From: "Ara.T.Howard" Date: 2005-09-26T00:43:12+09:00 Subject: Re: [PATCH] allow Open3.popen3 to set $? based on grandchild status rather than child status --=-Z81GGuop5WtosZG1KPHQ Content-Type: MULTIPART/Mixed; BOUNDARY="=-Z81GGuop5WtosZG1KPHQ" This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --=-Z81GGuop5WtosZG1KPHQ Content-Type: TEXT/PLAIN; CHARSET=US-ASCII; format=flowed Content-ID: On Sun, 25 Sep 2005, Andrew S. Townley wrote: > > Hi folks, > > I was playing with Open3.popen3 to try and manipulate some child > processes where I needed both the return code and control of stderr, but > it didn't seem to return the correct exit status. I don't know if this > is correct or not, but it seems to do what I think it should. > Maybe there's a lot of code that depends on the existing behavior, but I > think with the version in 1.8, you never get the return status of the > grandchild process. Oh, and I also cleaned up the formatting (changed > tabs to spaces). > > I've attached the patch (generated by: $ diff -urN -F^f > /usr/lib/ruby/1.8/open3.rb open3.rb >/tmp/open3.patch) if anyone's > interested. session allows you to do this - but you'll running through sh/bash like: require 'session' sh = Session::new stdout, stdout = sh.exexute 'a.out' exit_status = sh.exit_status session is also thread safe. another thing you might be interested in is open4, eg: pid, stdin, stdout, stderr = Open4::popen4 'a.out' exit_status = Process::waitpid2(cid).exitstatus both are at http://codeforpeople.com/lib/ruby http://codeforpeople.com/lib/ruby/session/ http://codeforpeople.com/lib/ruby/open4/ and listed on the raa. cheers. -a -- =============================================================================== | email :: ara [dot] t [dot] howard [at] noaa [dot] gov | phone :: 303.497.6469 | Your life dwells amoung the causes of death | Like a lamp standing in a strong breeze. --Nagarjuna =============================================================================== --=-Z81GGuop5WtosZG1KPHQ Content-Type: TEXT/X-PATCH; NAME=open3.patch; CHARSET=ANSI_X3.4-1968 Content-Transfer-Encoding: BASE64 Content-ID: Content-Description: Content-Disposition: ATTACHMENT; FILENAME=open3.patch LS0tIC91c3IvbGliL3J1YnkvMS44L29wZW4zLnJiCTIwMDMtMDktMTggMTQ6NDM6NDIuMDAwMDAw