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-rw-r--r--erts/emulator/beam/erl_binary.h127
1 files changed, 79 insertions, 48 deletions
diff --git a/erts/emulator/beam/erl_binary.h b/erts/emulator/beam/erl_binary.h
index 506c4813fa..fdc5efea98 100644
--- a/erts/emulator/beam/erl_binary.h
+++ b/erts/emulator/beam/erl_binary.h
@@ -1,18 +1,19 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 2000-2011. All Rights Reserved.
+ * Copyright Ericsson AB 2000-2016. 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%
*/
@@ -71,7 +72,6 @@ typedef struct erl_heap_bin {
*/
#define binary_size(Bin) (binary_val(Bin)[1])
-#define binary_size_rel(Bin,BasePtr) (binary_val_rel(Bin,BasePtr)[1])
#define binary_bitsize(Bin) \
((*binary_val(Bin) == HEADER_SUB_BIN) ? \
@@ -94,12 +94,9 @@ typedef struct erl_heap_bin {
* Bitsize: output variable (Uint)
*/
-#define ERTS_GET_BINARY_BYTES(Bin,Bytep,Bitoffs,Bitsize) \
- ERTS_GET_BINARY_BYTES_REL(Bin,Bytep,Bitoffs,Bitsize,NULL)
-
-#define ERTS_GET_BINARY_BYTES_REL(Bin,Bytep,Bitoffs,Bitsize,BasePtr) \
+#define ERTS_GET_BINARY_BYTES(Bin,Bytep,Bitoffs,Bitsize) \
do { \
- Eterm* _real_bin = binary_val_rel(Bin,BasePtr); \
+ Eterm* _real_bin = binary_val(Bin); \
Uint _offs = 0; \
Bitoffs = Bitsize = 0; \
if (*_real_bin == HEADER_SUB_BIN) { \
@@ -107,7 +104,7 @@ do { \
_offs = _sb->offs; \
Bitoffs = _sb->bitoffs; \
Bitsize = _sb->bitsize; \
- _real_bin = binary_val_rel(_sb->orig,BasePtr); \
+ _real_bin = binary_val(_sb->orig); \
} \
if (*_real_bin == HEADER_PROC_BIN) { \
Bytep = ((ProcBin *) _real_bin)->bytes + _offs; \
@@ -130,11 +127,8 @@ do { \
*/
#define ERTS_GET_REAL_BIN(Bin, RealBin, ByteOffset, BitOffset, BitSize) \
- ERTS_GET_REAL_BIN_REL(Bin, RealBin, ByteOffset, BitOffset, BitSize, NULL)
-
-#define ERTS_GET_REAL_BIN_REL(Bin, RealBin, ByteOffset, BitOffset, BitSize, BasePtr) \
do { \
- ErlSubBin* _sb = (ErlSubBin *) binary_val_rel(Bin,BasePtr); \
+ ErlSubBin* _sb = (ErlSubBin *) binary_val(Bin); \
if (_sb->thing_word == HEADER_SUB_BIN) { \
RealBin = _sb->orig; \
ByteOffset = _sb->offs; \
@@ -153,7 +147,7 @@ do { \
#define binary_bytes(Bin) \
(*binary_val(Bin) == HEADER_PROC_BIN ? \
((ProcBin *) binary_val(Bin))->bytes : \
- (ASSERT_EXPR(thing_subtag(*binary_val(Bin)) == HEAP_BINARY_SUBTAG), \
+ (ASSERT(thing_subtag(*binary_val(Bin)) == HEAP_BINARY_SUBTAG), \
(byte *)(&(((ErlHeapBin *) binary_val(Bin))->data))))
void erts_init_binary(void);
@@ -166,7 +160,7 @@ Eterm erts_bin_bytes_to_list(Eterm previous, Eterm* hp, byte* bytes, Uint size,
* Common implementation for erlang:list_to_binary/1 and binary:list_to_bin/1
*/
-BIF_RETTYPE erts_list_to_binary_bif(Process *p, Eterm arg);
+BIF_RETTYPE erts_list_to_binary_bif(Process *p, Eterm arg, Export *bif);
