PROLOG | NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | EXAMPLES | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT

POSIX_TRACE_EVENTSET_ADD(3P)SIX Programmer's ManualIX_TRACE_EVENTSET_ADD(3P)

PROLOG         top

       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.

NAME         top

       posix_trace_eventset_add, posix_trace_eventset_del,
       posix_trace_eventset_empty, posix_trace_eventset_fill,
       posix_trace_eventset_ismember — manipulate trace event type sets
       (TRACING)

SYNOPSIS         top

       #include <trace.h>

       int posix_trace_eventset_add(trace_event_id_t event_id,
           trace_event_set_t *set);
       int posix_trace_eventset_del(trace_event_id_t event_id,
           trace_event_set_t *set);
       int posix_trace_eventset_empty(trace_event_set_t *set);
       int posix_trace_eventset_fill(trace_event_set_t *set, int what);
       int posix_trace_eventset_ismember(trace_event_id_t event_id,
           const trace_event_set_t *restrict set, int *restrict ismember);

DESCRIPTION         top

       These primitives manipulate sets of trace event types. They operate
       on data objects addressable by the application, not on the current
       trace event filter of any trace stream.

       The posix_trace_eventset_add() and posix_trace_eventset_del()
       functions, respectively, shall add or delete the individual trace
       event type specified by the value of the argument event_id to or from
       the trace event type set pointed to by the argument set.  Adding a
       trace event type already in the set or deleting a trace event type
       not in the set shall not be considered an error.

       The posix_trace_eventset_empty() function shall initialize the trace
       event type set pointed to by the set argument such that all trace
       event types defined, both system and user, shall be excluded from the
       set.

       The posix_trace_eventset_fill() function shall initialize the trace
       event type set pointed to by the argument set, such that the set of
       trace event types defined by the argument what shall be included in
       the set. The value of the argument what shall consist of one of the
       following values, as defined in the <trace.h> header:

       POSIX_TRACE_WOPID_EVENTS
             All the process-independent implementation-defined system trace
             event types are included in the set.

       POSIX_TRACE_SYSTEM_EVENTS
             All the implementation-defined system trace event types are
             included in the set, as are those defined in POSIX.1‐2008.

       POSIX_TRACE_ALL_EVENTS
             All trace event types defined, both system and user, are
             included in the set.

       Applications shall call either posix_trace_eventset_empty() or
       posix_trace_eventset_fill() at least once for each object of type
       trace_event_set_t prior to any other use of that object. If such an
       object is not initialized in this way, but is nonetheless supplied as
       an argument to any of the posix_trace_eventset_add(),
       posix_trace_eventset_del(), or posix_trace_eventset_ismember()
       functions, the results are undefined.

       The posix_trace_eventset_ismember() function shall test whether the
       trace event type specified by the value of the argument event_id is a
       member of the set pointed to by the argument set.  The value returned
       in the object pointed to by ismember argument is zero if the trace
       event type identifier is not a member of the set and a value
       different from zero if it is a member of the set.

RETURN VALUE         top

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

ERRORS         top

       These functions may fail if:

       EINVAL The value of one of the arguments is invalid.

       The following sections are informative.

EXAMPLES         top

       None.

APPLICATION USAGE         top

       None.

RATIONALE         top

       None.

FUTURE DIRECTIONS         top

       The posix_trace_eventset_add(), posix_trace_eventset_del(),
       posix_trace_eventset_empty(), posix_trace_eventset_fill(), and
       posix_trace_eventset_ismember() functions may be removed in a future
       version.

SEE ALSO         top

       posix_trace_eventid_equal(3p), posix_trace_get_filter(3p)

       The Base Definitions volume of POSIX.1‐2008, trace.h(0p)

COPYRIGHT         top

       Portions of this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1, 2013 Edition, Standard for Information
       Technology -- Portable Operating System Interface (POSIX), The Open
       Group Base Specifications Issue 7, Copyright (C) 2013 by the
       Institute of Electrical and Electronics Engineers, Inc and The Open
       Group.  (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1
       applied.) 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.unix.org/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                 2013        POSIX_TRACE_EVENTSET_ADD(3P)