1 | //clients.c: |
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2 | |
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3 | #include "roard.h" |
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4 | |
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5 | int clients_init (void) { |
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6 | int i; |
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7 | |
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8 | for (i = 0; i < ROAR_CLIENTS_MAX; i++) |
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9 | g_clients[i] = NULL; |
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10 | |
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11 | return 0; |
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12 | } |
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13 | |
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14 | int clients_free (void) { |
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15 | int i; |
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16 | |
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17 | for (i = 0; i < ROAR_CLIENTS_MAX; i++) |
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18 | if ( g_clients[i] ) |
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19 | clients_delete(i); |
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20 | |
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21 | return 0; |
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22 | } |
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23 | |
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24 | int clients_new (void) { |
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25 | int i; |
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26 | int s; |
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27 | struct roar_client * n; |
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28 | |
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29 | for (i = 0; i < ROAR_CLIENTS_MAX; i++) { |
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30 | if ( g_clients[i] == NULL ) { |
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31 | n = malloc(sizeof(struct roar_client)); |
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32 | if ( n != NULL ) { |
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33 | n->pid = -1; |
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34 | n->fh = -1; |
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35 | |
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36 | *n->name = 0; |
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37 | *n->host = 0; |
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38 | |
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39 | n->execed = -1; |
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40 | for (s = 0; s < ROAR_CLIENTS_MAX_STREAMS_PER_CLIENT; s++) |
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41 | n->streams[s] = -1; |
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42 | |
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43 | g_clients[i] = n; |
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44 | |
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45 | ROAR_DBG("clients_new(void) = %i", i); |
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46 | return i; |
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47 | } else { |
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48 | ROAR_ERR("clients_new(void): Can not alloc memory for new client: %s", strerror(errno)); |
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49 | ROAR_ERR("clients_new(void) = -1"); |
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50 | return -1; |
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51 | } |
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52 | } |
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53 | } |
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54 | |
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55 | return -1; |
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56 | } |
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57 | |
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58 | int clients_delete (int id) { |
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59 | int i; |
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60 | |
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61 | if ( g_clients[id] == NULL ) |
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62 | return -1; |
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63 | |
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64 | if (g_clients[id]->execed != -1) { |
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65 | // return streams_delete(g_clients[id]->execed); |
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66 | g_clients[id]->execed = -1; |
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67 | } |
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68 | |
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69 | for (i = 0; i < ROAR_CLIENTS_MAX_STREAMS_PER_CLIENT; i++) { |
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70 | streams_delete(g_clients[id]->streams[i]); |
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71 | } |
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72 | |
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73 | if ( g_clients[id]->fh != -1 ) |
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74 | close(g_clients[id]->fh); |
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75 | |
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76 | free(g_clients[id]); |
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77 | g_clients[id] = NULL; |
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78 | |
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79 | ROAR_DBG("clients_delete(id=%i) = 0", id); |
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80 | return 0; |
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81 | } |
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82 | |
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83 | int clients_get (int id, struct roar_client ** client) { |
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84 | *client = g_clients[id]; |
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85 | |
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86 | if ( *client == NULL ) |
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87 | return -1; |
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88 | |
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89 | return 0; |
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90 | } |
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91 | |
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92 | int clients_set_fh (int id, int fh) { |
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93 | if ( g_clients[id] == NULL ) |
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94 | return -1; |
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95 | |
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96 | g_clients[id]->fh = fh; |
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97 | |
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98 | return 0; |
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99 | } |
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100 | |
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101 | int clients_set_pid (int id, int pid) { |
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102 | if ( g_clients[id] == NULL ) |
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103 | return -1; |
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104 | |
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105 | g_clients[id]->pid = pid; |
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106 | |
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107 | return 0; |
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108 | } |
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109 | |
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110 | int clients_check_all (void) { |
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111 | struct timeval tv; |
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112 | fd_set r, e; |
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113 | int i, j; |
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114 | int ret; |
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115 | int fh; |
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116 | int max_fh = -1; |
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117 | int have = 0; |
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118 | |
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119 | FD_ZERO(&r); |
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120 | FD_ZERO(&e); |
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121 | |
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122 | tv.tv_sec = 0; |
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123 | tv.tv_usec = 1; |
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124 | |
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125 | for (i = 0; i < ROAR_CLIENTS_MAX; i++) { |
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126 | if ( g_clients[i] == NULL ) |
