annotate libfdcore/p_sr.c @ 662:2e94ef0515d7 1.1.0-rc1

Updated copyright information
author Sebastien Decugis <sdecugis@nict.go.jp>
date Fri, 14 Jan 2011 16:27:21 +0900
parents f198d16fa7f4
children 8c3dc8584dab
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*********************************************************************************************************
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2 * Software License Agreement (BSD License) *
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3 * Author: Sebastien Decugis <sdecugis@nict.go.jp> *
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4 * *
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2e94ef0515d7 Updated copyright information
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5 * Copyright (c) 2011, WIDE Project and NICT *
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6 * All rights reserved. *
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7 * *
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8 * Redistribution and use of this software in source and binary forms, with or without modification, are *
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9 * permitted provided that the following conditions are met: *
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10 * *
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11 * * Redistributions of source code must retain the above *
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12 * copyright notice, this list of conditions and the *
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13 * following disclaimer. *
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14 * *
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15 * * Redistributions in binary form must reproduce the above *
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16 * copyright notice, this list of conditions and the *
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17 * following disclaimer in the documentation and/or other *
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18 * materials provided with the distribution. *
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19 * *
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20 * * Neither the name of the WIDE Project or NICT nor the *
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21 * names of its contributors may be used to endorse or *
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22 * promote products derived from this software without *
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23 * specific prior written permission of WIDE Project and *
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24 * NICT. *
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25 * *
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26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED *
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27 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
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28 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR *
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29 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT *
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30 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS *
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31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR *
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32 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF *
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33 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
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34 *********************************************************************************************************/
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35
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36 #include "fdcore-internal.h"
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37
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38 #ifndef SR_DEBUG_LVL
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39 #define SR_DEBUG_LVL ANNOYING
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40 #endif /* SR_DEBUG_LVL */
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41
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42 /* Structure to store a sent request */
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43 struct sentreq {
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44 struct fd_list chain; /* the "o" field points directly to the hop-by-hop of the request (uint32_t *) */
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45 struct msg *req; /* A request that was sent and not yet answered. */
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46 uint32_t prevhbh;/* The value to set in the hbh header when the message is retrieved */
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47 struct fd_list expire; /* the list of expiring requests */
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48 struct timespec added_on; /* the time the request was added */
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49 };
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50
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51 /* Find an element in the hbh list, or the following one */
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52 static struct fd_list * find_or_next(struct fd_list * srlist, uint32_t hbh, int * match)
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53 {
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54 struct fd_list * li;
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55 *match = 0;
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56 for (li = srlist->next; li != srlist; li = li->next) {
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57 uint32_t * nexthbh = li->o;
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58 if (*nexthbh < hbh)
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59 continue;
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60 if (*nexthbh == hbh)
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61 *match = 1;
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62 break;
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63 }
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64 return li;
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65 }
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67 static void srl_dump(const char * text, struct fd_list * srlist)
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68 {
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69 struct fd_list * li;
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70 struct timespec now;
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71 if (!TRACE_BOOL(SR_DEBUG_LVL))
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72 return;
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73 CHECK_SYS_DO( clock_gettime(CLOCK_REALTIME, &now), );
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74 fd_log_debug("%sSentReq list @%p:\n", text, srlist);
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75 for (li = srlist->next; li != srlist; li = li->next) {
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76 struct sentreq * sr = (struct sentreq *)li;
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77 uint32_t * nexthbh = li->o;
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78 fd_log_debug(" - Next req (%x): [since %ld.%06ld sec]\n", *nexthbh,
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79 (now.tv_nsec >= sr->added_on.tv_nsec) ? (now.tv_sec - sr->added_on.tv_sec) : (now.tv_sec - sr->added_on.tv_sec - 1),
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80 (now.tv_nsec >= sr->added_on.tv_nsec) ? (now.tv_nsec - sr->added_on.tv_nsec) / 1000 : (now.tv_nsec - sr->added_on.tv_nsec + 1000000000) / 1000);
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81 fd_msg_dump_one(SR_DEBUG_LVL + 1, sr->req);
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82 }
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83 }
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84
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85 /* (detached) thread that calls the anscb on expired messages.
