1*eda14cbcSMatt Macy /* Here to keep the libspl build happy */ 2*eda14cbcSMatt Macy 3*eda14cbcSMatt Macy #ifndef _LIBSPL_ZFS_TRACE_H 4*eda14cbcSMatt Macy #define _LIBSPL_ZFS_TRACE_H 5*eda14cbcSMatt Macy 6*eda14cbcSMatt Macy /* 7*eda14cbcSMatt Macy * The set-error SDT probe is extra static, in that we declare its fake 8*eda14cbcSMatt Macy * function literally, rather than with the DTRACE_PROBE1() macro. This is 9*eda14cbcSMatt Macy * necessary so that SET_ERROR() can evaluate to a value, which wouldn't 10*eda14cbcSMatt Macy * be possible if it required multiple statements (to declare the function 11*eda14cbcSMatt Macy * and then call it). 12*eda14cbcSMatt Macy * 13*eda14cbcSMatt Macy * SET_ERROR() uses the comma operator so that it can be used without much 14*eda14cbcSMatt Macy * additional code. For example, "return (EINVAL);" becomes 15*eda14cbcSMatt Macy * "return (SET_ERROR(EINVAL));". Note that the argument will be evaluated 16*eda14cbcSMatt Macy * twice, so it should not have side effects (e.g. something like: 17*eda14cbcSMatt Macy * "return (SET_ERROR(log_error(EINVAL, info)));" would log the error twice). 18*eda14cbcSMatt Macy */ 19*eda14cbcSMatt Macy #undef SET_ERROR 20*eda14cbcSMatt Macy #define SET_ERROR(err) \ 21*eda14cbcSMatt Macy (__set_error(__FILE__, __func__, __LINE__, err), err) 22*eda14cbcSMatt Macy 23*eda14cbcSMatt Macy 24*eda14cbcSMatt Macy #endif 25