Thomas Kho wrote:
It seems that it is not currently possible to get the exit code of a unix program executed with _wspawnv(_P_WAIT, [unix app], [args]) because CreateProcess() does not return a handle to the new process. _wspawnv() uses the handle to WaitForSingleObject() the end of execution and also needs it to GetExitCodeProcess().
Is implementation of handles to unix processes something that could be done and pass muster, or just a corner case for a feature that doesn't add to Windows compatibility?
FWIW, my application for this is to run a shell script and get the return value. Under Windows, I run the shell script with Cygwin; under Wine, I had originally planned to execute it directly.
the point is even larger: a unix subprocess doesn't get a handle, so all the operations requiring such handle don't work (suspend/resume, debugging, waiting for the end of sub process, exit code, priority, affinity, enumeration...)
One of the easiest way would be to use a wrapper (being a winelib app), that could work around some of the issues (wait for the end, exit code, enumeration - to some extent -...). Including this behavior directly into wine kernel code would be more complicated, still doable.
That wrapper would be simpler than winevdm (as it shouldn't support inter-process communication).
A+