1/* Here to keep the libspl build happy */
2
3#ifndef _LIBSPL_ZFS_TRACE_H
4#define	_LIBSPL_ZFS_TRACE_H
5
6/*
7 * The set-error SDT probe is extra static, in that we declare its fake
8 * function literally, rather than with the DTRACE_PROBE1() macro.  This is
9 * necessary so that SET_ERROR() can evaluate to a value, which wouldn't
10 * be possible if it required multiple statements (to declare the function
11 * and then call it).
12 *
13 * SET_ERROR() uses the comma operator so that it can be used without much
14 * additional code.  For example, "return (EINVAL);" becomes
15 * "return (SET_ERROR(EINVAL));".  Note that the argument will be evaluated
16 * twice, so it should not have side effects (e.g. something like:
17 * "return (SET_ERROR(log_error(EINVAL, info)));" would log the error twice).
18 */
19#undef SET_ERROR
20#define	SET_ERROR(err) \
21	(__set_error(__FILE__, __func__, __LINE__, err), err)
22
23
24#endif
25