Mercurial > hg > freeDiameter
annotate libfdcore/p_out.c @ 1554:566bb46cc73f
Updated copyright information
author | Sebastien Decugis <sdecugis@freediameter.net> |
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date | Tue, 06 Oct 2020 21:34:53 +0800 |
parents | 84a3c9c4b834 |
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rev | line source |
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1 /********************************************************************************************************* |
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2 * Software License Agreement (BSD License) * |
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3 * Author: Sebastien Decugis <sdecugis@freediameter.net> * |
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4 * * |
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5 * Copyright (c) 2016, 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 /* Alloc a new hbh for requests, bufferize the message and send on the connection, save in sentreq if provided */ |
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39 static int do_send(struct msg ** msg, struct cnxctx * cnx, uint32_t * hbh, struct fd_peer * peer) |
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40 { |
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41 struct msg_hdr * hdr; |
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42 int msg_is_a_req; |
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43 uint8_t * buf; |
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44 size_t sz; |
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45 int ret; |
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46 uint32_t bkp_hbh = 0; |
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47 struct msg *cpy_for_logs_only; |
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48 |
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49 TRACE_ENTRY("%p %p %p %p", msg, cnx, hbh, peer); |
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50 |
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51 /* Retrieve the message header */ |
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52 CHECK_FCT( fd_msg_hdr(*msg, &hdr) ); |
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53 |
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54 msg_is_a_req = (hdr->msg_flags & CMD_FLAG_REQUEST); |
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55 if (msg_is_a_req) { |
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56 CHECK_PARAMS(hbh && peer); |
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57 /* Alloc the hop-by-hop id and increment the value for next message */ |
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58 bkp_hbh = hdr->msg_hbhid; |
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59 hdr->msg_hbhid = *hbh; |
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60 *hbh = hdr->msg_hbhid + 1; |
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61 } |
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62 |
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63 /* Create the message buffer */ |
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64 CHECK_FCT(fd_msg_bufferize( *msg, &buf, &sz )); |
72 | 65 pthread_cleanup_push( free, buf ); |
66 | |
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67 cpy_for_logs_only = *msg; |
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68 |
72 | 69 /* Save a request before sending so that there is no race condition with the answer */ |
70 if (msg_is_a_req) { | |
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71 CHECK_FCT_DO( ret = fd_p_sr_store(&peer->p_sr, msg, &hdr->msg_hbhid, bkp_hbh), goto out ); |
72 | 72 } |
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73 |
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74 /* Log the message */ |
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75 fd_hook_call(HOOK_MESSAGE_SENT, cpy_for_logs_only, peer, NULL, fd_msg_pmdl_get(cpy_for_logs_only)); |
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76 |
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77 pthread_cleanup_push((void *)fd_msg_free, *msg /* might be NULL, no problem */); |
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78 |
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79 /* Send the message */ |
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80 CHECK_FCT_DO( ret = fd_cnx_send(cnx, buf, sz), ); |
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81 |
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82 pthread_cleanup_pop(0); |
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83 |
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84 out: |
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85 ; |
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86 pthread_cleanup_pop(1); |
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87 |
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88 if (ret) |
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89 return ret; |
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90 |
72 | 91 /* Free remaining messages (i.e. answers) */ |
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92 if (*msg) { |
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93 CHECK_FCT( fd_msg_free(*msg) ); |
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94 *msg = NULL; |
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95 } |
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96 |
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97 return 0; |
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98 } |
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99 |
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100 /* The code of the "out" thread */ |
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101 static void * out_thr(void * arg) |
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102 { |
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103 struct fd_peer * peer = arg; |
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104 int stop = 0; |
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105 struct msg * msg; |
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106 ASSERT( CHECK_PEER(peer) ); |
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107 |
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108 /* Set the thread name */ |
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109 { |
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110 char buf[48]; |
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111 snprintf(buf, sizeof(buf), "OUT/%s", peer->p_hdr.info.pi_diamid); |
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112 fd_log_threadname ( buf ); |
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113 } |
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114 |
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115 /* Loop until cancelation */ |
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116 while (!stop) { |
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117 int ret; |
34
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118 |
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119 /* Retrieve next message to send */ |
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120 CHECK_FCT_DO( fd_fifo_get(peer->p_tosend, &msg), goto error ); |
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121 |
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122 /* Send the message, log any error */ |
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Further preparation of the DTLS integration. Some cleanups in the GNUTLS handling.