BIF_RETTYPE erts_gc_binary_part(Process *p, Eterm *reg, Eterm live, int range_is_tuple);
BIF_RETTYPE erts_binary_part(Process *p, Eterm binary, Eterm epos, Eterm elen);
@@ -183,7 +177,7 @@ BIF_RETTYPE erts_binary_part(Process *p, Eterm binary, Eterm epos, Eterm elen);
#endif
#define ERTS_CHK_BIN_ALIGNMENT(B) \
- do { ASSERT(!(B) || (((UWord) &((Binary *)(B))->orig_bytes[0]) & ERTS_BIN_ALIGNMENT_MASK) == ((UWord) 0)) } while(0)
+ do { ASSERT(!(B) || (((UWord) &((Binary *)(B))->orig_bytes[0]) & ERTS_BIN_ALIGNMENT_MASK) == ((UWord) 0)); } while(0)
ERTS_GLB_INLINE byte* erts_get_aligned_binary_bytes(Eterm bin, byte** base_ptr);
ERTS_GLB_INLINE void erts_free_aligned_binary_bytes(byte* buf);
@@ -194,6 +188,9 @@ ERTS_GLB_INLINE Binary *erts_bin_nrml_alloc(Uint size);
ERTS_GLB_INLINE Binary *erts_bin_realloc_fnf(Binary *bp, Uint size);
ERTS_GLB_INLINE Binary *erts_bin_realloc(Binary *bp, Uint size);
ERTS_GLB_INLINE void erts_bin_free(Binary *bp);
+ERTS_GLB_INLINE Binary *erts_create_magic_binary_x(Uint size,
+ void (*destructor)(Binary *),
+ int unaligned);
ERTS_GLB_INLINE Binary *erts_create_magic_binary(Uint size,
void (*destructor)(Binary *));
@@ -225,41 +222,64 @@ erts_free_aligned_binary_bytes(byte* buf)
** These extra bytes where earlier (< R13B04) added by an alignment-bug
** in this code. Do we dare remove this in some major release (R14?) maybe?
*/
-#ifdef DEBUG
+#if defined(DEBUG) || defined(VALGRIND)
# define CHICKEN_PAD 0
#else
# define CHICKEN_PAD (sizeof(void*) - 1)
#endif
+/* Caller must initialize 'refc'
+*/
ERTS_GLB_INLINE Binary *
erts_bin_drv_alloc_fnf(Uint size)
{
Uint bsize = ERTS_SIZEOF_Binary(size) + CHICKEN_PAD;
- void *res;
+ Binary *res;
+
+ if (bsize < size) /* overflow */
+ return NULL;
res = erts_alloc_fnf(ERTS_ALC_T_DRV_BINARY, bsize);
ERTS_CHK_BIN_ALIGNMENT(res);
- return (Binary *) res;
+ if (res) {
+ res->orig_size = size;
+ res->flags = BIN_FLAG_DRV;
+ }
+ return res;
}
+/* Caller must initialize 'refc'
+*/
ERTS_GLB_INLINE Binary *
erts_bin_drv_alloc(Uint size)
{
Uint bsize = ERTS_SIZEOF_Binary(size) + CHICKEN_PAD;
- void *res;
+ Binary *res;
+
+ if (bsize < size) /* overflow */
+ erts_alloc_enomem(ERTS_ALC_T_DRV_BINARY, size);
res = erts_alloc(ERTS_ALC_T_DRV_BINARY, bsize);
ERTS_CHK_BIN_ALIGNMENT(res);
- return (Binary *) res;
+ res->orig_size = size;
+ res->flags = BIN_FLAG_DRV;
+ return res;
}
+/* Caller must initialize 'refc'
+*/
ERTS_GLB_INLINE Binary *
erts_bin_nrml_alloc(Uint size)
{
Uint bsize = ERTS_SIZEOF_Binary(size) + CHICKEN_PAD;
- void *res;
+ Binary *res;
+
+ if (bsize < size) /* overflow */
+ erts_alloc_enomem(ERTS_ALC_T_BINARY, size);
res = erts_alloc(ERTS_ALC_T_BINARY, bsize);
