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Maemo: Introduce explicit states to SshRunner.

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Reviewed-by: kh1
This commit is contained in:
Christian Kandeler
2010-10-04 15:52:13 +02:00
parent 71c6104cc3
commit b2030a13d4
4 changed files with 130 additions and 73 deletions
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165
src/plugins/qt4projectmanager/qt-maemo/maemosshrunner.cpp
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@@ -46,6 +46,10 @@
#include <QtCore/QFileInfo>
#include <limits>
#define ASSERT_STATE(state) assertState(state, Q_FUNC_INFO)
using namespace Core;
namespace Qt4ProjectManager {
@@ -55,8 +59,8 @@ MaemoSshRunner::MaemoSshRunner(QObject *parent,
MaemoRunConfiguration *runConfig, bool debugging)
: QObject(parent), m_runConfig(runConfig),
m_mounter(new MaemoRemoteMounter(this)),
m_devConfig(runConfig->deviceConfig()), m_shuttingDown(false),
m_debugging(debugging)
m_devConfig(runConfig->deviceConfig()),
m_debugging(debugging), m_state(Inactive)
{
m_procsToKill
<< QFileInfo(m_runConfig->localExecutableFilePath()).fileName()
@@ -77,27 +81,21 @@ MaemoSshRunner::~MaemoSshRunner() {}
void MaemoSshRunner::start()
{
// Should not happen.
if (m_shuttingDown) {
emit error(tr("Cannot start deployment, as the clean-up from the last time has not finished yet."));
return;
}
ASSERT_STATE(QList<State>() << Inactive << StopRequested);
m_stop = false;
setState(Connecting);
m_exitStatus = -1;
if (m_connection)
disconnect(m_connection.data(), 0, this, 0);
bool reUse = isConnectionUsable();
if (!reUse)
m_connection = m_runConfig->deployStep()->sshConnection();
reUse = isConnectionUsable();
m_connection = m_runConfig->deployStep()->sshConnection();
const bool reUse = isConnectionUsable();
if (!reUse)
m_connection = SshConnection::create();
connect(m_connection.data(), SIGNAL(connected()), this,
SLOT(handleConnected()));
connect(m_connection.data(), SIGNAL(error(SshError)), this,
SLOT(handleConnectionFailure()));
if (reUse) {
if (reUse) {
handleConnected();
} else {
emit reportProgress(tr("Connecting to device..."));
@@ -107,41 +105,44 @@ void MaemoSshRunner::start()
void MaemoSshRunner::stop()
{
if (m_shuttingDown)
if (m_state == PostRunCleaning || m_state == StopRequested
|| m_state == Inactive)
return;
m_stop = true;
m_mounter->stop();
if (m_cleaner)
disconnect(m_cleaner.data(), 0, this, 0);
cleanup(false);
setState(StopRequested);
cleanup();
}
void MaemoSshRunner::handleConnected()
{
if (m_stop)
return;
cleanup(true);
ASSERT_STATE(QList<State>() << Connecting << StopRequested);
if (m_state == StopRequested) {
setState(Inactive);
} else {
setState(PreRunCleaning);
cleanup();
}
}
void MaemoSshRunner::handleConnectionFailure()
{
emit error(tr("Could not connect to host: %1")
.arg(m_connection->errorString()));
if (m_state != Inactive)
qWarning("Unexpected state %d in %s.", m_state, Q_FUNC_INFO);
const QString errorTemplate = m_state == Connecting
? tr("Could not connect to host: %1") : tr("Connection failed: %1");
emitError(errorTemplate.arg(m_connection->errorString()));
}
void MaemoSshRunner::cleanup(bool initialCleanup)
void MaemoSshRunner::cleanup()
{
if (!isConnectionUsable())
return;
ASSERT_STATE(QList<State>() << PreRunCleaning << PostRunCleaning
<< StopRequested);
emit reportProgress(tr("Killing remote process(es)..."));
m_shuttingDown = !initialCleanup;
// pkill behaves differently on Fremantle and Harmattan.
const char *const killTemplate = "pkill -%2 '^%1$'; pkill -%2 '/%1$';";
QString niceKill;
QString brutalKill;
foreach (const QString &proc, m_procsToKill) {
@@ -163,31 +164,30 @@ void MaemoSshRunner::handleCleanupFinished(int exitStatus)
|| exitStatus == SshRemoteProcess::KilledBySignal
|| exitStatus == SshRemoteProcess::ExitedNormally);
if (m_shuttingDown) {
m_unmountState = ShutdownUnmount;
ASSERT_STATE(QList<State>() << PreRunCleaning << PostRunCleaning
<< StopRequested);
if (m_state == StopRequested || m_state == PostRunCleaning) {
m_mounter->unmount();
return;
}
if (m_stop)
return;
if (exitStatus != SshRemoteProcess::ExitedNormally) {
emit error(tr("Initial cleanup failed: %1")
emitError(tr("Initial cleanup failed: %1")
.arg(m_cleaner->errorString()));
} else {
m_mounter->setConnection(m_connection);
m_unmountState = InitialUnmount;
m_mounter->unmount();
}
}
void MaemoSshRunner::handleUnmounted()
{
switch (m_unmountState) {
case InitialUnmount: {
if (m_stop)
return;
ASSERT_STATE(QList<State>() << PreRunCleaning << PreMountUnmounting
<< PostRunCleaning << StopRequested);
switch (m_state) {
case PreRunCleaning: {
m_mounter->resetMountSpecifications();
MaemoPortList portList = m_devConfig.freePorts();
if (m_debugging) { // gdbserver and QML inspector need one port each.
