1// SPDX-License-Identifier: GPL-2.0-only
 2// 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 = perf_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 = perf_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}

 1// SPDX-License-Identifier: GPL-2.0-only
 2// 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}