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SubstitutionGoal -> PathSubstitutionGoal

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To prepare for the upcoming DrvOutputSubstitutionGoal
This commit is contained in:
regnat 2020-11-09 13:47:06 +01:00
parent e64cf8e0a3
commit 5d1c05b075
7 changed files with 43 additions and 40 deletions
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8
src/libstore/build/derivation-goal.cc
View file

@ -170,7 +170,7 @@ void DerivationGoal::getDerivation()
return;
}
addWaitee(upcast_goal(worker.makeSubstitutionGoal(drvPath)));
addWaitee(upcast_goal(worker.makePathSubstitutionGoal(drvPath)));
state = &DerivationGoal::loadDerivation;
}
@ -253,7 +253,7 @@ void DerivationGoal::haveDerivation()
/* Nothing to wait for; tail call */
return DerivationGoal::gaveUpOnSubstitution();
}
addWaitee(upcast_goal(worker.makeSubstitutionGoal(
addWaitee(upcast_goal(worker.makePathSubstitutionGoal(
status.known->path,
buildMode == bmRepair ? Repair : NoRepair,
getDerivationCA(*drv))));
@ -337,7 +337,7 @@ void DerivationGoal::gaveUpOnSubstitution()
if (!settings.useSubstitutes)
throw Error("dependency '%s' of '%s' does not exist, and substitution is disabled",
worker.store.printStorePath(i), worker.store.printStorePath(drvPath));
addWaitee(upcast_goal(worker.makeSubstitutionGoal(i)));
addWaitee(upcast_goal(worker.makePathSubstitutionGoal(i)));
}
if (waitees.empty()) /* to prevent hang (no wake-up event) */
@ -388,7 +388,7 @@ void DerivationGoal::repairClosure()
worker.store.printStorePath(i), worker.store.printStorePath(drvPath));
auto drvPath2 = outputsToDrv.find(i);
if (drvPath2 == outputsToDrv.end())
addWaitee(upcast_goal(worker.makeSubstitutionGoal(i, Repair)));
addWaitee(upcast_goal(worker.makePathSubstitutionGoal(i, Repair)));
else
addWaitee(worker.makeDerivationGoal(drvPath2->second, StringSet(), bmRepair));
}

8
src/libstore/build/entry-points.cc
View file

@ -15,7 +15,7 @@ void Store::buildPaths(const std::vector<StorePathWithOutputs> & drvPaths, Build
if (path.path.isDerivation())
goals.insert(worker.makeDerivationGoal(path.path, path.outputs, buildMode));
else
goals.insert(worker.makeSubstitutionGoal(path.path, buildMode == bmRepair ? Repair : NoRepair));
goals.insert(worker.makePathSubstitutionGoal(path.path, buildMode == bmRepair ? Repair : NoRepair));
}
worker.run(goals);
@ -31,7 +31,7 @@ void Store::buildPaths(const std::vector<StorePathWithOutputs> & drvPaths, Build
}
if (i->exitCode != Goal::ecSuccess) {
if (auto i2 = dynamic_cast<DerivationGoal *>(i.get())) failed.insert(i2->drvPath);
else if (auto i2 = dynamic_cast<SubstitutionGoal *>(i.get())) failed.insert(i2->storePath);
else if (auto i2 = dynamic_cast<PathSubstitutionGoal *>(i.get())) failed.insert(i2->storePath);
}
}
@ -90,7 +90,7 @@ void Store::ensurePath(const StorePath & path)
if (isValidPath(path)) return;
Worker worker(*this);
GoalPtr goal = worker.makeSubstitutionGoal(path);
GoalPtr goal = worker.makePathSubstitutionGoal(path);
Goals goals = {goal};
worker.run(goals);
@ -108,7 +108,7 @@ void Store::ensurePath(const StorePath & path)
void LocalStore::repairPath(const StorePath & path)
{
Worker worker(*this);
GoalPtr goal = worker.makeSubstitutionGoal(path, Repair);
GoalPtr goal = worker.makePathSubstitutionGoal(path, Repair);
Goals goals = {goal};
worker.run(goals);

