diff options
| -rw-r--r-- | erts/emulator/beam/erl_node_tables.c | 28 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_node_tables.h | 2 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_term.h | 10 | ||||
| -rw-r--r-- | erts/emulator/beam/external.c | 157 | ||||
| -rw-r--r-- | erts/emulator/beam/external.h | 5 | ||||
| -rw-r--r-- | erts/emulator/test/node_container_SUITE.erl | 121 |
6 files changed, 196 insertions, 127 deletions
diff --git a/erts/emulator/beam/erl_node_tables.c b/erts/emulator/beam/erl_node_tables.c index 8617f42d7b..79da705e0f 100644 --- a/erts/emulator/beam/erl_node_tables.c +++ b/erts/emulator/beam/erl_node_tables.c @@ -497,31 +497,7 @@ node_table_hash(void *venp) Uint32 cre = ((ErlNode *) venp)->creation; HashValue h = atom_tab(atom_val(((ErlNode *) venp)->sysname))->slot.bucket.hvalue; - h *= PRIME0; - h += cre & 0xff; - -#if MAX_CREATION >= (1 << 8) - h *= PRIME1; - h += (cre >> 8) & 0xff; -#endif - -#if MAX_CREATION >= (1 << 16) - h *= PRIME2; - h += (cre >> 16) & 0xff; -#endif - -#if MAX_CREATION >= (1 << 24) - h *= PRIME3; - h += (cre >> 24) & 0xff; -#endif - -#if 0 -/* XXX Problems in older versions of GCC */ - #if MAX_CREATION >= (1UL << 32) - #error "MAX_CREATION larger than size of expected creation storage (Uint32)" - #endif -#endif - return h; + return (h + cre) * PRIME0; } static int @@ -599,7 +575,7 @@ erts_node_table_info(int to, void *to_arg) } -ErlNode *erts_find_or_insert_node(Eterm sysname, Uint creation) +ErlNode *erts_find_or_insert_node(Eterm sysname, Uint32 creation) { ErlNode *res; ErlNode ne; diff --git a/erts/emulator/beam/erl_node_tables.h b/erts/emulator/beam/erl_node_tables.h index fb2f2a5407..2b93f1f08a 100644 --- a/erts/emulator/beam/erl_node_tables.h +++ b/erts/emulator/beam/erl_node_tables.h @@ -182,7 +182,7 @@ Uint erts_dist_table_size(void); void erts_dist_table_info(int, void *); void erts_set_dist_entry_not_connected(DistEntry *); void erts_set_dist_entry_connected(DistEntry *, Eterm, Uint); -ErlNode *erts_find_or_insert_node(Eterm, Uint); +ErlNode *erts_find_or_insert_node(Eterm, Uint32); void erts_schedule_delete_node(ErlNode *); void erts_set_this_node(Eterm, Uint); Uint erts_node_table_size(void); diff --git a/erts/emulator/beam/erl_term.h b/erts/emulator/beam/erl_term.h index 0a71534790..fc58853b5e 100644 --- a/erts/emulator/beam/erl_term.h +++ b/erts/emulator/beam/erl_term.h @@ -558,14 +558,6 @@ _ET_DECLARE_CHECKED(Eterm*,tuple_val,Wterm) #define _GETBITS(X,Pos,Size) (((X) >> (Pos)) & ~(~((Uint) 0) << (Size))) -/* - * Creation in node specific data (pids, ports, refs) - */ - -#define _CRE_SIZE 2 - -/* MAX value for the creation field in pid, port and reference */ -#define MAX_CREATION (1 << _CRE_SIZE) /* * PID layout (internal pids): @@ -579,7 +571,7 @@ _ET_DECLARE_CHECKED(Eterm*,tuple_val,Wterm) * * n : number * - * Old pid layout: + * Very old pid layout: * * |3 3 2 2 2 2 2 2|2 2 2 2 1 1 1 1|1 1 1 1 1 1 | | * |1 0 9 8 7 6 5 4|3 2 1 0 9 8 7 6|5 