diff options
Diffstat (limited to 'erts/emulator/beam/erl_binary.h')
-rw-r--r-- | erts/emulator/beam/erl_binary.h | 56 |
1 files changed, 35 insertions, 21 deletions
diff --git a/erts/emulator/beam/erl_binary.h b/erts/emulator/beam/erl_binary.h index 6ff71ec6d1..b036b28dbf 100644 --- a/erts/emulator/beam/erl_binary.h +++ b/erts/emulator/beam/erl_binary.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2000-2016. All Rights Reserved. + * Copyright Ericsson AB 2000-2017. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -42,14 +42,16 @@ #define ERTS_BINARY_STRUCT_ALIGNMENT #endif -/* Add fields in ERTS_INTERNAL_BINARY_FIELDS, otherwise the drivers crash */ -#define ERTS_INTERNAL_BINARY_FIELDS \ - UWord flags; \ - erts_refc_t refc; \ +/* Add fields in binary_internals, otherwise the drivers crash */ +struct binary_internals { + UWord flags; + erts_refc_t refc; ERTS_BINARY_STRUCT_ALIGNMENT +}; + typedef struct binary { - ERTS_INTERNAL_BINARY_FIELDS + struct binary_internals intern; SWord orig_size; char orig_bytes[1]; /* to be continued */ } Binary; @@ -63,7 +65,7 @@ typedef struct binary { typedef struct magic_binary ErtsMagicBinary; struct magic_binary { - ERTS_INTERNAL_BINARY_FIELDS + struct binary_internals intern; SWord orig_size; int (*destructor)(Binary *); Uint32 refn[ERTS_REF_NUMBERS]; @@ -87,7 +89,7 @@ typedef union { Binary binary; ErtsMagicBinary magic_binary; struct { - ERTS_INTERNAL_BINARY_FIELDS + struct binary_internals intern; ErlDrvBinary binary; } driver; } ErtsBinary; @@ -316,6 +318,7 @@ 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 void erts_bin_release(Binary *bp); ERTS_GLB_INLINE Binary *erts_create_magic_binary_x(Uint size, int (*destructor)(Binary *), ErtsAlcType_t alloc_type, @@ -374,7 +377,8 @@ erts_bin_drv_alloc_fnf(Uint size) ERTS_CHK_BIN_ALIGNMENT(res); if (res) { res->orig_size = size; - res->flags = BIN_FLAG_DRV; + res->intern.flags = BIN_FLAG_DRV; + erts_refc_init(&res->intern.refc, 1); } return res; } @@ -392,7 +396,8 @@ erts_bin_drv_alloc(Uint size) res = erts_alloc(ERTS_ALC_T_DRV_BINARY, bsize); ERTS_CHK_BIN_ALIGNMENT(res); res->orig_size = size; - res->flags = BIN_FLAG_DRV; + res->intern.flags = BIN_FLAG_DRV; + erts_refc_init(&res->intern.refc, 1); return res; } @@ -410,7 +415,8 @@ erts_bin_nrml_alloc(Uint size) res = erts_alloc(ERTS_ALC_T_BINARY, bsize); ERTS_CHK_BIN_ALIGNMENT(res); res->orig_size = size; - res->flags = 0; + res->intern.flags = 0; + erts_refc_init(&res->intern.refc, 1); return res; } @@ -419,9 +425,9 @@ 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 + ErtsAlcType_t type = (bp->intern.flags & BIN_FLAG_DRV) ? ERTS_ALC_T_DRV_BINARY : ERTS_ALC_T_BINARY; - ASSERT((bp->flags & BIN_FLAG_MAGIC) == 