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annotate packages/net/common/current/tests/linux_echo.c @ 208:e0c0827131d1 ecos

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Merge from eCos master repository on 2002-05-20-20:11:54-BST
author jlarmour
date Mon, 20 May 2002 22:19:26 +0000
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children aa074daf1f12
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1 //==========================================================================
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2 //
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3 // tests/linux_echo.c
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4 //
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5 // Simple TCP throughput test - echo component FOR LINUX HOST
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6 // * CAUTION: host, i.e. non eCos, only *
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7 //
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8 //==========================================================================
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9 //####BSDCOPYRIGHTBEGIN####
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10 //
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11 // -------------------------------------------
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12 //
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13 // Portions of this software may have been derived from OpenBSD or other sources,
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14 // and are covered by the appropriate copyright disclaimers included herein.
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15 //
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16 // -------------------------------------------
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17 //
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18 //####BSDCOPYRIGHTEND####
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19 //==========================================================================
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20 //#####DESCRIPTIONBEGIN####
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21 //
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22 // Author(s): gthomas
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23 // Contributors: gthomas
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24 // Date: 2000-01-10
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25 // Purpose:
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26 // Description: This is the middle part of a three part test. The idea is
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27 // to test the throughput of box in a configuration like this:
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28 //
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29 // +------+ port +----+ port +----+
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30 // |SOURCE|=========>|ECHO|============>|SINK|
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31 // +------+ 9990 +----+ 9991 +----+
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32 //
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33 //
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34 //####DESCRIPTIONEND####
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35 //
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36 //==========================================================================
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37
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38 #undef _KERNEL
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39 #include <stdlib.h>
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40 #include <unistd.h>
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41 #include <stdio.h>
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42
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43 #include <sys/param.h>
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44 #include <sys/socket.h>
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45 #include <sys/ioctl.h>
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46 #include <sys/errno.h>
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47 #include <sys/time.h>
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48
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49 #include <net/if.h>
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50 #include <netinet/in.h>
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51 #include <netinet/ip.h>
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52 #include <netinet/ip_icmp.h>
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53 #include <net/route.h>
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54
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55 #include <netdb.h>
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56
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57 #define true 1
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58 #define false 1
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59
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60 #define TNR_ON()
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61 #define TNR_OFF()
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62
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63 #define diag_printf printf
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64
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65 void
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66 pexit(char *s)
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67 {
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68 perror(s);
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69 exit(1);
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70 }
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71
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72
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73 #define SOURCE_PORT 9990
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74 #define SINK_PORT 9991
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75
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76 #define MAX_BUF 8192
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77 static unsigned char data_buf[MAX_BUF];
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78
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79 struct test_params {
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80 long nbufs;
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81 long bufsize;
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82 long load;
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83 };
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84
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85 struct test_status {
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86 long ok;
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87 };
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88
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89 int max( int a, int b ) { return (a>b)?a:b; }
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90 int min( int a, int b ) { return (a<b)?a:b; }
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91
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92
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93 int
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94 do_read(int s, void *_buf, int len)
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95 {
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96 int total, slen, rlen;
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97 unsigned char *buf = (unsigned char *)_buf;
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98 total = 0;
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99 rlen = len;
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100 while (total < len) {
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101 slen = read(s, buf, rlen);
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102 if (slen != rlen) {
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103 if (slen < 0) {
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104 diag_printf("Error after reading %d bytes\n", total);
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105 return -1;
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106 }
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107 rlen -= slen;
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108 buf += slen;
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109 }
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110 total += slen;
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111 }
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112 return total;
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113 }
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114
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115 int
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116 do_write(int s, void *_buf, int len)
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117 {
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118 int total, slen, rlen;
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119 unsigned char *buf = (unsigned char *)_buf;
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120 total = 0;
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121 rlen = len;
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122 while (total < len) {
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123 slen = write(s, buf, rlen);
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124 if (slen != rlen) {
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125 if (slen < 0) {
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126 diag_printf("Error after writing %d bytes\n", total);
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127 return -1;
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128 }
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129 rlen -= slen;
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130 buf += slen;
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131 }
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132 total += slen;
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133 }
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134 return total;
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135 }
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136
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137 static void
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138 echo_test(void * p)
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139 {
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140 int s_source, s_sink, e_source, e_sink;
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141 struct sockaddr_in e_source_addr, e_sink_addr, local;
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142 int one = 1;
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143 fd_set in_fds;
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144 int i, num, len;
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145 struct test_params params,nparams;