4 3 2 1 0 9 8|7 6 5 4 3 2 1 0| diff --git a/erts/emulator/beam/external.c b/erts/emulator/beam/external.c index de0c155fc0..5ea155f83f 100644 --- a/erts/emulator/beam/external.c +++ b/erts/emulator/beam/external.c @@ -51,7 +51,18 @@ #define MAX_STRING_LEN 0xffff -#define is_valid_creation(Cre) ((unsigned)(Cre) < MAX_CREATION) +/* MAX value for the creation field in pid, port and reference + for the local node and for the current external format. + + Larger creation values than this are allowed in external pid, port and refs + encoded with NEW_PID_EXT, NEW_PORT_EXT and NEWER_REFERENCE_EXT. + The point here is to prepare for future upgrade to 32-bit creation. + OTP-19 (erts-8.0) can handle big creation values from other (newer) nodes, + but do not use big creation values for the local node yet, + as we still may have to communicate with older nodes. +*/ +#define ERTS_MAX_LOCAL_CREATION (3) +#define is_valid_creation(Cre) ((unsigned)(Cre) <= ERTS_MAX_LOCAL_CREATION) #undef ERTS_DEBUG_USE_DIST_SEP #ifdef DEBUG @@ -97,7 +108,7 @@ static byte* enc_pid(ErtsAtomCacheMap *, Eterm, byte*, Uint32); struct B2TContext_t; static byte* dec_term(ErtsDistExternal*, ErtsHeapFactory*, byte*, Eterm*, struct B2TContext_t*); static byte* dec_atom(ErtsDistExternal *, byte*, Eterm*); -static byte* dec_pid(ErtsDistExternal *, ErtsHeapFactory*, byte*, Eterm*); +static byte* dec_pid(ErtsDistExternal *, ErtsHeapFactory*, byte*, Eterm*, byte tag); static Sint decoded_size(byte *ep, byte* endp, int internal_tags, struct B2TContext_t*); static BIF_RETTYPE term_to_binary_trap_1(BIF_ALIST_1); @@ -2154,8 +2165,9 @@ enc_pid(ErtsAtomCacheMap *acmp, Eterm pid, byte* ep, Uint32 dflags) Uint on, os; Eterm sysname = ((is_internal_pid(pid) && (dflags & DFLAG_INTERNAL_TAGS)) ? am_Empty : pid_node_name(pid)); + Uint32 creation = pid_creation(pid); + byte* tagp = ep++; - *ep++ = PID_EXT; /* insert atom here containing host and sysname */ ep = enc_atom(acmp, sysname, ep, dflags); @@ -2166,7 +2178,15 @@ enc_pid(ErtsAtomCacheMap *acmp, Eterm pid, byte* ep, Uint32 dflags) ep += 4; put_int32(os, ep); ep += 4; - *ep++ = pid_creation(pid); + if (creation <= ERTS_MAX_LOCAL_CREATION) { + *tagp = PID_EXT; + *ep++ = creation; + } else { + ASSERT(is_external_pid(pid)); + *tagp = NEW_PID_EXT; + put_int32(creation, ep); + ep += 4; + } return ep; } @@ -2246,7 +2266,7 @@ dec_atom(ErtsDistExternal *edep, byte* ep, Eterm* objp) return ep; } -static ERTS_INLINE ErlNode* dec_get_node(Eterm sysname, Uint creation) +static ERTS_INLINE ErlNode* dec_get_node(Eterm sysname, Uint32 creation) { if (sysname == am_Empty) /* && DFLAG_INTERNAL_TAGS */ return erts_this_node; @@ -2259,13 +2279,14 @@ static ERTS_INLINE ErlNode* dec_get_node(Eterm sysname, Uint creation) } static byte* -dec_pid(ErtsDistExternal *edep, ErtsHeapFactory* factory, byte* ep, Eterm* objp) +dec_pid(ErtsDistExternal *edep, ErtsHeapFactory* factory, byte* ep, + Eterm* objp, byte tag) { Eterm sysname; Uint data; Uint