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      1 /*
      2 
      3 Copyright 1988, 1989, 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 */
     26 
     27 /* Created By:  Chris D. Peterson
     28  *              MIT X Consortium
     29  * Date:        May 8, 1989
     30  */
     31 
     32 #ifdef HAVE_CONFIG_H
     33 #include <config.h>
     34 #endif
     35 #include <X11/Intrinsic.h>
     36 #include <X11/Xmu/Initer.h>
     37 
     38 struct InitializerList {
     39   XmuInitializerProc function;	/* function to call */
     40   XPointer data;		/* Data to pass the function. */
     41   XtAppContext * app_con_list;	/* a null terminated list of app_contexts. */
     42 };
     43 
     44 /*
     45  * Prototypes
     46  */
     47 static Bool AddToAppconList(XtAppContext**, XtAppContext);
     48 
     49 static struct InitializerList * init_list = NULL;
     50 static Cardinal init_list_length = 0;
     51 
     52 void
     53 XmuAddInitializer(XmuInitializerProc func, XPointer data)
     54 {
     55   init_list_length++;
     56   init_list = (struct InitializerList *) XtRealloc( (char *) init_list,
     57 					    (sizeof(struct InitializerList) *
     58 					     init_list_length) );
     59 
     60   init_list[init_list_length - 1].function = func;
     61   init_list[init_list_length - 1].data = data;
     62   init_list[init_list_length - 1].app_con_list = NULL;
     63 }
     64 
     65 void
     66 XmuCallInitializers(XtAppContext app_con)
     67 {
     68   unsigned i;
     69 
     70   for (i = 0 ; i < init_list_length ; i++) {
     71     if (AddToAppconList(&(init_list[i].app_con_list), app_con))
     72       (init_list[i].function) (app_con, init_list[i].data);
     73   }
     74 }
     75 
     76 /*
     77  * Function:
     78  *	AddToAppconList
     79  *
     80  * Parameters:
     81  *	app_list - NULL terminated list of application contexts
     82  *	app_con	 - application context to test
     83  *
     84  * Description:
     85  *	  Adds an action to the application context list and
     86  *	returns True, if this app_con is already on the list then
     87  *	it is NOT added and False is returned.
     88  *
     89  * Returns:
     90  *	True if not found, False if found
     91  */
     92 static Bool
     93 AddToAppconList(XtAppContext **app_list, XtAppContext app_con)
     94 {
     95   int i;
     96   XtAppContext *local_list;
     97 
     98   i = 0;
     99   local_list = *app_list;
    100   if (*app_list != NULL) {
    101     for ( ; *local_list != NULL ; i++, local_list++) {
    102       if (*local_list == app_con)
    103 	return (False);
    104     }
    105   }
    106 
    107   *app_list = (XtAppContext *)  XtRealloc((char *)(*app_list),
    108 					  sizeof(XtAppContext *) * (i + 2) );
    109   (*app_list)[i++] = app_con;
    110   (*app_list)[i] = NULL;
    111 
    112   return (True);
    113 }
    114 
    115