qt 6.5.1 original

tests/auto/corelib/io/qprocess/testDetached/CMakeLists.txt

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+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+#####################################################################
+## testDetached Binary:
+#####################################################################
+
+qt_internal_add_executable(testDetached
+    OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/"
+    SOURCES
+        main.cpp
+)

tests/auto/corelib/io/qprocess/testDetached/main.cpp

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+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+#include <QCoreApplication>
+#include <QDebug>
+#include <QStringList>
+#include <QFile>
+#include <QDir>
+
+#include <stdio.h>
+
+#if defined(Q_OS_UNIX)
+#include <sys/types.h>
+#include <unistd.h>
+#elif defined(Q_OS_WIN)
+#include <windows.h>
+#endif
+
+static void writeStuff(QFile &f)
+{
+    f.write(QDir::currentPath().toUtf8());
+    f.putChar('\n');
+#if defined(Q_OS_UNIX)
+    f.write(QByteArray::number(quint64(getpid())));
+#elif defined(Q_OS_WIN)
+    f.write(QByteArray::number(quint64(GetCurrentProcessId())));
+#endif
+    f.putChar('\n');
+    f.write(qgetenv("tst_QProcess"));
+    f.putChar('\n');
+}
+
+struct Args
+{
+    int exitCode = 0;
+    QByteArray errorMessage;
+    QString fileName;
+    FILE *channel = nullptr;
+    QByteArray channelName;
+};
+
+static Args parseArguments(const QStringList &args)
+{
+    Args result;
+    if (args.size() < 2) {
+        result.exitCode = 128;
+        result.errorMessage = "Usage: testDetached [--out-channel={stdout|stderr}] filename.txt\n";
+        return result;
+    }
+    for (const QString &arg : args) {
+        if (arg.startsWith("--")) {
+            if (!arg.startsWith("--out-channel=")) {
+                result.exitCode = 2;
+                result.errorMessage = "Unknown argument " + arg.toLocal8Bit();
+                return result;
+            }
+            result.channelName = arg.mid(14).toLocal8Bit();
+            if (result.channelName == "stdout") {
+                result.channel = stdout;
+            } else if (result.channelName == "stderr") {
+                result.channel = stderr;
+            } else {
+                result.exitCode = 3;
+                result.errorMessage = "Unknown channel " + result.channelName;
+                return result;
+            }
+        } else {
+            result.fileName = arg;
+        }
+    }
+    return result;
+}
+
+int main(int argc, char **argv)
+{
+    QCoreApplication app(argc, argv);
+
+    const Args args = parseArguments(app.arguments());
+    if (args.exitCode) {
+        fprintf(stderr, "testDetached: %s\n", args.errorMessage.constData());
+        return args.exitCode;
+    }
+
+    if (args.channel) {
+        QFile channel;
+        if (!channel.open(args.channel, QIODevice::WriteOnly | QIODevice::Text)) {
+            fprintf(stderr, "Cannot open channel %s for writing: %s\n",
+                    qPrintable(args.channelName), qPrintable(channel.errorString()));
+            return 4;
+        }
+        writeStuff(channel);
+    }
+
+    QFile f(args.fileName);
+    if (!f.open(QIODevice::WriteOnly | QIODevice::Truncate | QIODevice::Text)) {
+        fprintf(stderr, "Cannot open %s for writing: %s\n",
+                qPrintable(f.fileName()), qPrintable(f.errorString()));
+        return 1;
+    }
+
+    writeStuff(f);
+    f.close();
+
+    return 0;
+}