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authorSverker Eriksson <[email protected]>2017-08-30 20:55:08 +0200
committerSverker Eriksson <[email protected]>2017-08-30 20:55:08 +0200
commit7c67bbddb53c364086f66260701bc54a61c9659c (patch)
tree92ab0d4b91d5e2f6e7a3f9d61ea25089e8a71fe0 /erts/emulator/beam/erl_gc.h
parent97dc5e7f396129222419811c173edc7fa767b0f8 (diff)
parent3b7a6ffddc819bf305353a593904cea9e932e7dc (diff)
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Merge tag 'OTP-19.0' into sverker/19/binary_to_atom-utf8-crash/ERL-474/OTP-14590
Diffstat (limited to 'erts/emulator/beam/erl_gc.h')
-rw-r--r--erts/emulator/beam/erl_gc.h136
1 files changed, 100 insertions, 36 deletions
diff --git a/erts/emulator/beam/erl_gc.h b/erts/emulator/beam/erl_gc.h
index 1801df359a..54ea9ca3c0 100644
--- a/erts/emulator/beam/erl_gc.h
+++ b/erts/emulator/beam/erl_gc.h
@@ -1,18 +1,19 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 2007-2011. All Rights Reserved.
+ * Copyright Ericsson AB 2007-2016. All Rights Reserved.
*
- * The contents of this file are subject to the Erlang Public License,
- * Version 1.1, (the "License"); you may not use this file except in
- * compliance with the License. You should have received a copy of the
- * Erlang Public License along with this software. If not, it can be
- * retrieved online at http://www.erlang.org/.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
*
- * Software distributed under the License is distributed on an "AS IS"
- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- * the License for the specific language governing rights and limitations
- * under the License.
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
*
* %CopyrightEnd%
*/
@@ -20,8 +21,12 @@
#ifndef __ERL_GC_H__
#define __ERL_GC_H__
+#if defined(ERL_WANT_GC_INTERNALS__) || defined(ERTS_DO_INCL_GLB_INLINE_FUNC_DEF)
+
/* GC declarations shared by beam/erl_gc.c and hipe/hipe_gc.c */
+#include "erl_map.h"
+
#if defined(DEBUG) && !ERTS_GLB_INLINE_INCL_FUNC_DEF
# define HARDDEBUG 1
#endif
@@ -42,38 +47,40 @@ do { \
HTOP += 2; /* update tospace htop */ \
} while(0)
-#define MOVE_BOXED(PTR,HDR,HTOP,ORIG) \
-do { \
- Eterm gval; \
- Sint nelts; \
- \
- ASSERT(is_header(HDR)); \
- gval = make_boxed(HTOP); \
- *ORIG = gval; \
- *HTOP++ = HDR; \
- *PTR++ = gval; \
- nelts = header_arity(HDR); \
- switch ((HDR) & _HEADER_SUBTAG_MASK) { \
- case SUB_BINARY_SUBTAG: nelts++; break; \
- case FUN_SUBTAG: nelts+=((ErlFunThing*)(PTR-1))->num_free+1; break; \
- } \
- while (nelts--) \
- *HTOP++ = *PTR++; \
+#define MOVE_BOXED(PTR,HDR,HTOP,ORIG) \
+do { \
+ Eterm gval; \
+ Sint nelts; \
+ \
+ ASSERT(is_header(HDR)); \
+ nelts = header_arity(HDR); \
+ switch ((HDR) & _HEADER_SUBTAG_MASK) { \
+ case SUB_BINARY_SUBTAG: nelts++; break; \
+ case MAP_SUBTAG: \
+ if (is_flatmap_header(HDR)) nelts+=flatmap_get_size(PTR) + 1; \
+ else nelts += hashmap_bitcount(MAP_HEADER_VAL(HDR)); \
+ break; \
+ case FUN_SUBTAG: nelts+=((ErlFunThing*)(PTR))->num_free+1; break; \
+ } \
+ gval = make_boxed(HTOP); \
+ *ORIG = gval; \
+ *HTOP++ = HDR; \
+ *PTR++ = gval; \
+ while (nelts--) *HTOP++ = *PTR++; \
} while(0)
-#define in_area(ptr,start,nbytes) \
