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author | Carlos Garnacho <carlosg@gnome.org> | 2018-08-31 11:43:01 +0200 |
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committer | Carlos Garnacho <carlosg@gnome.org> | 2018-11-13 11:17:31 +0100 |
commit | 2f1f5c1875b78c2e3e6ed8eac5e8dc0a67d94f6f (patch) | |
tree | 17fa638258e6e7170441b87ca292afaa2d8e7385 | |
parent | 1c3a6f2dca2b3eb30822fbc34f2e171260bf590b (diff) | |
download | tracker-2f1f5c1875b78c2e3e6ed8eac5e8dc0a67d94f6f.tar.gz |
libtracker-data: Add internal UUID generator SQL function
-rw-r--r-- | src/libtracker-data/meson.build | 1 | ||||
-rw-r--r-- | src/libtracker-data/tracker-data.h | 1 | ||||
-rw-r--r-- | src/libtracker-data/tracker-db-interface-sqlite.c | 47 | ||||
-rw-r--r-- | src/libtracker-data/tracker-uuid.c | 46 | ||||
-rw-r--r-- | src/libtracker-data/tracker-uuid.h | 28 |
5 files changed, 123 insertions, 0 deletions
diff --git a/src/libtracker-data/meson.build b/src/libtracker-data/meson.build index 88c2be95b..9eaef5bf1 100644 --- a/src/libtracker-data/meson.build +++ b/src/libtracker-data/meson.build @@ -62,6 +62,7 @@ libtracker_data = library('tracker-data', 'tracker-sparql-parser.c', 'tracker-sparql-types.c', 'tracker-sparql.c', + 'tracker-uuid.c', tracker_common_enum_header, tracker_data_enums[0], tracker_data_enums[1], diff --git a/src/libtracker-data/tracker-data.h b/src/libtracker-data/tracker-data.h index 5ed5a7c4b..7188774e0 100644 --- a/src/libtracker-data/tracker-data.h +++ b/src/libtracker-data/tracker-data.h @@ -42,6 +42,7 @@ #include "tracker-property.h" #include "tracker-sparql-query.h" #include "tracker-sparql.h" +#include "tracker-uuid.h" #undef __LIBTRACKER_DATA_INSIDE__ diff --git a/src/libtracker-data/tracker-db-interface-sqlite.c b/src/libtracker-data/tracker-db-interface-sqlite.c index da50e1f5b..a8878992a 100644 --- a/src/libtracker-data/tracker-db-interface-sqlite.c +++ b/src/libtracker-data/tracker-db-interface-sqlite.c @@ -55,6 +55,7 @@ #include "tracker-db-interface-sqlite.h" #include "tracker-db-manager.h" #include "tracker-data-enum-types.h" +#include "tracker-uuid.h" typedef struct { TrackerDBStatement *head; @@ -1366,6 +1367,50 @@ stmt_step (sqlite3_stmt *stmt) return result; } +static void +function_sparql_uuid (sqlite3_context *context, + int argc, + sqlite3_value *argv[]) +{ + gchar *uuid = NULL; + sqlite3_stmt *stmt; + sqlite3 *db; + gint result; + + if (argc > 1) { + sqlite3_result_error (context, "Invalid argument count", -1); + return; + } + + db = sqlite3_context_db_handle (context); + + result = sqlite3_prepare_v2 (db, "SELECT ID FROM Resource WHERE Uri=?", + -1, &stmt, NULL); + if (result != SQLITE_OK) { + sqlite3_result_error (context, sqlite3_errstr (result), -1); + return; + } + + do { + g_clear_pointer (&uuid, g_free); + uuid = tracker_generate_uuid (); + + sqlite3_reset (stmt); + sqlite3_bind_text (stmt, 1, uuid, -1, SQLITE_TRANSIENT); + result = stmt_step (stmt); + } while (result == SQLITE_ROW); + + sqlite3_finalize (stmt); + + if (result != SQLITE_DONE) { + sqlite3_result_error (context, sqlite3_errstr (result), -1); + g_free (uuid); + return; + } + + sqlite3_result_text (context, uuid, -1, g_free); +} + static int check_interrupt (void *user_data) { @@ -1430,6 +1475,8 @@ initialize_functions (TrackerDBInterface *db_interface) { "SparqlFloor", 1, SQLITE_ANY | SQLITE_DETERMINISTIC, function_sparql_floor }, { "SparqlRand", 0, SQLITE_ANY, function_sparql_rand }, + /* UUID */ + { "SparqlUUID", 0, SQLITE_ANY, function_sparql_uuid }, }; for (i = 0; i < G_N_ELEMENTS (functions); i++) { diff --git a/src/libtracker-data/tracker-uuid.c b/src/libtracker-data/tracker-uuid.c new file mode 100644 index 000000000..fec35efa4 --- /dev/null +++ b/src/libtracker-data/tracker-uuid.c @@ -0,0 +1,46 @@ +/* + * Copyright (C) 2008-2010, Nokia + * Copyright (C) 2018, Red Hat Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + */ + +#include "config.h" +#include "tracker-uuid.h" + +#if GLIB_CHECK_VERSION (2, 52, 0) +#include <uuid/uuid.h> +#endif + +gchar * +tracker_generate_uuid (void) +{ + gchar *result; +#if GLIB_CHECK_VERSION (2, 52, 0) + gchar *uuid = g_uuid_string_random (); + result = g_strdup_printf ("urn:uuid:%s", uuid); + g_free (uuid); +#else + uuid_t base = { 0, }; + gchar uuid[37]; + + uuid_generate (base); + uuid_unparse_lower (base, uuid); + result = g_strdup_printf ("urn:uuid:%s", uuid); +#endif + + return result; +} diff --git a/src/libtracker-data/tracker-uuid.h b/src/libtracker-data/tracker-uuid.h new file mode 100644 index 000000000..744171e32 --- /dev/null +++ b/src/libtracker-data/tracker-uuid.h @@ -0,0 +1,28 @@ +/* + * Copyright (C) 2008-2010, Nokia + * Copyright (C) 2018, Red Hat Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + */ + +#ifndef __TRACKER_UUID_H__ +#define __TRACKER_UUID_H__ + +#include <glib.h> + +gchar * tracker_generate_uuid (void); + +#endif /* __TRACKER_UUID_H__ */ |