diff options
Diffstat (limited to 'src/corelib/io/qprocess.cpp')
| -rw-r--r-- | src/corelib/io/qprocess.cpp | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/src/corelib/io/qprocess.cpp b/src/corelib/io/qprocess.cpp index 1db8db67117..a7107507329 100644 --- a/src/corelib/io/qprocess.cpp +++ b/src/corelib/io/qprocess.cpp @@ -816,8 +816,16 @@ void QProcessPrivate::Channel::clear() Its members are: \list \li UnixProcessParameters::flags Flags, see QProcess::UnixProcessFlags + \li UnixProcessParameters::lowestFileDescriptorToClose The lowest file + descriptor to close. \endlist + When the QProcess::UnixProcessFlags::CloseFileDescriptors flag is set in + the \c flags field, QProcess closes the application's open file descriptors + before executing the child process. The descriptors 0, 1, and 2 (that is, + \c stdin, \c stdout, and \c stderr) are left alone, along with the ones + numbered lower than the value of the \c lowestFileDescriptorToClose field. + All of the settings above can also be manually achieved by calling the respective POSIX function from a handler set with QProcess::setChildProcessModifier(). This structure allows QProcess to deal @@ -835,10 +843,11 @@ void QProcessPrivate::Channel::clear() These flags can be used in the \c flags field of \l UnixProcessParameters. - \value CloseNonStandardFileDescriptors Close all file descriptors besides - \c stdin, \c stdout, and \c stderr, preventing any currently open - descriptor in the parent process from accidentally leaking to the - child. + \value CloseFileDescriptors Close all file descriptors above the threshold + defined by \c lowestFileDescriptorToClose, preventing any currently + open descriptor in the parent process from accidentally leaking to the + child. The \c stdin, \c stdout, and \c stderr file descriptors are + never closed. \value IgnoreSigPipe Always sets the \c SIGPIPE signal to ignored (\c SIG_IGN), even if the \c ResetSignalHandlers flag was set. By |