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8829e56f ACM |
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" | |
124e02be | 5 | #include "evlist.h" |
8829e56f ACM |
6 | |
7 | bool 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 | } | |
124e02be | 33 | |
c9a42699 ACM |
34 | static int evswitch__fprintf_enoent(FILE *fp, const char *evtype, const char *evname) |
35 | { | |
8b3c9ea7 ACM |
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"); | |
c9a42699 ACM |
39 | } |
40 | ||
124e02be ACM |
41 | int 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) { | |
c9a42699 | 46 | evswitch__fprintf_enoent(fp, "on", evswitch->on_name); |
124e02be ACM |
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) { | |
c9a42699 | 55 | evswitch__fprintf_enoent(fp, "off", evswitch->off_name); |
124e02be ACM |
56 | return -ENOENT; |
57 | } | |
58 | } | |
59 | ||
60 | return 0; | |
61 | } |