Split src/common/* into headers and definitions

src/common/communication.h

@@ -24,15 +24,15 @@
 #include <bitsery/traits/vector.h>
 #include <vestige/aeffect.h>
 
-#ifdef __WINE__
-#include "../wine-host/boost-fix.h"
-#endif
-#include <boost/asio/buffer.hpp>
-#include <boost/asio/local/stream_protocol.hpp>
 #include <cinttypes>
 #include <iostream>
 #include <optional>
 
+#ifdef __WINE__
+#include "../wine-host/boost-fix.h"
+#endif
+#include <boost/asio/local/stream_protocol.hpp>
+
 // These are for the serialization done by bitsery
 
 /**
@@ -305,34 +305,12 @@ inline T read_object(Socket& socket) {
  *
  * @relates passthrough_event
  */
-inline intptr_t send_event(boost::asio::local::stream_protocol::socket& socket,
-                           int32_t opcode,
-                           int32_t index,
-                           intptr_t value,
-                           void* data,
-                           float option) {
-    auto payload =
-        data == nullptr
-            ? std::nullopt
-            : std::make_optional(std::string(static_cast<char*>(data)));
-
-    const Event event{opcode, index, value, option, payload};
-    write_object(socket, event);
-
-    const auto response = read_object<EventResult>(socket);
-    if (response.data.has_value()) {
-        char* char_data = static_cast<char*>(data);
-
-        // For correctness we will copy the entire buffer and add a terminating
-        // null byte ourselves. In practice `response.data` will only ever
-        // contain C-style strings, but this would work with any other data
-        // format that can contain null bytes.
-        std::copy(response.data->begin(), response.data->end(), char_data);
-        char_data[response.data->size()] = 0;
-    }
-
-    return response.return_value;
-}
+intptr_t send_event(boost::asio::local::stream_protocol::socket& socket,
+                    int32_t opcode,
+                    int32_t index,
+                    intptr_t value,
+                    void* data,
+                    float option);
 
 /**
  * Receive an event from a socket and pass it through to some callback function.