1 #include "ipc.h" |
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2 #include "ipc/ipcconn.h" |
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3 #include "logging.h" |
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4 |
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5 #include <stdbool.h> |
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6 #include <stdlib.h> |
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7 |
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8 typedef struct _flib_ipc { |
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9 flib_ipcconn connection; |
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10 IpcConnState oldConnState; |
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11 |
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12 void (*onConnectCb)(void*); |
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13 void *onConnectCtx; |
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14 |
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15 void (*onDisconnectCb)(void*); |
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16 void *onDisconnectCtx; |
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17 |
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18 void (*onConfigQueryCb)(void*); |
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19 void *onConfigQueryCtx; |
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20 |
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21 void (*onEngineErrorCb)(void*, const uint8_t*); |
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22 void *onEngineErrorCtx; |
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23 |
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24 void (*onGameEndCb)(void*, int); |
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25 void *onGameEndCtx; |
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26 |
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27 void (*onChatCb)(void*, const uint8_t*, int); |
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28 void *onChatCtx; |
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29 |
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30 void (*onEngineMessageCb)(void*, const uint8_t*, int); |
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31 void *onEngineMessageCtx; |
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32 |
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33 bool running; |
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34 bool destroyRequested; |
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35 } _flib_ipc; |
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36 |
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37 static void emptyCallback(void* ptr) {} |
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38 static void emptyCallback_int(void* ptr, int i) {} |
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39 static void emptyCallback_str(void* ptr, const uint8_t* str) {} |
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40 static void emptyCallback_str_int(void* ptr, const uint8_t* str, int i) {} |
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41 |
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42 static void clearCallbacks(flib_ipc ipc) { |
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43 ipc->onConnectCb = &emptyCallback; |
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44 ipc->onDisconnectCb = &emptyCallback; |
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45 ipc->onConfigQueryCb = &emptyCallback; |
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46 ipc->onEngineErrorCb = &emptyCallback_str; |
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47 ipc->onGameEndCb = &emptyCallback_int; |
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48 ipc->onChatCb = &emptyCallback_str_int; |
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49 ipc->onEngineMessageCb = &emptyCallback_str_int; |
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50 } |
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51 |
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52 flib_ipc flib_ipc_create(bool recordDemo, const char *localPlayerName) { |
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53 flib_ipc result = malloc(sizeof(_flib_ipc)); |
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54 flib_ipcconn connection = flib_ipcconn_create(recordDemo, localPlayerName); |
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55 |
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56 if(!result || !connection) { |
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57 free(result); |
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58 flib_ipcconn_destroy(&connection); |
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59 return NULL; |
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60 } |
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61 |
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62 result->connection = connection; |
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63 result->oldConnState = IPC_LISTENING; |
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64 result->running = false; |
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65 result->destroyRequested = false; |
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66 |
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67 clearCallbacks(result); |
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68 return result; |
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69 } |
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70 |
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71 void flib_ipc_destroy(flib_ipc *ipcptr) { |
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72 if(!ipcptr || !*ipcptr) { |
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73 return; |
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74 } |
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75 flib_ipc ipc = *ipcptr; |
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76 if(ipc->running) { |
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77 // The function was called from a callback of this ipc connection, |
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78 // so the tick function is still running and we delay the actual |
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79 // destruction. We ensure no further callbacks will be sent to prevent |
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80 // surprises. |
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81 clearCallbacks(ipc); |
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82 ipc->destroyRequested = true; |
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83 } else { |
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84 flib_ipcconn_destroy(&ipc->connection); |
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85 free(ipc); |
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86 } |
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87 *ipcptr = NULL; |
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88 } |
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89 |
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90 void flib_ipc_onConnect(flib_ipc ipc, void (*callback)(void* context), void* context) { |
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91 if(!ipc) { |
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92 flib_log_w("Call to flib_ipc_onConnect with ipc==null"); |
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93 return; |
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94 } |
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95 ipc->onConnectCb = callback ? callback : &emptyCallback; |
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96 ipc->onConnectCtx = context; |