num; Uint ser; - Uint cre; + Uint32 cre; ErlNode *node; *objp = NIL; /* In case we fail, don't leave a hole in the heap */ @@ -2281,12 +2302,19 @@ dec_pid(ErtsDistExternal *edep, ErtsHeapFactory* factory, byte* ep, Eterm* objp) ep += 4; if (ser > ERTS_MAX_PID_SERIAL) return NULL; - cre = get_int8(ep); - ep += 1; - if (!is_valid_creation(cre)) { - return NULL; + if (tag == PID_EXT) { + cre = get_int8(ep); + ep += 1; + if (!is_valid_creation(cre)) { + return NULL; + } + } else { + ASSERT(tag == NEW_PID_EXT); + cre = get_int32(ep); + ep += 4; } + data = make_pid_data(ser, num); /* @@ -2528,15 +2556,24 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 *ref_num; Eterm sysname = (((dflags & DFLAG_INTERNAL_TAGS) && is_internal_ref(obj)) ? am_Empty : ref_node_name(obj)); + Uint32 creation = ref_creation(obj); + byte* tagp = ep++; ASSERT(dflags & DFLAG_EXTENDED_REFERENCES); - *ep++ = NEW_REFERENCE_EXT; i = ref_no_of_numbers(obj); put_int16(i, ep); ep += 2; ep = enc_atom(acmp, sysname, ep, dflags); - *ep++ = ref_creation(obj); + if (creation <= ERTS_MAX_LOCAL_CREATION) { + *tagp = NEW_REFERENCE_EXT; + *ep++ = creation; + } else { + ASSERT(is_external_ref(obj)); + *tagp = NEWER_REFERENCE_EXT; + put_int32(creation, ep); + ep += 4; + } ref_num = ref_numbers(obj); for (j = 0; j < i; j++) { put_int32(ref_num[j], ep); @@ -2548,12 +2585,22 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, case EXTERNAL_PORT_DEF: { Eterm sysname = (((dflags & DFLAG_INTERNAL_TAGS) && is_internal_port(obj)) ? am_Empty : port_node_name(obj)); - *ep++ = PORT_EXT; + Uint32 creation = port_creation(obj); + byte* tagp = ep++; + ep = enc_atom(acmp, sysname, ep, dflags); j = port_number(obj); put_int32(j, ep); ep += 4; - *ep++ = port_creation(obj); + if (creation <= ERTS_MAX_LOCAL_CREATION) { + *tagp = PORT_EXT; + *ep++ = creation; + } else { + ASSERT(is_external_port(obj)); + *tagp = NEW_PORT_EXT; + put_int32(creation, ep); + ep += 4; + } break; } case LIST_DEF: @@ -3259,20 +3306,23 @@ dec_term_atom_common: hp += FLOAT_SIZE_OBJECT; break; } - case PID_EXT: + case PID_EXT: + case NEW_PID_EXT: factory->hp = hp; - ep = dec_pid(edep, factory, ep, objp); + ep = dec_pid(edep, factory, ep, objp, ep[-1]); hp = factory->hp; if (ep == NULL) { goto error; } break; - case PORT_EXT: + case PORT_EXT: + case NEW_PORT_EXT: { Eterm sysname; ErlNode *node; Uint num; - Uint cre; + Uint32 cre; + byte tag = ep[-1]; if ((ep = dec_atom(edep, ep, &sysname)) == NULL) { goto error; @@ -3281,12 +3331,17 @@ dec_term_atom_common: goto error; } ep += 4; - cre = get_int8(ep); - ep++; - if (!is_valid_creation(cre)) { - goto error; - } - + if (tag == PORT_EXT) { + cre = get_int8(ep); + ep++; + if (!is_valid_creation(cre)) { + goto error; + } + } + else { + cre = get_int32(ep); + ep += 4; + } node = dec_get_node(sysname, cre); if(node == erts_this_node) { *objp = make_internal_port(num); @@ -3311,7 +3366,7 @@ dec_term_atom_common: Eterm sysname; ErlNode *node; int i; - Uint cre; + Uint32 