aboutsummaryrefslogtreecommitdiffstats
path: root/erts/emulator/beam/copy.c
diff options
context:
space:
mode:
Diffstat (limited to 'erts/emulator/beam/copy.c')
-rw-r--r--erts/emulator/beam/copy.c433
1 files changed, 0 insertions, 433 deletions
diff --git a/erts/emulator/beam/copy.c b/erts/emulator/beam/copy.c
index d7345c2f54..36eda04de2 100644
--- a/erts/emulator/beam/copy.c
+++ b/erts/emulator/beam/copy.c
@@ -26,30 +26,13 @@
#include "global.h"
#include "erl_process.h"
#include "erl_gc.h"
-#include "erl_nmgc.h"
#include "big.h"
#include "erl_binary.h"
#include "erl_bits.h"
#include "dtrace-wrapper.h"
-#ifdef HYBRID
-MA_STACK_DECLARE(src);
-MA_STACK_DECLARE(dst);
-MA_STACK_DECLARE(offset);
-#endif
-
static void move_one_frag(Eterm** hpp, Eterm* src, Uint src_sz, ErlOffHeap*);
-void
-init_copy(void)
-{
-#ifdef HYBRID
- MA_STACK_ALLOC(src);
- MA_STACK_ALLOC(dst);
- MA_STACK_ALLOC(offset);
-#endif
-}
-
/*
* Copy object "obj" to process p.
*/
@@ -432,12 +415,10 @@ Eterm copy_struct(Eterm obj, Uint sz, Eterm** hpp, ErlOffHeap* off_heap)
while (i--) {
*htop++ = *objp++;
}
-#ifndef HYBRID /* FIND ME! */
funp = (ErlFunThing *) tp;
funp->next = off_heap->first;
off_heap->first = (struct erl_off_heap_header*) funp;
erts_refc_inc(&funp->fe->refc, 2);
-#endif
*argp = make_fun_rel(tp, dst_base);
}
break;
@@ -500,420 +481,6 @@ Eterm copy_struct(Eterm obj, Uint sz, Eterm** hpp, ErlOffHeap* off_heap)
return res;
}
-#ifdef HYBRID
-
-#ifdef BM_MESSAGE_SIZES
-# define BM_ADD(var,val) (var) += (val);
-#else
-# define BM_ADD(var,val)
-#endif
-
-#ifdef DEBUG
-# define CLEARMEM(PTR,SIZE) memset(PTR,0,SIZE*sizeof(Eterm))
-#else
-# define CLEARMEM(PTR,SIZE)
-#endif
-
-#ifdef INCREMENTAL
-#define GlobalAlloc(p, need, hp) \
-do { \
- Uint n = (need); \
- BM_ADD(words_copied,n); \
- BM_SWAP_TIMER(copy,system); \
- /* If a new collection cycle is started during copy, the message * \
- * will end up in the old generation and all allocations * \
- * thereafter must go directly into the old generation. */ \
- if (alloc_old) { \
- erts_incremental_gc((p),n,&dest,1); \
- (hp) = erts_inc_alloc(n); \
- } else { \
- (hp) = IncAlloc((p),n,&dest,1); \
- if (ma_gc_flags & GC_CYCLE_START) { \
- alloc_old = 1; \
- global_htop = global_heap; \
- (hp) = erts_inc_alloc(n); \
- } \
- } \
- CLEARMEM((hp),(n)); \
- BM_SWAP_TIMER(system,copy); \
-} while(0)
-
-#else /* no INCREMELNTAL */
-
-#define GlobalAlloc(p, need, hp) \
-do { \
- Uint n = (need); \
- total_need += n; \
- if (total_need >= global_heap_sz) \
- erl_exit(ERTS_ABORT_EXIT, "Copying a message (%d words) larger than the nursery simply won't work...\n", total_need); \
- if (global_hend - n < global_htop) { \
- BM_SWAP_TIMER(copy,system); \
- erts_global_garbage_collect((p),total_need,NULL,0); \
- BM_SWAP_TIMER(system,copy); \
- total_need = 0; \
- ma_src_top = 0; \
- ma_dst_top = 0; \
- ma_offset_top = 0; \
- goto copy_start; \
- } \
- (hp) = global_htop; \
- global_htop += n; \
- BM_ADD(words_copied,n); \
-} while(0)
-#endif /* INCREMENTAL */
-
-/* Copy a message to the message area. */
-Eterm copy_struct_lazy(Process *from, Eterm orig, Uint offs)
-{
- Eterm obj;
- Eterm dest;
-#ifdef INCREMENTAL
- int alloc_old = 0;
-#else
- int total_need = 0;
-#endif
-
- VERBOSE(DEBUG_MESSAGES,
- ("COPY START; %T is sending a message @ 0x%016x\n%T\n",
- from->id, orig, orig));
-
-#ifndef INCREMENTAL
- copy_start:
-#endif
- MA_STACK_PUSH(src,orig);
- MA_STACK_PUSH(dst,&dest);
- MA_STACK_PUSH(offset,offs);
-
- while (ma_src_top > 0) {
- obj = MA_STACK_POP(src);
-
- /* copy_struct_lazy should never be called with something that
- * do not need to be copied. Within the loop, nothing that do
- * not need copying should be placed in the src-stack.
