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

POSIX_TRACE_ATTR_DESTROY(3P)SIX Programmer's ManualIX_TRACE_ATTR_DESTROY(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_attr_destroy, posix_trace_attr_init — destroy and
       initialize the trace stream attributes object (TRACING)

SYNOPSIS         top

       #include <trace.h>

       int posix_trace_attr_destroy(trace_attr_t *attr);
       int posix_trace_attr_init(trace_attr_t *attr);

DESCRIPTION         top

       The posix_trace_attr_destroy() function shall destroy an initialized
       trace attributes object.  A destroyed attr attributes object can be
       reinitialized using posix_trace_attr_init(); the results of otherwise
       referencing the object after it has been destroyed are undefined.

       The posix_trace_attr_init() function shall initialize a trace
       attributes object attr with the default value for all of the
       individual attributes used by a given implementation. The read-only
       generation-version and clock-resolution attributes of the newly
       initialized trace attributes object shall be set to their appropriate
       values (see Section 2.11.1.2, posix_trace_status_info Structure).

       Results are undefined if posix_trace_attr_init() is called specifying
       an already initialized attr attributes object.

       Implementations may add extensions to the trace attributes object
       structure as permitted in the Base Definitions volume of
       POSIX.1‐2008, Chapter 2, Conformance.

       The resulting attributes object (possibly modified by setting
       individual attributes values), when used by posix_trace_create(),
       defines the attributes of the trace stream created. A single
       attributes object can be used in multiple calls to
       posix_trace_create().  After one or more trace streams have been
       created using an attributes object, any function affecting that
       attributes object, including destruction, shall not affect any trace
       stream previously created. An initialized attributes object also
       serves to receive the attributes of an existing trace stream or trace
       log when calling the posix_trace_get_attr() function.

RETURN VALUE         top

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

ERRORS         top

       The posix_trace_attr_destroy() function may fail if:

       EINVAL The value of attr is invalid.

       The posix_trace_attr_init() function shall fail if:

       ENOMEM Insufficient memory exists to initialize the trace attributes
              object.

       The following sections are informative.

EXAMPLES         top

       None.

APPLICATION USAGE         top

       None.

RATIONALE         top

       None.

FUTURE DIRECTIONS         top

       The posix_trace_attr_destroy() and posix_trace_attr_init() functions
       may be removed in a future version.

SEE ALSO         top

       posix_trace_create(3p), posix_trace_get_attr(3p), uname(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_ATTR_DESTROY(3P)