This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface

       None.

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1-2017, Standard
       for  Information  Technology  --  Portable  Operating  System  Interface  (POSIX),  The  Open  Group Base
       Specifications Issue 7, 2018 Edition, Copyright (C) 2018 by the Institute of Electrical  and  Electronics
       Engineers, Inc and The Open Group.  In the event of any discrepancy between this version and the original
       IEEE  and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document.
       The original Standard can be obtained online at http://www.opengroup.org/unix/online.html .

       Any typographical or formatting errors that appear in this page are most likely to have  been  introduced
       during   the   conversion  of  the  source  files  to  man  page  format.  To  report  such  errors,  see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group                                   2017           POSIX_TRACE_EVEN...ELIST_GETNEXT_ID(3POSIX)

       The first time posix_trace_eventtypelist_getnext_id()  is  called,  the  function  shall  return  in  the
       variable  pointed  to  by  event the first trace event type identifier of the list of trace events of the
       trace stream identified by the trid argument. Successive calls to  posix_trace_eventtypelist_getnext_id()
       return  in  the variable pointed to by event the next trace event type identifier in that same list. Each
       time a trace event type identifier is successfully written into the variable  pointed  to  by  the  event
       argument,  the  variable  pointed to by the unavailable argument shall be set to zero. When no more trace
       event type identifiers are available, and so none is returned, the variable pointed to by the unavailable
       argument shall be set to a value different from zero.

       The posix_trace_eventtypelist_rewind() function shall reset the next trace event type  identifier  to  be
       read  to  the  first  trace  event type identifier from the list of trace events used in the trace stream
       identified by trid.

       These functions shall fail if:

       EINVAL The trid argument was not a valid trace stream identifier.

       Thefollowingsectionsareinformative.

       None.

       The  posix_trace_eventtypelist_getnext_id()  and  posix_trace_eventtypelist_rewind()  functions  may   be
       removed in a future version.

       posix_trace_eventtypelist_getnext_id,  posix_trace_eventtypelist_rewind — iterate over a mapping of trace
       event types (TRACING)

       This  manual  page  is part of the POSIX Programmer's Manual.  The Linux implementation of this interface
       may differ (consult the corresponding Linux manual page for details of Linux behavior), or the  interface
       may not be implemented on Linux.

       None.

       Upon successful completion, these functions shall return a value of zero. Otherwise,  they  shall  return
       the corresponding error number.

       The  posix_trace_eventtypelist_getnext_id()  function stores the trace event type identifier value in the
       object pointed to by event, if successful.

posix_trace_event(), posix_trace_eventid_equal(), posix_trace_getnext_event()

       The Base Definitions volume of POSIX.1‐2017, <trace.h>

       #include <trace.h>

       int posix_trace_eventtypelist_getnext_id(trace_id_t trid,
           trace_event_id_t *restrict event, int *restrict unavailable);
       int posix_trace_eventtypelist_rewind(trace_id_t trid);