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perf report: Enable the runtime switching of perf data file

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This is for tui browser only. This patch will check the returned key of
tui hists browser, if it's K_SWITH_INPUT_DATA, then recreate a session
for the new selected data file.

V2: Move the setup_brower() before the "repeat" jump point.

Signed-off-by: Feng Tang <feng.tang@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1359873501-24541-2-git-send-email-feng.tang@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Feng Tang 2013-02-03 14:38:21 +08:00 committed by Arnaldo Carvalho de Melo
parent 341487ab56
commit ad0de0971b
1 changed files with 27 additions and 11 deletions
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38
tools/perf/builtin-report.c
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@ -468,9 +468,17 @@ static int __cmd_report(struct perf_report *rep)
if (use_browser > 0) {
if (use_browser == 1) {
perf_evlist__tui_browse_hists(session->evlist, help,
NULL,
&session->header.env);
ret = perf_evlist__tui_browse_hists(session->evlist,
help,
NULL,
&session->header.env);
/*
* Usually "ret" is the last pressed key, and we only
* care if the key notifies us to switch data file.
*/
if (ret != K_SWITCH_INPUT_DATA)
ret = 0;
} else if (use_browser == 2) {
perf_evlist__gtk_browse_hists(session->evlist, help,
NULL);
@ -708,6 +716,16 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
else
input_name = "perf.data";
}
if (strcmp(input_name, "-") != 0)
setup_browser(true);
else {
use_browser = 0;
perf_hpp__column_enable(PERF_HPP__OVERHEAD);
perf_hpp__init();
}
repeat:
session = perf_session__new(input_name, O_RDONLY,
report.force, false, &report.tool);
if (session == NULL)
@ -733,14 +751,6 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
}
if (strcmp(input_name, "-") != 0)
setup_browser(true);
else {
use_browser = 0;
perf_hpp__column_enable(PERF_HPP__OVERHEAD);
perf_hpp__init();
}
setup_sorting(report_usage, options);
/*
@ -809,6 +819,12 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
}
ret = __cmd_report(&report);
if (ret == K_SWITCH_INPUT_DATA) {
perf_session__delete(session);
goto repeat;
} else
ret = 0;
error:
perf_session__delete(session);
return ret;