a5987afeb9
Force drop the table when the version doesn't match. Previously it was assumed (my bad) that CREATE TABLE IF NOT EXISTS would compare the table schema, which is not true.
68 lines
1.6 KiB
C++
68 lines
1.6 KiB
C++
#ifndef MBGL_STORAGE_DEFAULT_SQLITE_CACHE_IMPL
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#define MBGL_STORAGE_DEFAULT_SQLITE_CACHE_IMPL
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#include <mbgl/storage/sqlite_cache.hpp>
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#include <mbgl/util/chrono.hpp>
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namespace mapbox {
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namespace sqlite {
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class Database;
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class Statement;
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}
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}
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namespace mbgl {
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class SQLiteCache::Impl {
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public:
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explicit Impl(const std::string &path = ":memory:");
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~Impl();
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void setMaximumCacheSize(uint64_t size);
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void setMaximumCacheEntrySize(uint64_t size);
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void get(const Resource&, Callback);
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void put(const Resource& resource, std::shared_ptr<const Response> response);
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void refresh(const Resource& resource, Seconds expires);
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private:
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void initializeDatabase();
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int cachePageSize();
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uint64_t cacheHardSize();
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uint64_t cacheSoftSize();
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uint64_t softSize = 0;
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bool softSizeDirty = true;
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bool needsPruning();
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void pruneEntries();
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void createDatabase();
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void createSchema();
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int schemaVersion() const;
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void ensureSchemaVersion();
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int pageSize = 0;
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uint64_t maximumCacheSize;
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uint64_t maximumCacheEntrySize;
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const std::string path;
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std::unique_ptr<::mapbox::sqlite::Database> db;
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std::unique_ptr<::mapbox::sqlite::Statement> getStmt;
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std::unique_ptr<::mapbox::sqlite::Statement> putStmt;
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std::unique_ptr<::mapbox::sqlite::Statement> refreshStmt;
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std::unique_ptr<::mapbox::sqlite::Statement> countStmt;
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std::unique_ptr<::mapbox::sqlite::Statement> freeStmt;
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std::unique_ptr<::mapbox::sqlite::Statement> pruneStmt;
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std::unique_ptr<::mapbox::sqlite::Statement> accessedStmt;
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bool schema = false;
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};
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} // namespace mbgl
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#endif
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