api/joy: protect dinput with mutex in all cases

Also practice object-oriented information hiding to avoid accesses
without the mutex.

Also provide basic joy information (guid, name) without exposing dinput
handles and so on.

1 files changed, 6 insertions, 0 deletions

diff --git a/opentrack/win32-joystick-shortcuts.cpp b/opentrack/win32-joystick-shortcuts.cpp
index 44659b7e..61a2a74a 100644
--- a/opentrack/win32-joystick-shortcuts.cpp
+++ b/opentrack/win32-joystick-shortcuts.cpp
@@ -22,3 +22,9 @@ std::unordered_map<QString, std::shared_ptr<win32_joy_ctx::joy>>& win32_joy_ctx:
     
     return js;
 }
+
+win32_joy_ctx& win32_joy_ctx::make()
+{
+    static win32_joy_ctx ret;
+    return ret;
+}