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86 We do it in a separate thread to avoid blocking the reception of new messages during this time */
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87 static void * call_anscb_expire(void * arg) {
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88 struct msg * expired_req = arg;
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89
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90 void (*anscb)(void *, struct msg **);
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91 void * data;
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92
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93 TRACE_ENTRY("%p", arg);
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94 CHECK_PARAMS_DO( arg, return NULL );
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95
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96 /* Set the thread name */
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97 fd_log_threadname ( "Expired req cb." );
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98
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99 /* Log */
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100 TRACE_DEBUG(INFO, "The expiration timer for a request has been reached, abording this attempt now & calling cb...");
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101
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102 /* Retrieve callback in the message */
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103 CHECK_FCT_DO( fd_msg_anscb_get( expired_req, &anscb, &data ), return NULL);
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104 ASSERT(anscb);
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105
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106 /* Call it */
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107 (*anscb)(data, &expired_req);
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108
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109 /* If the callback did not dispose of the message, do it now */
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110 if (expired_req) {
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111 CHECK_FCT_DO( fd_msg_free(expired_req), /* ignore */ );
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112 }
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113
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114 /* Finish */
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115 return NULL;
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116 }
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117
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118 /* thread that handles messages expiring. The thread is started / stopped only when needed */
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119 static void * sr_expiry_th(void * arg) {
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120 struct sr_list * srlist = arg;
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parents: 258
diff changeset
121 struct msg * expired_req;
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
122 pthread_attr_t detached;
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
123
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
124 TRACE_ENTRY("%p", arg);
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
125 CHECK_PARAMS_DO( arg, return NULL );
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
126
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
127 /* Set the thread name */
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
128 {
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
129 char buf[48];
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
130 sprintf(buf, "ReqExp/%.*s", (int)sizeof(buf) - 8, ((struct fd_peer *)(srlist->exp.o))->p_hdr.info.pi_diamid);
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
131 fd_log_threadname ( buf );
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
132 }
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
133
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
134 CHECK_POSIX_DO( pthread_attr_init(&detached), return NULL );
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
135 CHECK_POSIX_DO( pthread_attr_setdetachstate(&detached, PTHREAD_CREATE_DETACHED), return NULL );
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
136
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
137 CHECK_POSIX_DO( pthread_mutex_lock(&srlist->mtx), return NULL );
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
138 pthread_cleanup_push( fd_cleanup_mutex, &srlist->mtx );
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
139
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
140 do {
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
141 struct timespec now, *t;
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
142 struct sentreq * first;
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
143 pthread_t th;
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
144
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
145 /* Check if there are expiring requests available */
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
146 if (FD_IS_LIST_EMPTY(&srlist->exp)) {
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
147 /* Just wait for a change or cancelation */
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
148 CHECK_POSIX_DO( pthread_cond_wait( &srlist->cnd, &srlist->mtx ), goto error );
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
149 /* Restart the loop on wakeup */
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
150 continue;
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
151 }
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
152
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
153 /* Get the pointer to the request that expires first */
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
154 first = (struct sentreq *)(srlist->exp.next->o);
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
155 t = fd_msg_anscb_gettimeout( first->req );
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
156 ASSERT(t);
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
157
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
158 /* Get the current time */
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
159 CHECK_SYS_DO( clock_gettime(CLOCK_REALTIME, &now), goto error );
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
160
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
161 /* If first request is not expired, we just wait until it happens */
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
162 if ( TS_IS_INFERIOR( &now, t ) ) {
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
163
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
164 CHECK_POSIX_DO2( pthread_cond_timedwait( &srlist->cnd, &srlist->mtx, t ),
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
165 ETIMEDOUT, /* ETIMEDOUT is a normal return value, continue */,
