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* Foreign key support in SQLite is not a persistent setting, so enable

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it at startup.
* Implement negative caching.  Now `make check' passes.
This commit is contained in:
Eelco Dolstra 2010-02-19 17:15:22 +00:00
parent 9c9a88e9e2
commit 1930570ad9
4 changed files with 25 additions and 29 deletions
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21
src/libstore/local-store.cc
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@ -209,6 +209,9 @@ LocalStore::LocalStore()
if (sqlite3_busy_timeout(db, 60000) != SQLITE_OK)
throw SQLiteError(db, "setting timeout");
if (sqlite3_exec(db, "pragma foreign_keys = 1;", 0, 0, 0) != SQLITE_OK)
throw SQLiteError(db, "enabling foreign keys");
/* !!! check whether sqlite has been built with foreign key
support */
@ -288,6 +291,10 @@ void LocalStore::prepareStatements()
"select path from Refs join ValidPaths on referrer = id where reference = (select id from ValidPaths where path = ?);");
stmtInvalidatePath.create(db,
"delete from ValidPaths where path = ?;");
stmtRegisterFailedPath.create(db,
"insert into FailedPaths (path, time) values (?, ?);");
stmtHasPathFailed.create(db,
"select time from FailedPaths where path = ?;");
}
@ -425,13 +432,23 @@ void LocalStore::registerValidPath(const ValidPathInfo & info)
void LocalStore::registerFailedPath(const Path & path)
{
throw Error("not implemented");
if (hasPathFailed(path)) return;
SQLiteStmtUse use(stmtRegisterFailedPath);
stmtRegisterFailedPath.bind(path);
stmtRegisterFailedPath.bind(time(0));
if (sqlite3_step(stmtRegisterFailedPath) != SQLITE_DONE)
throw SQLiteError(db, format("registering failed path `%1%'") % path);
}
bool LocalStore::hasPathFailed(const Path & path)
{
throw Error("not implemented");
SQLiteStmtUse use(stmtHasPathFailed);
stmtHasPathFailed.bind(path);
int res = sqlite3_step(stmtHasPathFailed);
if (res != SQLITE_DONE && res != SQLITE_ROW)
throw SQLiteError(db, "querying whether path failed");
return res == SQLITE_ROW;
}