kc3-lang/SDL/src

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• Hash : 25f9e32b
  Author :
  Date : 2021-10-02T16:52:43
  

  wayland: Don't let multiple threads dispatch wayland events at once
  
  wl_display_dispatch() will block if there are no events available, and
  while we try to avoid this by using SDL_IOReady() to verify there are
  events before calling it, there is a race condition between
  SDL_IOReady() and wl_display_dispatch() if multiple threads are
  involved.
  
  This is made more likely by the fact that SDL_GL_SwapWindow() calls
  wl_display_dispatch() if vsync is enabled, in order to wait for frame
  events. Therefore any program which pumps events on a different thread
  from SDL_GL_SwapWindow() could end up blocking in one or other of them
  until another event arrives.
  
  This change fixes this by wrapping wl_display_dispatch() in a new mutex,
  which ensures only one thread can compete for wayland events at a time,
  and hence the SDL_IOReady() check should successfully prevent either
  from blocking.
  

• Files

• SDL.c
• SDL_assert.c
• SDL_assert_c.h
• SDL_dataqueue.c
• SDL_dataqueue.h
• SDL_error.c
• SDL_error_c.h
• SDL_hints.c
• SDL_hints_c.h
• SDL_internal.h
• SDL_log.c
• atomic/
• audio/
• core/
• cpuinfo/
• dynapi/
• events/
• file/
• filesystem/
• haptic/
• hidapi/
• joystick/
• libm/
• loadso/
• locale/
• main/
• misc/
• power/
• render/
• sensor/
• stdlib/
• test/
• thread/
• timer/
• video/

• Properties

• Git HTTP	https://git.kmx.io/kc3-lang/SDL.git
  Git SSH	git@git.kmx.io:kc3-lang/SDL.git
  Public access ?	public
  Description	Fork of https://github.com/libsdl-org/SDL
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