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Merge pull request #1121 from MayeulC/32bit

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Better handle 32-bit platforms by limitting database size
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DeepBlueV7.X 2022-07-20 14:04:06 +02:00 committed by GitHub
commit a5dafec147
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1 changed files with 10 additions and 3 deletions
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13
src/Cache.cpp
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@ -46,12 +46,19 @@ static const std::string_view OLM_ACCOUNT_KEY("olm_account");
static const std::string_view CACHE_FORMAT_VERSION_KEY("cache_format_version"); static const std::string_view CACHE_FORMAT_VERSION_KEY("cache_format_version");
static const std::string_view CURRENT_ONLINE_BACKUP_VERSION("current_online_backup_version"); static const std::string_view CURRENT_ONLINE_BACKUP_VERSION("current_online_backup_version");
constexpr size_t MAX_RESTORED_MESSAGES = 30'000;
constexpr auto DB_SIZE = 32ULL * 1024ULL * 1024ULL * 1024ULL; // 32 GB
constexpr auto MAX_DBS = 32384UL; constexpr auto MAX_DBS = 32384UL;
constexpr auto BATCH_SIZE = 100; constexpr auto BATCH_SIZE = 100;
#if Q_PROCESSOR_WORDSIZE >= 5 // 40-bit or more, up to 2^(8*WORDSIZE) words addressable.
constexpr auto DB_SIZE = 32ULL * 1024ULL * 1024ULL * 1024ULL; // 32 GB
constexpr size_t MAX_RESTORED_MESSAGES = 30'000;
#elif Q_PROCESSOR_WORDSIZE == 4 // 32-bit address space limits mmaps
constexpr auto DB_SIZE = 1ULL * 1024ULL * 1024ULL * 1024ULL; // 1 GB
constexpr size_t MAX_RESTORED_MESSAGES = 5'000;
#else
#error Not enough virtual address space for the database on target CPU
#endif
//! Cache databases and their format. //! Cache databases and their format.
//! //!
//! Contains UI information for the joined rooms. (i.e name, topic, avatar url etc). //! Contains UI information for the joined rooms. (i.e name, topic, avatar url etc).