Rename GroupRequest to HostRequest

We'll also use this to encode information in when launching
`yabridge-host.exe` for individually hosted plugins.

src/common/plugins.h

@@ -34,7 +34,7 @@ enum class LibArchitecture { dll_32, dll_64 };
  * `plugin_tyep_to_string()` and `plugin_type_from_string()` can be used to
  * convert these values to and from strings. The string form is used as a
  * command line argument for the individual Wine host applications, and the enum
- * form is passed directly in `GroupRequest`.
+ * form is passed directly in `HostRequest`.
  *
  * The `unkonwn` tag is not used directly, but in the event that we do call
  * `plugin_type_from_string()` with some invalid value we can use it to

src/common/serialization/common.h

@@ -51,11 +51,11 @@ template <class... Ts>
 overload(Ts...) -> overload<Ts...>;
 
 /**
- * An object containing the startup options for hosting a plugin in a plugin
- * group process. These are the exact same options that would have been passed
- * to `yabridge-host.exe` were the plugin to be hosted individually.
+ * An object containing the startup options for hosting a plugin. These options
+ * are passed to `yabridge-host.exe` as command line arguments, and they are
+ * used directly by group host processes.
  */
-struct GroupRequest {
+struct HostRequest {
     PluginType plugin_type;
     std::string plugin_path;
     std::string endpoint_base_dir;
@@ -69,8 +69,8 @@ struct GroupRequest {
 };
 
 template <>
-struct std::hash<GroupRequest> {
-    std::size_t operator()(GroupRequest const& params) const noexcept {
+struct std::hash<HostRequest> {
+    std::size_t operator()(HostRequest const& params) const noexcept {
         std::hash<string> hasher{};
 
         return hasher(params.plugin_path) ^
@@ -79,12 +79,12 @@ struct std::hash<GroupRequest> {
 };
 
 /**
- * The response sent back after the group host process receives a `GroupRequest`
+ * The response sent back after the group host process receives a `HostRequest`
  * object. This only holds the group process's PID because we need to know if
  * the group process crashes while it is initializing the plugin to prevent us
  * from waiting indefinitely for the socket to be connected to.
  */
-struct GroupResponse {
+struct HostResponse {
     pid_t pid;
 
     template <typename S>

src/plugin/host-process.cpp

@@ -183,10 +183,10 @@ GroupHost::GroupHost(boost::asio::io_context& io_context,
         write_object(
             group_socket,
             // TODO: The plugin type should of course not be hardcoded
-            GroupRequest{.plugin_type = PluginType::vst2,
-                         .plugin_path = plugin_path.string(),
-                         .endpoint_base_dir = endpoint_base_dir.string()});
-        const auto response = read_object<GroupResponse>(group_socket);
+            HostRequest{.plugin_type = PluginType::vst2,
+                        .plugin_path = plugin_path.string(),
+                        .endpoint_base_dir = endpoint_base_dir.string()});
+        const auto response = read_object<HostResponse>(group_socket);
         assert(response.pid > 0);
     };
 

src/wine-host/bridges/group.cpp

@@ -184,8 +184,8 @@ void GroupBridge::accept_requests() {
             // TODO: Do something with the plugin type
             // TODO: Maybe try to merge instantiation with `individual_host`?
             //       Might only make things messier
-            const auto request = read_object<GroupRequest>(socket);
-            write_object(socket, GroupResponse{boost::this_process::get_id()});
+            const auto request = read_object<HostRequest>(socket);
+            write_object(socket, HostResponse{boost::this_process::get_id()});
 
             // The plugin has to be initiated on the IO context's thread because
             // this has to be done on the same thread that's handling messages,

src/wine-host/bridges/vst2.h

@@ -68,7 +68,7 @@ class Vst2Bridge {
      *   or if communication could not be set up.
      *
      * TODO: Make these two arguments `boost::filesystem::path`, also use those
-     *       in `GroupRequest`.
+     *       in `HostRequest`.
      */
     Vst2Bridge(MainContext& main_context,
                std::string plugin_dll_path,