8 * Web server script interface
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10 * Adam Dunkels <adam@sics.se>
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15 * Copyright (c) 2001-2006, Adam Dunkels.
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16 * All rights reserved.
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18 * Redistribution and use in source and binary forms, with or without
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19 * modification, are permitted provided that the following conditions
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21 * 1. Redistributions of source code must retain the above copyright
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22 * notice, this list of conditions and the following disclaimer.
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23 * 2. Redistributions in binary form must reproduce the above copyright
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24 * notice, this list of conditions and the following disclaimer in the
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25 * documentation and/or other materials provided with the distribution.
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26 * 3. The name of the author may not be used to endorse or promote
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27 * products derived from this software without specific prior
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28 * written permission.
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30 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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31 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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32 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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33 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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34 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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35 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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36 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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37 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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38 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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39 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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40 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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42 * This file is part of the uIP TCP/IP stack.
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44 * $Id: httpd-cgi.c,v 1.2 2006/06/11 21:46:37 adam Exp $
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47 #include "net/uip.h"
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48 #include "net/psock.h"
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49 #include "apps/httpd/httpd.h"
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50 #include "apps/httpd/httpd-cgi.h"
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51 #include "apps/httpd/httpd-fs.h"
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56 #include "FreeRTOS.h"
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59 HTTPD_CGI_CALL( file, "file-stats", file_stats );
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60 HTTPD_CGI_CALL( tcp, "tcp-connections", tcp_stats );
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61 HTTPD_CGI_CALL( net, "net-stats", net_stats );
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62 HTTPD_CGI_CALL( rtos, "rtos-stats", rtos_stats );
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63 HTTPD_CGI_CALL( run, "run-time", run_time );
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64 HTTPD_CGI_CALL( io, "led-io", led_io );
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66 static const struct httpd_cgi_call *calls[] = { &file, &tcp, &net, &rtos, &run, &io, NULL };
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68 /*---------------------------------------------------------------------------*/
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69 static PT_THREAD( nullfunction ( struct httpd_state *s, char *ptr ) )
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71 PSOCK_BEGIN( &s->sout );
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73 ( void ) PT_YIELD_FLAG;
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74 PSOCK_END( &s->sout );
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77 /*---------------------------------------------------------------------------*/
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78 httpd_cgifunction httpd_cgi( char *name )
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80 const struct httpd_cgi_call **f;
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82 /* Find the matching name in the table, return the function. */
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83 for( f = calls; *f != NULL; ++f )
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85 if( strncmp((*f)->name, name, strlen((*f)->name)) == 0 )
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87 return( *f )->function;
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91 return nullfunction;
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94 /*---------------------------------------------------------------------------*/
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95 static unsigned short generate_file_stats( void *arg )
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97 char *f = ( char * ) arg;
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98 return sprintf( ( char * ) uip_appdata, "%5u", httpd_fs_count(f) );
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101 /*---------------------------------------------------------------------------*/
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102 static PT_THREAD( file_stats ( struct httpd_state *s, char *ptr ) )
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104 PSOCK_BEGIN( &s->sout );
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106 ( void ) PT_YIELD_FLAG;
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108 PSOCK_GENERATOR_SEND( &s->sout, generate_file_stats, strchr(ptr, ' ') + 1 );
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110 PSOCK_END( &s->sout );
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113 /*---------------------------------------------------------------------------*/
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114 static const char closed[] = /* "CLOSED",*/ { 0x43, 0x4c, 0x4f, 0x53, 0x45, 0x44, 0 };
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115 static const char syn_rcvd[] = /* "SYN-RCVD",*/ { 0x53, 0x59, 0x4e, 0x2d, 0x52, 0x43, 0x56, 0x44, 0 };
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116 static const char syn_sent[] = /* "SYN-SENT",*/ { 0x53, 0x59, 0x4e, 0x2d, 0x53, 0x45, 0x4e, 0x54, 0 };
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117 static const char established[] = /* "ESTABLISHED",*/ { 0x45, 0x53, 0x54, 0x41, 0x42, 0x4c, 0x49, 0x53, 0x48, 0x45, 0x44, 0 };
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118 static const char fin_wait_1[] = /* "FIN-WAIT-1",*/ { 0x46, 0x49, 0x4e, 0x2d, 0x57, 0x41, 0x49, 0x54, 0x2d, 0x31, 0 };
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119 static const char fin_wait_2[] = /* "FIN-WAIT-2",*/ { 0x46, 0x49, 0x4e, 0x2d, 0x57, 0x41, 0x49, 0x54, 0x2d, 0x32, 0 };
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120 static const char closing[] = /* "CLOSING",*/ { 0x43, 0x4c, 0x4f, 0x53, 0x49, 0x4e, 0x47, 0 };
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121 static const char time_wait[] = /* "TIME-WAIT,"*/ { 0x54, 0x49, 0x4d, 0x45, 0x2d, 0x57, 0x41, 0x49, 0x54, 0 };
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122 static const char last_ack[] = /* "LAST-ACK"*/ { 0x4c, 0x41, 0x53, 0x54, 0x2d, 0x41, 0x43, 0x4b, 0 };
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124 static const char *states[] = { closed, syn_rcvd, syn_sent, established, fin_wait_1, fin_wait_2, closing, time_wait, last_ack };
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126 static unsigned short generate_tcp_stats( void *arg )
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128 struct uip_conn *conn;
