diff options
Diffstat (limited to 'source/Common/Uid.cpp')
-rw-r--r-- | source/Common/Uid.cpp | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/source/Common/Uid.cpp b/source/Common/Uid.cpp new file mode 100644 index 0000000..1930cd8 --- /dev/null +++ b/source/Common/Uid.cpp @@ -0,0 +1,58 @@ +#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) { + assert(value.IsArray()); + 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(); +} + +void Uid::WriteInto(rapidjson::Value& value, rapidjson::Document& root) { + value.Reserve(2, root.GetAllocator()); + value.PushBack((uint64_t)upper, root.GetAllocator()); + value.PushBack((uint64_t)lower, root.GetAllocator()); +} + +rapidjson::Value Uid::Write(rapidjson::Document& root) { + rapidjson::Value result(rapidjson::kArrayType); + WriteInto(result, root); + return result; +} |