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1// SPDX-License-Identifier: GPL-2.0-only2// Copyright (C) 2019, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>3 4#include "evswitch.h"5#include "evlist.h"6 7bool evswitch__discard(struct evswitch *evswitch, struct evsel *evsel)8{9 if (evswitch->on && evswitch->discarding) {10 if (evswitch->on != evsel)11 return true;12 13 evswitch->discarding = false;14 15 if (!evswitch->show_on_off_events)16 return true;17 18 return false;19 }20 21 if (evswitch->off && !evswitch->discarding) {22 if (evswitch->off != evsel)23 return false;24 25 evswitch->discarding = true;26 27 if (!evswitch->show_on_off_events)28 return true;29 }30 31 return false;32}33 34static int evswitch__fprintf_enoent(FILE *fp, const char *evtype, const char *evname)35{36 int printed = fprintf(fp, "ERROR: switch-%s event not found (%s)\n", evtype, evname);37 38 return printed += fprintf(fp, "HINT: use 'perf evlist' to see the available event names\n");39}40 41int evswitch__init(struct evswitch *evswitch, struct evlist *evlist, FILE *fp)42{43 if (evswitch->on_name) {44 evswitch->on = evlist__find_evsel_by_str(evlist, evswitch->on_name);45 if (evswitch->on == NULL) {46 evswitch__fprintf_enoent(fp, "on", evswitch->on_name);47 return -ENOENT;48 }49 evswitch->discarding = true;50 }51 52 if (evswitch->off_name) {53 evswitch->off = evlist__find_evsel_by_str(evlist, evswitch->off_name);54 if (evswitch->off == NULL) {55 evswitch__fprintf_enoent(fp, "off", evswitch->off_name);56 return -ENOENT;57 }58 }59 60 return 0;61}62