32
src/libstore/build/substitution-goal.cc
View file

@ -5,20 +5,20 @@
namespace nix {
SubstitutionGoal::SubstitutionGoal(const StorePath & storePath, Worker & worker, RepairFlag repair, std::optional<ContentAddress> ca)
PathSubstitutionGoal::PathSubstitutionGoal(const StorePath & storePath, Worker & worker, RepairFlag repair, std::optional<ContentAddress> ca)
: Goal(worker)
, storePath(storePath)
, repair(repair)
, ca(ca)
{
state = &SubstitutionGoal::init;
state = &PathSubstitutionGoal::init;
name = fmt("substitution of '%s'", worker.store.printStorePath(this->storePath));
trace("created");
maintainExpectedSubstitutions = std::make_unique<MaintainCount<uint64_t>>(worker.expectedSubstitutions);
}
SubstitutionGoal::~SubstitutionGoal()
PathSubstitutionGoal::~PathSubstitutionGoal()
{
try {
if (thr.joinable()) {
@ -32,13 +32,13 @@ SubstitutionGoal::~SubstitutionGoal()
}
void SubstitutionGoal::work()
void PathSubstitutionGoal::work()
{
(this->*state)();
}
void SubstitutionGoal::init()
void PathSubstitutionGoal::init()
{
trace("init");
@ -59,7 +59,7 @@ void SubstitutionGoal::init()
}
void SubstitutionGoal::tryNext()
void PathSubstitutionGoal::tryNext()
{
trace("trying next substituter");
@ -154,16 +154,16 @@ void SubstitutionGoal::tryNext()
paths referenced by this one. */
for (auto & i : info->references)
if (i != storePath) /* ignore self-references */
addWaitee(worker.makeSubstitutionGoal(i));
addWaitee(worker.makePathSubstitutionGoal(i));
if (waitees.empty()) /* to prevent hang (no wake-up event) */
referencesValid();
else
state = &SubstitutionGoal::referencesValid;
state = &PathSubstitutionGoal::referencesValid;
}
void SubstitutionGoal::referencesValid()
void PathSubstitutionGoal::referencesValid()
{
trace("all references realised");
@ -177,12 +177,12 @@ void SubstitutionGoal::referencesValid()
if (i != storePath) /* ignore self-references */
assert(worker.store.isValidPath(i));
state = &SubstitutionGoal::tryToRun;
state = &PathSubstitutionGoal::tryToRun;
worker.wakeUp(shared_from_this());
}
void SubstitutionGoal::tryToRun()
void PathSubstitutionGoal::tryToRun()
{
trace("trying to run");
@ -221,11 +221,11 @@ void SubstitutionGoal::tryToRun()
worker.childStarted(shared_from_this(), {outPipe.readSide.get()}, true, false);
state = &SubstitutionGoal::finished;
state = &PathSubstitutionGoal::finished;
}
void SubstitutionGoal::finished()
void PathSubstitutionGoal::finished()
{
trace("substitute finished");
@ -249,7 +249,7 @@ void SubstitutionGoal::finished()
}
/* Try the next substitute. */
state = &SubstitutionGoal::tryNext;
state = &PathSubstitutionGoal::tryNext;
worker.wakeUp(shared_from_this());
return;
}
@ -278,12 +278,12 @@ void SubstitutionGoal::finished()
}
void SubstitutionGoal::handleChildOutput(int fd, const string & data)
void PathSubstitutionGoal::handleChildOutput(int fd, const string & data)
{
}
void SubstitutionGoal::handleEOF(int fd)
void PathSubstitutionGoal::handleEOF(int fd)
{
if (fd == outPipe.readSide.get()) worker.wakeUp(shared_from_this());
}

9
src/libstore/build/substitution-goal.hh
View file

@ -8,7 +8,7 @@ namespace nix {
class Worker;
struct SubstitutionGoal : public Goal
struct PathSubstitutionGoal : public Goal
{
/* The store path that should be realised through a substitute. */
StorePath storePath;
@ -47,14 +47,15 @@ struct SubstitutionGoal : public Goal
std::unique_ptr<MaintainCount<uint64_t>> maintainExpectedSubstitutions,
maintainRunningSubstitutions, maintainExpectedNar, maintainExpectedDownload;
typedef void (SubstitutionGoal::*GoalState)();
typedef void (PathSubstitutionGoal::*GoalState)();
GoalState state;
/* Content address for recomputing store path */
std::optional<ContentAddress> ca;
SubstitutionGoal(const StorePath & storePath, Worker & worker, RepairFlag repair = NoRepair, std::optional<ContentAddress> ca = std::nullopt);
~SubstitutionGoal();
public:
PathSubstitutionGoal(const StorePath & storePath, Worker & worker, RepairFlag repair = NoRepair, std::optional<ContentAddress> ca = std::nullopt);
~PathSubstitutionGoal();
void timedOut(Error && ex) override { abort(); };

