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tools lib traceevent, perf tools: Move struct tep_handler definition in a local header file

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As traceevent is going to be transferred into a proper library,
its local data should be protected from the library users.
This patch encapsulates struct tep_handler into a local header,
not visible outside of the library. It implements also a bunch
of new APIs, which library users can use to access tep_handler members.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: linux trace devel <linux-trace-devel@vger.kernel.org>
Cc: tzvetomir stoyanov <tstoyanov@vmware.com>
Link: http://lkml.kernel.org/r/20181005122225.522155df@gandalf.local.home
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Tzvetomir Stoyanov
2018-10-05 12:22:25 -04:00
committed by Arnaldo Carvalho de Melo
parent bbbab191c2
commit bb3dd7e7c4
9 changed files with 416 additions and 211 deletions
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25
tools/perf/util/trace-event-parse.c
View File

@@ -37,10 +37,11 @@ static int get_common_field(struct scripting_context *context,
struct tep_format_field *field;
if (!*size) {
if (!pevent->events)
event = tep_get_first_event(pevent);
if (!event)
return 0;
event = pevent->events[0];
field = tep_find_common_field(event, type);
if (!field)
return 0;
@@ -193,25 +194,29 @@ struct tep_event_format *trace_find_next_event(struct tep_handle *pevent,
struct tep_event_format *event)
{
static int idx;
int events_count;
struct tep_event_format *all_events;
if (!pevent || !pevent->events)
all_events = tep_get_first_event(pevent);
events_count = tep_get_events_count(pevent);
if (!pevent || !all_events || events_count < 1)
return NULL;
if (!event) {
idx = 0;
return pevent->events[0];
return all_events;
}
if (idx < pevent->nr_events && event == pevent->events[idx]) {
if (idx < events_count && event == (all_events + idx)) {
idx++;
if (idx == pevent->nr_events)
if (idx == events_count)
return NULL;
return pevent->events[idx];
return (all_events + idx);
}
for (idx = 1; idx < pevent->nr_events; idx++) {
if (event == pevent->events[idx - 1])
return pevent->events[idx];
for (idx = 1; idx < events_count; idx++) {
if (event == (all_events + (idx - 1)))
return (all_events + idx);
}
return NULL;
}

2
tools/perf/util/trace-event-read.c
View File

@@ -241,7 +241,7 @@ static int read_header_files(struct tep_handle *pevent)
* The commit field in the page is of type long,
* use that instead, since it represents the kernel.
*/
tep_set_long_size(pevent, pevent->header_page_size_size);
tep_set_long_size(pevent, tep_get_header_page_size(pevent));
}
free(header_page);