diff options
author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2004-02-09 07:30:17 +0000 |
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committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2004-02-09 07:30:17 +0000 |
commit | 4f5b070378fdf4c321fabaae707ba331f0525ed7 (patch) | |
tree | 3a3408ff4be5d498360388c1dd2064b2130f6014 /process.c | |
parent | 216a50575199129b1e40361ccce60b992ec3b05b (diff) | |
download | ruby-4f5b070378fdf4c321fabaae707ba331f0525ed7.tar.gz |
* process.c (detach_process_watcher): return the last status.
[ruby-dev:22841]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@5656 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'process.c')
-rw-r--r-- | process.c | 13 |
1 files changed, 9 insertions, 4 deletions
@@ -809,14 +809,14 @@ proc_waitall() } static VALUE -detach_process_watcer(pid_p) +detach_process_watcher(pid_p) int *pid_p; { int cpid, status; for (;;) { cpid = rb_waitpid(*pid_p, &status, WNOHANG); - if (cpid == -1) return Qnil; + if (cpid == -1) return rb_last_status; rb_thread_sleep(1); } } @@ -825,7 +825,7 @@ VALUE rb_detach_process(pid) int pid; { - return rb_thread_create(detach_process_watcer, (void*)&pid); + return rb_thread_create(detach_process_watcher, (void*)&pid); } @@ -843,7 +843,12 @@ rb_detach_process(pid) * only when you do not intent to explicitly wait for the child to * terminate. <code>detach</code> only checks the status * periodically (currently once each second). - * + * + * The waiting thread returns the exit status of the detached process + * when it terminates, so you can use <code>Thread#join</code> to + * know the result. If specified _pid_ is not a valid child process + * ID, the thread returns +nil+ immediately. + * * In this first example, we don't reap the first child process, so * it appears as a zombie in the process status display. * |