// Initialize the heap; fetch memory using alloc.
void
runtime·MHeap_Init(MHeap *h, void *(*alloc)(uintptr))
{
uint32 i;
runtime·FixAlloc_Init(&h->spanalloc, sizeof(MSpan), alloc, RecordSpan, h);
runtime·FixAlloc_Init(&h->cachealloc, sizeof(MCache), alloc, nil, nil);
// h->mapcache needs no init
for(i=0; i<nelem(h->free); i++)
runtime·MSpanList_Init(&h->free[i]);
runtime·MSpanList_Init(&h->large);
for(i=0; i<nelem(h->central); i++)
runtime·MCentral_Init(&h->central[i], i);
}
// Initialize the heap; fetch memory using alloc.
void
runtime·MHeap_Init(MHeap *h)
{
uint32 i;
runtime·FixAlloc_Init(&h->spanalloc, sizeof(MSpan), RecordSpan, h, &mstats.mspan_sys);
runtime·FixAlloc_Init(&h->cachealloc, sizeof(MCache), nil, nil, &mstats.mcache_sys);
runtime·FixAlloc_Init(&h->specialfinalizeralloc, sizeof(SpecialFinalizer), nil, nil, &mstats.other_sys);
runtime·FixAlloc_Init(&h->specialprofilealloc, sizeof(SpecialProfile), nil, nil, &mstats.other_sys);
// h->mapcache needs no init
for(i=0; i<nelem(h->free); i++) {
runtime·MSpanList_Init(&h->free[i]);
runtime·MSpanList_Init(&h->busy[i]);
}
runtime·MSpanList_Init(&h->freelarge);
runtime·MSpanList_Init(&h->busylarge);
for(i=0; i<nelem(h->central); i++)
runtime·MCentral_Init(&h->central[i].mcentral, i);
}
static void
mcommoninit(M *m)
{
m->id = runtime·sched.mcount++;
m->fastrand = 0x49f6428aUL + m->id + runtime·cputicks();
m->stackalloc = runtime·malloc(sizeof(*m->stackalloc));
runtime·FixAlloc_Init(m->stackalloc, FixedStack, runtime·SysAlloc, nil, nil);
if(m->mcache == nil)
m->mcache = runtime·allocmcache();
runtime·callers(1, m->createstack, nelem(m->createstack));
// Add to runtime·allm so garbage collector doesn't free m
// when it is just in a register or thread-local storage.
m->alllink = runtime·allm;
// runtime·NumCgoCall() iterates over allm w/o schedlock,
// so we need to publish it safely.
runtime·atomicstorep(&runtime·allm, m);
}