Originální popis anglicky:
posix_trace_start, posix_trace_stop - trace start and stop (
TRACING)
Návod, kniha: POSIX Programmer's Manual
#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.
None.
posix_trace_create() , the Base Definitions volume of
IEEE Std 1003.1-2001,
<trace.h>
Portions of this text are reprinted and reproduced in electronic form from IEEE
Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable
Operating System Interface (POSIX), The Open Group Base Specifications Issue
6, Copyright (C) 2001-2003 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
.
