cleaning up file / memory streams

src/streams/memorystream.cpp

@@ -28,7 +28,22 @@ MemoryStream& MemoryStream::operator=(MemoryStream&& src) noexcept
 	return *this;
 }
 
-size_t MemoryStream::read_into(void* ptr, size_t len)
+size_t MemoryStream::length() const
+{
+	return m_length;
+}
+
+size_t MemoryStream::position() const
+{
+	return m_position;
+}
+
+size_t MemoryStream::seek(size_t seekTo)
+{
+	return m_position = (seekTo < 0 ? 0 : (seekTo > m_length ? m_length : seekTo));
+}
+
+size_t MemoryStream::read_data(void* ptr, size_t len)
 {
 	if (len < 0 || ptr == nullptr)
 		return 0;
@@ -41,7 +56,7 @@ size_t MemoryStream::read_into(void* ptr, size_t len)
 	return len;
 }
 
-size_t MemoryStream::write_from(const void* ptr, size_t len)
+size_t MemoryStream::write_data(const void* ptr, size_t len)
 {
 	if (len < 0 || ptr == nullptr)
 		return 0;
@@ -53,3 +68,33 @@ size_t MemoryStream::write_from(const void* ptr, size_t len)
 	m_position += len;
 	return len;
 }
+
+bool MemoryStream::is_open() const
+{
+	return m_data != nullptr;
+}
+
+bool MemoryStream::is_readable() const
+{
+	return true;
+}
+
+bool MemoryStream::is_writable() const
+{
+	return true;
+}
+
+void MemoryStream::close()
+{
+	m_data = nullptr; m_length = m_position = 0;
+}
+
+char* MemoryStream::data()
+{
+	return m_data;
+}
+
+const char* MemoryStream::data() const
+{
+	return m_data;
+}