int XDeleteContext(Display *display, XID rid, XContext context)
{
register DB db;
register TableEntry entry, *prev;
#ifdef MOTIFBC
if (!display) db = NullDB; else
#endif
{
LockDisplay(display);
db = display->context_db;
UnlockDisplay(display);
}
if (!db)
return XCNOENT;
_XLockMutex(&db->linfo);
for (prev = &Hash(db, rid, context);
(entry = *prev);
prev = &entry->next) {
if (entry->rid == rid && entry->context == context) {
*prev = entry->next;
Xfree((char *) entry);
db->numentries--;
if (db->numentries < db->mask && db->mask > INITHASHMASK)
ResizeTable(db);
_XUnlockMutex(&db->linfo);
return 0;
}
}
_XUnlockMutex(&db->linfo);
return XCNOENT;
}
static void
cpSweep1DInsert(cpSweep1D *sweep, void *obj, cpHashValue hashid)
{
if(sweep->num == sweep->max) ResizeTable(sweep, sweep->max*2);
sweep->table[sweep->num] = MakeTableCell(sweep, obj);
sweep->num++;
}
cpSpatialIndex *
cpSweep1DInit(cpSweep1D *sweep, cpSpatialIndexBBFunc bbfunc, cpSpatialIndex *staticIndex)
{
cpSpatialIndexInit((cpSpatialIndex *)sweep, Klass(), bbfunc, staticIndex);
sweep->num = 0;
ResizeTable(sweep, 32);
return (cpSpatialIndex *)sweep;
}
int XSaveContext(
Display *display,
register XID rid,
register XContext context,
_Xconst char* data)
{
DB *pdb;
register DB db;
TableEntry *head;
register TableEntry entry;
#ifdef MOTIFBC
if (!display) {
pdb = &NullDB;
db = *pdb;
} else
#endif
{
LockDisplay(display);
pdb = &display->context_db;
db = *pdb;
UnlockDisplay(display);
}
if (!db) {
db = Xmalloc(sizeof(DBRec));
if (!db)
return XCNOMEM;
db->mask = INITHASHMASK;
db->table = Xcalloc(db->mask + 1, sizeof(TableEntry));
if (!db->table) {
Xfree((char *)db);
return XCNOMEM;
}
db->numentries = 0;
_XCreateMutex(&db->linfo);
#ifdef MOTIFBC
if (!display) *pdb = db; else
#endif
{
LockDisplay(display);
*pdb = db;
display->free_funcs->context_db = _XFreeContextDB;
UnlockDisplay(display);
}
}
_XLockMutex(&db->linfo);
head = &Hash(db, rid, context);
_XUnlockMutex(&db->linfo);
for (entry = *head; entry; entry = entry->next) {
if (entry->rid == rid && entry->context == context) {
entry->data = (XPointer)data;
return 0;
}
}
entry = Xmalloc(sizeof(TableEntryRec));
if (!entry)
return XCNOMEM;
entry->rid = rid;
entry->context = context;
entry->data = (XPointer)data;
entry->next = *head;
*head = entry;
_XLockMutex(&db->linfo);
db->numentries++;
if (db->numentries > (db->mask << 2))
ResizeTable(db);
_XUnlockMutex(&db->linfo);
return 0;
}
