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| author | Sverker Eriksson <[email protected]> | 2015-01-23 17:50:57 +0100 |
|---|---|---|
| committer | Björn-Egil Dahlberg <[email protected]> | 2015-03-12 18:56:42 +0100 |
| commit | e5d514d5adb230bbc832db5c6cf344a69a8df3bf (patch) | |
| tree | 58e05c91dc39e8abd328e0452fbef0323615ae84 /erts | |
| parent | aefea82d97f984c615990729a0f7d4303741f233 (diff) | |
| download | otp-e5d514d5adb230bbc832db5c6cf344a69a8df3bf.tar.gz otp-e5d514d5adb230bbc832db5c6cf344a69a8df3bf.tar.bz2 otp-e5d514d5adb230bbc832db5c6cf344a69a8df3bf.zip | |
erts: Add term_to_binary for hashmap
Diffstat (limited to 'erts')
| -rw-r--r-- | erts/emulator/beam/external.c | 80 |
1 files changed, 79 insertions, 1 deletions
diff --git a/erts/emulator/beam/external.c b/erts/emulator/beam/external.c index e5fb2d3ec1..af8db4c265 100644 --- a/erts/emulator/beam/external.c +++ b/erts/emulator/beam/external.c @@ -2304,7 +2304,8 @@ dec_pid(ErtsDistExternal *edep, Eterm** hpp, byte* ep, ErlOffHeap* off_heap, Ete #define ENC_PATCH_FUN_SIZE ((Eterm) 2) #define ENC_BIN_COPY ((Eterm) 3) #define ENC_MAP_PAIR ((Eterm) 4) -#define ENC_LAST_ARRAY_ELEMENT ((Eterm) 5) +#define ENC_HASHMAP_NODE ((Eterm) 5) +#define ENC_LAST_ARRAY_ELEMENT ((Eterm) 6) static byte* enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags, @@ -2413,6 +2414,13 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, WSTACK_PUSH2(s, ENC_TERM, *vptr); break; } + case ENC_HASHMAP_NODE: + if (is_list(obj)) { /* leaf node [K|V] */ + ptr = list_val(obj); + WSTACK_PUSH2(s, ENC_TERM, CDR(ptr)); + obj = CAR(ptr); + } + break; case ENC_LAST_ARRAY_ELEMENT: /* obj is the tuple */ { @@ -2611,6 +2619,44 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, } break; + case HASHMAP_DEF: + { + Eterm hdr; + Uint node_sz; + ptr = boxed_val(obj); + hdr = *ptr; + ASSERT(is_header(hdr)); + switch(hdr & _HEADER_MAP_SUBTAG_MASK) { + case HAMT_SUBTAG_HEAD_ARRAY: + *ep++ = MAP_EXT; + ptr++; + put_int32(*ptr, ep); ep += 4; + /*fall through*/ + case HAMT_SUBTAG_NODE_ARRAY: + node_sz = 16; + break; + case HAMT_SUBTAG_HEAD_BITMAP: + *ep++ = MAP_EXT; + ptr++; + put_int32(*ptr, ep); ep += 4; + /*fall through*/ + case HAMT_SUBTAG_NODE_BITMAP: + node_sz = hashmap_bitcount(MAP_HEADER_VAL(hdr)); + ASSERT(node_sz < 17); + break; + default: + erl_exit(1, "bad header\r\n"); + } + + ptr++; + WSTACK_RESERVE(s, node_sz*2); + while(node_sz--) { + WSTACK_FAST_PUSH(s, ENC_HASHMAP_NODE); + WSTACK_FAST_PUSH(s, *ptr++); + } + } + break; + case FLOAT_DEF: GET_DOUBLE(obj, f); if (dflags & DFLAG_NEW_FLOATS) { @@ -4047,6 +4093,38 @@ encode_size_struct_int(TTBSizeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, goto outer_loop; } break; + + case HASHMAP_DEF: + { + Eterm *ptr; + Eterm hdr; + Uint node_sz; + ptr = boxed_val(obj); + hdr = *ptr; + ASSERT(is_header(hdr)); + switch(hdr & _HEADER_MAP_SUBTAG_MASK) { + case HAMT_SUBTAG_HEAD_ARRAY: ptr++; + case HAMT_SUBTAG_NODE_ARRAY: + node_sz = 16; + break; + case HAMT_SUBTAG_HEAD_BITMAP: ptr++; + case HAMT_SUBTAG_NODE_BITMAP: + node_sz = hashmap_bitcount(MAP_HEADER_VAL(hdr)); + ASSERT(node_sz < 17); + break; + default: + erl_exit(1, "bad header\r\n"); + } + + ptr++; + ESTACK_RESERVE(s, node_sz); + while(node_sz--) { + ESTACK_FAST_PUSH(s, *ptr++); + } + result += 1 + 4; /* tag + 4 bytes size */ + } + + break; case FLOAT_DEF: if (dflags & DFLAG_NEW_FLOATS) { result += 9; |