static void
bhv_setTag(struct Behavior *bhv)
{
if (bhv->Object.Any._id) { // generics case
struct Generic *gen = CAST(struct Generic*, bhv);
if (bhv->id)
cos_abort("generic '%s' at (%s,%d) has already an id",
gen_name(gen), gen_file(gen), gen_line(gen));
if ( (bhv->Object.Any._id & COS_ID_TAGMSK) )
cos_abort("generic '%s' at (%s,%d) has invalid initialization",
gen_name(gen), gen_file(gen), gen_line(gen));
bhv->id = bhv->Object.Any._id | bhv_tag();
bhv->Object.Any._id = 0;
} else { // classes case
struct cos_method_cache2*
cos_method_cache2_init(void)
{
struct cos_method_cache2 *cache;
pthread_once(&cos_method_cache2_key_once, make_key);
cos_method_cache2_key_init = 1;
if (!(cache = malloc(sizeof *cache)))
cos_abort("out of memory while creating dispatcher cache2");
cache->slot = &cache_empty;
cache->msk = 0;
cache->mis = 0;
cache->mis2 = 0;
if ( pthread_setspecific(cos_method_cache2_key, cache) )
cos_abort("unable to initialize dispatcher cache2");
return cache;
}
static inline U32
bhv_tag(void)
{
static U32 x = 1;
x = x * 2621124293u + 1; // group generator for any \frac{\setN}{2^k\setN}, k=1..32
if (x == COS_ID_TENMEGA) // keep the rest for dynamic behaviors (dynamic classes)
cos_abort("too many static behaviors (>10000000)");
return x & COS_ID_TAGMSK; // use only the 27 lower bits (134217727 ids)
}
static void
enlarge_cache(void)
{
struct cos_method_cache2 *cache = cos_method_cache2();
U32 i, n;
n = cache->msk ? (cache->msk+1)*2 : 512;
cos_method_clearCache2();
cache->slot = malloc(n * sizeof *cache->slot);
if (!cache->slot)
cos_abort("method2_lookup: out of memory");
for (i = 0; i < n; i++)
cache->slot[i] = &sentinel;
cache->msk = n-1;
}
static void
enlarge_slot(struct cos_method_slot1 **slot)
{
U32 i, n = first_cell(slot);
*slot = realloc(n ? *slot : 0, (n+1) * sizeof **slot);
if (!*slot)
cos_abort("method1_lookup: out of memory");
for (i = 0; i < (n+1); i++) {
(*slot)[i].nxt = *slot+i+1; // Ok: see C99 6.5.6-8
(*slot)[i].fct = init;
(*slot)[i].idg = 0;
(*slot)[i].id1 = 0;
}
(*slot)[n].nxt = &sentinel;
}
static void
make_key(void)
{
if ( pthread_key_create(&cos_method_cache2_key, free) )
cos_abort("unable to initialize dispatcher cache2");
}