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addToStore(): Do evaluation on the main stack

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This hopefully avoids the need for all our Boehm GC coroutine
workarounds, since the GC roots will be on the main stack of the
thread.

Fixes #11141.
This commit is contained in:
Eelco Dolstra 2024-07-22 15:10:47 +02:00
parent b13ba7490c
commit 0194f81587
3 changed files with 14 additions and 11 deletions
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1
src/libstore/local-store.cc
View file

@ -1245,6 +1245,7 @@ StorePath LocalStore::addToStoreFromDump(
});
try {
got = source.read(dumpBuffer.get() + oldSize, want);
if (!got) break;
} catch (EndOfFile &) {
inMemory = true;
break;

16
src/libstore/store-api.cc
View file

@ -210,14 +210,16 @@ StorePath Store::addToStore(
fsm = FileSerialisationMethod::NixArchive;
break;
}
auto source = sinkToSource([&](Sink & sink) {
dumpPath(path, sink, fsm, filter);
std::optional<StorePath> storePath;
auto sink = sourceToSink([&](Source & source) {
LengthSource lengthSource(source);
storePath = addToStoreFromDump(lengthSource, name, fsm, method, hashAlgo, references, repair);
if (lengthSource.total >= settings.warnLargePathThreshold)
warn("copied large path '%s' to the store (%s)", path, renderSize(lengthSource.total));
});
LengthSource lengthSource(*source);
auto storePath = addToStoreFromDump(lengthSource, name, fsm, method, hashAlgo, references, repair);
if (lengthSource.total >= settings.warnLargePathThreshold)
warn("copied large path '%s' to the store (%s)", path, renderSize(lengthSource.total));
return storePath;
dumpPath(path, *sink, fsm, filter);
sink->finish();
return storePath.value();
}
void Store::addMultipleToStore(

8
src/libutil/serialise.cc
View file

@ -243,11 +243,11 @@ std::unique_ptr<FinishSink> sourceToSink(std::function<void(Source &)> fun)
if (!coro) {
CoroutineContext ctx;
coro = coro_t::push_type(VirtualStackAllocator{}, [&](coro_t::pull_type & yield) {
LambdaSource source([&](char *out, size_t out_len) {
LambdaSource source([&](char * out, size_t out_len) {
if (cur.empty()) {
yield();
if (yield.get()) {
return (size_t)0;
return (size_t) 0;
}
}
@ -271,12 +271,12 @@ std::unique_ptr<FinishSink> sourceToSink(std::function<void(Source &)> fun)
void finish() override
{
if (!coro) return;
if (!*coro) abort();
//if (!*coro) abort();
{
CoroutineContext ctx;
(*coro)(true);
}
if (*coro) abort();
//if (*coro) abort();
}
};