[tracker] libtracker-data: Delete collation/locale change mechanisms

[Carlos Garnacho <carlosg src gnome org>]

commit 9de38a3a4229def9a53e6d32854e4f778ac10f56
Author: Carlos Garnacho <carlosg gnome org>
Date:   Sat Oct 22 00:18:11 2016 +0200

    libtracker-data: Delete collation/locale change mechanisms
    
    Those are entirely unused, we support no live locale nor collation
    changes. The n_active_cursors field is now unused, although it's
    been left as it's useful to keep track of the amount of active
    statements/cursors in an interface.

 src/libtracker-data/tracker-db-interface-sqlite.c |   38 +++------------------
 1 files changed, 5 insertions(+), 33 deletions(-)
---
diff --git a/src/libtracker-data/tracker-db-interface-sqlite.c 
b/src/libtracker-data/tracker-db-interface-sqlite.c
index d9e448f..a685df1 100644
--- a/src/libtracker-data/tracker-db-interface-sqlite.c
+++ b/src/libtracker-data/tracker-db-interface-sqlite.c
@@ -82,10 +82,6 @@ struct TrackerDBInterface {
 
        GSList *function_data;
 
-       /* Collation and locale change */
-       gpointer locale_notification_id;
-       gint collator_reset_requested;
-
        /* Number of active cursors */
        gint n_active_cursors;
 
@@ -2180,12 +2176,7 @@ execute_stmt (TrackerDBInterface  *interface,
 
        result = SQLITE_OK;
 
-       /* Statement is going to start, check if we got a request to reset the
-        * collator, and if so, do it. */
-       if (g_atomic_int_add (&interface->n_active_cursors, 1) == 0 &&
-           g_atomic_int_compare_and_exchange (&(interface->collator_reset_requested), TRUE, FALSE)) {
-               tracker_db_interface_sqlite_reset_collator (interface);
-       }
+       g_atomic_int_inc (&interface->n_active_cursors);
 
        while (result == SQLITE_OK  ||
               result == SQLITE_ROW) {
@@ -2212,18 +2203,9 @@ execute_stmt (TrackerDBInterface  *interface,
                }
        }
 
+       g_atomic_int_add (&interface->n_active_cursors, -1);
 
-       if (result == SQLITE_DONE) {
-               /* Statement finished, check if we got a request to reset the
-                * collator, and if so, do it.
-                */
-               if (g_atomic_int_dec_and_test (&interface->n_active_cursors) &&
-                   g_atomic_int_compare_and_exchange (&(interface->collator_reset_requested), TRUE, FALSE)) {
-                       tracker_db_interface_sqlite_reset_collator (interface);
-               }
-       } else {
-               g_atomic_int_add (&interface->n_active_cursors, -1);
-
+       if (result != SQLITE_DONE) {
                /* This is rather fatal */
                if (errno != ENOSPC &&
                    (sqlite3_errcode (interface->db) == SQLITE_IOERR ||
@@ -2417,13 +2399,8 @@ tracker_db_cursor_close (TrackerDBCursor *cursor)
                return;
        }
 
-       /* As soon as we finalize the cursor, check if we need a collator reset
-        * and notify the iface about the removed cursor */
        iface = cursor->ref_stmt->db_interface;
-       if (g_atomic_int_dec_and_test (&iface->n_active_cursors) &&
-           g_atomic_int_compare_and_exchange (&(iface->collator_reset_requested), TRUE, FALSE)) {
-               tracker_db_interface_sqlite_reset_collator (iface);
-       }
+       g_atomic_int_add (&iface->n_active_cursors, -1);
 
        if (cursor->threadsafe) {
                tracker_db_manager_lock ();
@@ -2553,13 +2530,8 @@ tracker_db_cursor_sqlite_new (TrackerDBStatement  *ref_stmt,
        TrackerDBCursor *cursor;
        TrackerDBInterface *iface;
 
-       /* As soon as we create a cursor, check if we need a collator reset
-        * and notify the iface about the new cursor */
        iface = ref_stmt->db_interface;
-       if (g_atomic_int_add (&iface->n_active_cursors, 1) == 0 &&
-           g_atomic_int_compare_and_exchange (&(iface->collator_reset_requested), TRUE, FALSE)) {
-               tracker_db_interface_sqlite_reset_collator (iface);
-       }
+       g_atomic_int_inc (&iface->n_active_cursors);
 
        cursor = g_object_new (TRACKER_TYPE_DB_CURSOR, NULL);