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POSIX_TRACE_EVENTSET_ADD(3P)SIX Programmer's ManualIX_TRACE_EVENTSET_ADD(3P)
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.
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)
#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);
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.
Upon successful completion, these functions shall return a value of
zero. Otherwise, they shall return the corresponding error number.
These functions may fail if:
EINVAL The value of one of the arguments is invalid.
The following sections are informative.
None.
None.
None.
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.
posix_trace_eventid_equal(3p), posix_trace_get_filter(3p)
The Base Definitions volume of POSIX.1‐2008, trace.h(0p)
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)
Pages that refer to this page: trace.h(0p), posix_trace_get_filter(3p)