diff options
Diffstat (limited to 'erts/emulator/beam/erl_bits.h')
-rw-r--r-- | erts/emulator/beam/erl_bits.h | 82 |
1 files changed, 30 insertions, 52 deletions
diff --git a/erts/emulator/beam/erl_bits.h b/erts/emulator/beam/erl_bits.h index 388d943755..b9d141d585 100644 --- a/erts/emulator/beam/erl_bits.h +++ b/erts/emulator/beam/erl_bits.h @@ -1,18 +1,19 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1999-2011. All Rights Reserved. + * Copyright Ericsson AB 1999-2017. 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% */ @@ -21,6 +22,23 @@ #define __ERL_BITS_H__ /* + * This structure represents a SUB_BINARY. + * + * Note: The last field (orig) is not counted in arityval in the header. + * This simplifies garbage collection. + */ + +typedef struct erl_sub_bin { + Eterm thing_word; /* Subtag SUB_BINARY_SUBTAG. */ + Uint size; /* Binary size in bytes. */ + Uint offs; /* Offset into original binary. */ + byte bitsize; + byte bitoffs; + byte is_writable; /* The underlying binary is writable */ + Eterm orig; /* Original binary (REFC or HEAP binary). */ +} ErlSubBin; + +/* * This structure represents a binary to be matched. */ @@ -66,31 +84,14 @@ typedef struct erl_bin_match_struct{ #define ms_matchbuffer(_Ms) &(((ErlBinMatchState*) boxed_val(_Ms))->mb) -#if defined(ERTS_SMP) -#define ERL_BITS_REENTRANT -#else -/* uncomment to test the reentrant API in the non-SMP runtime system */ -/* #define ERL_BITS_REENTRANT */ -#endif - -#ifdef ERL_BITS_REENTRANT - /* * Reentrant API with the state passed as a parameter. * (Except when the current Process* already is a parameter.) */ -#ifdef ERTS_SMP /* the state resides in the current process' scheduler data */ #define ERL_BITS_DECLARE_STATEP struct erl_bits_state *EBS -#define ERL_BITS_RELOAD_STATEP(P) do{EBS = &(P)->scheduler_data->erl_bits_state;}while(0) -#define ERL_BITS_DEFINE_STATEP(P) struct erl_bits_state *EBS = &(P)->scheduler_data->erl_bits_state -#else -/* reentrant API but with a hidden single global state, for testing only */ -extern struct erl_bits_state ErlBitsState_; -#define ERL_BITS_DECLARE_STATEP struct erl_bits_state *EBS = &ErlBitsState_ -#define ERL_BITS_RELOAD_STATEP(P) do{}while(0) -#define ERL_BITS_DEFINE_STATEP(P) ERL_BITS_DECLARE_STATEP -#endif +#define ERL_BITS_RELOAD_STATEP(P) do{EBS = &erts_proc_sched_data((P))->erl_bits_state;}while(0) +#define ERL_BITS_DEFINE_STATEP(P) struct erl_bits_state *EBS = &erts_proc_sched_data((P))->erl_bits_state #define ErlBitsState (*EBS) #define ERL_BITS_PROTO_0 struct erl_bits_state *EBS @@ -102,26 +103,6 @@ extern struct erl_bits_state ErlBitsState_; #define ERL_BITS_ARGS_2(ARG1,ARG2) EBS, ARG1, ARG2 #define ERL_BITS_ARGS_3(ARG1,ARG2,ARG3) EBS, ARG1, ARG2, ARG3 -#else /* ERL_BITS_REENTRANT */ - -/* - * Non-reentrant API with a single global state. - */ -extern struct erl_bits_state ErlBitsState; -#define ERL_BITS_DECLARE_STATEP /*empty*/ -#define ERL_BITS_RELOAD_STATEP(P) do{}while(0) -#define ERL_BITS_DEFINE_STATEP(P) /*empty*/ - -#define ERL_BITS_PROTO_0 void -#define ERL_BITS_PROTO_1(PARM1) PARM1 -#define ERL_BITS_PROTO_2(PARM1,PARM2) PARM1, PARM2 -#define ERL_BITS_PROTO_3(PARM1,PARM2,PARM3) PARM1, PARM2, PARM3 -#define ERL_BITS_ARGS_0 /*empty*/ -#define ERL_BITS_ARGS_1(ARG1) ARG1 -#define ERL_BITS_ARGS_2(ARG1,ARG2) ARG1, ARG2 -#define ERL_BITS_ARGS_3(ARG1,ARG2,ARG3) ARG1, ARG2, ARG3 - -#endif /* ERL_BITS_REENTRANT */ #define erts_bin_offset (ErlBitsState.erts_bin_offset_) #define erts_current_bin (ErlBitsState.erts_current_bin_) @@ -140,10 +121,8 @@ extern struct erl_bits_state ErlBitsState; } while (0) void erts_init_bits(void); /* Initialization once. */ -#ifdef ERTS_SMP void erts_bits_init_state(ERL_BITS_PROTO_0); void erts_bits_destroy_state(ERL_BITS_PROTO_0); -#endif /* @@ -184,7 +163,6 @@ void erts_new_bs_put_string(ERL_BITS_PROTO_2(byte* iptr, Uint num_bytes)); Uint erts_bits_bufs_size(void); Uint32 erts_bs_get_unaligned_uint32(ErlBinMatchBuffer* mb); -void erts_align_utf8_bytes(ErlBinMatchBuffer* mb, byte* buf); Eterm erts_bs_get_utf8(ErlBinMatchBuffer* mb); Eterm erts_bs_get_utf16(ErlBinMatchBuffer* mb, Uint flags); Eterm erts_bs_append(Process* p, Eterm* reg, Uint live, Eterm build_size_term, |