12
src/libstore/build/worker.cc
View file

@ -78,12 +78,12 @@ std::shared_ptr<DerivationGoal> Worker::makeBasicDerivationGoal(const StorePath
}
std::shared_ptr<SubstitutionGoal> Worker::makeSubstitutionGoal(const StorePath & path, RepairFlag repair, std::optional<ContentAddress> ca)
std::shared_ptr<PathSubstitutionGoal> Worker::makePathSubstitutionGoal(const StorePath & path, RepairFlag repair, std::optional<ContentAddress> ca)
{
std::weak_ptr<SubstitutionGoal> & goal_weak = substitutionGoals[path];
std::weak_ptr<PathSubstitutionGoal> & goal_weak = substitutionGoals[path];
auto goal = goal_weak.lock(); // FIXME
if (!goal) {
goal = std::make_shared<SubstitutionGoal>(path, *this, repair, ca);
goal = std::make_shared<PathSubstitutionGoal>(path, *this, repair, ca);
goal_weak = goal;
wakeUp(goal);
}
@ -109,7 +109,7 @@ void Worker::removeGoal(GoalPtr goal)
{
if (auto drvGoal = std::dynamic_pointer_cast<DerivationGoal>(goal))
nix::removeGoal(drvGoal, derivationGoals);
else if (auto subGoal = std::dynamic_pointer_cast<SubstitutionGoal>(goal))
else if (auto subGoal = std::dynamic_pointer_cast<PathSubstitutionGoal>(goal))
nix::removeGoal(subGoal, substitutionGoals);
else
assert(false);
@ -217,7 +217,7 @@ void Worker::run(const Goals & _topGoals)
topGoals.insert(i);
if (auto goal = dynamic_cast<DerivationGoal *>(i.get())) {
topPaths.push_back({goal->drvPath, goal->wantedOutputs});
} else if (auto goal = dynamic_cast<SubstitutionGoal *>(i.get())) {
} else if (auto goal = dynamic_cast<PathSubstitutionGoal *>(i.get())) {
topPaths.push_back({goal->storePath});
}
}
@ -471,7 +471,7 @@ void Worker::markContentsGood(const StorePath & path)
}
GoalPtr upcast_goal(std::shared_ptr<SubstitutionGoal> subGoal) {
GoalPtr upcast_goal(std::shared_ptr<PathSubstitutionGoal> subGoal) {
return subGoal;
}

12
src/libstore/build/worker.hh
View file

@ -12,18 +12,18 @@ namespace nix {
/* Forward definition. */
struct DerivationGoal;
struct SubstitutionGoal;
struct PathSubstitutionGoal;
/* Workaround for not being able to declare a something like
class SubstitutionGoal : public Goal;
class PathSubstitutionGoal : public Goal;
even when Goal is a complete type.
This is still a static cast. The purpose of exporting it is to define it in
a place where `SubstitutionGoal` is concrete, and use it in a place where it
a place where `PathSubstitutionGoal` is concrete, and use it in a place where it
is opaque. */
GoalPtr upcast_goal(std::shared_ptr<SubstitutionGoal> subGoal);
GoalPtr upcast_goal(std::shared_ptr<PathSubstitutionGoal> subGoal);
typedef std::chrono::time_point<std::chrono::steady_clock> steady_time_point;
@ -72,7 +72,7 @@ private:
/* Maps used to prevent multiple instantiations of a goal for the
same derivation / path. */
std::map<StorePath, std::weak_ptr<DerivationGoal>> derivationGoals;
std::map<StorePath, std::weak_ptr<SubstitutionGoal>> substitutionGoals;
std::map<StorePath, std::weak_ptr<PathSubstitutionGoal>> substitutionGoals;
/* Goals waiting for busy paths to be unlocked. */
WeakGoals waitingForAnyGoal;
@ -146,7 +146,7 @@ public:
const StringSet & wantedOutputs, BuildMode buildMode = bmNormal);
/* substitution goal */
std::shared_ptr<SubstitutionGoal> makeSubstitutionGoal(const StorePath & storePath, RepairFlag repair = NoRepair, std::optional<ContentAddress> ca = std::nullopt);
std::shared_ptr<PathSubstitutionGoal> makePathSubstitutionGoal(const StorePath & storePath, RepairFlag repair = NoRepair, std::optional<ContentAddress> ca = std::nullopt);
/* Remove a dead goal. */
void removeGoal(GoalPtr goal);

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

@ -281,7 +281,9 @@ private:
void createUser(const std::string & userName, uid_t userId) override;
friend struct LocalDerivationGoal;
friend struct PathSubstitutionGoal;
friend struct SubstitutionGoal;
friend struct DerivationGoal;
};