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123 CHECK_FCT_DO( ret = do_send(&msg, peer->p_cnxctx, &peer->p_hbh, peer), |
34
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124 { |
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125 if (msg) { |
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126 char buf[256]; |
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Fix a number of compilation warnings
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127 snprintf(buf, sizeof(buf), "Error while sending this message: %s", strerror(ret)); |
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128 fd_hook_call(HOOK_MESSAGE_DROPPED, msg, NULL, buf, fd_msg_pmdl_get(msg)); |
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129 fd_msg_free(msg); |
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130 } |
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131 stop = 1; |
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132 } ); |
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133 |
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134 } |
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135 |
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136 /* If we're here it means there was an error on the socket. We need to continue to purge the fifo & until we are canceled */ |
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137 CHECK_FCT_DO( fd_event_send(peer->p_events, FDEVP_CNX_ERROR, 0, NULL), /* What do we do if it fails? */ ); |
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138 |
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139 /* Requeue all routable messages in the global "out" queue, until we are canceled once the PSM deals with the CNX_ERROR sent above */ |
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140 while ( fd_fifo_get(peer->p_tosend, &msg) == 0 ) { |
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141 if (fd_msg_is_routable(msg)) { |
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142 CHECK_FCT_DO(fd_fifo_post_noblock(peer->p_tofailover, (void *)&msg), |
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143 { |
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144 /* fallback: destroy the message */ |
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145 fd_hook_call(HOOK_MESSAGE_DROPPED, msg, NULL, "Internal error: unable to requeue this message during failover process", fd_msg_pmdl_get(msg)); |
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146 CHECK_FCT_DO(fd_msg_free(msg), /* What can we do more? */) |
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147 } ); |
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148 } else { |
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149 /* Just free it */ |
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150 /* fd_hook_call(HOOK_MESSAGE_DROPPED, m, NULL, "Non-routable message freed during handover", fd_msg_pmdl_get(m)); */ |
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151 CHECK_FCT_DO(fd_msg_free(msg), /* What can we do more? */) |
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152 } |
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153 } |
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154 |
33
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155 error: |
34
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156 /* It is not really a connection error, but the effect is the same, we are not able to send anymore message */ |
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157 CHECK_FCT_DO( fd_event_send(peer->p_events, FDEVP_CNX_ERROR, 0, NULL), /* What do we do if it fails? */ ); |
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158 return NULL; |
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159 } |
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160 |
229
965f5971dc23
Broadcast CEA over all streams to avoid possible race condition
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208
diff
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161 /* Wrapper to sending a message either by out thread (peer in OPEN state) or directly; cnx or peer must be provided. Flags are valid only for direct sending, not through thread (unused) */ |
1238
8f9684264fe0
Change management of the p_reqin_count counter to be updated only on routable messages. This should limit the errors in the counter value resulting from rejected or discarded link-local messages.
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162 int fd_out_send(struct msg ** msg, struct cnxctx * cnx, struct fd_peer * peer, int update_reqin_cnt) |
33
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163 { |
1010
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Implement a new counter on pending answers to send back to a peer.
