/* FIXME:: the collection should be seperated from the alloation */
void *wspace_alloc(unsigned size, Allocator *allocator)
{
void *p_obj = NULL;
/*
if( get_hyper_free_chunk_list()->head == NULL )
INFO2("gc.wspace", "[BEFORE ALLOC]hyper free chunk is EMPTY!!");
*/
if(gc_is_specify_con_gc())
gc_sched_collection(allocator->gc, GC_CAUSE_CONCURRENT_GC);
/* First, try to allocate object from TLB (thread local chunk) */
p_obj = wspace_try_alloc(size, allocator);
if(p_obj){
((Mutator*)allocator)->new_obj_size += size;
/*
if( get_hyper_free_chunk_list()->head == NULL )
INFO2("gc.wspace", "[AFTER FIRST ALLOC]hyper free chunk is EMPTY!!");
*/
return p_obj;
}
if(allocator->gc->in_collection) return NULL;
vm_gc_lock_enum();
/* after holding lock, try if other thread collected already */
p_obj = wspace_try_alloc(size, allocator);
if(p_obj){
vm_gc_unlock_enum();
((Mutator*)allocator)->new_obj_size += size;
/*
if( get_hyper_free_chunk_list()->head == NULL )
INFO2("gc.wspace", "[AFTER SECOND ALLOC]hyper free chunk is EMPTY!!");
*/
return p_obj;
}
INFO2("gc.con.info", "[Exhausted Cause] Allocation size is :" << size << " bytes");
GC *gc = allocator->gc;
/*
gc->cause = GC_CAUSE_MOS_IS_FULL;
if(gc_is_specify_con_gc())
gc_relaim_heap_con_mode(gc);
else*/
gc_reclaim_heap(gc, GC_CAUSE_MOS_IS_FULL);
vm_gc_unlock_enum();
#ifdef SSPACE_CHUNK_INFO
printf("Failure size: %x\n", size);
#endif
p_obj = wspace_try_alloc(size, allocator);
/*
if( get_hyper_free_chunk_list()->head == NULL )
INFO2("gc.wspace", "[AFTER COLLECTION ALLOC]hyper free chunk is EMPTY!!");
*/
if(p_obj) ((Mutator*)allocator)->new_obj_size += size;
return p_obj;
}
void* lspace_alloc(unsigned size, Allocator *allocator)
{
unsigned int try_count = 0;
void* p_result = NULL;
POINTER_SIZE_INT alloc_size = ALIGN_UP_TO_KILO(size);
Lspace* lspace = (Lspace*)gc_get_los((GC_Gen*)allocator->gc);
Free_Area_Pool* pool = lspace->free_pool;
while( try_count < 2 ){
if(p_result = lspace_try_alloc(lspace, alloc_size))
return p_result;
/*Failled, no adequate area found in all lists, so GC at first, then get another try.*/
if(try_count == 0){
vm_gc_lock_enum();
/*Check again if there is space for the obj, for maybe other mutator
threads issus a GC in the time gap of waiting the gc lock*/
if(p_result = lspace_try_alloc(lspace, alloc_size)){
vm_gc_unlock_enum();
return p_result;
}
lspace->failure_size = round_up_to_size(alloc_size, KB);
gc_reclaim_heap(allocator->gc, GC_CAUSE_LOS_IS_FULL);
if(lspace->success_ptr){
p_result = lspace->success_ptr;
lspace->success_ptr = NULL;
vm_gc_unlock_enum();
return p_result;
}
vm_gc_unlock_enum();
try_count ++;
}else{
try_count ++;
}
}
return NULL;
}