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
166 /* on other error, */ goto error );
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
167
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
168 /* on wakeup, loop */
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
169 continue;
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
170 }
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
171
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
172 /* Now, the first request in the list is expired; remove it and call the anscb for it in a new thread */
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
173 fd_list_unlink(&first->chain);
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
174 fd_list_unlink(&first->expire);
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
175 expired_req = first->req;
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
176 free(first);
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
177
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
178 CHECK_POSIX_DO( pthread_create( &th, &detached, call_anscb_expire, expired_req ), goto error );
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
179
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
180 /* loop */
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
181 } while (1);
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
182 error:
650
7e9a5e9aad64 Fix compilation warning
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 649
diff changeset
183 ; /* pthread_cleanup_pop sometimes expands as "} ..." and the label beofre this cause some compilers to complain... */
649
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
184 pthread_cleanup_pop( 1 );
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
185 return NULL;
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
186 }
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
187
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
188
34
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
189 /* Store a new sent request */
165
4679ff581d6a Fix invalid restore of the hop-by-hop id on forwarded answers
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 74
diff changeset
190 int fd_p_sr_store(struct sr_list * srlist, struct msg **req, uint32_t *hbhloc, uint32_t hbh_restore)
34
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
191 {
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
192 struct sentreq * sr;
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
193 struct fd_list * next;
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
194 int match;
649
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
195 struct timespec * ts;
34
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
196
165
4679ff581d6a Fix invalid restore of the hop-by-hop id on forwarded answers
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 74
diff changeset
197 TRACE_ENTRY("%p %p %p %x", srlist, req, hbhloc, hbh_restore);
34
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
198 CHECK_PARAMS(srlist && req && *req && hbhloc);
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
199
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
200 CHECK_MALLOC( sr = malloc(sizeof(struct sentreq)) );
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
201 memset(sr, 0, sizeof(struct sentreq));
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
202 fd_list_init(&sr->chain, hbhloc);
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
203 sr->req = *req;
165
4679ff581d6a Fix invalid restore of the hop-by-hop id on forwarded answers
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 74
diff changeset
204 sr->prevhbh = hbh_restore;
649
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
205 fd_list_init(&sr->expire, sr);
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
206 CHECK_SYS( clock_gettime(CLOCK_REALTIME, &sr->added_on) );
34
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
207
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
208 /* Search the place in the list */
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
209 CHECK_POSIX( pthread_mutex_lock(&srlist->mtx) );
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
210 next = find_or_next(&srlist->srs, *hbhloc, &match);
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
211 if (match) {
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
212 TRACE_DEBUG(INFO, "A request with the same hop-by-hop Id was already sent: error");
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
213 free(sr);
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
214 CHECK_POSIX_DO( pthread_mutex_unlock(&srlist->mtx), /* ignore */ );
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
215 return EINVAL;
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
216 }
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
217
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
218 /* Save in the list */
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
219 *req = NULL;
0e2b57789361 Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
220 fd_list_insert_before(next, &sr->chain);
71
cba30013d8f5 Added debug messages
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 34
diff changeset
221 srl_dump("Saved new request, ", &srlist->srs);
649
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
222
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
223 /* In case of request with a timeout, also store in the timeout list */
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
224 ts = fd_msg_anscb_gettimeout( sr->req );
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
225 if (ts) {
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
226 struct fd_list * li;
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
227 struct timespec * t;
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
228
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
229 /* browse srlist->exp from the end */
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
230 for (li = srlist->exp.prev; li != &srlist->exp; li = li->prev) {
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
231 struct sentreq * s = (struct sentreq *)(li->o);
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
232 t = fd_msg_anscb_gettimeout( s->req );
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
233 ASSERT( t ); /* sanity */
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
234 if (TS_IS_INFERIOR(t, ts))
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
235 break;
5e5d8152c229 Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 258
diff changeset
236 }
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237
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238 fd_list_insert_after(li, &sr->expire);
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239
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240 /* if the thread does not exist yet, create it */
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241 if (srlist->thr == (pthread_t)NULL) {