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97 } |
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98 |
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99 void flib_ipc_onDisconnect(flib_ipc ipc, void (*callback)(void* context), void* context) { |
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100 if(!ipc) { |
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101 flib_log_w("Call to flib_ipc_onDisconnect with ipc==null"); |
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102 return; |
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103 } |
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104 ipc->onDisconnectCb = callback ? callback : &emptyCallback; |
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105 ipc->onDisconnectCtx = context; |
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106 } |
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107 |
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108 void flib_ipc_onConfigQuery(flib_ipc ipc, void (*callback)(void* context), void* context) { |
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109 if(!ipc) { |
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110 flib_log_w("Call to flib_ipc_onConfigQuery with ipc==null"); |
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111 return; |
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112 } |
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113 ipc->onConfigQueryCb = callback ? callback : &emptyCallback; |
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114 ipc->onConfigQueryCtx = context; |
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115 } |
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116 |
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117 void flib_ipc_onEngineError(flib_ipc ipc, void (*callback)(void* context, const uint8_t *error), void* context) { |
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118 if(!ipc) { |
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119 flib_log_w("Call to flib_ipc_onEngineError with ipc==null"); |
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120 return; |
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121 } |
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122 ipc->onEngineErrorCb = callback ? callback : &emptyCallback_str; |
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123 ipc->onEngineErrorCtx = context; |
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124 } |
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125 |
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126 void flib_ipc_onGameEnd(flib_ipc ipc, void (*callback)(void* context, int gameEndType), void* context) { |
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127 if(!ipc) { |
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128 flib_log_w("Call to flib_ipc_onGameEnd with ipc==null"); |
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129 return; |
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130 } |
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131 ipc->onGameEndCb = callback ? callback : &emptyCallback_int; |
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132 ipc->onGameEndCtx = context; |
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133 } |
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134 |
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135 void flib_ipc_onChat(flib_ipc ipc, void (*callback)(void* context, const uint8_t *messagestr, int teamchat), void* context) { |
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136 if(!ipc) { |
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137 flib_log_w("Call to flib_ipc_onChat with ipc==null"); |
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138 return; |
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139 } |
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140 ipc->onChatCb = callback ? callback : &emptyCallback_str_int; |
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141 ipc->onChatCtx = context; |
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142 } |
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143 |
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144 void flib_ipc_onEngineMessage(flib_ipc ipc, void (*callback)(void* context, const uint8_t *message, int len), void* context) { |
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145 if(!ipc) { |
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146 flib_log_w("Call to flib_ipc_onEngineMessage with ipc==null"); |
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147 return; |
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148 } |
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149 ipc->onEngineMessageCb = callback ? callback : &emptyCallback_str_int; |
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150 ipc->onEngineMessageCtx = context; |
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151 } |
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152 |
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153 static void flib_ipc_wrappedtick(flib_ipc ipc) { |
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154 if(ipc->oldConnState == IPC_NOT_CONNECTED) { |
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155 return; |
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156 } |
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157 |
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158 if(ipc->oldConnState == IPC_LISTENING) { |
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159 flib_ipcconn_accept(ipc->connection); |
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160 if(flib_ipcconn_state(ipc->connection) == IPC_CONNECTED) { |
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161 ipc->oldConnState = IPC_CONNECTED; |
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162 ipc->onConnectCb(ipc->onConnectCtx); |
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163 } |
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164 } |
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165 |
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166 if(ipc->oldConnState == IPC_CONNECTED) { |
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167 uint8_t msgbuffer[257]; |
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168 int len; |
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169 while(!ipc->destroyRequested && (len = flib_ipcconn_recv_message(ipc->connection, msgbuffer))>=0) { |
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170 if(len<2) { |
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171 flib_log_w("Received short message from IPC (<2 bytes)"); |
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172 continue; |
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173 } |
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174 msgbuffer[len] = 0; |
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175 flib_log_i("[IPC in] %s", msgbuffer+1); |
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176 switch(msgbuffer[1]) { |
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177 case '?': |
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178 flib_ipcconn_send_messagestr(ipc->connection, "!"); |
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179 break; |
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180 case 'C': |
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181 ipc->onConfigQueryCb(ipc->onConfigQueryCtx); |
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182 break; |
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183 case 'E': |
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184 if(len>=3) { |
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185 msgbuffer[len-2] = 0; |
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186 ipc->onEngineErrorCb(ipc->onEngineErrorCtx, msgbuffer+2); |