cre; Uint32 *ref_num; Uint32 r0; Uint ref_words; @@ -3335,9 +3390,6 @@ dec_term_atom_common: ref_words = get_int16(ep); ep += 2; - if (ref_words > ERTS_MAX_REF_NUMBERS) - goto error; - if ((ep = dec_atom(edep, ep, &sysname)) == NULL) goto error; @@ -3350,8 +3402,23 @@ dec_term_atom_common: ep += 4; if (r0 >= MAX_REFERENCE) goto error; + goto ref_ext_common; + + case NEWER_REFERENCE_EXT: + ref_words = get_int16(ep); + ep += 2; + + if ((ep = dec_atom(edep, ep, &sysname)) == NULL) + goto error; + + cre = get_int32(ep); + ep += 4; + r0 = get_int32(ep); /* allow full word */ + ep += 4; ref_ext_common: + if (ref_words > ERTS_MAX_REF_NUMBERS) + goto error; node = dec_get_node(sysname, cre); if(node == erts_this_node) { @@ -3705,9 +3772,9 @@ dec_term_atom_common: *objp = make_fun(funp); /* Creator pid */ - if (*ep != PID_EXT - || (ep = dec_pid(edep, factory, ++ep, - &funp->creator))==NULL) { + if ((*ep != PID_EXT && *ep != NEW_PID_EXT) + || (ep = dec_pid(edep, factory, ep+1, + &funp->creator, *ep))==NULL) { goto error; } @@ -4009,20 +4076,29 @@ encode_size_struct_int(TTBSizeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, else result += 1 + 4 + 1 + i; /* tag,size,sign,digits */ break; + case EXTERNAL_PID_DEF: + if (external_pid_creation(obj) > ERTS_MAX_LOCAL_CREATION) + result += 3; + /*fall through*/ case PID_DEF: - case EXTERNAL_PID_DEF: result += (1 + encode_size_struct2(acmp, pid_node_name(obj), dflags) + 4 + 4 + 1); break; + case EXTERNAL_REF_DEF: + if (external_ref_creation(obj) > ERTS_MAX_LOCAL_CREATION) + result += 3; + /*fall through*/ case REF_DEF: - case EXTERNAL_REF_DEF: ASSERT(dflags & DFLAG_EXTENDED_REFERENCES); i = ref_no_of_numbers(obj); result += (1 + 2 + encode_size_struct2(acmp, ref_node_name(obj), dflags) + 1 + 4*i); break; - case PORT_DEF: - case EXTERNAL_PORT_DEF: + case EXTERNAL_PORT_DEF: + if (external_port_creation(obj) > ERTS_MAX_LOCAL_CREATION) + result += 3; + /*fall through*/ + case PORT_DEF: result += (1 + encode_size_struct2(acmp, port_node_name(obj), dflags) + 4 + 1); break; @@ -4349,19 +4425,22 @@ init_done: SKIP(1+atom_extra_skip); atom_extra_skip = 0; break; - case PID_EXT: + case PID_EXT: + case NEW_PID_EXT: atom_extra_skip = 9; /* In case it is an external pid */ heap_size += EXTERNAL_THING_HEAD_SIZE + 1; terms++; break; - case PORT_EXT: + case PORT_EXT: + case NEW_PORT_EXT: atom_extra_skip = 5; /* In case it is an external port */ heap_size += EXTERNAL_THING_HEAD_SIZE + 1; terms++; break; - case NEW_REFERENCE_EXT: + case NEW_REFERENCE_EXT: + case NEWER_REFERENCE_EXT: { int id_words; diff --git a/erts/emulator/beam/external.h b/erts/emulator/beam/external.h index 87eff2fe9f..49198fb47f 100644 --- a/erts/emulator/beam/external.h +++ b/erts/emulator/beam/external.h @@ -18,8 +18,6 @@ * %CopyrightEnd% */ -/* Same order as the ordering of terms in erlang */ - /* Since there are 255 different External tag values to choose from There is no reason to not be extravagant. Hence, the different