Struct SDL_InitState 

#[repr(C)]
pub struct SDL_InitState {
    pub status: SDL_AtomicInt,
    pub thread: SDL_ThreadID,
    pub reserved: *mut c_void,
}

A structure used for thread-safe initialization and shutdown.

Here is an example of using this:

   static SDL_InitState init;

   bool InitSystem(void)
   {
       if (!SDL_ShouldInit(&init)) {
           // The system is initialized
           return true;
       }

       // At this point, you should not leave this function without calling SDL_SetInitialized()

       bool initialized = DoInitTasks();
       SDL_SetInitialized(&init, initialized);
       return initialized;
   }

   bool UseSubsystem(void)
   {
       if (SDL_ShouldInit(&init)) {
           // Error, the subsystem isn't initialized
           SDL_SetInitialized(&init, false);
           return false;
       }

       // Do work using the initialized subsystem

       return true;
   }

   void QuitSystem(void)
   {
       if (!SDL_ShouldQuit(&init)) {
           // The system is not initialized
           return;
       }

       // At this point, you should not leave this function without calling SDL_SetInitialized()

       DoQuitTasks();
       SDL_SetInitialized(&init, false);
   }

Note that this doesn’t protect any resources created during initialization, or guarantee that nobody is using those resources during cleanup. You should use other mechanisms to protect those, if that’s a concern for your code.

Availability

This struct is available since SDL 3.2.0.

Fields

status: SDL_AtomicInt

thread: SDL_ThreadID

reserved: *mut c_void

Trait Implementations

impl Debug for SDL_InitState

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for SDL_InitState

fn default() -> Self

Initialize all fields to zero