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164 struct msg_hdr * hdr; |
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165 |
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166 TRACE_ENTRY("%p %p %p", msg, cnx, peer); |
33
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|
167 CHECK_PARAMS( msg && *msg && (cnx || (peer && peer->p_cnxctx))); |
1299
035f489b845b
Added a new hook HOOK_MESSAGE_SENDING
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168 |
035f489b845b
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169 fd_hook_call(HOOK_MESSAGE_SENDING, *msg, peer, NULL, fd_msg_pmdl_get(*msg)); |
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170 |
1238
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171 if (update_reqin_cnt && peer) { |
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172 CHECK_FCT( fd_msg_hdr(*msg, &hdr) ); |
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173 if (!(hdr->msg_flags & CMD_FLAG_REQUEST)) { |
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174 /* Update the count of pending answers to send */ |
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175 CHECK_POSIX( pthread_mutex_lock(&peer->p_state_mtx) ); |
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176 peer->p_reqin_count--; |
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177 CHECK_POSIX( pthread_mutex_unlock(&peer->p_state_mtx) ); |
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178 } |
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179 } |
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180 |
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
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181 if (fd_peer_getstate(peer) == STATE_OPEN) { |
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182 /* Normal case: just queue for the out thread to pick it up */ |
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183 CHECK_FCT( fd_fifo_post(peer->p_tosend, msg) ); |
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184 |
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185 } else { |
688
8c3dc8584dab
Prepared capability for messages logging to separate files / folders
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186 int ret; |
33
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187 uint32_t *hbh = NULL; |
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188 |
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189 /* In other cases, the thread is not running, so we handle the sending directly */ |
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190 if (peer) |
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191 hbh = &peer->p_hbh; |
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192 |
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193 if (!cnx) |
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194 cnx = peer->p_cnxctx; |
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195 |
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196 /* Do send the message */ |
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Further preparation of the DTLS integration. Some cleanups in the GNUTLS handling.
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197 CHECK_FCT_DO( ret = do_send(msg, cnx, hbh, peer), |
35
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198 { |
455
7250e91f0662
Some additional flush enforcement to attempt to avoid some possible problems
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|
199 if (msg) { |
1113
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|
200 char buf[256]; |
1119
79dd22145f52
Fix a number of compilation warnings
Sebastien Decugis <sdecugis@freediameter.net>
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|
201 snprintf(buf, sizeof(buf), "Error while sending this message: %s", strerror(ret)); |
1113
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Added calls to remaining hooks
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|
202 fd_hook_call(HOOK_MESSAGE_DROPPED, *msg, NULL, buf, fd_msg_pmdl_get(*msg)); |
455
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|
203 fd_msg_free(*msg); |
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204 *msg = NULL; |
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205 } |
35
6486e97f56ae
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34
diff
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|
206 } ); |
33
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|
207 } |
e6fcdf12b9a0
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|
208 |
e6fcdf12b9a0
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|
209 return 0; |
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|
210 } |
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|
211 |
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212 /* Start the "out" thread that picks messages in p_tosend and send them on p_cnxctx */ |
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213 int fd_out_start(struct fd_peer * peer) |
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214 { |
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|
215 TRACE_ENTRY("%p", peer); |
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216 CHECK_PARAMS( CHECK_PEER(peer) && (peer->p_outthr == (pthread_t)NULL) ); |
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217 |
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218 CHECK_POSIX( pthread_create(&peer->p_outthr, NULL, out_thr, peer) ); |
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219 |
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220 CHECK_FCT( fd_cnx_unordered_delivery(peer->p_cnxctx, 1) ); |
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221 |
33
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222 return 0; |
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223 } |
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224 |
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225 /* Stop that thread */ |
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226 int fd_out_stop(struct fd_peer * peer) |
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227 { |
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228 TRACE_ENTRY("%p", peer); |
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229 CHECK_PARAMS( CHECK_PEER(peer) ); |
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230 |
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231 CHECK_FCT( fd_cnx_unordered_delivery(peer->p_cnxctx, 0) ); |
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232 |
33
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233 CHECK_FCT( fd_thr_term(&peer->p_outthr) ); |
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234 |
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235 return 0; |
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236 } |
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237 |