method

check

v1_9_2_180 - Show latest stable - 0 notes - Class: PTY

1_8_6_287
1_8_7_72
1_8_7_330
1_9_1_378
1_9_2_180 (0)
1_9_3_125 (38)
1_9_3_392 (0)
2_1_10 (-9)
2_2_9 (0)
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2_5_5 (0)
2_6_3 (0)
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check(p1, p2 = v2) public

checks the status of the child process specified by pid, and returns nil if the process is still alive and active. Otherwise, returns +Process::Status+ about the process if raise is false, or +PTY::ChildExited+ exception is raised.

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static VALUE
pty_check(int argc, VALUE *argv, VALUE self)
{
    VALUE pid, exc;
    pid_t cpid;
    int status;

    rb_scan_args(argc, argv, "11", &pid, &exc);
    cpid = rb_waitpid(NUM2PIDT(pid), &status, WNOHANG|WUNTRACED);
    if (cpid == -1) return Qnil;

    if (!RTEST(exc)) return rb_last_status_get();
    raise_from_check(cpid, status);
    return Qnil;                /* not reached */
}

check

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