process_cuts.org

environment and command line

Command line is ignored for now. This is a huge shell injection issue and takes a developer like 2 min. to use std::this_process::environment::shell(). Could be done as a custom launcher.

This proposal provides a use case for multiple instances of environment. For process management there is the current process and child process environments – not singleton from 1275

1275 LEWGI in San Diego voted favoribly

From Klemens: std::this_process::environment though. That would make a few things more obvious, because we have an environment class too, that shuold just be used to set it up for the subprocess.

1275 also has arguments does this work for our proposal? The implementation is not complete for 1275. If the R1 has the environment as immutable then it will not work – process needs to modify.

args are available before main in 1275

Enhanced system details

template<class... Args>
int system(Args&&... args) {
  process c(forward<Args>(args)...,);
  if (!c.valid())
    return -1;
  c.wait();
  return c.exit_code();
}

Extension of fstream

The standard file streams (fstream~/~ofstream~/~ifstream) shall have a member function that return the native handle of the opened file, so that process can use those for forwarding.

namespace std {
  class /* basic_(o|i)*fstream */ {
    // ...
  public:
    // ...
    using native_handle_type = implementation-defined; 
    native_handle_type native_handle() const;
    // ...
  };
}

if we don’t have wait_for can we still detach?

Yes.