| /* Here to keep the libspl build happy */ |
| |
| #ifndef _LIBSPL_SPL_TRACE_H |
| #define _LIBSPL_SPL_TRACE_H |
| |
| /* |
| * The set-error SDT probe is extra static, in that we declare its fake |
| * function literally, rather than with the DTRACE_PROBE1() macro. This is |
| * necessary so that SET_ERROR() can evaluate to a value, which wouldn't |
| * be possible if it required multiple statements (to declare the function |
| * and then call it). |
| * |
| * SET_ERROR() uses the comma operator so that it can be used without much |
| * additional code. For example, "return (EINVAL);" becomes |
| * "return (SET_ERROR(EINVAL));". Note that the argument will be evaluated |
| * twice, so it should not have side effects (e.g. something like: |
| * "return (SET_ERROR(log_error(EINVAL, info)));" would log the error twice). |
| */ |
| #undef SET_ERROR |
| #define SET_ERROR(err) \ |
| (__set_error(__FILE__, __func__, __LINE__, err), err) |
| |
| |
| #endif |
