The great renaming: switch to "module style"

1 files changed, 70 insertions, 0 deletions

diff --git a/src/brussel.common/Uid.cpp b/src/brussel.common/Uid.cpp
new file mode 100644
index 0000000..58dfffd
--- /dev/null
+++ b/src/brussel.common/Uid.cpp
@@ -0,0 +1,70 @@
+#include "Uid.hpp"
+
+#include "RapidJsonHelper.hpp"
+
+#include <rapidjson/document.h>
+#include <cstring>
+#include <random>
+
+Uid Uid::Create() {
+	std::random_device rd;
+	std::mt19937_64 gen(rd());
+	std::uniform_int_distribution<uint64_t> dist(
+		std::numeric_limits<uint64_t>::min(),
+		std::numeric_limits<uint64_t>::max());
+
+	Uid uid;
+	uid.upper = dist(gen);
+	uid.lower = dist(gen);
+	return uid;
+}
+
+bool Uid::IsNull() const {
+	return upper == 0 && lower == 0;
+}
+
+void Uid::ReadString(std::string_view str) {
+	sscanf(str.data(), BRUSSEL_Uid_SCAN_STR, &upper, &lower);
+}
+
+std::string Uid::WriteString() {
+	char buf[256];
+	snprintf(buf, sizeof(buf), BRUSSEL_Uid_FORMAT_STR, upper, lower);
+	return std::string(buf);
+}
+
+void Uid::Read(const rapidjson::Value& value) {
+	if (value.IsString()) {
+		ReadString(rapidjson::AsStringView(value));
+	} else if (value.IsArray()) {
+		// Compatibility support
+		assert(value.Size() == 2);
+		auto& upper = value[0];
+		assert(upper.IsUint64());
+		auto& lower = value[1];
+		assert(lower.IsUint64());
+
+		this->upper = upper.GetUint64();
+		this->lower = lower.GetUint64();
+	} else {
+		assert(false);
+	}
+}
+
+void Uid::WriteInto(rapidjson::Value& value, rapidjson::Document& root) const {
+#if BRUSSEL_Uid_WRITE_USE_ARRAY
+	value.Reserve(2, root.GetAllocator());
+	value.PushBack((uint64_t)upper, root.GetAllocator());
+	value.PushBack((uint64_t)lower, root.GetAllocator());
+#else
+	char buf[256];
+	int len = snprintf(buf, sizeof(buf), BRUSSEL_Uid_FORMAT_STR, upper, lower);
+	value.SetString(buf, len, root.GetAllocator());
+#endif
+}
+
+rapidjson::Value Uid::Write(rapidjson::Document& root) const {
+	rapidjson::Value result(rapidjson::kArrayType);
+	WriteInto(result, root);
+	return result;
+}