Package org.lwjgl.glfw

Interface GLFWDeallocateCallbackI

All Superinterfaces:
org.lwjgl.system.CallbackI, org.lwjgl.system.Pointer
All Known Implementing Classes:
GLFWDeallocateCallback
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface public interface GLFWDeallocateCallbackI extends org.lwjgl.system.CallbackI
The function pointer type for memory deallocation callbacks.

This is the function pointer type for memory deallocation callbacks. A memory deallocation callback function has the following signature:


 void function_name(void* block, void* user)

This function may deallocate the specified memory block. This memory block will have been allocated with the same allocator.

This function must support being called during Init but before the library is flagged as initialized, as well as during Terminate after the library is no longer flagged as initialized.

The block address will never be NULL. Deallocations of NULL are filtered out before reaching the custom allocator.

If this function returns NULL, GLFW will emit OUT_OF_MEMORY.

Note
  • The specified memory block will not be accessed by GLFW after this function is called.
  • This function should not call any GLFW function.
  • This function must support being called from any thread that calls GLFW functions.

Type


 void (*invoke(long, long)) (
     void *block,
     void *user
 )
Since:
version 3.4

  • Nested Class Summary

    Nested classes/interfaces inherited from interface org.lwjgl.system.Pointer

    org.lwjgl.system.Pointer.Default

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final org.lwjgl.system.libffi.FFICIF
    CIF
     

    Fields inherited from interface org.lwjgl.system.Pointer

    BITS32, BITS64, CLONG_SHIFT, CLONG_SIZE, POINTER_SHIFT, POINTER_SIZE

  • Method Summary

    Modifier and Type
    Method
    Description
    default void
    callback(long ret, long args)
     
    default org.lwjgl.system.libffi.FFICIF
    getCallInterface()
     
    void
    invoke(long block, long user)
    Will be called for memory deallocation requests.

    Methods inherited from interface org.lwjgl.system.CallbackI

    address

  • Field Details

    • CIF

      static final org.lwjgl.system.libffi.FFICIF CIF

  • Method Details

    • getCallInterface

      default org.lwjgl.system.libffi.FFICIF getCallInterface()
      Specified by:
      getCallInterface in interface org.lwjgl.system.CallbackI

    • callback

      default void callback(long ret, long args)
      Specified by:
      callback in interface org.lwjgl.system.CallbackI

    • invoke

      void invoke(long block, long user)
      Will be called for memory deallocation requests.
      Parameters:
      block - the address of the memory block to deallocate
      user - the user-defined pointer from the allocator