mod: decluttering decoder.h examples: rpc_lite_server binding lambdas and static class methods

Author: eigen-value

examples/rpc_lite_server/rpc_lite_server.ino

@@ -1,6 +1,6 @@
 #include <Arduino_RPClite.h>
 
-SerialTransport transport(&Serial1);
+SerialTransport transport(&Serial2);
 RPCServer server(transport);
 
 int add(int a, int b){
@@ -15,15 +15,27 @@ MsgPack::str_t loopback(MsgPack::str_t message){
     return message;
 }
 
+class multiplier {
+public:
+
+    multiplier(){}
+    static int mult(int a, int b){
+        return a*b;
+    }
+};
+
+
 void setup() {
-    Serial1.begin(115200);
+    Serial2.begin(115200);
     transport.begin();
     pinMode(LED_BUILTIN, OUTPUT);
     Serial.begin(9600);
     while(!Serial);
 
     server.bind("add", add);
     server.bind("greet", greet);
+    server.bind("another_greeting", [] {return MsgPack::str_t ("This is a lambda greeting");});
+    server.bind("object_multi", &multiplier::mult);
 
 }
 

src/decoder.h

@@ -4,6 +4,7 @@
 #include "MsgPack.h"
 #include "transport.h"
 #include "dispatcher.h"
+#include "rpclite_utils.h"
 
 
 #define NO_MSG          -1
@@ -293,91 +294,6 @@ class RpcDecoder {
         return 0;
     }
 
-    bool unpackObject(MsgPack::Unpacker& unpacker){
-
-        if (unpacker.isNil()){
-            static MsgPack::object::nil_t nil;
-            return unpacker.deserialize(nil);
-        }
-        if (unpacker.isBool()){
-            static bool b;
-            return unpacker.deserialize(b);
-        }
-        if (unpacker.isUInt() || unpacker.isInt()){
-            static int integer;
-            return unpacker.deserialize(integer);
-        }
-        if (unpacker.isFloat32()){
-            static float num32;
-            return unpacker.deserialize(num32);
-        }
-        if (unpacker.isFloat64()){
-            static double num64;
-            return unpacker.deserialize(num64);
-        }
-        if (unpacker.isStr()){
-            static MsgPack::str_t string;
-            return unpacker.deserialize(string);
-        }
-        if (unpacker.isBin()){
-            static MsgPack::bin_t<uint8_t> bytes;
-            return unpacker.deserialize(bytes);
-        }
-        if (unpacker.isArray()){
-            static size_t arr_sz;
-            return unpackArray(unpacker, arr_sz);
-        }
-        if (unpacker.isMap()){
-            static size_t map_sz;
-            return unpackMap(unpacker, map_sz);
-        }
-        if (unpacker.isFixExt() || unpacker.isExt()){
-            static MsgPack::object::ext e;
-            return unpacker.deserialize(e);
-        }
-        if (unpacker.isTimestamp()){
-            static MsgPack::object::timespec t;
-            return unpacker.deserialize(t);
-        }
-
-        return false;
-    }
-
-    bool unpackArray(MsgPack::Unpacker& unpacker, size_t& size) {
-
-        static MsgPack::arr_size_t sz;
-        unpacker.deserialize(sz);
-
-        size = 0;
-        for (size_t i=0; i<sz.size(); i++){
-            if (unpackObject(unpacker)){
-                size++;
-            } else {
-                return false;
-            }
-        }
-
-        return true;
-
-    }
-
-    bool unpackMap(MsgPack::Unpacker& unpacker, size_t& size) {
-        static MsgPack::map_size_t sz;
-        unpacker.deserialize(sz);
-
-        size = 0;
-        for (size_t i=0; i<sz.size(); i++){
-            if (unpackObject(unpacker) && unpackObject(unpacker)){  // must unpack key&value
-                size++;
-            } else {
-                return false;
-            }
-        }
-                
-        return true;
-
-    }
-
 };
 
 #endif

src/rpclite_utils.h

@@ -3,18 +3,115 @@
 #define RPCLITE_UTILS_H
 
 #include <tuple>
-#include <utility> 
+#include <utility>
 
 namespace RpcUtils {
 namespace detail {
 
+
+///////////////////////////////////////
+/// --- deserialization helpers --- ///
+///////////////////////////////////////
+
+bool unpackObject(MsgPack::Unpacker& unpacker);
+
+bool unpackArray(MsgPack::Unpacker& unpacker, size_t& size) {
+
+    static MsgPack::arr_size_t sz;
+    unpacker.deserialize(sz);
+
+    size = 0;
+    for (size_t i=0; i<sz.size(); i++){
+        if (unpackObject(unpacker)){
+            size++;
+        } else {
+            return false;
+        }
+    }
+
+    return true;
+
+}
+
+bool unpackMap(MsgPack::Unpacker& unpacker, size_t& size) {
+    static MsgPack::map_size_t sz;
+    unpacker.deserialize(sz);
+
+    size = 0;
+    for (size_t i=0; i<sz.size(); i++){
+        if (unpackObject(unpacker) && unpackObject(unpacker)){  // must unpack key&value
+            size++;
+        } else {
+            return false;
+        }
+    }
+
+    return true;
+
+}
+
+bool unpackObject(MsgPack::Unpacker& unpacker){
+
+    if (unpacker.isNil()){
+        static MsgPack::object::nil_t nil;
+        return unpacker.deserialize(nil);
+    }
+    if (unpacker.isBool()){
+        static bool b;
+        return unpacker.deserialize(b);
+    }
+    if (unpacker.isUInt() || unpacker.isInt()){
+        static int integer;
+        return unpacker.deserialize(integer);
+    }
+    if (unpacker.isFloat32()){
+        static float num32;
+        return unpacker.deserialize(num32);
+    }
+    if (unpacker.isFloat64()){
+        static double num64;
+        return unpacker.deserialize(num64);
+    }
+    if (unpacker.isStr()){
+        static MsgPack::str_t string;
+        return unpacker.deserialize(string);
+    }
+    if (unpacker.isBin()){
+        static MsgPack::bin_t<uint8_t> bytes;
+        return unpacker.deserialize(bytes);
+    }
+    if (unpacker.isArray()){
+        static size_t arr_sz;
+        return unpackArray(unpacker, arr_sz);
+    }
+    if (unpacker.isMap()){
+        static size_t map_sz;
+        return unpackMap(unpacker, map_sz);
+    }
+    if (unpacker.isFixExt() || unpacker.isExt()){
+        static MsgPack::object::ext e;
+        return unpacker.deserialize(e);
+    }
+    if (unpacker.isTimestamp()){
+        static MsgPack::object::timespec t;
+        return unpacker.deserialize(t);
+    }
+
+    return false;
+}
+
 template<typename T>
 bool deserialize_single(MsgPack::Unpacker& unpacker, T& value) {
     if (!unpacker.unpackable(value)) return false;
     unpacker.deserialize(value);
     return true;
 }
 
+
+/////////////////////////////
+/// --- tuple helpers --- ///
+/////////////////////////////
+
 template<std::size_t I = 0, typename... Ts>
 typename std::enable_if<I == sizeof...(Ts), bool>::type
 deserialize_tuple(MsgPack::Unpacker&, std::tuple<Ts...>&) {