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* Ouch. A store upgrade could cause a substituter to be triggered,

Browse source 
causing a deadlock.
This commit is contained in:
Eelco Dolstra 2011-09-12 09:07:43 +00:00
parent 281e3ed059
commit 13114daa3e
3 changed files with 6 additions and 5 deletions
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3
src/libstore/derivations.cc
View file

@ -239,7 +239,8 @@ Hash hashDerivationModulo(StoreAPI & store, Derivation drv)
foreach (DerivationInputs::const_iterator, i, drv.inputDrvs) {
Hash h = drvHashes[i->first];
if (h.type == htUnknown) {
Derivation drv2 = derivationFromPath(store, i->first);
assert(store.isValidPath(i->first));
Derivation drv2 = parseDerivation(readFile(i->first));
h = hashDerivationModulo(store, drv2);
drvHashes[i->first] = h;
}

6
src/libstore/local-store.cc
View file

@ -510,7 +510,7 @@ void LocalStore::checkDerivationOutputs(const Path & drvPath, const Derivation &
}
unsigned long long LocalStore::addValidPath(const ValidPathInfo & info)
unsigned long long LocalStore::addValidPath(const ValidPathInfo & info, bool checkOutputs)
{
SQLiteStmtUse use(stmtRegisterValidPath);
stmtRegisterValidPath.bind(info.path);
@ -540,7 +540,7 @@ unsigned long long LocalStore::addValidPath(const ValidPathInfo & info)
derivations). Note that if this throws an error, then the
DB transaction is rolled back, so the path validity
registration above is undone. */
checkDerivationOutputs(info.path, drv);
if (checkOutputs) checkDerivationOutputs(info.path, drv);
foreach (DerivationOutputs::iterator, i, drv.outputs) {
SQLiteStmtUse use(stmtAddDerivationOutput);
@ -1521,7 +1521,7 @@ void LocalStore::upgradeStore6()
SQLiteTxn txn(db);
foreach (PathSet::iterator, i, validPaths) {
addValidPath(queryPathInfoOld(*i));
addValidPath(queryPathInfoOld(*i), false);
std::cerr << ".";
}

2
src/libstore/local-store.hh
View file

@ -226,7 +226,7 @@ private:
unsigned long long queryValidPathId(const Path & path);
unsigned long long addValidPath(const ValidPathInfo & info);
unsigned long long addValidPath(const ValidPathInfo & info, bool checkOutputs = true);
void addReference(unsigned long long referrer, unsigned long long reference);