/**********************************************************************
* %FUNCTION: DoPendingChanges
* %ARGUMENTS:
* es -- an event selector
* %RETURNS:
* Nothing
* %DESCRIPTION:
* Makes all pending insertions and deletions happen.
***********************************************************************/
void
DoPendingChanges(EventSelector *es)
{
EventHandler *cur, *prev, *next;
es->opsPending = 0;
/* If selector is to be deleted, do it and skip everything else */
if (es->destroyPending) {
DestroySelector(es);
return;
}
/* Do deletions */
cur = es->handlers;
prev = NULL;
while(cur) {
if (!(cur->flags & EVENT_FLAG_DELETED)) {
prev = cur;
cur = cur->next;
continue;
}
/* Unlink from list */
if (prev) {
prev->next = cur->next;
} else {
es->handlers = cur->next;
}
next = cur->next;
DestroyHandler(cur);
cur = next;
}
}
/**********************************************************************
* %FUNCTION: Event_DelHandler
* %ARGUMENTS:
* es -- event selector
* eh -- event handler
* %RETURNS:
* 0 if OK, non-zero if there is an error
* %DESCRIPTION:
* Deletes the event handler eh
***********************************************************************/
int
Event_DelHandler(EventSelector *es,
EventHandler *eh)
{
/* Scan the handlers list */
EventHandler *cur, *prev;
EVENT_DEBUG(("Event_DelHandler(es=%p, eh=%p)\n", es, eh));
for (cur=es->handlers, prev=NULL; cur; prev=cur, cur=cur->next) {
if (cur == eh) {
if (es->nestLevel) {
eh->flags |= EVENT_FLAG_DELETED;
es->opsPending = 1;
return 0;
} else {
if (prev) prev->next = cur->next;
else es->handlers = cur->next;
DestroyHandler(cur);
return 0;
}
}
}
/* Handler not found */
return 1;
}
/*--------------------------------------------------------------
* ROUTINE NAME -
*---------------------------------------------------------------
* FUNCTION:
*
* INPUT: None
* OUTPUT: None
* RETURN: None
* NOTE:
*---------------------------------------------------------------*/
int
l2tp_DelHandler(L2tpSelector *es,
L2tpHandler *eh)
{
/* Scan the handlers list */
L2tpHandler *cur, *prev;
for (cur=es->handlers, prev=NULL; cur; prev=cur, cur=cur->next)
{
if (cur == eh)
{
if (es->nestLevel)
{
eh->flags |= EVENT_FLAG_DELETED;
es->opsPending = 1;
return 0;
}
else
{
if (prev) prev->next = cur->next;
else es->handlers = cur->next;
DestroyHandler(cur);
return 0;
}
}
}
/* Handler not found */
return 1;
}
/**********************************************************************
* %FUNCTION: DestroySelector
* %ARGUMENTS:
* es -- an event selector
* %RETURNS:
* Nothing
* %DESCRIPTION:
* Destroys selector and all associated handles.
***********************************************************************/
void
DestroySelector(EventSelector *es)
{
EventHandler *cur, *next;
for (cur=es->handlers; cur; cur=next) {
next = cur->next;
DestroyHandler(cur);
}
free(es);
}
