bool
runtime·addfinalizer(void *p, void (*f)(void*), int32 nret)
{
Fintab *tab;
byte *base;
if(debug) {
if(!runtime·mlookup(p, &base, nil, nil) || p != base)
runtime·throw("addfinalizer on invalid pointer");
}
tab = TAB(p);
runtime·lock(tab);
if(f == nil) {
lookfintab(tab, p, true, nil);
runtime·unlock(tab);
return true;
}
if(lookfintab(tab, p, false, nil)) {
runtime·unlock(tab);
return false;
}
if(tab->nkey >= tab->max/2+tab->max/4) {
// keep table at most 3/4 full:
// allocate new table and rehash.
resizefintab(tab);
}
addfintab(tab, p, f, nret);
runtime·setblockspecial(p, true);
runtime·unlock(tab);
return true;
}
runtime·mallocgc ( uintptr size , uint32 flag , int32 dogc , int32 zeroed )
{
int32 sizeclass , rate;
MCache *c;
uintptr npages;
MSpan *s;
void *v;
#line 2080 "C:\Go\src\pkg\runtime\malloc.goc"
if ( runtime·gcwaiting && g != m->g0 && m->locks == 0 )
runtime·gosched ( ) ;
if ( m->mallocing )
runtime·throw ( "malloc/free - deadlock" ) ;
m->mallocing = 1;
if ( size == 0 )
size = 1;
#line 2088 "C:\Go\src\pkg\runtime\malloc.goc"
c = m->mcache;
c->local_nmalloc++;
if ( size <= MaxSmallSize ) {
#line 2092 "C:\Go\src\pkg\runtime\malloc.goc"
sizeclass = runtime·SizeToClass ( size ) ;
size = runtime·class_to_size[sizeclass];
v = runtime·MCache_Alloc ( c , sizeclass , size , zeroed ) ;
if ( v == nil )
runtime·throw ( "out of memory" ) ;
c->local_alloc += size;
c->local_total_alloc += size;
c->local_by_size[sizeclass].nmalloc++;
} else {
#line 2104 "C:\Go\src\pkg\runtime\malloc.goc"
npages = size >> PageShift;
if ( ( size & PageMask ) != 0 )
npages++;
s = runtime·MHeap_Alloc ( &runtime·mheap , npages , 0 , 1 ) ;
if ( s == nil )
runtime·throw ( "out of memory" ) ;
size = npages<<PageShift;
c->local_alloc += size;
c->local_total_alloc += size;
v = ( void* ) ( s->start << PageShift ) ;
#line 2116 "C:\Go\src\pkg\runtime\malloc.goc"
runtime·markspan ( v , 0 , 0 , true ) ;
}
if ( ! ( flag & FlagNoGC ) )
runtime·markallocated ( v , size , ( flag&FlagNoPointers ) != 0 ) ;
#line 2121 "C:\Go\src\pkg\runtime\malloc.goc"
m->mallocing = 0;
#line 2123 "C:\Go\src\pkg\runtime\malloc.goc"
if ( ! ( flag & FlagNoProfiling ) && ( rate = runtime·MemProfileRate ) > 0 ) {
if ( size >= rate )
goto profile;
if ( m->mcache->next_sample > size )
m->mcache->next_sample -= size;
else {
#line 2131 "C:\Go\src\pkg\runtime\malloc.goc"
if ( rate > 0x3fffffff )
rate = 0x3fffffff;
m->mcache->next_sample = runtime·fastrand1 ( ) % ( 2*rate ) ;
profile:
runtime·setblockspecial ( v , true ) ;
runtime·MProf_Malloc ( v , size ) ;
}
}
#line 2140 "C:\Go\src\pkg\runtime\malloc.goc"
if ( dogc && mstats.heap_alloc >= mstats.next_gc )
runtime·gc ( 0 ) ;
return v;
}