Add subject to key/value chunks in RDFF (i.e. store triples).
git-svn-id: svn://localhost/ardour2/branches/3.0@9224 d708f5d6-7413-0410-9779-e7cbd77b26cf
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02d551d183
@ -367,10 +367,8 @@ LV2Plugin::lv2_persist_store_callback(void* callback_data,
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uint32_t type,
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bool pod)
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{
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cout << "LV2 PERSIST STORE " << key
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<< " = " << value
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<< " :: " << type
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<< " POD: " << pod << endl;
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DEBUG_TRACE(DEBUG::LV2, string_compose("persist store %1\n",
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_uri_map.id_to_uri(NULL, key)));
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PersistState* state = (PersistState*)callback_data;
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state->add_uri(key, _uri_map.id_to_uri(NULL, key));
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@ -385,7 +383,8 @@ LV2Plugin::lv2_persist_retrieve_callback(void* callback_data,
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uint32_t* type,
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bool* pod)
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{
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cout << "LV2 PERSIST RETRIEVE " << _uri_map.id_to_uri(NULL, key) << endl;
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DEBUG_TRACE(DEBUG::LV2, string_compose("persist retrieve %1\n",
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_uri_map.id_to_uri(NULL, key)));
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PersistState* state = (PersistState*)callback_data;
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PersistState::Values::const_iterator i = state->values.find(key);
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@ -447,8 +446,10 @@ LV2Plugin::add_state(XMLNode* root) const
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// Write all referenced URIs to state file
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for (PersistState::URIs::const_iterator i = state.uris.begin();
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i != state.uris.end(); ++i) {
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rdff_write_uri(file, i->first,
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i->second.c_str(), i->second.length() + 1);
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rdff_write_uri(file,
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i->first,
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i->second.length(),
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i->second.c_str());
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}
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// Write all values to state file
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@ -456,11 +457,12 @@ LV2Plugin::add_state(XMLNode* root) const
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i != state.values.end(); ++i) {
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const uint32_t key = i->first;
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const PersistValue& val = i->second;
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rdff_write_value(file,
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key,
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val.value,
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val.size,
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val.type);
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rdff_write_triple(file,
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0,
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key,
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val.type,
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val.size,
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val.value);
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}
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// Close state file
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@ -644,13 +646,14 @@ LV2Plugin::set_state(const XMLNode& node, int version)
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printf("READ URI %u: %s\n", body->id, body->uri);
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state.add_uri(body->id, body->uri);
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} else if (!strncmp(chunk->type, "KVAL", 4)) {
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RDFFValueChunk* body = (RDFFValueChunk*)chunk->data;
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RDFFTripleChunk* body = (RDFFTripleChunk*)chunk->data;
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printf("READ VAL %u = %s (size: %u type: %u)\n",
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body->key, body->value, body->size, body->type);
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state.add_value(body->key,
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body->value,
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body->size,
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body->type,
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body->predicate, body->object,
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body->object_size, body->object_type);
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state.add_value(body->predicate,
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body->object,
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body->object_size,
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body->object_type,
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true);
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}
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}
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@ -35,8 +35,8 @@
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#define CHUNK_ID_LEN 4
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static const char FILE_TYPE[CHUNK_ID_LEN] = "RDFF"; /* RDFF File ID */
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static const char CHUNK_KVAL[CHUNK_ID_LEN] = "KVAL"; /* Key/Value Chunk ID */
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static const char CHUNK_URID[CHUNK_ID_LEN] = "URID"; /* URI-ID Chunk ID*/
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static const char CHUNK_TRIP[CHUNK_ID_LEN] = "trip"; /* Triple Chunk ID */
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static const char CHUNK_URID[CHUNK_ID_LEN] = "urid"; /* URI-ID Chunk ID*/
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struct _RDFF {
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FILE* fd;
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@ -98,8 +98,8 @@ rdff_open(const char* path, bool write)
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RDFFStatus
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rdff_write_uri(RDFF file,
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uint32_t id,
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const char* uri,
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uint32_t len)
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uint32_t len,
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const char* uri)
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{
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const uint32_t chunk_size = sizeof(id) + len + 1;
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WRITE(CHUNK_URID, CHUNK_ID_LEN, 1, file->fd);
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@ -114,20 +114,22 @@ rdff_write_uri(RDFF file,
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}
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RDFFStatus
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rdff_write_value(RDFF file,
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uint32_t key,
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const void* value,
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uint32_t size,
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uint32_t type)
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rdff_write_triple(RDFF file,
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uint32_t subject,
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uint32_t predicate,
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uint32_t object_type,
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uint32_t object_size,
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const void* object)
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{
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const uint32_t chunk_size = sizeof(key) + sizeof(type) + sizeof(size) + size;
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WRITE(CHUNK_KVAL, CHUNK_ID_LEN, 1, file->fd);
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WRITE(&chunk_size, sizeof(chunk_size), 1, file->fd);
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WRITE(&key, sizeof(key), 1, file->fd);
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WRITE(&type, sizeof(type), 1, file->fd);
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WRITE(&size, sizeof(size), 1, file->fd);
