allow concurrent proxy sessions on the same account

src/Account.hh

@@ -2,6 +2,7 @@
 
 #include <memory>
 #include <mutex>
+#include <phosg/Hash.hh>
 #include <phosg/JSON.hh>
 #include <shared_mutex>
 #include <string>
@@ -16,6 +17,10 @@ struct DCNTELicense {
   std::string serial_number;
   std::string access_key;
 
+  inline uint64_t proxy_session_id_part() const {
+    return phosg::fnv1a32(this->serial_number);
+  }
+
   static std::shared_ptr<DCNTELicense> from_json(const phosg::JSON& json);
   phosg::JSON json() const;
 };
@@ -24,6 +29,10 @@ struct V1V2License {
   uint32_t serial_number = 0;
   std::string access_key;
 
+  inline uint64_t proxy_session_id_part() const {
+    return this->serial_number;
+  }
+
   static std::shared_ptr<V1V2License> from_json(const phosg::JSON& json);
   phosg::JSON json() const;
 };
@@ -33,6 +42,10 @@ struct GCLicense {
   std::string access_key;
   std::string password;
 
+  inline uint64_t proxy_session_id_part() const {
+    return this->serial_number;
+  }
+
   static std::shared_ptr<GCLicense> from_json(const phosg::JSON& json);
   phosg::JSON json() const;
 };
@@ -42,6 +55,10 @@ struct XBLicense {
   uint64_t user_id = 0;
   uint64_t account_id = 0;
 
+  inline uint64_t proxy_session_id_part() const {
+    return phosg::fnv1a32(this->gamertag);
+  }
+
   static std::shared_ptr<XBLicense> from_json(const phosg::JSON& json);
   phosg::JSON json() const;
 };
@@ -50,6 +67,10 @@ struct BBLicense {
   std::string username;
   std::string password;
 
+  inline uint64_t proxy_session_id_part() const {
+    return phosg::fnv1a32(this->username);
+  }
+
   static std::shared_ptr<BBLicense> from_json(const phosg::JSON& json);
   phosg::JSON json() const;
 };
@@ -157,6 +178,8 @@ struct Login {
   std::shared_ptr<XBLicense> xb_license;
   std::shared_ptr<BBLicense> bb_license;
 
+  uint64_t proxy_session_id() const;
+
   std::string str() const;
 };