void
runtime_freemcache(MCache *c)
{
runtime_MCache_ReleaseAll(c);
runtime_lock(&runtime_mheap);
runtime_purgecachedstats(c);
runtime_FixAlloc_Free(&runtime_mheap.cachealloc, c);
runtime_unlock(&runtime_mheap);
}
// Allocate a new span of npage pages from the heap
// and record its size class in the HeapMap and HeapMapCache.
MSpan*
runtime_MHeap_Alloc(MHeap *h, uintptr npage, int32 sizeclass, int32 acct)
{
MSpan *s;
runtime_lock(h);
runtime_purgecachedstats(m);
s = MHeap_AllocLocked(h, npage, sizeclass);
if(s != nil) {
mstats.heap_inuse += npage<<PageShift;
if(acct) {
mstats.heap_objects++;
mstats.heap_alloc += npage<<PageShift;
}
}
runtime_unlock(h);
return s;
}
// Allocate a new span of npage pages from the heap
// and record its size class in the HeapMap and HeapMapCache.
MSpan*
runtime_MHeap_Alloc(MHeap *h, uintptr npage, int32 sizeclass, int32 acct, int32 zeroed)
{
MSpan *s;
runtime_lock(h);
runtime_purgecachedstats(runtime_m()->mcache);
s = MHeap_AllocLocked(h, npage, sizeclass);
if(s != nil) {
mstats.heap_inuse += npage<<PageShift;
if(acct) {
mstats.heap_objects++;
mstats.heap_alloc += npage<<PageShift;
}
}
runtime_unlock(h);
if(s != nil && *(uintptr*)(s->start<<PageShift) != 0 && zeroed)
runtime_memclr((byte*)(s->start<<PageShift), s->npages<<PageShift);
return s;
}
