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Member "xorg-server-1.20.5/include/callback.h" (30 May 2019, 3550 Bytes) of package /linux/misc/xorg-server-1.20.5.tar.bz2:


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    1 /***********************************************************
    2 
    3 Copyright 1987, 1998  The Open Group
    4 
    5 Permission to use, copy, modify, distribute, and sell this software and its
    6 documentation for any purpose is hereby granted without fee, provided that
    7 the above copyright notice appear in all copies and that both that
    8 copyright notice and this permission notice appear in supporting
    9 documentation.
   10 
   11 The above copyright notice and this permission notice shall be included in
   12 all copies or substantial portions of the Software.
   13 
   14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
   17 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
   18 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
   19 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   20 
   21 Except as contained in this notice, the name of The Open Group shall not be
   22 used in advertising or otherwise to promote the sale, use or other dealings
   23 in this Software without prior written authorization from The Open Group.
   24 
   25 Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
   26 
   27                         All Rights Reserved
   28 
   29 Permission to use, copy, modify, and distribute this software and its
   30 documentation for any purpose and without fee is hereby granted,
   31 provided that the above copyright notice appear in all copies and that
   32 both that copyright notice and this permission notice appear in
   33 supporting documentation, and that the name of Digital not be
   34 used in advertising or publicity pertaining to distribution of the
   35 software without specific, written prior permission.
   36 
   37 DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
   38 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
   39 DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
   40 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
   41 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
   42 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
   43 SOFTWARE.
   44 
   45 ******************************************************************/
   46 
   47 #ifndef CALLBACK_H
   48 #define CALLBACK_H
   49 
   50 #include <X11/X.h>              /* for GContext, Mask */
   51 #include <X11/Xdefs.h>          /* for Bool */
   52 #include <X11/Xproto.h>
   53 #include <X11/Xfuncproto.h>
   54 
   55 /*
   56  *  callback manager stuff
   57  */
   58 
   59 #ifndef _XTYPEDEF_CALLBACKLISTPTR
   60 typedef struct _CallbackList *CallbackListPtr;  /* also in misc.h */
   61 
   62 #define _XTYPEDEF_CALLBACKLISTPTR
   63 #endif
   64 
   65 typedef void (*CallbackProcPtr) (CallbackListPtr *, void *, void *);
   66 
   67 extern _X_EXPORT Bool AddCallback(CallbackListPtr *pcbl,
   68                                   CallbackProcPtr callback,
   69                                   void *data);
   70 
   71 extern _X_EXPORT Bool DeleteCallback(CallbackListPtr *pcbl,
   72                                      CallbackProcPtr callback,
   73                                      void *data);
   74 
   75 extern _X_EXPORT void _CallCallbacks(CallbackListPtr *pcbl,
   76                                      void *call_data);
   77 
   78 static inline void
   79 CallCallbacks(CallbackListPtr *pcbl, void *call_data)
   80 {
   81     if (!pcbl || !*pcbl)
   82         return;
   83     _CallCallbacks(pcbl, call_data);
   84 }
   85 
   86 extern _X_EXPORT void DeleteCallbackList(CallbackListPtr *pcbl);
   87 
   88 extern _X_EXPORT void InitCallbackManager(void);
   89 extern _X_EXPORT void DeleteCallbackManager(void);
   90 
   91 #endif                          /* CALLBACK_H */