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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "transport_debugger.h"
#include <vespa/vespalib/util/require.h>
#include <cassert>
namespace fnet {
void
TransportDebugger::Meet::mingle()
{
bool call_again = true;
for (size_t i = 0; i < size(); ++i) {
if (!in(i)) {
call_again = false;
}
}
for (size_t i = 0; i < size(); ++i) {
out(i) = call_again;
}
}
TransportDebugger::TransportDebugger()
: _time(),
_meet()
{
}
TransportDebugger::~TransportDebugger()
{
assert(!_meet && "error: still attached");
}
void
TransportDebugger::attach(std::initializer_list<std::reference_wrapper<FNET_Transport> > list)
{
size_t N = list.size() + 1;
REQUIRE(!_meet);
REQUIRE(N > 1);
_meet = std::make_shared<Meet>(N);
for (auto &item: list) {
item.get().attach_capture_hook([meet = _meet]()
{
REQUIRE(meet->rendezvous(true));
// capture point: between meetings
return meet->rendezvous(true);
});
}
REQUIRE(_meet->rendezvous(true)); // capture transport threads
}
void
TransportDebugger::step(vespalib::duration time_passed)
{
REQUIRE(_meet);
_time += time_passed; // pretend time passes between each event loop iteration
REQUIRE(_meet->rendezvous(true)); // release transport threads
REQUIRE(_meet->rendezvous(true)); // capture transport threads
}
void
TransportDebugger::detach()
{
REQUIRE(_meet);
REQUIRE(!_meet->rendezvous(false)); // release transport threads (final time)
_meet.reset();
}
}
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