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gui: verify agent directory before starting statewait/chat streams 

Add a run9p stat check before opening blocking reads on
statewait and chat. If the agent directory doesn't exist,
skip starting (prevents tight restart loops when a session
is killed while streams are active). Only one statewait
reader runs at a time.
This commit is contained in:
Levi Neely 2026-08-01 20:56:40 +02:00
parent 608127e4ac
commit dbbcc07934
1 changed files with 31 additions and 14 deletions
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45
gui/ollie9pclient.cpp
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@ -437,13 +437,19 @@ void Ollie9pClient::ensureRootDataLoaded()
void Ollie9pClient::startChatStream()
{
if (m_chatProc) return;
if (m_activeSessionId.isEmpty() || m_agentId.isEmpty()) return;
m_chatProc = new QProcess(this);
connect(m_chatProc, &QProcess::readyReadStandardOutput, this, &Ollie9pClient::onChatReadyRead);
connect(m_chatProc, QOverload<int, QProcess::ExitStatus>::of(&QProcess::finished),
this, &Ollie9pClient::onChatFinished);
m_chatProc->start(ninepBin(), {"-a", serverAddr(), "read", agentPath() + "/chat"});
if (m_chatProc) return;
if (m_activeSessionId.isEmpty() || m_agentId.isEmpty()) return;
// Verify the agent directory exists before opening a blocking read
QString ap = agentPath();
QByteArray verify = run9p({"stat", ap});
if (verify.isEmpty()) return; // directory gone
m_chatProc = new QProcess(this);
connect(m_chatProc, &QProcess::readyReadStandardOutput, this, &Ollie9pClient::onChatReadyRead);
connect(m_chatProc, QOverload<int, QProcess::ExitStatus>::of(&QProcess::finished),
this, &Ollie9pClient::onChatFinished);
m_chatProc->start(ninepBin(), {"-a", serverAddr(), "read", ap + "/chat"});
}
void Ollie9pClient::startStateStream()
@ -453,6 +459,16 @@ void Ollie9pClient::startStateStream()
// Check if session still exists before starting
if (m_activeSessionId.isEmpty() || m_agentId.isEmpty()) return;
// Verify the agent directory still exists before opening a blocking read
QString ap = agentPath();
QByteArray verify = run9p({"stat", ap});
if (verify.isEmpty()) {
// Directory gone — don't start spamming
m_agentId.clear();
emit activeAgentIdChanged();
return;
}
// Verify the current agent directory still exists
QStringList agents = getAgents(m_activeSessionId);
if (agents.isEmpty()) {
@ -465,11 +481,11 @@ void Ollie9pClient::startStateStream()
emit activeAgentIdChanged();
}
m_stateProc = new QProcess(this);
connect(m_stateProc, &QProcess::readyReadStandardOutput, this, &Ollie9pClient::onStateReadyRead);
connect(m_stateProc, QOverload<int, QProcess::ExitStatus>::of(&QProcess::finished),
this, &Ollie9pClient::onStateFinished);
m_stateProc->start(ninepBin(), {"-a", serverAddr(), "read", agentPath() + "/statewait"});
m_stateProc = new QProcess(this);
connect(m_stateProc, &QProcess::readyReadStandardOutput, this, &Ollie9pClient::onStateReadyRead);
connect(m_stateProc, QOverload<int, QProcess::ExitStatus>::of(&QProcess::finished),
this, &Ollie9pClient::onStateFinished);
m_stateProc->start(ninepBin(), {"-a", serverAddr(), "read", ap + "/statewait"});
}
void Ollie9pClient::stopStreams()
@ -529,8 +545,9 @@ void Ollie9pClient::onStateFinished(int, QProcess::ExitStatus)
{
m_stateProc->deleteLater();
m_stateProc = nullptr;
// Do NOT restart — statewait is only started when the user
// explicitly selects an agent via setActiveSessionId or switchAgent.
// Restart to pick up the next state change — statewait is a blocking
// read that returns once and closes the FD.
startStateStream();
}
void Ollie9pClient::startEventStream()