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// Copyright Epic Games, Inc. All Rights Reserved.
#include "status_cmd.h"
#include <zencore/compactbinary.h>
#include <zencore/compactbinaryutil.h>
#include <zencore/filesystem.h>
#include <zencore/fmtutils.h>
#include <zencore/logging.h>
#include <zencore/string.h>
#include <zencore/uid.h>
#include <zenutil/zenserverprocess.h>
namespace zen {
StatusCommand::StatusCommand()
{
m_Options.add_option("", "p", "port", "Host port", cxxopts::value(m_Port)->default_value("0"), "<hostport>");
m_Options.add_option("", "", "data-dir", "Path to data directory to inspect for running server", cxxopts::value(m_DataDir), "<file>");
}
StatusCommand::~StatusCommand() = default;
void
StatusCommand::Run(const ZenCliOptions& GlobalOptions, int argc, char** argv)
{
ZEN_UNUSED(GlobalOptions);
if (!ParseOptions(argc, argv))
{
return;
}
uint16_t EffectivePort = 0;
if (!m_DataDir.empty())
{
if (!IsFile(m_DataDir / ".lock"))
{
throw std::runtime_error(fmt::format("Lock file does not exist in directory '{}'", m_DataDir));
}
CbValidateError ValidateResult = CbValidateError::None;
if (CbObject LockFileObject =
ValidateAndReadCompactBinaryObject(IoBufferBuilder::MakeFromFile(m_DataDir / ".lock"), ValidateResult);
ValidateResult == CbValidateError::None)
{
LockFileInfo Info = ReadLockFilePayload(LockFileObject);
std::string Reason;
if (!ValidateLockFileInfo(Info, Reason))
{
throw std::runtime_error(fmt::format("Lock file in directory '{}' is not valid. Reason: '{}'", m_DataDir, Reason));
}
EffectivePort = Info.EffectiveListenPort;
}
else
{
throw std::runtime_error(
fmt::format("Lock file in directory '{}' is malformed. Reason: '{}'", m_DataDir, ToString(ValidateResult)));
}
}
ZenServerState State;
if (!State.InitializeReadOnly())
{
ZEN_CONSOLE("No Zen state found");
return;
}
ZEN_CONSOLE("{:>5} {:>6} {:>24} {}", "port", "pid", "session", "socket");
State.Snapshot([&](const ZenServerState::ZenServerEntry& Entry) {
bool MatchesAnyPort = (m_Port == 0) && (EffectivePort == 0);
bool MatchesEffectivePort = (EffectivePort != 0) && (Entry.EffectiveListenPort.load() == EffectivePort);
bool MatchesDesiredPort = (m_Port != 0) && (Entry.DesiredListenPort.load() == m_Port);
if (MatchesAnyPort || MatchesEffectivePort || MatchesDesiredPort)
{
StringBuilder<25> SessionStringBuilder;
Entry.GetSessionId().ToString(SessionStringBuilder);
std::string SocketPath;
if (Entry.HasInstanceInfo())
{
ZenServerInstanceInfo Info;
if (Info.OpenReadOnly(Entry.GetSessionId()))
{
InstanceInfoData Data = Info.Read();
if (!Data.UnixSocketPath.empty())
{
SocketPath = PathToUtf8(Data.UnixSocketPath);
}
}
}
std::string PortStr = Entry.IsNoNetwork() ? std::string("-") : fmt::to_string(Entry.EffectiveListenPort.load());
ZEN_CONSOLE("{:>5} {:>6} {:>24} {}", PortStr, Entry.Pid.load(), SessionStringBuilder, SocketPath);
}
});
}
} // namespace zen
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