Originální popis anglicky:
posix_trace_eventtypelist_getnext_id, posix_trace_eventtypelist_rewind - iterate
over a mapping of trace event types (
TRACING)
Návod, kniha: POSIX Programmer's Manual
#include <trace.h>
int posix_trace_eventtypelist_getnext_id(trace_id_t
trid,
trace_event_id_t *restrict
event, int *restrict
unavailable );
int posix_trace_eventtypelist_rewind(trace_id_t
trid);
The first time
posix_trace_eventtypelist_getnext_id() is called, the
function shall return in the variable pointed to by
event the first
trace event type identifier of the list of trace events of the trace stream
identified by the
trid argument. Successive calls to
posix_trace_eventtypelist_getnext_id() return in the variable pointed
to by
event the next trace event type identifier in that same list.
Each time a trace event type identifier is successfully written into the
variable pointed to by the
event argument, the variable pointed to by
the
unavailable argument shall be set to zero. When no more trace event
type identifiers are available, and so none is returned, the variable pointed
to by the
unavailable argument shall be set to a value different from
zero.
The
posix_trace_eventtypelist_rewind() function shall reset the next
trace event type identifier to be read to the first trace event type
identifier from the list of trace events used in the trace stream identified
by
trid.
Upon successful completion, these functions shall return a value of zero.
Otherwise, they shall return the corresponding error number.
The
posix_trace_eventtypelist_getnext_id() function stores the trace
event type identifier value in the object pointed to by
event, if
successful.
These functions shall fail if:
- EINVAL
- The trid argument was not a valid trace stream
identifier.
The following sections are informative.
None.
None.
None.
None.
posix_trace_event() ,
posix_trace_getnext_event() ,
posix_trace_trid_eventid_open() , 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
.
