1 /* -----------------------------------------------------------------------------
3 * (c) The GHC Team 1998-2008
5 * Generational garbage collector
7 * Documentation on the architecture of the Garbage Collector can be
8 * found in the online commentary:
10 * http://hackage.haskell.org/trac/ghc/wiki/Commentary/Rts/Storage/GC
12 * ---------------------------------------------------------------------------*/
19 void GarbageCollect(rtsBool force_major_gc, nat gc_type, Capability *cap);
21 typedef void (*evac_fn)(void *user, StgClosure **root);
23 StgClosure * isAlive ( StgClosure *p );
24 void markCAFs ( evac_fn evac, void *user );
27 extern rtsBool major_gc;
29 extern bdescr *mark_stack_bdescr;
30 extern StgPtr *mark_stack;
31 extern StgPtr *mark_sp;
32 extern StgPtr *mark_splim;
34 extern rtsBool mark_stack_overflowed;
35 extern bdescr *oldgen_scan_bd;
36 extern StgPtr oldgen_scan;
40 extern rtsBool work_stealing;
43 extern nat mutlist_MUTVARS, mutlist_MUTARRS, mutlist_MVARS, mutlist_OTHERS;
46 #if defined(PROF_SPIN) && defined(THREADED_RTS)
47 extern StgWord64 whitehole_spin;
50 void gcWorkerThread (Capability *cap);
51 void initGcThreads (void);
52 void freeGcThreads (void);
54 #if defined(THREADED_RTS)
55 void waitForGcThreads (Capability *cap);
56 void releaseGCThreads (Capability *cap);
59 #define WORK_UNIT_WORDS 128