1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // |
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27 | // $Id: FRClient.cc,v 1.7 2006/06/29 21:25:49 gunter Exp $ |
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28 | // GEANT4 tag $Name: $ |
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29 | // |
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30 | // FRClient.cc |
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31 | // FukuiRenderer Client |
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32 | // Yasuhide Sawada & Satoshi Tanaka |
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33 | |
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34 | |
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35 | //=================// |
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36 | #ifndef WIN32 |
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37 | //=================// |
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38 | |
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39 | |
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40 | //=================// |
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41 | #ifdef G4VIS_BUILD_VRML_DRIVER |
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42 | //=================// |
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43 | |
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44 | |
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45 | #include "G4ios.hh" |
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46 | #include <sys/time.h> |
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47 | #include <sys/types.h> |
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48 | #include <sys/socket.h> |
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49 | #include <netinet/in.h> |
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50 | #include <arpa/inet.h> |
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51 | #include <netdb.h> |
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52 | #include <fcntl.h> |
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53 | |
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54 | #include <unistd.h> |
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55 | #include <string.h> |
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56 | #include <stdio.h> |
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57 | |
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58 | #include "FRClient.h" |
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59 | |
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60 | FRClient::FRClient() |
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61 | { |
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62 | fd = -1; |
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63 | create(); |
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64 | } |
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65 | |
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66 | FRClient::~FRClient() |
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67 | { |
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68 | close(); |
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69 | } |
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70 | |
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71 | int FRClient::create() |
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72 | { |
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73 | /* stream socket */ |
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74 | fd = socket(AF_INET, SOCK_STREAM, 0); |
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75 | if (fd < 0) |
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76 | fputs("error: socket.\n", stderr); |
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77 | return fd; |
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78 | } |
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79 | |
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80 | |
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81 | |
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82 | int FRClient::connect(const char *hostname, int port_) |
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83 | { |
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84 | // local variables |
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85 | struct sockaddr_in sa; |
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86 | struct hostent *hp; |
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87 | |
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88 | // set port ( sa.sin_family, sa.sin_port ) |
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89 | port = port_; // Store port number to data member |
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90 | memset( (char *)&sa, '\0', sizeof(sa)) ; |
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91 | sa.sin_family = AF_INET; |
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92 | sa.sin_port = htons(port); |
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93 | |
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94 | // set server host ( sa.sin_addr ) |
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95 | if (hostname == NULL) { |
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96 | hostname = "localhost"; |
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97 | // reset arg |
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98 | } |
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99 | hp = gethostbyname(hostname) ; |
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100 | if ( !hp ) { |
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101 | G4cerr << "ERROR: gethostbyname() failed" << G4endl; |
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102 | return -1; |
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103 | } |
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104 | |
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105 | memcpy( (char * )&sa.sin_addr, (char * )hp->h_addr, hp->h_length ); |
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106 | |
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107 | // make connection to server |
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108 | if (::connect(fd, (struct sockaddr *)&sa, sizeof(sa)) == -1) { |
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109 | fputs("error: connect\n", stderr); |
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110 | return -1; |
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111 | } |
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112 | |
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113 | // return file descripter (data member) |
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114 | return fd; |
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115 | } |
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116 | |
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117 | |
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118 | |
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119 | int FRClient::send(const char *sendbuf) |
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120 | { |
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121 | int len = strlen(sendbuf); |
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122 | |
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123 | if (::send(fd, sendbuf, len, 0) < 0) { |
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124 | fputs("error: Send()\n", stderr); |
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125 | len = -1; |
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126 | } |
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127 | return len; |
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128 | } |
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129 | |
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130 | int FRClient::receive(char *recvbuf) |
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131 | { |
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132 | int len; |
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133 | |
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134 | memset(recvbuf, '\0', FRSendLength + 1); |
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135 | len = ::recv(fd, recvbuf, FRSendLength, 0); |
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136 | if(len < 0) { |
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137 | fputs("error: Receive()\n", stderr); |
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138 | len = -1; |
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139 | } |
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140 | return len; |
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141 | } |
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142 | |
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143 | int FRClient::close() |
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144 | { |
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145 | /* |
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146 | shutdown :argument '2' means shutdown both send and receive. |
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147 | */ |
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148 | if (::shutdown(fd, 2) < 0) { |
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149 | fputs("error: shutdown\n", stderr); |
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150 | return -1; |
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151 | } |
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152 | ::close(fd); |
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153 | return 0; |
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154 | } |
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155 | |
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156 | #endif //G4VIS_BUILD_VRML_DRIVER |
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157 | |
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158 | #endif // WIN32 |
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