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129 struct httpd_state *s = ( struct httpd_state * ) arg;
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131 conn = &uip_conns[s->count];
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132 return sprintf( ( char * ) uip_appdata,
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133 "<tr><td>%d</td><td>%u.%u.%u.%u:%u</td><td>%s</td><td>%u</td><td>%u</td><td>%c %c</td></tr>\r\n", htons(conn->lport),
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134 htons(conn->ripaddr.u16[0]) >> 8, htons(conn->ripaddr.u16[0]) & 0xff, htons(conn->ripaddr.u16[1]) >> 8,
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135 htons(conn->ripaddr.u16[1]) & 0xff, htons(conn->rport), states[conn->tcpstateflags & UIP_TS_MASK], conn->nrtx, conn->timer,
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136 (uip_outstanding(conn)) ? '*' : ' ', (uip_stopped(conn)) ? '!' : ' ' );
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139 /*---------------------------------------------------------------------------*/
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140 static PT_THREAD( tcp_stats ( struct httpd_state *s, char *ptr ) )
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142 PSOCK_BEGIN( &s->sout );
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144 ( void ) PT_YIELD_FLAG;
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145 for( s->count = 0; s->count < UIP_CONNS; ++s->count )
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147 if( (uip_conns[s->count].tcpstateflags & UIP_TS_MASK) != UIP_CLOSED )
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149 PSOCK_GENERATOR_SEND( &s->sout, generate_tcp_stats, s );
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153 PSOCK_END( &s->sout );
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156 /*---------------------------------------------------------------------------*/
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157 static unsigned short generate_net_stats( void *arg )
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159 struct httpd_state *s = ( struct httpd_state * ) arg;
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160 return sprintf( ( char * ) uip_appdata, "%5u\n", (( uip_stats_t * ) &uip_stat)[s->count] );
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163 static PT_THREAD( net_stats ( struct httpd_state *s, char *ptr ) )
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165 PSOCK_BEGIN( &s->sout );
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167 ( void ) PT_YIELD_FLAG;
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169 for( s->count = 0; s->count < sizeof(uip_stat) / sizeof(uip_stats_t); ++s->count )
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171 PSOCK_GENERATOR_SEND( &s->sout, generate_net_stats, s );
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174 #endif /* UIP_STATISTICS */
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176 PSOCK_END( &s->sout );
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179 /*---------------------------------------------------------------------------*/
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180 extern void vTaskList( char *pcWriteBuffer );
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181 extern char *pcGetTaskStatusMessage( void );
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182 static char cCountBuf[128];
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183 long lRefreshCount = 0;
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184 static unsigned short generate_rtos_stats( void *arg )
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188 sprintf( cCountBuf, "<p><br>Refresh count = %d<p><br>%s", ( int ) lRefreshCount, pcGetTaskStatusMessage() );
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189 vTaskList( ( char * ) uip_appdata );
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190 strcat( uip_appdata, cCountBuf );
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192 return strlen( uip_appdata );
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195 /*---------------------------------------------------------------------------*/
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196 static PT_THREAD( rtos_stats ( struct httpd_state *s, char *ptr ) )
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198 PSOCK_BEGIN( &s->sout );
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200 ( void ) PT_YIELD_FLAG;
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201 PSOCK_GENERATOR_SEND( &s->sout, generate_rtos_stats, NULL );
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202 PSOCK_END( &s->sout );
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205 /*---------------------------------------------------------------------------*/
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207 unsigned long ulString;
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209 static unsigned short generate_io_state( void *arg )
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211 extern long lParTestGetLEDState( unsigned long ulLED );
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214 /* Are the dynamically setable LEDs currently on or off? */
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215 if( lParTestGetLEDState( 8 ) )
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217 pcStatus = "checked";
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224 sprintf( uip_appdata, "<input type=\"checkbox\" name=\"LED0\" value=\"1\" %s>LED<p><p>", pcStatus );
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226 return strlen( uip_appdata );
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229 /*---------------------------------------------------------------------------*/
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230 extern void vTaskGetRunTimeStats( char *pcWriteBuffer );
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231 extern unsigned short usMaxJitter;
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232 static char cJitterBuffer[ 200 ];
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233 static unsigned short generate_runtime_stats( void *arg )
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237 sprintf( cCountBuf, "<p><br>Refresh count = %d", ( int ) lRefreshCount );
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239 #ifdef INCLUDE_HIGH_FREQUENCY_TIMER_TEST
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241 sprintf( cJitterBuffer, "<p><br>Max high frequency timer jitter = %d peripheral clock periods.<p><br>", ( int ) usMaxJitter );
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242 vTaskGetRunTimeStats( ( char * ) uip_appdata );
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243 strcat( uip_appdata, cJitterBuffer );
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247 ( void ) cJitterBuffer;
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248 strcpy( uip_appdata, "<p>Run time stats are only available in the debug_with_optimisation build configuration.<p>" );
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252 strcat( uip_appdata, cCountBuf );
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254 return strlen( uip_appdata );
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257 /*---------------------------------------------------------------------------*/
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258 static PT_THREAD( run_time ( struct httpd_state *s, char *ptr ) )
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260 PSOCK_BEGIN( &s->sout );
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262 ( void ) PT_YIELD_FLAG;
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263 PSOCK_GENERATOR_SEND( &s->sout, generate_runtime_stats, NULL );
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264 PSOCK_END( &s->sout );
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267 /*---------------------------------------------------------------------------*/
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268 static PT_THREAD( led_io ( struct httpd_state *s, char *ptr ) )
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270 PSOCK_BEGIN( &s->sout );
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272 ( void ) PT_YIELD_FLAG;
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273 PSOCK_GENERATOR_SEND( &s->sout, generate_io_state, NULL );
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274 PSOCK_END( &s->sout );
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