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pty.c: do nothing if terminated already

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* ext/pty/pty.c (pty_detach_process): if the child process has
  terminated already, return immediately without starting a thread
  to detach it.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46129 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2014-05-26 04:35:17 +00:00
parent fba33accdb
commit 00f78058b6
1 changed files with 5 additions and 0 deletions
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5
ext/pty/pty.c
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@ -538,6 +538,11 @@ pty_open(VALUE klass)
static VALUE
pty_detach_process(struct pty_info *info)
{
#ifdef WNOHANG
int st;
if (rb_waitpid(info->child_pid, &st, WNOHANG) <= 0)
return Qnil;
#endif
rb_detach_process(info->child_pid);
return Qnil;
}