LibIPC: Replace u32/u64 value coders with u/ul/ull value coders

We can and should do more cleanups of this kind, but this is a quick fix
to unbreak the 32-bit HackStudio build.

Userland/Libraries/LibIPC/Decoder.cpp

@@ -37,13 +37,19 @@ ErrorOr<void> Decoder::decode(u16& value)
     return m_stream.try_handle_any_error();
 }
 
-ErrorOr<void> Decoder::decode(u32& value)
+ErrorOr<void> Decoder::decode(unsigned& value)
 {
     m_stream >> value;
     return m_stream.try_handle_any_error();
 }
 
-ErrorOr<void> Decoder::decode(u64& value)
+ErrorOr<void> Decoder::decode(unsigned long& value)
+{
+    m_stream >> value;
+    return m_stream.try_handle_any_error();
+}
+
+ErrorOr<void> Decoder::decode(unsigned long long& value)
 {
     m_stream >> value;
     return m_stream.try_handle_any_error();

Userland/Libraries/LibIPC/Decoder.h

@@ -34,8 +34,9 @@ public:
     ErrorOr<void> decode(bool&);
     ErrorOr<void> decode(u8&);
     ErrorOr<void> decode(u16&);
-    ErrorOr<void> decode(u32&);
-    ErrorOr<void> decode(u64&);
+    ErrorOr<void> decode(unsigned&);
+    ErrorOr<void> decode(unsigned long&);
+    ErrorOr<void> decode(unsigned long long&);
     ErrorOr<void> decode(i8&);
     ErrorOr<void> decode(i16&);
     ErrorOr<void> decode(i32&);

Userland/Libraries/LibIPC/Encoder.cpp

@@ -36,17 +36,16 @@ Encoder& Encoder::operator<<(u16 value)
     return *this;
 }
 
-Encoder& Encoder::operator<<(u32 value)
+void Encoder::encode_u32(u32 value)
 {
     m_buffer.data.ensure_capacity(m_buffer.data.size() + 4);
     m_buffer.data.unchecked_append((u8)value);
     m_buffer.data.unchecked_append((u8)(value >> 8));
     m_buffer.data.unchecked_append((u8)(value >> 16));
     m_buffer.data.unchecked_append((u8)(value >> 24));
-    return *this;
 }
 
-Encoder& Encoder::operator<<(u64 value)
+void Encoder::encode_u64(u64 value)
 {
     m_buffer.data.ensure_capacity(m_buffer.data.size() + 8);
     m_buffer.data.unchecked_append((u8)value);
@@ -57,6 +56,29 @@ Encoder& Encoder::operator<<(u64 value)
     m_buffer.data.unchecked_append((u8)(value >> 40));
     m_buffer.data.unchecked_append((u8)(value >> 48));
     m_buffer.data.unchecked_append((u8)(value >> 56));
+}
+
+Encoder& Encoder::operator<<(unsigned value)
+{
+    encode_u32(value);
+    return *this;
+}
+
+Encoder& Encoder::operator<<(unsigned long value)
+{
+    if constexpr (sizeof(value) == 4)
+        encode_u32(value);
+    else
+        encode_u64(value);
+    return *this;
+}
+
+Encoder& Encoder::operator<<(unsigned long long value)
+{
+    if constexpr (sizeof(value) == 4)
+        encode_u32(value);
+    else
+        encode_u64(value);
     return *this;
 }
 

Userland/Libraries/LibIPC/Encoder.h

@@ -30,8 +30,9 @@ public:
     Encoder& operator<<(bool);
     Encoder& operator<<(u8);
     Encoder& operator<<(u16);
-    Encoder& operator<<(u32);
-    Encoder& operator<<(u64);
+    Encoder& operator<<(unsigned);
+    Encoder& operator<<(unsigned long);
+    Encoder& operator<<(unsigned long long);
     Encoder& operator<<(i8);
     Encoder& operator<<(i16);
     Encoder& operator<<(i32);
@@ -95,6 +96,9 @@ public:
     }
 
 private:
+    void encode_u32(u32);
+    void encode_u64(u64);
+
     MessageBuffer& m_buffer;
 };