- */
- ASSERT(!NO_COPY(obj));
-
- switch (primary_tag(obj)) {
- case TAG_PRIMARY_LIST: {
- Eterm *hp;
- Eterm *objp;
-
- GlobalAlloc(from,2,hp);
- objp = list_val(obj);
-
- MA_STACK_UPDATE(dst,MA_STACK_POP(offset),make_list(hp));
- MA_STACK_POP(dst);
-
- /* TODO: Byt ordningen nedan så att CDR pushas först. */
-
- if (NO_COPY(*objp)) {
- hp[0] = *objp;
-#ifdef INCREMENTAL
- if (ptr_within(ptr_val(*objp),inc_fromspc,inc_fromend))
- INC_STORE(gray,hp,2);
-#endif
- } else {
- MA_STACK_PUSH(src,*objp);
- MA_STACK_PUSH(dst,hp);
- MA_STACK_PUSH(offset,0);
- }
-
- objp++;
-
- if (NO_COPY(*objp)) {
- hp[1] = *objp;
-#ifdef INCREMENTAL
- if (ptr_within(ptr_val(*objp),inc_fromspc,inc_fromend))
- INC_STORE(gray,hp,2);
-#endif
- }
- else {
- MA_STACK_PUSH(src,*objp);
- MA_STACK_PUSH(dst,hp);
- MA_STACK_PUSH(offset,1);
- }
- continue;
- }
-
- case TAG_PRIMARY_BOXED: {
- Eterm *objp = boxed_val(obj);
-
- switch (*objp & _TAG_HEADER_MASK) {
- case ARITYVAL_SUBTAG: {
- Uint ari = arityval(*objp);
- Uint i;
- Eterm *hp;
- GlobalAlloc(from,ari + 1,hp);
- /* A GC above might invalidate the value of objp */
- objp = boxed_val(obj);
- MA_STACK_UPDATE(dst,MA_STACK_POP(offset),make_tuple(hp));
- MA_STACK_POP(dst);
- *hp = *objp++;
- for (i = 1; i <= ari; i++) {
- switch (primary_tag(*objp)) {
- case TAG_PRIMARY_LIST:
- case TAG_PRIMARY_BOXED:
- if (NO_COPY(*objp)) {
- hp[i] = *objp;
-#ifdef INCREMENTAL
- if (ptr_within(ptr_val(*objp),
- inc_fromspc,inc_fromend))
- INC_STORE(gray,hp,BOXED_NEED(hp,*hp));
-#endif
- objp++;
- } else {
- MA_STACK_PUSH(src,*objp++);
- MA_STACK_PUSH(dst,hp);
- MA_STACK_PUSH(offset,i);
- }
- break;
- default:
- hp[i] = *objp++;
- }
- }
- continue;
- }
-
- case REFC_BINARY_SUBTAG: {
- ProcBin *pb;
- Uint i = thing_arityval(*objp) + 1;
- Eterm *hp;
- GlobalAlloc(from,i,hp);
- /* A GC above might invalidate the value of objp */
- objp = boxed_val(obj);
- MA_STACK_UPDATE(dst,MA_STACK_POP(offset),make_binary(hp));
- MA_STACK_POP(dst);
- pb = (ProcBin*) hp;
- while (i--) {
- *hp++ = *objp++;
- }
- erts_refc_inc(&pb->val->refc, 2);
- pb->next = erts_global_offheap.first;
- erts_global_offheap.first = pb;
- OH_OVERHEAD(off_heap, pb->size / sizeof(Eterm));
- continue;
- }
-
- case FUN_SUBTAG: {
- ErlFunThing *funp = (ErlFunThing*) objp;
- Uint i = thing_arityval(*objp) + 1;
- Uint j = i + 1 + funp->num_free;
- Uint k = i;
- Eterm *hp, *hp_start;
- GlobalAlloc(from,j,hp);
- /* A GC above might invalidate the value of objp */
- objp = boxed_val(obj);
- hp_start = hp;
- MA_STACK_UPDATE(dst,MA_STACK_POP(offset),make_fun(hp));
- MA_STACK_POP(dst);