0); + ASSERT((bp->intern.flags & BIN_FLAG_MAGIC) == 0); if (bsize < size) /* overflow */ return NULL; nbp = erts_realloc_fnf(type, (void *) bp, bsize); @@ -436,9 +442,9 @@ 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 + ErtsAlcType_t type = (bp->intern.flags & BIN_FLAG_DRV) ? ERTS_ALC_T_DRV_BINARY : ERTS_ALC_T_BINARY; - ASSERT((bp->flags & BIN_FLAG_MAGIC) == 0); + ASSERT((bp->intern.flags & BIN_FLAG_MAGIC) == 0); if (bsize < size) /* overflow */ erts_realloc_enomem(type, bp, size); nbp = erts_realloc_fnf(type, (void *) bp, bsize); @@ -452,7 +458,7 @@ erts_bin_realloc(Binary *bp, Uint size) ERTS_GLB_INLINE void erts_bin_free(Binary *bp) { - if (bp->flags & BIN_FLAG_MAGIC) { + if (bp->intern.flags & BIN_FLAG_MAGIC) { if (!ERTS_MAGIC_BIN_DESTRUCTOR(bp)(bp)) { /* Destructor took control of the deallocation */ return; @@ -460,12 +466,20 @@ erts_bin_free(Binary *bp) erts_magic_ref_remove_bin(ERTS_MAGIC_BIN_REFN(bp)); erts_free(ERTS_MAGIC_BIN_ATYPE(bp), (void *) bp); } - else if (bp->flags & BIN_FLAG_DRV) + else if (bp->intern.flags & BIN_FLAG_DRV) erts_free(ERTS_ALC_T_DRV_BINARY, (void *) bp); else erts_free(ERTS_ALC_T_BINARY, (void *) bp); } +ERTS_GLB_INLINE void +erts_bin_release(Binary *bp) +{ + if (erts_refc_dectest(&bp->intern.refc, 0) == 0) { + erts_bin_free(bp); + } +} + ERTS_GLB_INLINE Binary * erts_create_magic_binary_x(Uint size, int (*destructor)(Binary *), ErtsAlcType_t alloc_type, @@ -478,10 +492,10 @@ erts_create_magic_binary_x(Uint size, int (*destructor)(Binary *), if (!bptr) erts_alloc_n_enomem(ERTS_ALC_T2N(alloc_type), bsize); ERTS_CHK_BIN_ALIGNMENT(bptr); - bptr->flags = BIN_FLAG_MAGIC; + bptr->intern.flags = BIN_FLAG_MAGIC; bptr->orig_size = unaligned ? ERTS_MAGIC_BIN_UNALIGNED_ORIG_SIZE(size) : ERTS_MAGIC_BIN_ORIG_SIZE(size); - erts_refc_init(&bptr->refc, 0); + erts_refc_init(&bptr->intern.refc, 0); ERTS_MAGIC_BIN_DESTRUCTOR(bptr) = destructor; ERTS_MAGIC_BIN_ATYPE(bptr) = alloc_type; erts_make_magic_ref_in_array(ERTS_MAGIC_BIN_REFN(bptr)); @@ -509,7 +523,7 @@ ERTS_GLB_INLINE erts_smp_atomic_t * erts_smp_binary_to_magic_indirection(Binary *bp) { ErtsMagicIndirectionWord *mip; - ASSERT(bp->flags & BIN_FLAG_MAGIC); + ASSERT(bp->intern.flags & BIN_FLAG_MAGIC); ASSERT(ERTS_MAGIC_BIN_ATYPE(bp) == ERTS_ALC_T_MINDIRECTION); mip = ERTS_MAGIC_BIN_UNALIGNED_DATA(bp); return &mip->smp_atomic_word; @@ -519,7 +533,7 @@ ERTS_GLB_INLINE erts_atomic_t * erts_binary_to_magic_indirection(Binary *bp) { ErtsMagicIndirectionWord *mip; - ASSERT(bp->flags & BIN_FLAG_MAGIC); + ASSERT(bp->intern.flags & BIN_FLAG_MAGIC); ASSERT(ERTS_MAGIC_BIN_ATYPE(bp) == ERTS_ALC_T_MINDIRECTION); mip = ERTS_MAGIC_BIN_UNALIGNED_DATA(bp); return &mip->atomic_word; |