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Exposed the joystick locking functions for multi-threaded access to the joystick API

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Sam Lantinga 2017-10-10 11:10:15 -07:00
parent 2657dfae49
commit d90fce3c9e
6 changed files with 59 additions and 45 deletions
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14
include/SDL_joystick.h
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@ -106,6 +106,20 @@ typedef enum
} SDL_JoystickPowerLevel;
/* Function prototypes */
/**
* Locking for multi-threaded access to the joystick API
*
* If you are using the joystick API or handling events from multiple threads
* you should use these locking functions to protect access to the joysticks.
*
* In particular, you are guaranteed that the joystick list won't change, so
* the API functions that take a joystick index will be valid, and joystick
* and game controller events will not be delivered.
*/
extern DECLSPEC void SDLCALL SDL_LockJoysticks(void);
extern DECLSPEC void SDLCALL SDL_UnlockJoysticks(void);
/**
* Count the number of joysticks attached to the system right now
*/