Add non-static QProcess::startDetached

The three static QProcess::startDetached overloads support a limited number of
features: program, arguments and working directory. To support more features of
QProcess (without adding a plethora of overloads) we add a non-static method
startDetached that can be used as follows:

QProcess p;
p.setProgram("cat");
p.setArguments("meow");
p.setWorkingDirectory("/tmp");
if (!p.startDetached())
    qWarning("Cannot start process.");

We plan to add support for nativeArguments, processEnvironment,
standard{Output|Error}File and maybe more in subsequent commits.

[ChangeLog][QtCore][QProcess] Added non-static QProcess::startDetached
to support more features for detached processes.

Task-number: QTBUG-2058
Task-number: QTBUG-2284
Task-number: QTBUG-37656
Task-number: QTBUG-52405
Task-number: QTBUG-57687
Change-Id: If6fdd57ecb28cd13aa5fff566216a4177f81d339
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/corelib/io/qprocess.h b/src/corelib/io/qprocess.h
index 19157bdd02..c8aef2f0b1 100644
--- a/src/corelib/io/qprocess.h
+++ b/src/corelib/io/qprocess.h
@@ -163,6 +163,7 @@ public:
     void start(const QString &command, OpenMode mode = ReadWrite);
 #endif
     void start(OpenMode mode = ReadWrite);
+    bool startDetached(qint64 *pid = nullptr);
     bool open(OpenMode mode = ReadWrite) Q_DECL_OVERRIDE;
 
     QString program() const;