// SPDX-License-Identifier: GPL-2.0-only// Copyright (C) 2019, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> #include <errno.h>#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 = 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 = 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;}