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#include "goal.hh"
#include "async-collect.hh"
#include "worker.hh"
#include <kj/time.h>
namespace nix {
void Goal::trace(std::string_view s)
{
debug("%1%: %2%", name, s);
}
kj::Promise<Result<Goal::WorkResult>> Goal::waitForAWhile()
try {
trace("wait for a while");
/* If we are polling goals that are waiting for a lock, then wake
up after a few seconds at most. */
co_await worker.aio.provider->getTimer().afterDelay(settings.pollInterval.get() * kj::SECONDS);
co_return StillAlive{};
} catch (...) {
co_return std::current_exception();
}
kj::Promise<Result<Goal::WorkResult>>
Goal::waitForGoals(kj::Array<std::pair<GoalPtr, kj::Promise<void>>> dependencies) noexcept
try {
auto left = dependencies.size();
for (auto & [dep, p] : dependencies) {
p = p.then([this, dep, &left] {
left--;
trace(fmt("waitee '%s' done; %d left", dep->name, left));
if (dep->exitCode != Goal::ecSuccess) ++nrFailed;
if (dep->exitCode == Goal::ecNoSubstituters) ++nrNoSubstituters;
if (dep->exitCode == Goal::ecIncompleteClosure) ++nrIncompleteClosure;
}).eagerlyEvaluate(nullptr);
}
auto collectDeps = asyncCollect(std::move(dependencies));
while (auto item = co_await collectDeps.next()) {
auto & dep = *item;
waiteeDone(dep);
if (dep->exitCode == ecFailed && !settings.keepGoing) {
co_return result::success(StillAlive{});
}
}
co_return result::success(StillAlive{});
} catch (...) {
co_return result::failure(std::current_exception());
}
}
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