From 1144d52d67083cb2f2709f2f43c3b7c259c37d9c Mon Sep 17 00:00:00 2001 From: David Robillard Date: Fri, 10 Aug 2012 03:20:03 +0000 Subject: Shave 8 bytes off of SordNode. git-svn-id: http://svn.drobilla.net/sord/trunk@251 3d64ff67-21c5-427c-a301-fe4f08042e5a --- src/sord.c | 85 +++++++++++++++++++++++++++++------------------------ src/sord_internal.h | 22 ++++++++++---- 2 files changed, 63 insertions(+), 44 deletions(-) (limited to 'src') diff --git a/src/sord.c b/src/sord.c index 819aab1..9510d50 100644 --- a/src/sord.c +++ b/src/sord.c @@ -148,11 +148,9 @@ sord_node_hash(const void* n) const SordNode* node = (const SordNode*)n; uint32_t hash = zix_digest_start(); hash = zix_digest_add(hash, node->node.buf, node->node.n_bytes); - hash = zix_digest_add(hash, node->lang, sizeof(node->lang)); hash = zix_digest_add(hash, &node->node.type, sizeof(node->node.type)); - if (node->datatype) { - hash = zix_digest_add( - hash, node->datatype->node.buf, node->datatype->node.n_bytes); + if (node->node.type == SERD_LITERAL) { + hash = zix_digest_add(hash, &node->meta.lit, sizeof(node->meta.lit)); } return hash; } @@ -164,9 +162,12 @@ sord_node_hash_equal(const void* a, const void* b) const SordNode* b_node = (const SordNode*)b; return (a_node == b_node) || ((a_node->node.type == b_node->node.type) && - (a_node->datatype == b_node->datatype) && - serd_node_equals(&a_node->node, &b_node->node) && - !strncmp(a_node->lang, b_node->lang, sizeof(a_node->lang))); + (a_node->node.type != SERD_LITERAL || + (a_node->meta.lit.datatype == b_node->meta.lit.datatype && + !strncmp(a_node->meta.lit.lang, + b_node->meta.lit.lang, + sizeof(a_node->meta.lit.lang)))) && + (serd_node_equals(&a_node->node, &b_node->node))); } static void @@ -201,7 +202,9 @@ static void free_node_entry(const void* value, void* user_data) { const SordNode* node = (const SordNode*)value; - sord_node_free((SordWorld*)user_data, node->datatype); + if (node->node.type == SERD_LITERAL) { + sord_node_free((SordWorld*)user_data, node->meta.lit.datatype); + } free((uint8_t*)node->node.buf); } @@ -242,15 +245,15 @@ sord_node_compare(const SordNode* a, const SordNode* b) (const char*)sord_node_get_string(b)); if (cmp == 0) { // Note: Can't use sord_node_compare here since it does wildcards - if (!a->datatype || !b->datatype) { - cmp = a->datatype - b->datatype; + if (!a->meta.lit.datatype || !b->meta.lit.datatype) { + cmp = a->meta.lit.datatype - b->meta.lit.datatype; } else { - cmp = strcmp((const char*)a->datatype->node.buf, - (const char*)b->datatype->node.buf); + cmp = strcmp((const char*)a->meta.lit.datatype->node.buf, + (const char*)b->meta.lit.datatype->node.buf); } } if (cmp == 0) { - cmp = strcmp(a->lang, b->lang); + cmp = strcmp(a->meta.lit.lang, b->meta.lit.lang); } default: break; @@ -659,17 +662,15 @@ sord_node_free_internal(SordWorld* world, SordNode* node) { assert(node->refs == 0); - // Cache members to free since removing from hash will free the node - SordNode* const datatype = node->datatype; - const uint8_t* const buf = node->node.buf; + // Cache pointer to buffer to free after node removal and destruction + const uint8_t* const buf = node->node.buf; // Remove node from hash (which frees the node) if (zix_hash_remove(world->nodes, node)) { error(world, SERD_ERR_INTERNAL, "failed to remove node from hash\n"); } - // Free members - sord_node_free(world, datatype); + // Free buffer free((uint8_t*)buf); } @@ -679,8 +680,8 @@ sord_add_quad_ref(SordModel* sord, const SordNode* node, SordQuadIndex i) if (node) { assert(node->refs > 0); ++((SordNode*)node)->refs; - if (i == SORD_OBJECT) { - ++((SordNode*)node)->refs_as_obj; + if (node->node.type != SERD_LITERAL && i == SORD_OBJECT) { + ++((SordNode*)node)->meta.res.refs_as_obj; } } } @@ -693,9 +694,9 @@ sord_drop_quad_ref(SordModel* sord, const SordNode* node, SordQuadIndex i) } assert(node->refs > 0); - if (i == SORD_OBJECT) { - assert(node->refs_as_obj > 0); - --((SordNode*)node)->refs_as_obj; + if (node->node.type != SERD_LITERAL && i == SORD_OBJECT) { + assert(node->meta.res.refs_as_obj > 0); + --((SordNode*)node)->meta.res.refs_as_obj; } if (--((SordNode*)node)->refs == 0) { sord_node_free_internal(sord_get_world(sord), (SordNode*)node); @@ -904,28 +905,31 @@ sord_node_get_type(const SordNode* node) } const uint8_t* -sord_node_get_string(const SordNode* ref) +sord_node_get_string(const SordNode* node) { - return ref->node.buf; + return node->node.buf; } const uint8_t* -sord_node_get_string_counted(const SordNode* ref, size_t* len) +sord_node_get_string_counted(const SordNode* node, size_t* len) { - *len = ref->node.n_chars; - return ref->node.buf; + *len = node->node.n_chars; + return node->node.buf; } const char* -sord_node_get_language(const SordNode* ref) +sord_node_get_language(const SordNode* node) { - return ref->lang[0] ? ref->lang : NULL; + if (node->node.type != SERD_LITERAL || !node->meta.lit.lang[0]) { + return NULL; + } + return node->meta.lit.lang; } SordNode* -sord_node_get_datatype(const SordNode* ref) +sord_node_get_datatype(const SordNode* node) { - return ref->datatype; + return (node->node.type == SERD_LITERAL) ? node->meta.lit.datatype : NULL; } SerdNodeFlags @@ -937,7 +941,7 @@ sord_node_get_flags(const SordNode* node) bool sord_node_is_inline_object(const SordNode* node) { - return (node->node.type == SERD_BLANK) && (node->refs_as_obj == 1); + return (node->node.type == SERD_BLANK) && (node->meta.res.refs_as_obj == 1); } static SordNode* @@ -954,7 +958,9 @@ sord_insert_node(SordWorld* world, const SordNode* key, bool copy) if (copy) { node->node.buf = sord_strndup(node->node.buf, node->node.n_bytes); } - node->datatype = sord_node_copy(node->datatype); + if (node->node.type == SERD_LITERAL) { + node->meta.lit.datatype = sord_node_copy(node->meta.lit.datatype); + } return node; default: assert(!node); @@ -981,7 +987,7 @@ sord_new_uri_counted(SordWorld* world, const uint8_t* str, } const SordNode key = { - NULL, 1, 0, "", { str, n_bytes, n_chars, 0, SERD_URI } + { str, n_bytes, n_chars, 0, SERD_URI }, 1, { { 0 } } }; return sord_insert_node(world, &key, copy); @@ -1018,7 +1024,7 @@ sord_new_blank_counted(SordWorld* world, const uint8_t* str, size_t n_bytes, size_t n_chars) { const SordNode key = { - NULL, 1, 0, "", { str, n_bytes, n_chars, 0, SERD_BLANK } + { str, n_bytes, n_chars, 0, SERD_BLANK }, 1, { { 0 } } }; return sord_insert_node(world, &key, true); @@ -1041,11 +1047,12 @@ sord_new_literal_counted(SordWorld* world, const char* lang) { SordNode key = { - datatype, 1, 0, "", { str, n_bytes, n_chars, flags, SERD_LITERAL } + { str, n_bytes, n_chars, flags, SERD_LITERAL }, 1, { { 0 } } }; - memset(key.lang, 0, sizeof(key.lang)); + key.meta.lit.datatype = datatype; + memset(key.meta.lit.lang, 0, sizeof(key.meta.lit.lang)); if (lang) { - strncpy(key.lang, lang, sizeof(key.lang)); + strncpy(key.meta.lit.lang, lang, sizeof(key.meta.lit.lang)); } return sord_insert_node(world, &key, true); diff --git a/src/sord_internal.h b/src/sord_internal.h index 03050db..16d6ef2 100644 --- a/src/sord_internal.h +++ b/src/sord_internal.h @@ -22,13 +22,25 @@ #include "sord/sord.h" +/** Resource node metadata */ +typedef struct { + size_t refs_as_obj; ///< References as a quad object +} SordResourceMetadata; + +/** Literal node metadata */ +typedef struct { + SordNode* datatype; ///< Optional literal data type URI + char lang[16]; ///< Optional language tag +} SordLiteralMetadata; + /** Node */ struct SordNodeImpl { - SordNode* datatype; ///< Literal data type (ID of a URI node, or 0) - size_t refs; ///< Reference count (# of containing quads) - size_t refs_as_obj; ///< References as a quad object - char lang[16]; ///< Language tag - SerdNode node; ///< Serd node + SerdNode node; ///< Serd node + size_t refs; ///< Reference count (# of containing quads) + union { + SordResourceMetadata res; + SordLiteralMetadata lit; + } meta; }; #endif /* SORD_SORD_INTERNAL_H */ -- cgit v1.2.1