MemoryMonitor.LowMemoryWarningCallback (java-gi API)

All Superinterfaces:: FunctionPointer

Enclosing interface:: MemoryMonitor

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 static interface MemoryMonitor.LowMemoryWarningCallback extends FunctionPointer

Functional interface declaration of the LowMemoryWarningCallback callback.

See Also:

Method Summary

Modifier and Type

Method

Description

void

run(MemoryMonitorWarningLevel level)

Emitted when the system is running low on free memory.

default MemorySegment

toCallback(Arena arena)

Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, int) method.

default void

upcall(MemorySegment sourceMemoryMonitor, int level)

The upcall method is called from native code.

Method Details
- run
  
  void run(MemoryMonitorWarningLevel level)
  
  Emitted when the system is running low on free memory.
  The signal handler should then take the appropriate action depending on the warning level. See the GMemoryMonitorWarningLevel documentation for details.
  Since the MemoryMonitor is a singleton, this signal will be emitted in the MainContext.default_()[global-default main context].
  
  Since:
  
  2.64
- upcall
  
  default void upcall(MemorySegment sourceMemoryMonitor, int level)
  
  The upcall method is called from native code. The parameters are marshaled and run(org.gnome.gio.MemoryMonitorWarningLevel) is executed.
- toCallback
  
  default MemorySegment toCallback(Arena arena)
  
  Creates a native function pointer to the upcall(java.lang.foreign.MemorySegment, int) method.
  
  Specified by:
  
  toCallback in interface FunctionPointer
  
  Parameters:
  
  arena - the arena in which the function pointer is allocated
  
  Returns:
  
  the native function pointer