ERTS_CHK_BIN_ALIGNMENT(res);
- return (Binary *) res;
+ res->orig_size = size;
+ res->flags = 0;
+ return res;
}
ERTS_GLB_INLINE Binary *
@@ -267,12 +287,15 @@ erts_bin_realloc_fnf(Binary *bp, Uint size)
{
Binary *nbp;
Uint bsize = ERTS_SIZEOF_Binary(size) + CHICKEN_PAD;
+ ErtsAlcType_t type = (bp->flags & BIN_FLAG_DRV) ? ERTS_ALC_T_DRV_BINARY
+ : ERTS_ALC_T_BINARY;
ASSERT((bp->flags & BIN_FLAG_MAGIC) == 0);
- if (bp->flags & BIN_FLAG_DRV)
- nbp = erts_realloc_fnf(ERTS_ALC_T_DRV_BINARY, (void *) bp, bsize);
- else
- nbp = erts_realloc_fnf(ERTS_ALC_T_BINARY, (void *) bp, bsize);
+ if (bsize < size) /* overflow */
+ return NULL;
+ nbp = erts_realloc_fnf(type, (void *) bp, bsize);
ERTS_CHK_BIN_ALIGNMENT(nbp);
+ if (nbp)
+ nbp->orig_size = size;
return nbp;
}
@@ -281,18 +304,16 @@ erts_bin_realloc(Binary *bp, Uint size)
{
Binary *nbp;
Uint bsize = ERTS_SIZEOF_Binary(size) + CHICKEN_PAD;
+ ErtsAlcType_t type = (bp->flags & BIN_FLAG_DRV) ? ERTS_ALC_T_DRV_BINARY
+ : ERTS_ALC_T_BINARY;
ASSERT((bp->flags & BIN_FLAG_MAGIC) == 0);
- if (bp->flags & BIN_FLAG_DRV)
- nbp = erts_realloc_fnf(ERTS_ALC_T_DRV_BINARY, (void *) bp, bsize);
- else
- nbp = erts_realloc_fnf(ERTS_ALC_T_BINARY, (void *) bp, bsize);
+ if (bsize < size) /* overflow */
+ erts_realloc_enomem(type, bp, size);
+ nbp = erts_realloc_fnf(type, (void *) bp, bsize);
if (!nbp)
- erts_realloc_n_enomem(ERTS_ALC_T2N(bp->flags & BIN_FLAG_DRV
- ? ERTS_ALC_T_DRV_BINARY
- : ERTS_ALC_T_BINARY),
- bp,
- bsize);
+ erts_realloc_enomem(type, bp, bsize);
ERTS_CHK_BIN_ALIGNMENT(nbp);
+ nbp->orig_size = size;
return nbp;
}
@@ -308,20 +329,30 @@ erts_bin_free(Binary *bp)
}
ERTS_GLB_INLINE Binary *
-erts_create_magic_binary(Uint size, void (*destructor)(Binary *))
+erts_create_magic_binary_x(Uint size, void (*destructor)(Binary *),
+ int unaligned)
{
- Uint bsize = ERTS_MAGIC_BIN_SIZE(size);
+ Uint bsize = unaligned ? ERTS_MAGIC_BIN_UNALIGNED_SIZE(size)
+ : ERTS_MAGIC_BIN_SIZE(size);
Binary* bptr = erts_alloc_fnf(ERTS_ALC_T_BINARY, bsize);
+ ASSERT(bsize > size);
if (!bptr)
erts_alloc_n_enomem(ERTS_ALC_T2N(ERTS_ALC_T_BINARY), bsize);
ERTS_CHK_BIN_ALIGNMENT(bptr);
bptr->flags = BIN_FLAG_MAGIC;
- bptr->orig_size = ERTS_MAGIC_BIN_ORIG_SIZE(size);
+ bptr->orig_size = unaligned ? ERTS_MAGIC_BIN_UNALIGNED_ORIG_SIZE(size)
+ : ERTS_MAGIC_BIN_ORIG_SIZE(size);
erts_refc_init(&bptr->refc, 0);
ERTS_MAGIC_BIN_DESTRUCTOR(bptr) = destructor;
return bptr;
}
+ERTS_GLB_INLINE Binary *
+erts_create_magic_binary(Uint size, void (*destructor)(Binary *))
+{
+ return erts_create_magic_binary_x(size, destructor, 0);
+}
+
#endif /* #if ERTS_GLB_INLINE_INCL_FUNC_DEF */
-#endif
+#endif /* !__ERL_BINARY_H */
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