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| author | Björn-Egil Dahlberg <[email protected]> | 2015-09-16 16:21:43 +0200 |
|---|---|---|
| committer | Björn-Egil Dahlberg <[email protected]> | 2015-11-17 14:45:49 +0100 |
| commit | 2e10fe29f61bbe3246902e8eaf1636dd6457979f (patch) | |
| tree | bb9935748a7dc6f6cbf55664e6bf5f19d4cab9fb /erts/emulator | |
| parent | 95b25f7a3a33c43912079af713bf1f386a764071 (diff) | |
| download | otp-2e10fe29f61bbe3246902e8eaf1636dd6457979f.tar.gz otp-2e10fe29f61bbe3246902e8eaf1636dd6457979f.tar.bz2 otp-2e10fe29f61bbe3246902e8eaf1636dd6457979f.zip | |
Add support for HAMT maps in preserved copy
Diffstat (limited to 'erts/emulator')
| -rw-r--r-- | erts/emulator/beam/copy.c | 115 |
1 files changed, 88 insertions, 27 deletions
diff --git a/erts/emulator/beam/copy.c b/erts/emulator/beam/copy.c index c7806ed8ff..aa17713d07 100644 --- a/erts/emulator/beam/copy.c +++ b/erts/emulator/beam/copy.c @@ -438,7 +438,18 @@ Uint size_shared(Eterm obj) } case MAP_HEADER_TAG_HAMT_HEAD_BITMAP : case MAP_HEADER_TAG_HAMT_HEAD_ARRAY : - case MAP_HEADER_TAG_HAMT_NODE_BITMAP : + case MAP_HEADER_TAG_HAMT_NODE_BITMAP : { + Uint n = hashmap_bitcount(MAP_HEADER_VAL(hdr)); + sum += 1 + n + header_arity(hdr); + ptr += 1 + header_arity(hdr); + while (n--) { + obj = *ptr++; + if (!IS_CONST(obj)) { + EQUEUE_PUT(s, obj); + } + } + goto pop_next; + } default: erl_exit(ERTS_ABORT_EXIT, "size_shared: bad hashmap type %d\n", MAP_HEADER_TYPE(hdr)); } @@ -541,18 +552,37 @@ cleanup: } goto cleanup_next; } - case MAP_SUBTAG: { - flatmap_t *mp = (flatmap_t *) ptr; - Uint n = flatmap_get_size(mp) + 1; - ptr += 2; /* hdr + size words */ - while (n--) { - obj = *ptr++; - if (!IS_CONST(obj)) { - EQUEUE_PUT_UNCHECKED(s, obj); + case MAP_SUBTAG: + switch (MAP_HEADER_TYPE(hdr)) { + case MAP_HEADER_TAG_FLATMAP_HEAD : { + flatmap_t *mp = (flatmap_t *) ptr; + Uint n = flatmap_get_size(mp) + 1; + ptr += 2; /* hdr + size words */ + while (n--) { + obj = *ptr++; + if (!IS_CONST(obj)) { + EQUEUE_PUT_UNCHECKED(s, obj); + } + } + goto cleanup_next; + } + case MAP_HEADER_TAG_HAMT_HEAD_BITMAP : + case MAP_HEADER_TAG_HAMT_HEAD_ARRAY : + case MAP_HEADER_TAG_HAMT_NODE_BITMAP : { + Uint n = hashmap_bitcount(MAP_HEADER_VAL(hdr)); + sum += 1 + n + header_arity(hdr); + ptr += 1 + header_arity(hdr); + while (n--) { + obj = *ptr++; + if (!IS_CONST(obj)) { + EQUEUE_PUT_UNCHECKED(s, obj); + } + } + goto cleanup_next; } + default: + erl_exit(ERTS_ABORT_EXIT, "size_shared: bad hashmap type %d\n", MAP_HEADER_TYPE(hdr)); } - goto cleanup_next; - } default: goto cleanup_next; } @@ -1212,7 +1242,22 @@ Uint copy_shared_calculate(Eterm obj, shcopy_info *info, unsigned flags) } case MAP_HEADER_TAG_HAMT_HEAD_BITMAP : case MAP_HEADER_TAG_HAMT_HEAD_ARRAY : - case MAP_HEADER_TAG_HAMT_NODE_BITMAP : + case MAP_HEADER_TAG_HAMT_NODE_BITMAP : { + Uint n = hashmap_bitcount(MAP_HEADER_VAL(hdr)); + sum += 1 + n + header_arity(hdr); + ptr += 1 + header_arity(hdr); + + if (n == 0) { + goto pop_next; + } + while(n--) { + obj = *ptr++; + if (!IS_CONST(obj)) { + EQUEUE_PUT(s, obj); + } + } + goto pop_next; + } default: erl_exit(ERTS_ABORT_EXIT, "copy_shared_calculate: bad hashmap type %d\n", MAP_HEADER_TYPE(hdr)); } @@ -1228,20 +1273,20 @@ Uint copy_shared_calculate(Eterm obj, shcopy_info *info, unsigned flags) case TAG_PRIMARY_IMMED1: pop_next: if (EQUEUE_ISEMPTY(s)) { - // add sentinel to the table - SHTABLE_PUSH(t, THE_NON_VALUE, THE_NON_VALUE, NULL); - // store persistent info - BITSTORE_CLOSE(b); - info->queue_start = s.start; - info->queue_end = s.end; + /* add sentinel to the table */ + SHTABLE_PUSH(t, THE_NON_VALUE, THE_NON_VALUE, NULL); + /* store persistent info */ + BITSTORE_CLOSE(b); + info->queue_start = s.start; + info->queue_end = s.end; info->queue_alloc_type = s.alloc_type; - info->bitstore_start = b.wstart; + info->bitstore_start = b.wstart; info->bitstore_alloc_type = b.alloc_type; - info->shtable_start = t.start; + info->shtable_start = t.start; info->shtable_alloc_type = t.alloc_type; - // single point of return: the size of the object - VERBOSE(DEBUG_SHCOPY, ("[pid=%T] size was: %u\n", myself->common.id, sum)); - return sum; + /* single point of return: the size of the object */ + VERBOSE(DEBUG_SHCOPY, ("[pid=%T] size was: %u\n", myself->common.id, sum)); + return sum; } obj = EQUEUE_GET(s); break; @@ -1457,13 +1502,13 @@ Uint copy_shared_perform(Eterm obj, Uint size, shcopy_info *info, Eterm** hpp, E goto cleanup_next; } case MAP_SUBTAG: + *resp = make_flatmap(hp); + *hp++ = hdr; switch (MAP_HEADER_TYPE(hdr)) { case MAP_HEADER_TAG_FLATMAP_HEAD : { flatmap_t *mp = (flatmap_t *) ptr; Uint n = flatmap_get_size(mp) + 1; - *resp = make_flatmap(hp); - *hp++ = hdr; - *hp++ = *++ptr; + *hp++ = *++ptr; /* keys */ while (n--) { obj = *++ptr; if (IS_CONST(obj)) { @@ -1477,7 +1522,20 @@ Uint copy_shared_perform(Eterm obj, Uint size, shcopy_info *info, Eterm** hpp, E } case MAP_HEADER_TAG_HAMT_HEAD_BITMAP : case MAP_HEADER_TAG_HAMT_HEAD_ARRAY : - case MAP_HEADER_TAG_HAMT_NODE_BITMAP : + *hp++ = *++ptr; /* total map size */ + case MAP_HEADER_TAG_HAMT_NODE_BITMAP : { + Uint n = hashmap_bitcount(MAP_HEADER_VAL(hdr)); + while (n--) { + obj = *++ptr; + if (IS_CONST(obj)) { + *hp++ = obj; + } else { + EQUEUE_PUT_UNCHECKED(s, obj); + *hp++ = HEAP_ELEM_TO_BE_FILLED; + } + } + goto cleanup_next; + } default: erl_exit(ERTS_ABORT_EXIT, "copy_shared_perform: bad hashmap type %d\n", MAP_HEADER_TYPE(hdr)); } @@ -1627,6 +1685,9 @@ Uint copy_shared_perform(Eterm obj, Uint size, shcopy_info *info, Eterm** hpp, E case MAP_HEADER_TAG_HAMT_HEAD_BITMAP : case MAP_HEADER_TAG_HAMT_HEAD_ARRAY : case MAP_HEADER_TAG_HAMT_NODE_BITMAP : + remaining = hashmap_bitcount(MAP_HEADER_VAL(*hscan)); + hscan += MAP_HEADER_ARITY(*hscan) + 1; + break; default: erl_exit(ERTS_ABORT_EXIT, "copy_shared_perform: bad hashmap type %d\n", |