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- // SPDX-License-Identifier: GPL-2.0-only
- // Copyright (C) 2019, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
- #include "evswitch.h"
- #include "evlist.h"
- bool evswitch__discard(struct evswitch *evswitch, struct evsel *evsel)
- {
- if (evswitch->on && evswitch->discarding) {
- if (evswitch->on != evsel)
- return true;
- evswitch->discarding = false;
- if (!evswitch->show_on_off_events)
- return true;
- return false;
- }
- if (evswitch->off && !evswitch->discarding) {
- if (evswitch->off != evsel)
- return false;
- evswitch->discarding = true;
- if (!evswitch->show_on_off_events)
- return true;
- }
- return false;
- }
- static int evswitch__fprintf_enoent(FILE *fp, const char *evtype, const char *evname)
- {
- int printed = fprintf(fp, "ERROR: switch-%s event not found (%s)\n", evtype, evname);
- return printed += fprintf(fp, "HINT: use 'perf evlist' to see the available event names\n");
- }
- int evswitch__init(struct evswitch *evswitch, struct evlist *evlist, FILE *fp)
- {
- if (evswitch->on_name) {
- evswitch->on = perf_evlist__find_evsel_by_str(evlist, evswitch->on_name);
- if (evswitch->on == NULL) {
- evswitch__fprintf_enoent(fp, "on", evswitch->on_name);
- return -ENOENT;
- }
- evswitch->discarding = true;
- }
- if (evswitch->off_name) {
- evswitch->off = perf_evlist__find_evsel_by_str(evlist, evswitch->off_name);
- if (evswitch->off == NULL) {
- evswitch__fprintf_enoent(fp, "off", evswitch->off_name);
- return -ENOENT;
- }
- }
- return 0;
- }
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