mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-11-30 08:09:04 +00:00
60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/* Copyright Massachusetts Institute of Technology 1985 */
|
|
|
|
#include "copyright.h"
|
|
|
|
|
|
#include <X11/Xlib.h>
|
|
#include "X10.h"
|
|
struct qelem {
|
|
struct qelem *q_forw;
|
|
struct qelem *q_back;
|
|
char q_data[1];
|
|
};
|
|
void emacs_remque(struct qelem*);
|
|
|
|
/*
|
|
* XDeleteAssoc - Delete an association in an XAssocTable keyed on
|
|
* an XId. An association may be removed only once. Redundant
|
|
* deletes are meaningless (but cause no problems).
|
|
*/
|
|
void
|
|
XDeleteAssoc(register Display *dpy, register XAssocTable *table, register XID x_id)
|
|
{
|
|
int hash;
|
|
register XAssoc *bucket;
|
|
register XAssoc *Entry;
|
|
|
|
/* Hash the XId to get the bucket number. */
|
|
hash = x_id & (table->size - 1);
|
|
/* Look up the bucket to get the entries in that bucket. */
|
|
bucket = &table->buckets[hash];
|
|
/* Get the first entry in the bucket. */
|
|
Entry = bucket->next;
|
|
|
|
/* Scan through the entries in the bucket for the right XId. */
|
|
for (; Entry != bucket; Entry = Entry->next) {
|
|
if (Entry->x_id == x_id) {
|
|
/* We have the right XId. */
|
|
if (Entry->display == dpy) {
|
|
/* We have the right display. */
|
|
/* We have the right entry! */
|
|
/* Remove it from the queue and */
|
|
/* free the entry. */
|
|
emacs_remque((struct qelem *)Entry);
|
|
free((char *)Entry);
|
|
return;
|
|
}
|
|
/* Oops, identical XId's on different displays! */
|
|
continue;
|
|
}
|
|
if (Entry->x_id > x_id) {
|
|
/* We have gone past where it should be. */
|
|
/* It is apparently not in the table. */
|
|
return;
|
|
}
|
|
}
|
|
/* It is apparently not in the table. */
|
|
return;
|
|
}
|
|
|