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xapian-db: improve errors, fix warnings

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This commit is contained in:
Dirk-Jan C. Binnema
2024-08-21 06:18:37 +03:00
parent c58eacc0d5
commit 407c6ed4d1
2 changed files with 19 additions and 15 deletions
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25
lib/mu-xapian-db.hh
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@ -50,6 +50,8 @@ template <typename Func> void
xapian_try(Func&& func) noexcept
try {
func();
} catch (const Mu::Error& me) {
mu_critical("{}: mu error '{}'", __func__, me.what());
} catch (const Xapian::Error& xerr) {
mu_critical("{}: xapian error '{}'", __func__, xerr.get_msg());
} catch (const std::runtime_error& re) {
@ -64,6 +66,9 @@ template <typename Func, typename Default = std::invoke_result<Func>> auto
xapian_try(Func&& func, Default&& def) noexcept -> std::decay_t<decltype(func())>
try {
return func();
} catch (const Mu::Error& me) {
mu_critical("{}: mu error '{}'", __func__, me.what());
return static_cast<Default>(def);
} catch (const Xapian::DocNotFoundError& xerr) {
return static_cast<Default>(def);
} catch (const Xapian::Error& xerr) {
@ -84,6 +89,9 @@ template <typename Func> auto
xapian_try_result(Func&& func) noexcept -> std::decay_t<decltype(func())>
try {
return func();
} catch (const Mu::Error& me) {
return Err(std::move(me));
} catch (const Xapian::DatabaseNotFoundError& nferr) {
return Err(Error{Error::Code::Xapian, "failed to open database"}.
add_hint("Try (re)creating using `mu init'"));
@ -128,13 +136,13 @@ struct MetadataIface {
/// In-memory db
struct MemDb: public MetadataIface {
struct MemDb final: public MetadataIface {
/**
* Create a new memdb
*
* @param readonly read-only? (for testing)
*/
MemDb(bool readonly=false):read_only_{readonly} {}
explicit MemDb(bool readonly=false):read_only_{readonly} {}
/**
* Set some metadata
@ -188,7 +196,7 @@ private:
/**
* Fairly thin wrapper around Xapian::Database and Xapian::WritableDatabase
*/
class XapianDb: public MetadataIface {
class XapianDb final: public MetadataIface {
public:
/**
* Type of database to create.
@ -211,8 +219,9 @@ public:
/**
* DTOR
*/
~XapianDb() {
if (!read_only())
~XapianDb() override {
// shouldn't use read_only() here, since that's virtual.
if (std::holds_alternative<Xapian::WritableDatabase>(db_))
request_commit(true/*force*/);
mu_debug("closing db");
}
@ -237,7 +246,9 @@ public:
*
* @return path to database
*/
const std::string& path() const;
const std::string& path() const {
return path_;
}
/**
* Get a description of the Xapian database
@ -500,7 +511,7 @@ private:
Xapian::WritableDatabase& wdb();
std::string path_;
DbType db_;
DbType db_;
size_t changes_{};
bool in_transaction_{};
size_t batch_size_;