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146 struct test_status status,nstatus;
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147
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148 s_source = socket(AF_INET, SOCK_STREAM, 0);
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149 if (s_source < 0) {
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150 pexit("stream socket");
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151 }
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152 if (setsockopt(s_source, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one))) {
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153 pexit("setsockopt /source/ SO_REUSEADDR");
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154 }
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155 memset(&local, 0, sizeof(local));
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156 local.sin_family = AF_INET;
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157 // local.sin_len = sizeof(local);
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158 local.sin_port = ntohs(SOURCE_PORT);
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159 local.sin_addr.s_addr = INADDR_ANY;
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160 if(bind(s_source, (struct sockaddr *) &local, sizeof(local)) < 0) {
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161 pexit("bind /source/ error");
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162 }
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163 listen(s_source, SOMAXCONN);
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164
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165 s_sink = socket(AF_INET, SOCK_STREAM, 0);
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166 if (s_sink < 0) {
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167 pexit("stream socket");
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168 }
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169 memset(&local, 0, sizeof(local));
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170 local.sin_family = AF_INET;
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171 // local.sin_len = sizeof(local);
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172 local.sin_port = ntohs(SINK_PORT);
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173 local.sin_addr.s_addr = INADDR_ANY;
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174 if(bind(s_sink, (struct sockaddr *) &local, sizeof(local)) < 0) {
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175 pexit("bind /sink/ error");
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176 }
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177 if (setsockopt(s_sink, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one))) {
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178 pexit("setsockopt /sink/ SO_REUSEADDR");
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179 }
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180 listen(s_sink, SOMAXCONN);
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181
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182 e_source = 0; e_sink = 0;
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183 while (true) {
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184 // Wait for a connection on either of the ports
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185 FD_ZERO(&in_fds);
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186 FD_SET(s_source, &in_fds);
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187 FD_SET(s_sink, &in_fds);
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188 num = select(max(s_sink,s_source)+1, &in_fds, 0, 0, 0);
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189 if (FD_ISSET(s_source, &in_fds)) {
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190 len = sizeof(e_source_addr);
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191 if ((e_source = accept(s_source, (struct sockaddr *)&e_source_addr, &len)) < 0) {
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192 pexit("accept /source/");
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193 }
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194 diag_printf("SOURCE connection from %s:%d\n",
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195 inet_ntoa(e_source_addr.sin_addr), ntohs(e_source_addr.sin_port));
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196 }
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197 if (FD_ISSET(s_sink, &in_fds)) {
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198 len = sizeof(e_sink_addr);
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199 if ((e_sink = accept(s_sink, (struct sockaddr *)&e_sink_addr, &len)) < 0) {
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200 pexit("accept /sink/");
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201 }
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202 diag_printf("SINK connection from %s:%d\n",
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203 inet_ntoa(e_sink_addr.sin_addr), ntohs(e_sink_addr.sin_port));
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204 }
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205 // Continue with test once a connection is established in both directions
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206 if ((e_source != 0) && (e_sink != 0)) {
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207 break;
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208 }
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209 }
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210
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211 // Wait for "source" to tell us the testing paramters
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212 if (do_read(e_source, &nparams, sizeof(nparams)) != sizeof(nparams)) {
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213 pexit("Can't read initialization parameters");
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214 }
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215
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216 params.nbufs = ntohl(nparams.nbufs);
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217 params.bufsize = ntohl(nparams.bufsize);
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218 params.load = ntohl(nparams.load);
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219
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220 diag_printf("Using %d buffers of %d bytes each, %d%% background load\n",
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221 params.nbufs, params.bufsize, params.load);
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222
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223 // Tell the sink what the parameters are
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224 if (do_write(e_sink, &nparams, sizeof(nparams)) != sizeof(nparams)) {
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225 pexit("Can't write initialization parameters");
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226 }
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227
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228 status.ok = 1;
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229 nstatus.ok = htonl(status.ok);
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230
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231 // Tell the "source" to start - we're all connected and ready to go!
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232 if (do_write(e_source, &nstatus, sizeof(nstatus)) != sizeof(nstatus)) {
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233 pexit("Can't send ACK to 'source' host");
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234 }
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235
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236 TNR_ON();
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237
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238 // Echo the data from the source to the sink hosts
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239 for (i = 0; i < params.nbufs; i++) {
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240 if ((len = do_read(e_source, data_buf, params.bufsize)) != params.bufsize) {
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241 TNR_OFF();
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242 diag_printf("Can't read buf #%d: ", i+1);
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243 if (len < 0) {
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244 perror("I/O error");
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245 } else {
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246 diag_printf("short read - only %d bytes\n", len);
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247 }
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248 TNR_ON();
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249 }
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250 if ((len = do_write(e_sink, data_buf, params.bufsize)) != params.bufsize) {
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251 TNR_OFF();
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252 diag_printf("Can't write buf #%d: ", i+1);
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253 if (len < 0) {
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254 perror("I/O error");
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255 } else {
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256 diag_printf("short write - only %d bytes\n", len);
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257 }
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258 TNR_ON();
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259 }
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260 }
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diff changeset
261
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262 TNR_OFF();
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263
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264 // Wait for the data to drain and the "sink" to tell us all is OK.
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265 if (do_read(e_sink, &status, sizeof(status)) != sizeof(status)) {
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266 pexit("Can't receive ACK from 'sink' host");
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267 }
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268
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269 }
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diff changeset
270
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271
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272 int
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273 main(int argc, char *argv[])
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274 {
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275 echo_test(argv[1]);
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276 return 0;
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277 }
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278
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279
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280 // EOF
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281