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This commit is contained in:
Justin Ethier 2015-10-14 23:01:58 -04:00
parent 3a68ce5a32
commit 2db7a2e86c
2 changed files with 22 additions and 1 deletions
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2
include/cyclone/types.h
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@ -68,7 +68,7 @@ gc_heap *gc_heap_last(gc_heap *h);
size_t gc_heap_total_size(gc_heap *h); size_t gc_heap_total_size(gc_heap *h);
void gc_mark(gc_heap *h, object obj); void gc_mark(gc_heap *h, object obj);
size_t gc_sweep(gc_heap *h, size_t *sum_freed_ptr); size_t gc_sweep(gc_heap *h, size_t *sum_freed_ptr);
//void gc_collect(gc_heap *h, size_t *sum_freed) void gc_collect(gc_heap *h, size_t *sum_freed);
/* GC debugging flags */ /* GC debugging flags */
//#define DEBUG_GC 0 //#define DEBUG_GC 0

21
runtime.c
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@ -2345,6 +2345,27 @@ void Cyc_apply_from_buf(int argc, object prim, object *buf) {
// longjmp(jmp_main,1); /* Return globals gc_cont, gc_ans. */ // longjmp(jmp_main,1); /* Return globals gc_cont, gc_ans. */
//} //}
// NEW GC algorithm
void gc_collect(gc_heap *h, size_t *sum_freed)
{
printf("(heap: %p size: %d)\n", h, (unsigned int)gc_heap_total_size(h));
// Mark global variables
gc_mark(h, Cyc_global_variables); /* Internal global used by the runtime */
{
list l = global_table;
for(; !nullp(l); l = cdr(l)){
cvar_type *c = (cvar_type *)car(l);
gc_mark(h, *(c->pvar)); // Mark global, not the pvar
}
}
// TODO: what else to mark? gc_mark(
// conservative mark?
// weak refs?
// finalize?
gc_sweep(h, sum_freed);
// debug print free stats
// return value from sweep??
}
void GC(cont,ans,num_ans) closure cont; object *ans; int num_ans; void GC(cont,ans,num_ans) closure cont; object *ans; int num_ans;
// TODO: take 'live' objects from the stack and allocate them on the heap // TODO: take 'live' objects from the stack and allocate them on the heap
/* /*