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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: http://www.qt-project.org/
**
** GNU Lesser General Public License Usage
**
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**************************************************************************/
#include "localprocesslist.h"
#include <QLibrary>
#include <QProcess>
#include <QTimer>
#include <errno.h>
#include <string.h>
#ifdef Q_OS_UNIX
//#include <sys/types.h>
#include <signal.h>
#endif
#ifdef Q_OS_WIN
// Enable Win API of XP SP1 and later
#define _WIN32_WINNT 0x0502
#include <windows.h>
#include <utils/winutils.h>
#include <tlhelp32.h>
#include <psapi.h>
#endif // Q_OS_WIN
namespace ProjectExplorer {
namespace Internal {
const int PsFieldWidth = 50;
#ifdef Q_OS_WIN
// Resolve QueryFullProcessImageNameW out of kernel32.dll due
// to incomplete MinGW import libs and it not being present
// on Windows XP.
static BOOL queryFullProcessImageName(HANDLE h, DWORD flags, LPWSTR buffer, DWORD *size)
{
// Resolve required symbols from the kernel32.dll
typedef BOOL (WINAPI *QueryFullProcessImageNameWProtoType)
(HANDLE, DWORD, LPWSTR, PDWORD);
static QueryFullProcessImageNameWProtoType queryFullProcessImageNameW = 0;
if (!queryFullProcessImageNameW) {
QLibrary kernel32Lib(QLatin1String("kernel32.dll"), 0);
if (kernel32Lib.isLoaded() || kernel32Lib.load())
queryFullProcessImageNameW = (QueryFullProcessImageNameWProtoType)kernel32Lib.resolve("QueryFullProcessImageNameW");
}
if (!queryFullProcessImageNameW)
return FALSE;
// Read out process
return (*queryFullProcessImageNameW)(h, flags, buffer, size);
}
static QString imageName(DWORD processId)
{
QString rc;
HANDLE handle = OpenProcess(PROCESS_QUERY_INFORMATION , FALSE, processId);
if (handle == INVALID_HANDLE_VALUE)
return rc;
WCHAR buffer[MAX_PATH];
DWORD bufSize = MAX_PATH;
if (queryFullProcessImageName(handle, 0, buffer, &bufSize))
rc = QString::fromUtf16(reinterpret_cast<const ushort*>(buffer));
CloseHandle(handle);
return rc;
}
#endif //Q_OS_WIN
LocalProcessList::LocalProcessList(const IDevice::ConstPtr &device, QObject *parent)
: DeviceProcessList(device, parent),
m_psProcess(new QProcess(this))
{
#ifdef Q_OS_UNIX
connect(m_psProcess, SIGNAL(error(QProcess::ProcessError)), SLOT(handlePsError()));
connect(m_psProcess, SIGNAL(finished(int)), SLOT(handlePsFinished()));
#endif //Q_OS_UNIX
}
void LocalProcessList::doUpdate()
{
#ifdef Q_OS_UNIX
// We assume Desktop Unix systems to have a POSIX-compliant ps.
// We need the padding because the command field can contain spaces, so we cannot split on those.
m_psProcess->start(QString::fromLocal8Bit("ps -e -o pid=%1 -o comm=%1 -o args=%1")
.arg(QString(PsFieldWidth, QChar('x'))));
#endif
#ifdef Q_OS_WIN
QTimer::singleShot(0, this, SLOT(handleWindowsUpdate()));
#endif
}
void LocalProcessList::handlePsFinished()
{
QString errorString;
if (m_psProcess->exitStatus() == QProcess::CrashExit) {
errorString = tr("The ps process crashed.");
} else if (m_psProcess->exitCode() != 0) {
errorString = tr("The ps process failed with exit code %1.").arg(m_psProcess->exitCode());
} else {
const QString output = QString::fromLocal8Bit(m_psProcess->readAllStandardOutput());
QStringList lines = output.split(QLatin1Char('\n'), QString::SkipEmptyParts);
lines.removeFirst(); // Headers
QList<DeviceProcess> processes;
foreach (const QString &line, lines) {
if (line.count() < 2*PsFieldWidth) {
qDebug("%s: Ignoring malformed line", Q_FUNC_INFO);
continue;
}
DeviceProcess p;
p.pid = line.mid(0, PsFieldWidth).trimmed().toInt();
p.exe = line.mid(PsFieldWidth, PsFieldWidth).trimmed();
p.cmdLine = line.mid(2*PsFieldWidth).trimmed();
processes << p;
}
reportProcessListUpdated(processes);
return;
}
const QByteArray stderrData = m_psProcess->readAllStandardError();
if (!stderrData.isEmpty()) {
errorString += QLatin1Char('\n') + tr("The stderr output was: '%1'")
.arg(QString::fromLocal8Bit(stderrData));
}
reportError(errorString);
}
void LocalProcessList::handleWindowsUpdate()
{
QList<DeviceProcess> processes;
PROCESSENTRY32 pe;
pe.dwSize = sizeof(PROCESSENTRY32);
HANDLE snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
if (snapshot == INVALID_HANDLE_VALUE)
return;
for (bool hasNext = Process32First(snapshot, &pe); hasNext; hasNext = Process32Next(snapshot, &pe)) {
DeviceProcess p;
p.pid = pe.th32ProcessID;
p.exe = QString::fromUtf16(reinterpret_cast<ushort*>(pe.szExeFile));
p.cmdLine = imageName(pe.th32ProcessID);
if (p.cmdLine.isEmpty())
p.cmdLine = p.exe;
processes << p;
}
CloseHandle(snapshot);
reportProcessListUpdated(processes);
}
void LocalProcessList::handlePsError()
{
// Other errors are handled in the finished() handler.
if (m_psProcess->error() == QProcess::FailedToStart)
reportError(m_psProcess->errorString());
}
void LocalProcessList::doKillProcess(const DeviceProcess &process)
{
#ifdef Q_OS_UNIX
if (kill(process.pid, SIGKILL) == -1)
m_error = QString::fromLocal8Bit(strerror(errno));
else
m_error.clear();
QTimer::singleShot(0, this, SLOT(reportDelayedKillStatus()));
#endif
}
void LocalProcessList::reportDelayedKillStatus()
{
if (m_error.isEmpty())
reportProcessKilled();
else
reportError(m_error);
}
} // namespace Internal
} // namespace RemoteLinux
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