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127 | continue; |
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128 | |
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129 | if ( (fh = g_clients[i]->fh) != -1 ) { |
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130 | have++; |
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131 | |
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132 | FD_SET(fh, &r); |
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133 | FD_SET(fh, &e); |
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134 | |
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135 | if ( fh > max_fh ) |
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136 | max_fh = fh; |
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137 | } |
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138 | |
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139 | for (j = 0; j < ROAR_CLIENTS_MAX_STREAMS_PER_CLIENT; j++) { |
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140 | if ( (fh = streams_get_fh(g_clients[i]->streams[j])) != -1 ) { |
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141 | FD_SET(fh, &r); |
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142 | |
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143 | if ( fh > max_fh ) |
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144 | max_fh = fh; |
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145 | } |
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146 | //printf("D: client=%i, stream=%i, fh=%i\n", i, j, fh); |
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147 | } |
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148 | |
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149 | } |
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150 | |
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151 | if ( (ret = select(max_fh + 1, &r, NULL, &e, &tv)) < 1 ) { |
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152 | return ret < 0 ? ret : have; |
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153 | } |
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154 | |
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155 | for (i = 0; i < ROAR_CLIENTS_MAX; i++) { |
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156 | if ( g_clients[i] == NULL ) |
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157 | continue; |
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158 | |
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159 | if ( (fh = g_clients[i]->fh) != -1 ) { |
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160 | if ( FD_ISSET(fh, &r) ) { |
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161 | if ( g_clients[i]->execed == -1 ) { |
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162 | clients_check(i); |
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163 | } else { |
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164 | streams_check(g_clients[i]->execed); |
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165 | } |
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166 | } |
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167 | |
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168 | if ( FD_ISSET(fh, &e) ) { |
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169 | clients_delete(i); |
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170 | continue; |
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171 | } |
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172 | } |
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173 | |
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174 | if ( g_clients[i] == NULL ) |
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175 | continue; |
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176 | |
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177 | for (j = 0; j < ROAR_CLIENTS_MAX_STREAMS_PER_CLIENT; j++) { |
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178 | //printf("D: client=%i, stream=%i, g_clients[i=%i] = %p\n", i, j, i, g_clients[i]); |
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179 | if ( g_clients[i] == NULL ) // streams_check() bellow can delete our client (why?) |
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180 | break; |
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181 | if ( (fh = streams_get_fh(g_clients[i]->streams[j])) != -1 ) { |
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182 | if ( FD_ISSET(fh, &r) ) { |
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183 | streams_check(g_clients[i]->streams[j]); |
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184 | } |
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185 | } |
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186 | } |
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187 | } |
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188 | |
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189 | ROAR_DBG("clients_check_all(void) = %i // have value", have); |
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190 | return have; |
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191 | } |
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192 | |
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193 | int clients_check (int id) { |
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194 | struct roar_message m; |
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195 | struct roar_connection con; |
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196 | char * data = NULL; |
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197 | int oldcmd; |
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198 | int r; |
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199 | |
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200 | if ( g_clients[id] == NULL ) |
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201 | return -1; |
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202 | if ( g_clients[id]->fh == -1 ) |
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203 | return -1; |
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204 | |
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205 | con.fh = g_clients[id]->fh; |
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206 | |
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207 | r = roar_recv_message(&con, &m, &data); |
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208 | |
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209 | if ( r == -1 ) { // should we drop the client? |
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210 | clients_delete(id); |
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211 | return -1; |
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212 | } |
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213 | |
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214 | roar_debug_message_print(&m); |
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215 | |
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216 | oldcmd = m.cmd; |
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217 | |
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218 | if ( (r = command_exec(id, &m, data)) == -1 ) { |
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219 | m.cmd = ROAR_CMD_ERROR; |
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220 | m.datalen = 0; |
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221 | ROAR_DBG("clients_check(*): Exec of command faild!"); |
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222 | } else { |
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223 | if ( m.cmd == oldcmd ) { |
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224 | m.cmd = ROAR_CMD_OK; |
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225 | m.datalen = 0; |
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226 | } |
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227 | } |
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228 | |
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229 | roar_send_message(&con, &m, NULL); |
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230 | |
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231 | if ( data ) |
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232 | free(data); |
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233 | |
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234 | ROAR_DBG("clients_check(id=%i) = 0", id); |
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235 | return 0; |
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236 | } |
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237 | |
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238 | int clients_send_mon (struct roar_audio_info * sa, uint32_t pos) { |
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239 | int i; |
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240 | int fh; |
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241 | |
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242 | for (i = 0; i < ROAR_CLIENTS_MAX; i++) { |
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243 | if ( g_clients[i] == NULL ) |
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244 | continue; |
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245 | |
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246 | if ( (fh = g_clients[i]->fh) == -1 ) |