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242 CHECK_POSIX_DO( pthread_create(&srlist->thr, NULL, sr_expiry_th, srlist), /* continue anyway */);
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243 } else {
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244 /* or, if added in first position, signal the condvar to update the sleep time of the thread */
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245 if (li == &srlist->exp) {
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246 CHECK_POSIX_DO( pthread_cond_signal(&srlist->cnd), /* continue anyway */);
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247 }
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248 }
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249 }
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250
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251 CHECK_POSIX( pthread_mutex_unlock(&srlist->mtx) );
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252 return 0;
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253 }
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254
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255 /* Fetch a request by hbh */
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256 int fd_p_sr_fetch(struct sr_list * srlist, uint32_t hbh, struct msg **req)
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257 {
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258 struct sentreq * sr;
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259 int match;
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260
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261 TRACE_ENTRY("%p %x %p", srlist, hbh, req);
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262 CHECK_PARAMS(srlist && req);
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263
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264 /* Search the request in the list */
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265 CHECK_POSIX( pthread_mutex_lock(&srlist->mtx) );
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266 srl_dump("Fetching a request, ", &srlist->srs);
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267 sr = (struct sentreq *)find_or_next(&srlist->srs, hbh, &match);
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268 if (!match) {
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269 TRACE_DEBUG(INFO, "There is no saved request with this hop-by-hop id (%x)", hbh);
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270 *req = NULL;
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271 } else {
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272 /* Restore hop-by-hop id */
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273 *((uint32_t *)sr->chain.o) = sr->prevhbh;
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274 /* Unlink */
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275 fd_list_unlink(&sr->chain);
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276 fd_list_unlink(&sr->expire);
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277 *req = sr->req;
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278 free(sr);
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279 }
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280 CHECK_POSIX( pthread_mutex_unlock(&srlist->mtx) );
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281
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282 /* do not stop the expire thread here, it might cause creating/destroying it very often otherwise */
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283
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284 /* Done */
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285 return 0;
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286 }
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287
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288 /* Failover requests (free or requeue routables) */
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289 void fd_p_sr_failover(struct sr_list * srlist)
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290 {
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291 CHECK_POSIX_DO( pthread_mutex_lock(&srlist->mtx), /* continue anyway */ );
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292 while (!FD_IS_LIST_EMPTY(&srlist->srs)) {
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293 struct sentreq * sr = (struct sentreq *)(srlist->srs.next);
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294 fd_list_unlink(&sr->chain);
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295 fd_list_unlink(&sr->expire);
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296 if (fd_msg_is_routable(sr->req)) {
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297 struct msg_hdr * hdr = NULL;
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298
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299 /* Set the 'T' flag */
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300 CHECK_FCT_DO(fd_msg_hdr(sr->req, &hdr), /* continue */);
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301 if (hdr)
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302 hdr->msg_flags |= CMD_FLAG_RETRANSMIT;
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303
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304 /* Requeue for sending to another peer */
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305 CHECK_FCT_DO(fd_fifo_post(fd_g_outgoing, &sr->req),
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306 CHECK_FCT_DO(fd_msg_free(sr->req), /* What can we do more? */));
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307 } else {
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308 /* Just free the request... */
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309 CHECK_FCT_DO(fd_msg_free(sr->req), /* Ignore */);
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310 }
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311 free(sr);
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312 }
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313 /* The list of expiring requests must be empty now */
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314 ASSERT( FD_IS_LIST_EMPTY(&srlist->exp) );
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315
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316 CHECK_POSIX_DO( pthread_mutex_unlock(&srlist->mtx), /* continue anyway */ );
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317
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318 /* Terminate the expiry thread (must be done when the lock can be taken) */
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319 CHECK_FCT_DO( fd_thr_term(&srlist->thr), /* ignore error */ );
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320 }
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321
"Welcome to our mercurial repository"