@@ -210,49 +210,55 @@ void MaemoSshRunner::handleUnmounted()
MaemoGlobal::remoteProjectSourcesMountPoint())))
return;
}
m_unmountState = PreMountUnmount;
setState(PreMountUnmounting);
m_mounter->unmount();
break;
}
case PreMountUnmount:
if (m_stop)
return;
case PreMountUnmounting:
setState(Mounting);
m_mounter->mount();
break;
case ShutdownUnmount:
Q_ASSERT(m_shuttingDown);
case PostRunCleaning:
case StopRequested:
m_mounter->resetMountSpecifications();
m_shuttingDown = false;
if (m_exitStatus == SshRemoteProcess::ExitedNormally) {
if (m_state == StopRequested) {
emit remoteProcessFinished(InvalidExitCode);
} else if (m_exitStatus == SshRemoteProcess::ExitedNormally) {
emit remoteProcessFinished(m_runner->exitCode());
} else if (m_exitStatus == -1) {
emit remoteProcessFinished(-1);
} else {
emit error(tr("Error running remote process: %1")
.arg(m_runner->errorString()));
}
m_exitStatus = -1;
setState(Inactive);
break;
default: ;
}
}
void MaemoSshRunner::handleMounted()
{
if (!m_stop)
ASSERT_STATE(QList<State>() << Mounting << StopRequested);
if (m_state == Mounting) {
setState(ReadyForExecution);
emit readyForExecution();
}
}
void MaemoSshRunner::handleMounterError(const QString &errorMsg)
{
if (m_shuttingDown)
m_shuttingDown = false;
emit error(errorMsg);
ASSERT_STATE(QList<State>() << PreRunCleaning << PostRunCleaning
<< PreMountUnmounting << Mounting << StopRequested);
emitError(errorMsg);
}
void MaemoSshRunner::startExecution(const QByteArray &remoteCall)
{
ASSERT_STATE(ReadyForExecution);
if (m_runConfig->remoteExecutableFilePath().isEmpty()) {
emit error(tr("Cannot run: No remote executable set."));
emitError(tr("Cannot run: No remote executable set."));
return;
}
@@ -265,6 +271,7 @@ void MaemoSshRunner::startExecution(const QByteArray &remoteCall)
SIGNAL(remoteOutput(QByteArray)));
connect(m_runner.data(), SIGNAL(errorOutputAvailable(QByteArray)), this,
SIGNAL(remoteErrorOutput(QByteArray)));
setState(ProcessStarting);
m_runner->start();
}
@@ -273,15 +280,19 @@ void MaemoSshRunner::handleRemoteProcessFinished(int exitStatus)
Q_ASSERT(exitStatus == SshRemoteProcess::FailedToStart
|| exitStatus == SshRemoteProcess::KilledBySignal
|| exitStatus == SshRemoteProcess::ExitedNormally);
ASSERT_STATE(QList<State>() << ProcessStarting << StopRequested);
m_exitStatus = exitStatus;
cleanup(false);
if (m_state != StopRequested) {
setState(PostRunCleaning);
cleanup();
}
}
bool MaemoSshRunner::addMountSpecification(const MaemoMountSpecification &mountSpec)
{
if (!m_mounter->addMountSpecification(mountSpec, false)) {
emit error(tr("The device does not have enough free ports "
emitError(tr("The device does not have enough free ports "
"for this run configuration."));
return false;
}
@@ -294,6 +305,42 @@ bool MaemoSshRunner::isConnectionUsable() const
&& m_connection->connectionParameters() == m_devConfig.server;
}
void MaemoSshRunner::assertState(State expectedState, const char *func)
{
assertState(QList<State>() << expectedState, func);
}
void MaemoSshRunner::assertState(const QList<State> &expectedStates,
const char *func)
{
if (!expectedStates.contains(m_state))
qWarning("Unexpected state %d at %s.", m_state, func);
}
void MaemoSshRunner::setState(State newState)
{
if (newState == Inactive) {
m_mounter->setConnection(SshConnection::Ptr());
if (m_connection) {
disconnect(m_connection.data(), 0, this, 0);
m_connection = SshConnection::Ptr();
}
if (m_cleaner)
disconnect(m_cleaner.data(), 0, this, 0);
}
m_state = newState;
}
void MaemoSshRunner::emitError(const QString &errorMsg)
{
emit error(errorMsg);
setState(Inactive);
}
const qint64 MaemoSshRunner::InvalidExitCode
= std::numeric_limits<qint64>::min();
} // namespace Internal
} // namespace Qt4ProjectManager