MDAwICswMTAwDQorKysgb3BlbjMucmIJMjAwNS0wOS0yNSAxMzo1NDoyNy4zNDc3NTM0NDAgKzAx MDANCkBAIC0xLDEzICsxLDE0IEBADQotIyBvcGVuMy5yYjogU3Bhd24gYSBwcm9ncmFtIGxpa2Ug cG9wZW4sIGJ1dCB3aXRoIHN0ZGVyciwgdG9vLiBZb3UgbWlnaHQgYWxzbw0KLSMgd2FudCB0byB1 c2UgdGhpcyBpZiB5b3Ugd2FudCB0byBieXBhc3MgdGhlIHNoZWxsLiAoQnkgcGFzc2luZyBtdWx0 aXBsZSBhcmdzLA0KLSMgd2hpY2ggSU8jcG9wZW4gZG9lcyBub3QgYWxsb3cpDQorIyBvcGVuMy5y YjogU3Bhd24gYSBwcm9ncmFtIGxpa2UgcG9wZW4sIGJ1dCB3aXRoIHN0ZGVyciwgdG9vLg0KKyMg WW91IG1pZ2h0IGFsc28gd2FudCB0byB1c2UgdGhpcyBpZiB5b3Ugd2FudCB0byBieXBhc3MgdGhl DQorIyBzaGVsbC4gKEJ5IHBhc3NpbmcgbXVsdGlwbGUgYXJncywgd2hpY2ggSU8jcG9wZW4gZG9l cyBub3QNCisjIGFsbG93KQ0KICMNCiAjIFVzYWdlOg0KLSMJcmVxdWlyZSAib3BlbjMiDQorIyAg cmVxdWlyZSAib3BlbjMiDQogIw0KICMgICAgICBzdGRpbiwgc3Rkb3V0LCBzdGRlcnIgPSBPcGVu My5wb3BlbjMoJ25yb2ZmIC1tYW4nKQ0KICMgIG9yDQotIwlpbmNsdWRlIE9wZW4zDQorIyAgaW5j bHVkZSBPcGVuMw0KICMgICAgICBzdGRpbiwgc3Rkb3V0LCBzdGRlcnIgPSBwb3BlbjMoJ25yb2Zm IC1tYW4nKQ0KIA0KIG1vZHVsZSBPcGVuMw0KQEAgLTE5LDIzICsyMCwyNCBAQA0KIA0KICAgICBw aWQgPSBmb3Jrew0KICAgICAgICMgY2hpbGQNCi0gICAgICBmb3Jrew0KLQkjIGdyYW5kY2hpbGQN Ci0JcHdbMV0uY2xvc2UNCi0JU1RESU4ucmVvcGVuKHB3WzBdKQ0KLQlwd1swXS5jbG9zZQ0KLQ0K LQlwclswXS5jbG9zZQ0KLQlTVERPVVQucmVvcGVuKHByWzFdKQ0KLQlwclsxXS5jbG9zZQ0KLQ0K LQlwZVswXS5jbG9zZQ0KLQlTVERFUlIucmVvcGVuKHBlWzFdKQ0KLQlwZVsxXS5jbG9zZQ0KKyAg ICAgIHBpZDIgPSBmb3Jrew0KKyAgICAgICAgIyBncmFuZGNoaWxkDQorICAgICAgICBwd1sxXS5j bG9zZQ0KKyAgICAgICAgU1RESU4ucmVvcGVuKHB3WzBdKQ0KKyAgICAgICAgcHdbMF0uY2xvc2UN CisNCisgICAgICAgIHByWzBdLmNsb3NlDQorICAgICAgICBTVERPVVQucmVvcGVuKHByWzFdKQ0K KyAgICAgICAgcHJbMV0uY2xvc2UNCisNCisgICAgICAgIHBlWzBdLmNsb3NlDQorICAgICAgICBT VERFUlIucmVvcGVuKHBlWzFdKQ0KKyAgICAgICAgcGVbMV0uY2xvc2UNCiANCi0JZXhlYygqY21k KQ0KKyAgICAgICAgZXhlYygqY21kKQ0KICAgICAgIH0NCi0gICAgICBleGl0IQ0KKyAgICAgIFBy b2Nlc3Mud2FpdHBpZChwaWQyKQ0KKyAgICAgIGV4aXQhICQ/LmV4aXRzdGF0dXMNCiAgICAgfQ0K IA0KICAgICBwd1swXS5jbG9zZQ0KQEAgLTQ2LDkgKzQ4LDkgQEANCiAgICAgcHdbMV0uc3luYyA9 IHRydWUNCiAgICAgaWYgZGVmaW5lZD8geWllbGQNCiAgICAgICBiZWdpbg0KLQlyZXR1cm4geWll bGQoKnBpKQ0KKyAgICAgICAgcmV0dXJuIHlpZWxkKCpwaSkNCiAgICAgICBlbnN1cmUNCi0JcGku ZWFjaHt8cHwgcC5jbG9zZSB1bmxlc3MgcC5jbG9zZWQ/fQ0KKyAgICAgICAgcGkuZWFjaHt8cHwg cC5jbG9zZSB1bmxlc3MgcC5jbG9zZWQ/fQ0KICAgICAgIGVuZA0KICAgICBlbmQNCiAgICAgcGkN Cg== --=-Z81GGuop5WtosZG1KPHQ-- --=-Z81GGuop5WtosZG1KPHQ--