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class method
Process::Sys.setresgid
Process::Sys.setresgid(rid, eid, sid) → nil
process.c
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static VALUE
p_sys_setresgid(VALUE obj, VALUE rid, VALUE eid, VALUE sid)
{
rb_gid_t rgid, egid, sgid;
check_gid_switch();
rgid = OBJ2GID(rid);
egid = OBJ2GID(eid);
sgid = OBJ2GID(sid);
if (setresgid(rgid, egid, sgid) != 0) rb_sys_fail(0);
return Qnil;
}
Sets the (group) real, effective, and saved user IDs of the current process to rid, eid, and sid respectively. A value of -1 for any value means to leave that ID unchanged. Not available on all platforms.