXT afs_kmutex_t rx_stats_mutex; /* used to activate stats gathering */
571 EXT int rx_enable_stats INIT(0);
574 * Set this flag to enable the listener thread to trade places with an idle
575 * worker thread to move the context switch from listener to worker out of
578 EXT int rx_enable_hot_thread INIT(0);
580 #endif /* AFS_RX_GLOBALS_H */