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1 #include "ipc.h" |
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2 #include "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 flib_ipcconn_tick(ipc->connection); |
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159 IpcConnState newstate = flib_ipcconn_state(ipc->connection); |
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160 if(ipc->oldConnState == IPC_LISTENING && newstate == IPC_CONNECTED) { |
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161 ipc->oldConnState = newstate; |
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162 ipc->onConnectCb(ipc->onConnectCtx); |
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163 } |
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164 |
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165 if(ipc->oldConnState == IPC_CONNECTED) { |
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166 uint8_t msgbuffer[257]; |
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167 int len; |
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168 while(!ipc->destroyRequested && (len = flib_ipcconn_recv_message(ipc->connection, msgbuffer))>=0) { |
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169 if(len<2) { |
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170 flib_log_w("Received short message from IPC (<2 bytes)"); |
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171 continue; |
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172 } |
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173 msgbuffer[len] = 0; |
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174 flib_log_i("[IPC in] %s", msgbuffer+1); |
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175 switch(msgbuffer[1]) { |
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176 case '?': |
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177 flib_ipcconn_send_messagestr(ipc->connection, "!"); |
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178 break; |
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179 case 'C': |
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180 ipc->onConfigQueryCb(ipc->onConfigQueryCtx); |
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181 break; |
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182 case 'E': |
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183 if(len>=3) { |
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184 msgbuffer[len-2] = 0; |
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185 ipc->onEngineErrorCb(ipc->onEngineErrorCtx, msgbuffer+2); |
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186 } |
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187 break; |
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188 case 'i': |
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189 // TODO |
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190 break; |
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191 case 'Q': |
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192 ipc->onGameEndCb(ipc->onGameEndCtx, GAME_END_INTERRUPTED); |
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193 break; |
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194 case 'q': |
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195 ipc->onGameEndCb(ipc->onGameEndCtx, GAME_END_FINISHED); |
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196 break; |
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197 case 'H': |
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198 ipc->onGameEndCb(ipc->onGameEndCtx, GAME_END_HALTED); |
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199 break; |
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200 case 's': |
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201 if(len>=3) { |
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202 msgbuffer[len-2] = 0; |
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203 ipc->onChatCb(ipc->onChatCtx, msgbuffer+2, 0); |
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204 } |
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205 break; |
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206 case 'b': |
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207 if(len>=3) { |
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208 msgbuffer[len-2] = 0; |
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209 ipc->onChatCb(ipc->onChatCtx, msgbuffer+2, 1); |
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210 } |
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211 break; |
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212 default: |
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213 ipc->onEngineMessageCb(ipc->onEngineMessageCtx, msgbuffer, len); |
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214 break; |
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215 } |
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216 } |
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217 } |
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218 |
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219 newstate = flib_ipcconn_state(ipc->connection); |
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220 if(newstate == IPC_NOT_CONNECTED) { |
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221 ipc->oldConnState = newstate; |
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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 int flib_ipc_send_raw(flib_ipc ipc, void *data, size_t len) { |
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227 if(!ipc) { |
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228 flib_log_w("Call to flib_ipc_send_raw with ipc==null"); |
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229 return -1; |
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230 } |
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231 return flib_ipcconn_send_raw(ipc->connection, data, len); |
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232 } |
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233 |
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234 int flib_ipc_send_message(flib_ipc ipc, void *data, size_t len) { |
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235 if(!ipc) { |
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236 flib_log_w("Call to flib_ipc_send_message with ipc==null"); |
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237 return -1; |
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238 } |
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239 return flib_ipcconn_send_message(ipc->connection, data, len); |
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240 } |
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241 |
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242 int flib_ipc_send_messagestr(flib_ipc ipc, char *data) { |
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243 if(!ipc) { |
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244 flib_log_w("Call to flib_ipc_send_messagestr with ipc==null"); |
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245 return -1; |
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246 } |
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247 return flib_ipcconn_send_messagestr(ipc->connection, data); |
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248 } |
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249 |
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250 uint16_t flib_ipc_port(flib_ipc ipc) { |
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251 if(!ipc) { |
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252 flib_log_w("Call to flib_ipc_send_messagestr with ipc==null"); |
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253 return 0; |
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254 } |
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255 return flib_ipcconn_port(ipc->connection); |
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256 } |
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257 |
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258 flib_constbuffer flib_ipc_getdemo(flib_ipc ipc) { |
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259 if(!ipc) { |
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260 flib_log_w("Call to flib_ipc_send_messagestr with ipc==null"); |
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261 flib_constbuffer result = {NULL, 0}; |
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262 return result; |
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263 } |
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264 return flib_ipcconn_getdemo(ipc->connection); |
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265 } |
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266 |
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267 void flib_ipc_tick(flib_ipc ipc) { |
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268 if(!ipc) { |
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269 flib_log_w("Call to flib_ipc_tick with ipc==null"); |
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270 return; |
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271 } |
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272 if(ipc->running) { |
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273 flib_log_w("Call to flib_ipc_tick from a callback"); |
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274 return; |
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275 } |
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276 |
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277 ipc->running = true; |
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278 flib_ipc_wrappedtick(ipc); |
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279 ipc->running = false; |
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280 |
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281 if(ipc->destroyRequested) { |
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282 flib_ipc_destroy(&ipc); |
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283 } |
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284 } |