- funp = (ErlFunThing*) hp;
- while (i--) {
- *hp++ = *objp++;
- }
-#ifndef HYBRID /* FIND ME! */
- funp->next = erts_global_offheap.first;
- erts_global_offheap.first = funp;
- erts_refc_inc(&funp->fe->refc, 2);
-#endif
- for (i = k; i < j; i++) {
- switch (primary_tag(*objp)) {
- case TAG_PRIMARY_LIST:
- case TAG_PRIMARY_BOXED:
- if (NO_COPY(*objp)) {
-#ifdef INCREMENTAL
- if (ptr_within(ptr_val(*objp),
- inc_fromspc,inc_fromend))
- INC_STORE(gray,hp,BOXED_NEED(hp,*hp));
-#endif
- *hp++ = *objp++;
- } else {
- MA_STACK_PUSH(src,*objp++);
- MA_STACK_PUSH(dst,hp_start);
- MA_STACK_PUSH(offset,i);
- hp++;
- }
- break;
- default:
- *hp++ = *objp++;
- }
- }
- continue;
- }
-
- case EXTERNAL_PID_SUBTAG:
- case EXTERNAL_PORT_SUBTAG:
- case EXTERNAL_REF_SUBTAG: {
- ExternalThing *etp;
- Uint i = thing_arityval(*objp) + 1;
- Eterm *hp;
- GlobalAlloc(from,i,hp);
- /* A GC above might invalidate the value of objp */
- objp = boxed_val(obj);
- MA_STACK_UPDATE(dst,MA_STACK_POP(offset),make_external(hp));
- MA_STACK_POP(dst);
- etp = (ExternalThing*) hp;
- while (i--) {
- *hp++ = *objp++;
- }
-
- etp->next = erts_global_offheap.first;
- erts_global_offheap.first = etp;
- erts_refc_inc(&etp->node->refc, 2);
- continue;
- }
-
- case SUB_BINARY_SUBTAG: {
- ErlSubBin *sb = (ErlSubBin *) objp;
- Eterm *hp;
- Eterm res_binary;
- Eterm real_bin = sb->orig;
- Uint bit_offset = sb->bitoffs;
- Uint bit_size = sb -> bitsize;
- Uint sub_offset = sb->offs;
- size_t size = sb->size;
- Uint extra_bytes;
- Uint real_size;
- Uint sub_binary_heapneed;
- if ((bit_size + bit_offset) > 8) {
- extra_bytes = 2;
- sub_binary_heapneed = ERL_SUB_BIN_SIZE;
- } else if ((bit_size + bit_offset) > 0) {
- extra_bytes = 1;
- sub_binary_heapneed = ERL_SUB_BIN_SIZE;
- } else {
- extra_bytes = 0;
- sub_binary_heapneed = 0;
- }
-
- real_size = size+extra_bytes;
- objp = binary_val(real_bin);
- if (thing_subtag(*objp) == HEAP_BINARY_SUBTAG) {
- ErlHeapBin *from_bin;
- ErlHeapBin *to_bin;
- Uint i = heap_bin_size(real_size);
- GlobalAlloc(from,i+sub_binary_heapneed,hp);
- from_bin = (ErlHeapBin *) objp;
- to_bin = (ErlHeapBin *) hp;
- to_bin->thing_word = header_heap_bin(real_size);
- to_bin->size = real_size;
- sys_memcpy(to_bin->data, ((byte *)from_bin->data) +
- sub_offset, real_size);
- res_binary = make_binary(to_bin);
- hp += i;
- } else {
- ProcBin *from_bin;
- ProcBin *to_bin;
-
- ASSERT(thing_subtag(*objp) == REFC_BINARY_SUBTAG);
- from_bin = (ProcBin *) objp;
- erts_refc_inc(&from_bin->val->refc, 2);
- GlobalAlloc(from,PROC_BIN_SIZE+sub_binary_heapneed,hp);
