method

egid=

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egid=(p1) public

Sets the effective group ID for this process. Not available on all platforms.

static VALUE
proc_setegid(VALUE obj, VALUE egid)
{
    rb_gid_t gid;

    check_gid_switch();

    gid = NUM2GIDT(egid);
#if defined(HAVE_SETRESGID)
    if (setresgid(-1, gid, -1) < 0) rb_sys_fail(0);
#elif defined HAVE_SETREGID
    if (setregid(-1, gid) < 0) rb_sys_fail(0);
#elif defined HAVE_SETEGID
    if (setegid(gid) < 0) rb_sys_fail(0);
#elif defined HAVE_SETGID
    if (gid == getgid()) {
        if (setgid(gid) < 0) rb_sys_fail(0);
    }
    else {
        rb_notimplement();
    }
#else
    rb_notimplement();
#endif
    return egid;
}

egid=

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