QProcess を使用して libs3 から s3 プログラムを実行しています。
QString S3::runS3(const QStringList &args, const QByteArray &data)
{
QProcess s3;
QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
env.insert("S3_ACCESS_KEY_ID", "xxx");
env.insert("S3_SECRET_ACCESS_KEY", "xxx");
s3.setProcessEnvironment(env);
s3.start("s3", args);
if (!s3.waitForStarted())
{
qWarning() << "Could not start the s3 process!";
return QString();
}
if (data.size() > 0)
{
s3.write(data);
s3.closeWriteChannel();
}
if (!s3.waitForFinished())
{
qWarning() << "The s3 process did not complete successfully";
if (s3.error() == QProcess::Timedout)
{
qWarning() << "The s3 process took too long to execute";
}
qWarning() << QString(s3.readAllStandardOutput());
qWarning() << QString(s3.readAllStandardError());
qWarning() << s3.exitCode();
qWarning() << s3.exitStatus();
qWarning() << s3.pid();
return QString();
}
return QString(s3.readAll());
}
ただし、このコードを実行するたびに、waitForFinished メソッドは 30 秒間待機し、次の出力を取得します。
The s3 process did not complete successfully
The s3 process took too long to execute
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"
""
0
0
18506
QProcess: Destroyed while process is still running.
waitForFinished がタイムアウトする前に、Activity Monitor.app で S3 プロセスが明らかに実行されていないことがわかります。どうしたの？