- to_bin = (ProcBin *) hp;
- to_bin->thing_word = HEADER_PROC_BIN;
- to_bin->size = real_size;
- to_bin->val = from_bin->val;
- to_bin->bytes = from_bin->bytes + sub_offset;
- to_bin->next = erts_global_offheap.first;
- erts_global_offheap.first = to_bin;
- OH_OVERHEAD(&erts_global_offheap, to_bin->size / sizeof(Eterm));
- res_binary=make_binary(to_bin);
- hp += PROC_BIN_SIZE;
- }
- if (extra_bytes != 0) {
- ErlSubBin* res;
- res = (ErlSubBin *) hp;
- res->thing_word = HEADER_SUB_BIN;
- res->size = size;
- res->bitsize = bit_size;
- res->bitoffs = bit_offset;
- res->offs = 0;
- res->is_writable = 0;
- res->orig = res_binary;
- res_binary = make_binary(hp);
- }
- MA_STACK_UPDATE(dst,MA_STACK_POP(offset),res_binary);
- MA_STACK_POP(dst);
- continue;
- }
-
- case BIN_MATCHSTATE_SUBTAG:
- erl_exit(ERTS_ABORT_EXIT,
- "copy_struct_lazy: matchstate term not allowed");
-
- default: {
- Uint size = thing_arityval(*objp) + 1;
- Eterm *hp;
- GlobalAlloc(from,size,hp);
- /* A GC above might invalidate the value of objp */
- objp = boxed_val(obj);
- MA_STACK_UPDATE(dst,MA_STACK_POP(offset),make_boxed(hp));
- MA_STACK_POP(dst);
- while (size--) {
- *hp++ = *objp++;
- }
- continue;
- }
- }
- continue;
- }
-
- case TAG_PRIMARY_HEADER:
- ASSERT((obj & _TAG_HEADER_MASK) == ARITYVAL_SUBTAG);
- {
- Eterm *objp = &obj;
- Uint ari = arityval(obj);
- Uint i;
- Eterm *hp;
- GlobalAlloc(from,ari + 1,hp);
- MA_STACK_UPDATE(dst,MA_STACK_POP(offset),make_tuple(hp));
- MA_STACK_POP(dst);
- *hp = *objp++;
- for (i = 1; i <= ari; i++) {
- switch (primary_tag(*objp)) {
- case TAG_PRIMARY_LIST:
- case TAG_PRIMARY_BOXED:
- if (NO_COPY(*objp)) {
-#ifdef INCREMENTAL
- if (ptr_within(ptr_val(*objp),inc_fromspc,inc_fromend))
- INC_STORE(gray,hp,ari + 1);
-#endif
- hp[i] = *objp++;
- } else {
- MA_STACK_PUSH(src,*objp++);
- MA_STACK_PUSH(dst,hp);
- MA_STACK_PUSH(offset,i);
- }
- break;
- default:
- hp[i] = *objp++;
- }
- }
- continue;
- }
-
- default:
- erl_exit(ERTS_ABORT_EXIT,
- "%s, line %d: Internal error in copy_struct_lazy: 0x%08x\n",
- __FILE__, __LINE__,obj);
- }
- }
-
- VERBOSE(DEBUG_MESSAGES,
- ("Copy allocated @ 0x%08lx:\n%T\n",
- (unsigned long)ptr_val(dest),dest));
-
- ma_gc_flags &= ~GC_CYCLE_START;
-
- ASSERT(eq(orig, dest));
- ASSERT(ma_src_top == 0);
- ASSERT(ma_dst_top == 0);
- ASSERT(ma_offset_top == 0);
- return dest;
-}
-
-#undef NO_COPY
-#endif /* HYBRID */
-
/*
* Copy a term that is guaranteed to be contained in a single
* heap block. The heap block is copied word by word, and any
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-01 00:23:32 +0000