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187 } |
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188 break; |
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189 case 'i': |
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190 // TODO |
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191 break; |
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192 case 'Q': |
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193 ipc->onGameEndCb(ipc->onGameEndCtx, GAME_END_INTERRUPTED); |
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194 break; |
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195 case 'q': |
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196 ipc->onGameEndCb(ipc->onGameEndCtx, GAME_END_FINISHED); |
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197 break; |
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198 case 'H': |
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199 ipc->onGameEndCb(ipc->onGameEndCtx, GAME_END_HALTED); |
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200 break; |
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201 case 's': |
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202 if(len>=3) { |
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203 msgbuffer[len-2] = 0; |
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204 ipc->onChatCb(ipc->onChatCtx, msgbuffer+2, 0); |
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205 } |
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206 break; |
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207 case 'b': |
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208 if(len>=3) { |
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209 msgbuffer[len-2] = 0; |
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210 ipc->onChatCb(ipc->onChatCtx, msgbuffer+2, 1); |
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211 } |
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212 break; |
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213 default: |
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214 ipc->onEngineMessageCb(ipc->onEngineMessageCtx, msgbuffer, len); |
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215 break; |
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216 } |
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217 } |
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218 } |
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219 |
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220 if(flib_ipcconn_state(ipc->connection) == IPC_NOT_CONNECTED) { |
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221 ipc->oldConnState = IPC_NOT_CONNECTED; |
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222 ipc->onDisconnectCb(ipc->onDisconnectCtx); |
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223 } |
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224 } |
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225 |
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226 void flib_ipc_tick(flib_ipc ipc) { |
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227 if(!ipc) { |
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228 flib_log_w("Call to flib_ipc_tick with ipc==null"); |
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229 return; |
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230 } |
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231 if(ipc->running) { |
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232 flib_log_w("Call to flib_ipc_tick from a callback"); |
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233 return; |
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234 } |
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235 |
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236 ipc->running = true; |
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237 flib_ipc_wrappedtick(ipc); |
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238 ipc->running = false; |
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239 |
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240 if(ipc->destroyRequested) { |
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241 flib_ipc_destroy(&ipc); |
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242 } |
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243 } |
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244 |
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245 int flib_ipc_send_raw(flib_ipc ipc, void *data, size_t len) { |
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246 if(!ipc) { |
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247 flib_log_w("Call to flib_ipc_send_raw with ipc==null"); |
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248 return -1; |
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249 } |
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250 return flib_ipcconn_send_raw(ipc->connection, data, len); |
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251 } |
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252 |
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253 int flib_ipc_send_message(flib_ipc ipc, void *data, size_t len) { |
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254 if(!ipc) { |
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255 flib_log_w("Call to flib_ipc_send_message with ipc==null"); |
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256 return -1; |
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257 } |
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258 return flib_ipcconn_send_message(ipc->connection, data, len); |
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259 } |
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260 |
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261 int flib_ipc_send_messagestr(flib_ipc ipc, char *data) { |
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262 if(!ipc) { |
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263 flib_log_w("Call to flib_ipc_send_messagestr with ipc==null"); |
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264 return -1; |
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265 } |
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266 return flib_ipcconn_send_messagestr(ipc->connection, data); |
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267 } |
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268 |
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269 uint16_t flib_ipc_port(flib_ipc ipc) { |
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270 if(!ipc) { |
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271 flib_log_w("Call to flib_ipc_send_messagestr with ipc==null"); |
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272 return 0; |
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273 } |
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274 return flib_ipcconn_port(ipc->connection); |
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275 } |
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276 |
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277 flib_constbuffer flib_ipc_getdemo(flib_ipc ipc) { |
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278 if(!ipc) { |
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279 flib_log_w("Call to flib_ipc_send_messagestr with ipc==null"); |
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280 flib_constbuffer result = {NULL, 0}; |
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281 return result; |
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282 } |
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283 return flib_ipcconn_getrecord(ipc->connection, false); |
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284 } |
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