tags for large/small tuple e.t.c @@ -37,9 +35,12 @@ #define SMALL_ATOM_EXT 's' #define REFERENCE_EXT 'e' #define NEW_REFERENCE_EXT 'r' +#define NEWER_REFERENCE_EXT 'Z' #define PORT_EXT 'f' +#define NEW_PORT_EXT 'Y' #define NEW_FLOAT_EXT 'F' #define PID_EXT 'g' +#define NEW_PID_EXT 'X' #define SMALL_TUPLE_EXT 'h' #define LARGE_TUPLE_EXT 'i' #define NIL_EXT 'j' diff --git a/erts/emulator/test/node_container_SUITE.erl b/erts/emulator/test/node_container_SUITE.erl index 71400142af..8c4dd082d4 100644 --- a/erts/emulator/test/node_container_SUITE.erl +++ b/erts/emulator/test/node_container_SUITE.erl @@ -126,7 +126,13 @@ term_to_binary_to_term_eq(Config) when is_list(Config) -> LHLRef = binary_to_term(term_to_binary(LHLRef)), LSRef = binary_to_term(term_to_binary(LSRef)), % Get remote node containers - RNode = {get_nodename(), 3}, + ttbtteq_do_remote({get_nodename(), 3}), + ttbtteq_do_remote({get_nodename(), 4}), + ttbtteq_do_remote({get_nodename(), 16#adec0ded}), + nc_refc_check(node()), + ok. + +ttbtteq_do_remote(RNode) -> RPid = mk_pid(RNode, 4711, 1), RXPid = mk_pid(RNode, 32767, 8191), RPort = mk_port(RNode, 4711), @@ -142,7 +148,6 @@ term_to_binary_to_term_eq(Config) when is_list(Config) -> RLRef = binary_to_term(term_to_binary(RLRef)), RHLRef = binary_to_term(term_to_binary(RHLRef)), RSRef = binary_to_term(term_to_binary(RSRef)), - nc_refc_check(node()), ok. @@ -807,7 +812,7 @@ bad_nc(Config) when is_list(Config) -> = (catch mk_ref(RemNode, [(1 bsl 18), 4711, 4711])), {'EXIT', {badarg, mk_ref, _}} = (catch mk_ref(RemNode, [4711, 4711, 4711, 4711, 4711, 4711, 4711])), - BadNode = {x@y, 4}, + BadNode = {x@y, bad_creation}, {'EXIT', {badarg, mk_pid, _}} = (catch mk_pid(BadNode, 4711, 17)), {'EXIT', {badarg, mk_port, _}} @@ -1111,6 +1116,9 @@ get_nodename() -> -define(PORT_EXT, 102). -define(PID_EXT, 103). -define(NEW_REFERENCE_EXT, 114). +-define(NEW_PID_EXT, $X). +-define(NEW_PORT_EXT, $Y). +-define(NEWER_REFERENCE_EXT, $Z). uint32_be(Uint) when is_integer(Uint), 0 =< Uint, Uint < 1 bsl 32 -> [(Uint bsr 24) band 16#ff, @@ -1133,51 +1141,65 @@ uint8(Uint) -> exit({badarg, uint8, [Uint]}). +pid_tag(bad_creation) -> ?PID_EXT; +pid_tag(Creation) when Creation =< 3 -> ?PID_EXT; +pid_tag(_Creation) -> ?NEW_PID_EXT. + +enc_creation(bad_creation) -> uint8(4); +enc_creation(Creation) when Creation =< 3 -> uint8(Creation); +enc_creation(Creation) -> uint32_be(Creation). mk_pid({NodeName, Creation}, Number, Serial) when is_atom(NodeName) -> mk_pid({atom_to_list(NodeName), Creation}, Number, Serial); mk_pid({NodeName, Creation}, Number, Serial) -> case catch binary_to_term(list_to_binary([?VERSION_MAGIC, - ?PID_EXT, - ?ATOM_EXT, - uint16_be(length(NodeName)), - NodeName, - uint32_be(Number), - uint32_be(Serial), - uint8(Creation)])) of - Pid when is_pid(Pid) -> - Pid; - {'EXIT', {badarg, _}} -> - exit({badarg, mk_pid, [{NodeName, Creation}, Number, Serial]}); - Other -> - exit({unexpected_binary_to_term_result, Other}) + pid_tag(Creation), + ?ATOM_EXT, + uint16_be(length(NodeName)), + NodeName, + uint32_be(Number), + uint32_be(Serial), + enc_creation(Creation)])) of + Pid when is_pid(Pid) -> + Pid; + {'EXIT', {badarg, _}} -> + exit({badarg, mk_pid, [{NodeName, Creation}, Number, Serial]}); + Other -> + exit({unexpected_binary_to_term_result, Other}) end. +port_tag(bad_creation) -> ?PORT_EXT; +port_tag(Creation) when Creation =< 3 -> ?PORT_EXT; +port_tag(_Creation) -> ?NEW_PORT_EXT. + mk_port({NodeName, Creation}, Number) when is_atom(NodeName) -> mk_port({atom_to_list(NodeName), Creation}, Number); mk_port({NodeName, Creation}, Number) -> case catch binary_to_term(list_to_binary([?VERSION_MAGIC, - ?PORT_EXT, - ?ATOM_EXT, - uint16_be(length(NodeName)), - NodeName, - uint32_be(Number), - uint8(Creation)])) of - Port when is_port(Port) -> - Port; - {'EXIT', {badarg, _}} -> - exit({badarg, mk_port, [{NodeName, Creation}, Number]}); - Other -> - exit({unexpected_binary_to_term_result, Other}) + port_tag(Creation), + ?ATOM_EXT, + uint16_be(length(NodeName)), + NodeName, + uint32_be(Number), + enc_creation(Creation)])) of + Port when is_port(Port) -> + Port; + {'EXIT', {badarg, _}} -> + exit({badarg, mk_port, [{NodeName, Creation}, Number]}); + Other -> + exit({unexpected_binary_to_term_result, Other}) end. +ref_tag(bad_creation) -> ?NEW_REFERENCE_EXT; +ref_tag(Creation) when Creation =< 3 -> ?NEW_REFERENCE_EXT; +ref_tag(_Creation) -> ?NEWER_REFERENCE_EXT. + mk_ref({NodeName, Creation}, Numbers) when is_atom(NodeName), - is_integer(Creation), - is_list(Numbers) -> + is_list(Numbers) -> mk_ref({atom_to_list(NodeName), Creation}, Numbers); mk_ref({NodeName, Creation}, [Number]) when is_list(NodeName), - is_integer(Creation), - is_integer(Number) -> + Creation =< 3, + is_integer(Number) -> case catch binary_to_term(list_to_binary([?VERSION_MAGIC, ?REFERENCE_EXT, ?ATOM_EXT, @@ -1193,25 +1215,24 @@ mk_ref({NodeName, Creation}, [Number]) when is_list(NodeName), exit({unexpected_binary_to_term_result, Other}) end; mk_ref({NodeName, Creation}, Numbers) when is_list(NodeName), - is_integer(Creation), - is_list(Numbers) -> + is_list(Numbers) -> case catch binary_to_term(list_to_binary([?VERSION_MAGIC, - ?NEW_REFERENCE_EXT, - uint16_be(length(Numbers)), - ?ATOM_EXT, - uint16_be(length(NodeName)), - NodeName, - uint8(Creation), - lists:map(fun (N) -> - uint32_be(N) - end, - Numbers)])) of - Ref when is_reference(Ref) -> - Ref; - {'EXIT', {badarg, _}} -> - exit({badarg, mk_ref, [{NodeName, Creation}, Numbers]}); - Other -> - exit({unexpected_binary_to_term_result, Other}) + ref_tag(Creation), + uint16_be(length(Numbers)), + ?ATOM_EXT, + uint16_be(length(NodeName)), + NodeName, + enc_creation(Creation), + lists:map(fun (N) -> + uint32_be(N) + end, + Numbers)])) of + Ref when is_reference(Ref) -> + Ref; + {'EXIT', {badarg, _}} -> + exit({badarg, mk_ref, [{NodeName, Creation}, Numbers]}); + Other -> + exit({unexpected_binary_to_term_result, Other}) end. exec_loop() -> |