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Docker: Fix process state handling

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Fixes the following errors that would trigger warnings due to incorrect
QtcProcess/ProcessImpl state synchronization

* Don't emit readyRead when state != Running
* Set result.m_error to FailedToStart if remote pid was not received
* Send stderr data once the pid was received
* Don't call deleteLater() on nullptr

Change-Id: I4b498a860ad27bef1a5b3e26417576431b54e84c
Reviewed-by: hjk <hjk@qt.io>
This commit is contained in:
Marcus Tillmanns
2023-03-28 07:52:57 +02:00
parent d8e87413a3
commit c7b6c66cab
1 changed files with 23 additions and 5 deletions
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28
src/plugins/docker/dockerdevice.cpp
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@@ -255,8 +255,10 @@ DockerProcessImpl::DockerProcessImpl(IDevice::ConstPtr device, DockerDevicePriva
if (ok)
emit started(m_remotePID);
if (rest.size() > 0)
emit readyRead(rest, {});
// In case we already received some error output, send it now.
const QByteArray stdErr = m_process.readAllRawStandardError();
if (rest.size() > 0 || stdErr.size() > 0)
emit readyRead(rest, stdErr);
m_hasReceivedFirstOutput = true;
return;
@@ -266,13 +268,28 @@ DockerProcessImpl::DockerProcessImpl(IDevice::ConstPtr device, DockerDevicePriva
});
connect(&m_process, &QtcProcess::readyReadStandardError, this, [this] {
emit readyRead({}, m_process.readAllRawStandardError());
if (m_remotePID)
emit readyRead({}, m_process.readAllRawStandardError());
});
connect(&m_process, &QtcProcess::done, this, [this] {
qCDebug(dockerDeviceLog) << "Process exited:" << m_process.commandLine()
<< "with code:" << m_process.resultData().m_exitCode;
emit done(m_process.resultData());
Utils::ProcessResultData resultData = m_process.resultData();
if (m_remotePID == 0) {
resultData.m_error = QProcess::FailedToStart;
qCWarning(dockerDeviceLog) << "Process failed to start:" << m_process.commandLine();
QByteArray stdOut = m_process.readAllRawStandardOutput();
QByteArray stdErr = m_process.readAllRawStandardError();
if (!stdOut.isEmpty())
qCWarning(dockerDeviceLog) << "stdout:" << stdOut;
if (!stdErr.isEmpty())
qCWarning(dockerDeviceLog) << "stderr:" << stdErr;
}
emit done(resultData);
});
}
@@ -699,7 +716,8 @@ bool DockerDevicePrivate::startContainer()
m_shell = std::make_unique<ContainerShell>(m_settings, m_container, q->rootPath());
connect(m_shell.get(), &DeviceShell::done, this, [this](const ProcessResultData &resultData) {
m_shell.release()->deleteLater();
if (m_shell)
m_shell.release()->deleteLater();
if (resultData.m_error != QProcess::UnknownError
|| resultData.m_exitStatus == QProcess::NormalExit)
return;