Revert "Removed public joystick locking API"

This reverts commit a515f51ac0.

We still need joystick locking to protect the gamepad mappings

docs/README-migration.md

@@ -349,7 +349,6 @@ The following symbols have been renamed:
 * SDL_JOYSTICK_TYPE_GAMECONTROLLER => SDL_JOYSTICK_TYPE_GAMEPAD
 
 The following functions have been removed:
-* SDL_LockJoysticks()
 * SDL_JoystickEventState() - replaced with SDL_SetJoystickEventsEnabled() and SDL_JoystickEventsEnabled()
 * SDL_JoystickGetDeviceGUID() - replaced with SDL_GetJoystickInstanceGUID()
 * SDL_JoystickGetDeviceInstanceID()
@@ -360,8 +359,7 @@ The following functions have been removed:
 * SDL_JoystickGetDeviceVendor() - replaced with SDL_GetJoystickInstanceVendor()
 * SDL_JoystickNameForIndex() - replaced with SDL_GetJoystickInstanceName()
 * SDL_JoystickPathForIndex() - replaced with SDL_GetJoystickInstancePath()
-* SDL_NumJoysticks() - replaced with SDL_GetJoysticks()
-* SDL_UnlockJoysticks()
+* SDL_NumJoysticks - replaced with SDL_GetJoysticks()
  
 ## SDL_keycode.h
 

include/SDL3/SDL_joystick.h

@@ -64,6 +64,9 @@ extern "C" {
 /**
  * The joystick structure used to identify an SDL joystick
  */
+#ifdef SDL_THREAD_SAFETY_ANALYSIS
+extern SDL_mutex *SDL_joystick_lock;
+#endif
 struct SDL_Joystick;
 typedef struct SDL_Joystick SDL_Joystick;
 
@@ -115,6 +118,24 @@ typedef enum
 
 /* Function prototypes */
 
+/**
+ * Locking for atomic access to the joystick API
+ *
+ * The SDL joystick functions are thread-safe, however you can lock the joysticks
+ * while processing to guarantee that the joystick list won't change and joystick
+ * and gamepad events will not be delivered.
+ *
+ * \since This function is available since SDL 3.0.0.
+ */
+extern DECLSPEC void SDLCALL SDL_LockJoysticks(void) SDL_ACQUIRE(SDL_joystick_lock);
+
+/**
+ * Unlocking for atomic access to the joystick API
+ *
+ * \since This function is available since SDL 3.0.0.
+ */
+extern DECLSPEC void SDLCALL SDL_UnlockJoysticks(void) SDL_RELEASE(SDL_joystick_lock);
+
 /**
  * Get a list of currently connected joysticks.
  *

src/dynapi/SDL_dynapi.sym

@@ -450,6 +450,7 @@ SDL3_0.0.0 {
     SDL_LoadWAV_RW;
     SDL_LockAudio;
     SDL_LockAudioDevice;
+    SDL_LockJoysticks;
     SDL_LockMutex;
     SDL_LockSurface;
     SDL_LockTexture;
@@ -666,6 +667,7 @@ SDL3_0.0.0 {
     SDL_UnloadObject;
     SDL_UnlockAudio;
     SDL_UnlockAudioDevice;
+    SDL_UnlockJoysticks;
     SDL_UnlockMutex;
     SDL_UnlockSurface;
     SDL_UnlockTexture;

src/dynapi/SDL_dynapi_overrides.h

@@ -476,6 +476,7 @@
 #define SDL_LoadWAV_RW SDL_LoadWAV_RW_REAL
 #define SDL_LockAudio SDL_LockAudio_REAL
 #define SDL_LockAudioDevice SDL_LockAudioDevice_REAL
+#define SDL_LockJoysticks SDL_LockJoysticks_REAL
 #define SDL_LockMutex SDL_LockMutex_REAL
 #define SDL_LockSurface SDL_LockSurface_REAL
 #define SDL_LockTexture SDL_LockTexture_REAL
@@ -692,6 +693,7 @@
 #define SDL_UnloadObject SDL_UnloadObject_REAL
 #define SDL_UnlockAudio SDL_UnlockAudio_REAL
 #define SDL_UnlockAudioDevice SDL_UnlockAudioDevice_REAL
+#define SDL_UnlockJoysticks SDL_UnlockJoysticks_REAL
 #define SDL_UnlockMutex SDL_UnlockMutex_REAL
 #define SDL_UnlockSurface SDL_UnlockSurface_REAL
 #define SDL_UnlockTexture SDL_UnlockTexture_REAL

src/dynapi/SDL_dynapi_procs.h

@@ -543,6 +543,7 @@ SDL_DYNAPI_PROC(void*,SDL_LoadObject,(const char *a),(a),return)
 SDL_DYNAPI_PROC(SDL_AudioSpec*,SDL_LoadWAV_RW,(SDL_RWops *a, int b, SDL_AudioSpec *c, Uint8 **d, Uint32 *e),(a,b,c,d,e),return)
 SDL_DYNAPI_PROC(void,SDL_LockAudio,(void),(),)
 SDL_DYNAPI_PROC(void,SDL_LockAudioDevice,(SDL_AudioDeviceID a),(a),)
+SDL_DYNAPI_PROC(void,SDL_LockJoysticks,(void),(),)
 SDL_DYNAPI_PROC(int,SDL_LockMutex,(SDL_mutex *a),(a),return)
 SDL_DYNAPI_PROC(int,SDL_LockSurface,(SDL_Surface *a),(a),return)
 SDL_DYNAPI_PROC(int,SDL_LockTexture,(SDL_Texture *a, const SDL_Rect *b, void **c, int *d),(a,b,c,d),return)
@@ -746,6 +747,7 @@ SDL_DYNAPI_PROC(int,SDL_TryLockMutex,(SDL_mutex *a),(a),return)
 SDL_DYNAPI_PROC(void,SDL_UnloadObject,(void *a),(a),)
 SDL_DYNAPI_PROC(void,SDL_UnlockAudio,(void),(),)
 SDL_DYNAPI_PROC(void,SDL_UnlockAudioDevice,(SDL_AudioDeviceID a),(a),)
+SDL_DYNAPI_PROC(void,SDL_UnlockJoysticks,(void),(),)
 SDL_DYNAPI_PROC(int,SDL_UnlockMutex,(SDL_mutex *a),(a),return)
 SDL_DYNAPI_PROC(void,SDL_UnlockSurface,(SDL_Surface *a),(a),)
 SDL_DYNAPI_PROC(void,SDL_UnlockTexture,(SDL_Texture *a),(a),)

src/joystick/SDL_joystick_c.h

@@ -43,16 +43,6 @@ extern SDL_bool SDL_JoysticksInitialized(void);
 /* Return whether the joystick system is shutting down */
 extern SDL_bool SDL_JoysticksQuitting(void);
 
-#ifdef SDL_THREAD_SAFETY_ANALYSIS
-extern SDL_mutex *SDL_joystick_lock;
-#endif
-
-/* Locking for atomic access to the joystick API */
-extern void SDL_LockJoysticks(void) SDL_ACQUIRE(SDL_joystick_lock);
-
-/* Unlocking for atomic access to the joystick API */
-extern void SDL_UnlockJoysticks(void) SDL_RELEASE(SDL_joystick_lock);
-
 /* Return whether the joysticks are currently locked */
 extern SDL_bool SDL_JoysticksLocked(void);