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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include <seastar/core/future.hh>
#include "osd/PeeringState.h"
#include "messages/MOSDPGQuery.h"
#include "messages/MOSDPGCreate2.h"
#include "common/Formatter.h"
#include "crimson/common/exception.h"
#include "crimson/osd/pg.h"
#include "crimson/osd/osd.h"
#include "crimson/osd/osd_operations/compound_peering_request.h"
namespace {
seastar::logger& logger() {
return crimson::get_logger(ceph_subsys_osd);
}
}
namespace {
using namespace crimson::osd;
struct compound_state {
seastar::promise<BufferedRecoveryMessages> promise;
// assuming crimson-osd won't need to be compatible with pre-octopus
// releases
BufferedRecoveryMessages ctx{ceph_release_t::octopus};
compound_state() = default;
~compound_state() {
promise.set_value(std::move(ctx));
}
};
using compound_state_ref = seastar::lw_shared_ptr<compound_state>;
class PeeringSubEvent : public RemotePeeringEvent {
compound_state_ref state;
public:
template <typename... Args>
PeeringSubEvent(compound_state_ref state, Args &&... args) :
RemotePeeringEvent(std::forward<Args>(args)...), state(state) {}
seastar::future<> complete_rctx(Ref<crimson::osd::PG> pg) final {
logger().debug("{}: submitting ctx transaction", *this);
state->ctx.accept_buffered_messages(ctx);
state = {};
if (!pg) {
ceph_assert(ctx.transaction.empty());
return seastar::now();
} else {
return osd.get_shard_services().dispatch_context_transaction(
pg->get_collection_ref(), ctx);
}
}
};
std::vector<OperationRef> handle_pg_create(
OSD &osd,
crimson::net::ConnectionRef conn,
compound_state_ref state,
Ref<MOSDPGCreate2> m)
{
std::vector<OperationRef> ret;
for (auto& [pgid, when] : m->pgs) {
const auto &[created, created_stamp] = when;
auto q = m->pg_extra.find(pgid);
ceph_assert(q != m->pg_extra.end());
auto& [history, pi] = q->second;
logger().debug(
"{}: {} e{} @{} "
"history {} pi {}",
__func__, pgid, created, created_stamp,
history, pi);
if (!pi.empty() &&
m->epoch < pi.get_bounds().second) {
logger().error(
"got pg_create on {} epoch {} "
"unmatched past_intervals {} (history {})",
pgid, m->epoch,
pi, history);
} else {
auto op = osd.get_shard_services().start_operation<PeeringSubEvent>(
state,
osd,
conn,
osd.get_shard_services(),
pg_shard_t(),
pgid,
m->epoch,
m->epoch,
NullEvt(),
true,
new PGCreateInfo(pgid, m->epoch, history, pi, true)).first;
ret.push_back(op);
}
}
return ret;
}
struct SubOpBlocker : BlockerT<SubOpBlocker> {
static constexpr const char * type_name = "CompoundOpBlocker";
std::vector<OperationRef> subops;
SubOpBlocker(std::vector<OperationRef> &&subops) : subops(subops) {}
virtual void dump_detail(Formatter *f) const {
f->open_array_section("dependent_operations");
{
for (auto &i : subops) {
i->dump_brief(f);
}
}
f->close_section();
}
};
} // namespace
namespace crimson::osd {
CompoundPeeringRequest::CompoundPeeringRequest(
OSD &osd, crimson::net::ConnectionRef conn, Ref<Message> m)
: osd(osd),
conn(conn),
m(m)
{}
void CompoundPeeringRequest::print(std::ostream &lhs) const
{
lhs << *m;
}
void CompoundPeeringRequest::dump_detail(Formatter *f) const
{
f->dump_stream("message") << *m;
}
seastar::future<> CompoundPeeringRequest::start()
{
logger().info("{}: starting", *this);
auto state = seastar::make_lw_shared<compound_state>();
auto blocker = std::make_unique<SubOpBlocker>(
[&] {
assert((m->get_type() == MSG_OSD_PG_CREATE2));
return handle_pg_create(
osd,
conn,
state,
boost::static_pointer_cast<MOSDPGCreate2>(m));
}());
IRef ref = this;
logger().info("{}: about to fork future", *this);
return crimson::common::handle_system_shutdown(
[this, ref, blocker=std::move(blocker), state]() mutable {
return with_blocking_future(
blocker->make_blocking_future(state->promise.get_future())
).then([this, blocker=std::move(blocker)](auto &&ctx) {
logger().info("{}: sub events complete", *this);
return osd.get_shard_services().dispatch_context_messages(std::move(ctx));
}).then([this, ref=std::move(ref)] {
logger().info("{}: complete", *this);
});
});
}
} // namespace crimson::osd
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