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WRITE(value, size, 1, file->fd);
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if ((size % 2)) {
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const uint32_t chunk_size = sizeof(RDFFTripleChunk) + object_size;
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WRITE(CHUNK_TRIP, CHUNK_ID_LEN, 1, file->fd);
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WRITE(&chunk_size, sizeof(chunk_size), 1, file->fd);
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WRITE(&subject, sizeof(subject), 1, file->fd);
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WRITE(&predicate, sizeof(predicate), 1, file->fd);
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WRITE(&object_type, sizeof(object_type), 1, file->fd);
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WRITE(&object_size, sizeof(object_size), 1, file->fd);
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WRITE(object, object_size, 1, file->fd);
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if ((object_size % 2)) {
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WRITE("", 1, 1, file->fd); /* write pad */
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}
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file->size += 8 + chunk_size;
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@ -199,17 +201,18 @@ main(int argc, char** argv)
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char uri[64];
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for (int i = 0; i < N_URIS; ++i) {
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snprintf(uri, sizeof(uri), "http://example.org/uri%02d", i + 1);
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rdff_write_uri(file, i + 1, uri, strlen(uri) + 1);
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rdff_write_uri(file, i + 1, strlen(uri), uri);
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}
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char val[6];
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for (int i = 0; i < N_RECORDS; ++i) {
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snprintf(val, sizeof(val), "VAL%02d", i);
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rdff_write_value(file,
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rand() % N_URIS,
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val,
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sizeof(val),
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0);
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rdff_write_triple(file,
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0,
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rand() % N_URIS,
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0,
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sizeof(val),
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val);
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}
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rdff_close(file);
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@ -222,8 +225,8 @@ main(int argc, char** argv)
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chunk->size = 0;
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for (int i = 0; i < N_URIS; ++i) {
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if (rdff_read_chunk(file, &chunk)
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|| strncmp(chunk->type, "URID", 4)) {
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fprintf(stderr, "error: expected URID chunk\n");
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|| strncmp(chunk->type, CHUNK_URID, 4)) {
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fprintf(stderr, "error: expected %s chunk\n", CHUNK_URID);
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goto fail;
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}
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RDFFURIChunk* body = (RDFFURIChunk*)chunk->data;
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@ -232,12 +235,12 @@ main(int argc, char** argv)
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for (int i = 0; i < N_RECORDS; ++i) {
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if (rdff_read_chunk(file, &chunk)
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|| strncmp(chunk->type, "KVAL", 4)) {
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fprintf(stderr, "error: expected KVAL chunk\n");
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|| strncmp(chunk->type, CHUNK_TRIP, 4)) {
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fprintf(stderr, "error: expected %s chunk\n", CHUNK_TRIP);
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goto fail;
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}
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RDFFValueChunk* body = (RDFFValueChunk*)chunk->data;
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printf("KEY %d = %s\n", body->key, body->value);
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RDFFTripleChunk* body = (RDFFTripleChunk*)chunk->data;
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printf("KEY %d = %s\n", body->predicate, body->object);
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}
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free(chunk);
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@ -65,7 +65,7 @@ typedef struct {
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} PACKED RDFFChunk;
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/**
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Body of a URID chunk.
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Body of a RDFF "urid" chunk.
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*/
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typedef struct {
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uint32_t id; /**< Numeric ID of URI in this RDFF. */
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@ -73,14 +73,15 @@ typedef struct {
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} PACKED RDFFURIChunk;
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/**
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Body of a KVAL chunk.
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Body of a RDFF "trip" chunk.
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*/
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typedef struct {
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uint32_t key; /**< Predicate URI ID. */
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uint32_t type; /**< Type URI ID. */
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uint32_t size; /**< Size of object data. */
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char value[]; /**< Object data. */
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} PACKED RDFFValueChunk;
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uint32_t subject; /**< Subject URI ID. */
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uint32_t predicate; /**< Predicate URI ID. */
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uint32_t object_type; /**< Object type URI ID. */
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uint32_t object_size; /**< Size of object data. */
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char object[]; /**< Object data. */
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} PACKED RDFFTripleChunk;
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/**
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Open/Create a new RDFF file.
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@ -94,18 +95,19 @@ rdff_open(const char* path, bool write);
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RDFFStatus
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rdff_write_uri(RDFF file,
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uint32_t id,
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const char* uri,
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uint32_t len);
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uint32_t len,
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const char* uri);
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/**
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Write a key/value record to @a file.
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*/
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RDFFStatus
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rdff_write_value(RDFF file,
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uint32_t key,
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const void* value,
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uint32_t size,
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uint32_t type);
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rdff_write_triple(RDFF file,
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uint32_t subject,
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uint32_t predicate,
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uint32_t object_type,
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uint32_t object_size,
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const void* object);
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/**
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Read a chunk from @a file.
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