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PROLOG | NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | EXAMPLES | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT |
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POSIX_TRACE_START(3P) POSIX Programmer's Manual POSIX_TRACE_START(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_start, posix_trace_stop — trace start and stop (TRACING)
#include <trace.h>
int posix_trace_start(trace_id_t trid);
int posix_trace_stop (trace_id_t trid);
The posix_trace_start() and posix_trace_stop() functions,
respectively, shall start and stop the trace stream identified by the
argument trid.
The effect of calling the posix_trace_start() function shall be
recorded in the trace stream as the POSIX_TRACE_START system trace
event and the status of the trace stream shall become
POSIX_TRACE_RUNNING. If the trace stream is in progress when this
function is called, the POSIX_TRACE_START system trace event shall
not be recorded and the trace stream shall continue to run. If the
trace stream is full, the POSIX_TRACE_START system trace event shall
not be recorded and the status of the trace stream shall not be
changed.
The effect of calling the posix_trace_stop() function shall be
recorded in the trace stream as the POSIX_TRACE_STOP system trace
event and the status of the trace stream shall become
POSIX_TRACE_SUSPENDED. If the trace stream is suspended when this
function is called, the POSIX_TRACE_STOP system trace event shall not
be recorded and the trace stream shall remain suspended. If the trace
stream is full, the POSIX_TRACE_STOP system trace event shall not be
recorded and the status of the trace stream shall not be changed.
Upon successful completion, these functions shall return a value of
zero. Otherwise, they shall return the corresponding error number.
These functions shall fail if:
EINVAL The value of the argument trid does not correspond to an
active trace stream and thus no trace stream was started or
stopped.
EINTR The operation was interrupted by a signal and thus the trace
stream was not necessarily started or stopped.
The following sections are informative.
None.
None.
None.
The posix_trace_start() and posix_trace_stop() functions may be
removed in a future version.
posix_trace_create(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_START(3P)
Pages that refer to this page: trace.h(0p), posix_trace_attr_getinherited(3p), posix_trace_create(3p), posix_trace_event(3p)
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