From 1def782cf23736f06d0d6809ea0881f7913796b2 Mon Sep 17 00:00:00 2001 From: "Thiago Marcos P. Santos" Date: Thu, 16 May 2019 16:29:12 +0300 Subject: [core] Add API for invalidating tiles Add new APIs for invalidating tiles, effectively forcing Mapbox GL Native to check with the servers if the tiles are valid before using them. This is more efficient then deleting tiles, because in case of valid tiles, they won't get downloaded. Fixes #4376. --- .../default/src/mbgl/storage/offline_database.cpp | 41 ++++++++++++++++++++++ 1 file changed, 41 insertions(+) (limited to 'platform/default/src/mbgl/storage/offline_database.cpp') diff --git a/platform/default/src/mbgl/storage/offline_database.cpp b/platform/default/src/mbgl/storage/offline_database.cpp index 1639c4484c..0b3bcc049f 100644 --- a/platform/default/src/mbgl/storage/offline_database.cpp +++ b/platform/default/src/mbgl/storage/offline_database.cpp @@ -606,6 +606,47 @@ bool OfflineDatabase::putTile(const Resource::TileData& tile, return true; } +std::exception_ptr OfflineDatabase::invalidateTileCache() try { + // clang-format off + mapbox::sqlite::Query query{ getStatement( + "UPDATE tiles " + "SET expires = 0, must_revalidate = 1 " + "WHERE id NOT IN (" + " SELECT tile_id FROM region_tiles" + ")" + ) }; + // clang-format on + + query.run(); + return nullptr; +} catch (const mapbox::sqlite::Exception& ex) { + handleError(ex, "invalidate tile cache"); + return std::current_exception(); +} + +std::exception_ptr OfflineDatabase::invalidateRegion(int64_t regionID) try { + { + // clang-format off + mapbox::sqlite::Query query{ getStatement( + "UPDATE tiles " + "SET expires = 0, must_revalidate = 1 " + "WHERE id IN (" + " SELECT tile_id FROM region_tiles WHERE region_id = ?" + ")" + ) }; + // clang-format on + + query.bind(1, regionID); + query.run(); + } + + assert(db); + return nullptr; +} catch (const mapbox::sqlite::Exception& ex) { + handleError(ex, "invalidate region"); + return std::current_exception(); +} + expected OfflineDatabase::listRegions() try { mapbox::sqlite::Query query{ getStatement("SELECT id, definition, description FROM regions") }; OfflineRegions result; -- cgit v1.2.1