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247 | continue; |
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248 | |
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249 | if ( g_clients[i]->execed == -1 ) { |
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250 | // TODO: add some code to send a message to the client insetd of the raw data. |
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251 | } else { |
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252 | // streams_check(g_clients[i]->execed); |
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253 | streams_send_mon(g_clients[i]->execed); |
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254 | // if ( streams_send_mon(g_clients[i]->execed) == -1 ) |
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255 | // clients_delete(i); // delete client in case we could not write |
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256 | } |
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257 | } |
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258 | |
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259 | return -1; |
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260 | } |
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261 | |
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262 | int clients_send_filter(struct roar_audio_info * sa, uint32_t pos) { |
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263 | int i; |
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264 | int fh; |
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265 | |
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266 | for (i = 0; i < ROAR_CLIENTS_MAX; i++) { |
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267 | if ( g_clients[i] == NULL ) |
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268 | continue; |
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269 | |
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270 | if ( (fh = g_clients[i]->fh) == -1 ) |
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271 | continue; |
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272 | |
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273 | if ( g_clients[i]->execed == -1 ) { |
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274 | // TODO: add some code to send a message to the client insetd of the raw data. |
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275 | } else { |
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276 | // streams_check(g_clients[i]->execed); |
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277 | streams_send_filter(g_clients[i]->execed); |
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278 | // if ( streams_send_mon(g_clients[i]->execed) == -1 ) |
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279 | // clients_delete(i); // delete client in case we could not write |
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280 | } |
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281 | } |
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282 | |
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283 | return -1; |
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284 | } |
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285 | |
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286 | int client_stream_exec (int client, int stream) { |
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287 | int i; |
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288 | |
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289 | if ( g_clients[client] == NULL ) |
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290 | return -1; |
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291 | |
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292 | for (i = 0; i < ROAR_CLIENTS_MAX_STREAMS_PER_CLIENT; i++) { |
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293 | if ( g_clients[client]->streams[i] == stream ) { |
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294 | g_clients[client]->execed = stream; |
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295 | streams_set_fh(stream, g_clients[client]->fh); |
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296 | return 0; |
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297 | } |
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298 | } |
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299 | |
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300 | return -1; |
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301 | } |
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302 | |
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303 | int client_stream_set_fh (int client, int stream, int fh) { |
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304 | int i; |
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305 | |
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306 | if ( g_clients[client] == NULL ) |
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307 | return -1; |
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308 | |
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309 | for (i = 0; i < ROAR_CLIENTS_MAX_STREAMS_PER_CLIENT; i++) { |
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310 | if ( g_clients[client]->streams[i] == stream ) { |
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311 | streams_set_fh(stream, fh); |
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312 | return 0; |
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313 | } |
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314 | } |
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315 | |
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316 | return -1; |
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317 | } |
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318 | |
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319 | int client_stream_add (int client, int stream) { |
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320 | int i; |
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321 | |
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322 | if ( g_clients[client] == NULL ) |
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323 | return -1; |
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324 | |
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325 | for (i = 0; i < ROAR_CLIENTS_MAX_STREAMS_PER_CLIENT; i++) { |
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326 | if ( g_clients[client]->streams[i] == -1 ) { |
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327 | g_clients[client]->streams[i] = stream; |
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328 | streams_set_client(stream, client); |
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329 | return 0; |
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330 | } |
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331 | } |
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332 | |
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333 | return -1; |
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334 | } |
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335 | |
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336 | int client_stream_delete (int client, int stream) { |
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337 | int i; |
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338 | |
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339 | if ( g_clients[client] == NULL ) |
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340 | return -1; |
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341 | |
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342 | for (i = 0; i < ROAR_CLIENTS_MAX_STREAMS_PER_CLIENT; i++) { |
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343 | if ( g_clients[client]->streams[i] == stream ) { |
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344 | g_clients[client]->streams[i] = -1; |
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345 | |
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346 | if ( stream == g_clients[client]->execed ) { |
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347 | ROAR_DBG("client_stream_delete(client=%i, stream=%i): stream is execed one, deleting client!", client, stream); |
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348 | clients_delete(client); |
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349 | } |
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350 | |
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351 | ROAR_DBG("client_stream_delete(client=%i, stream=%i) = 0", client, stream); |
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352 | return 0; |
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353 | } |
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354 | } |
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355 | |
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356 | ROAR_DBG("client_stream_delete(client=%i, stream=%i) = -1", client, stream); |
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357 | return -1; |
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358 | } |
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359 | |
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360 | //ll |
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