- ((UWord)((char*)(ptr) - (char*)(start)) < (nbytes))
-
-extern Uint erts_test_long_gc_sleep;
-
#if defined(DEBUG) || defined(ERTS_OFFHEAP_DEBUG)
int within(Eterm *ptr, Process *p);
#endif
-ERTS_GLB_INLINE Eterm follow_moved(Eterm term);
+#define ErtsInYoungGen(TPtr, Ptr, OldHeap, OldHeapSz) \
+ (!erts_is_literal((TPtr), (Ptr)) \
+ & !ErtsInArea((Ptr), (OldHeap), (OldHeapSz)))
+
+ERTS_GLB_INLINE Eterm follow_moved(Eterm term, Eterm xptr_tag);
#if ERTS_GLB_INLINE_INCL_FUNC_DEF
-ERTS_GLB_INLINE Eterm follow_moved(Eterm term)
+ERTS_GLB_INLINE Eterm follow_moved(Eterm term, Eterm xptr_tag)
{
Eterm* ptr;
switch (primary_tag(term)) {
@@ -81,17 +88,74 @@ ERTS_GLB_INLINE Eterm follow_moved(Eterm term)
break;
case TAG_PRIMARY_BOXED:
ptr = boxed_val(term);
- if (IS_MOVED_BOXED(*ptr)) term = *ptr;
+ if (IS_MOVED_BOXED(*ptr)) term = (*ptr) | xptr_tag;
break;
case TAG_PRIMARY_LIST:
ptr = list_val(term);
- if (IS_MOVED_CONS(ptr[0])) term = ptr[1];
+ if (IS_MOVED_CONS(ptr[0])) term = (ptr[1]) | xptr_tag;
break;
default:
ASSERT(!"strange tag in follow_moved");
}
return term;
}
+
#endif
+#endif /* ERL_GC_C__ || HIPE_GC_C__ */
+
+/*
+ * Global exported
+ */
+
+#define ERTS_IS_GC_DESIRED_INTERNAL(Proc, HTop, STop) \
+ ((((STop) - (HTop) < (Proc)->mbuf_sz)) \
+ | ((Proc)->off_heap.overhead > (Proc)->bin_vheap_sz) \
+ | !!((Proc)->flags & F_FORCE_GC))
+
+#define ERTS_IS_GC_DESIRED(Proc) \
+ ERTS_IS_GC_DESIRED_INTERNAL((Proc), (Proc)->htop, (Proc)->stop)
+
+#define ERTS_FORCE_GC_INTERNAL(Proc, FCalls) \
+ do { \
+ (Proc)->flags |= F_FORCE_GC; \
+ ERTS_VBUMP_ALL_REDS_INTERNAL((Proc), (FCalls)); \
+ } while (0)
+
+#define ERTS_FORCE_GC(Proc) \
+ ERTS_FORCE_GC_INTERNAL((Proc), (Proc)->fcalls)
+
+extern Uint erts_test_long_gc_sleep;
+
+typedef struct {
+ Uint64 reclaimed;
+ Uint64 garbage_cols;
+} ErtsGCInfo;
+
+#define ERTS_PROCESS_GC_INFO_MAX_TERMS (11) /* number of elements in process_gc_info*/
+#define ERTS_PROCESS_GC_INFO_MAX_SIZE \
+ (ERTS_PROCESS_GC_INFO_MAX_TERMS * (2/*cons*/ + 3/*2-tuple*/ + BIG_UINT_HEAP_SIZE))
+Eterm erts_process_gc_info(struct process*, Uint *, Eterm **, Uint, Uint);
+
+void erts_gc_info(ErtsGCInfo *gcip);
+void erts_init_gc(void);
+int erts_garbage_collect_nobump(struct process*, int, Eterm*, int, int);
+void erts_garbage_collect(struct process*, int, Eterm*, int);
+void erts_garbage_collect_hibernate(struct process* p);
+Eterm erts_gc_after_bif_call_lhf(struct process* p, ErlHeapFragment *live_hf_end,
+ Eterm result, Eterm* regs, Uint arity);
+Eterm erts_gc_after_bif_call(struct process* p, Eterm result, Eterm* regs, Uint arity);
+void erts_garbage_collect_literals(struct process* p, Eterm* literals,
+ Uint lit_size,
+ struct erl_off_heap_header* oh);
+Uint erts_next_heap_size(Uint, Uint);
+Eterm erts_heap_sizes(struct process* p);
+
+void erts_offset_off_heap(struct erl_off_heap*, Sint, Eterm*, Eterm*);
+void erts_offset_heap_ptr(Eterm*, Uint, Sint, Eterm*, Eterm*);
+void erts_offset_heap(Eterm*, Uint, Sint, Eterm*, Eterm*);
+void erts_free_heap_frags(struct process* p);
+Eterm erts_max_heap_size_map(Sint, Uint, Eterm **, Uint *);
+int erts_max_heap_size(Eterm, Uint *, Uint *);
+
#endif /* __ERL_GC_H__ */