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authorArnaldo Carvalho de Melo <acme@redhat.com>2015-06-17 19:40:26 (GMT)
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-06-17 19:40:26 (GMT)
commit2b56bcfb6f4bb0aa0813b6ee1dde8f5b23fce5d4 (patch)
tree34a4113da24f1ec4593936d06653f25b9ba5646a /tools/perf
parent7951722da2963cc1f1a7831a37aa2311ac927056 (diff)
downloadlinux-2b56bcfb6f4bb0aa0813b6ee1dde8f5b23fce5d4.tar.xz
perf evlist: Add toggle_enable() method
For an upcoming feature in 'perf top' we will have a hotkey to enable/disable events, so remember if the events in the list are enabled or disabled and allows toggling this state using a new method. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-64c4jvdl5feg2zhimxvokqka@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/util/evlist.c9
-rw-r--r--tools/perf/util/evlist.h2
2 files changed, 11 insertions, 0 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 6b58a47..8366511 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -297,6 +297,8 @@ void perf_evlist__disable(struct perf_evlist *evlist)
PERF_EVENT_IOC_DISABLE, 0);
}
}
+
+ evlist->enabled = false;
}
void perf_evlist__enable(struct perf_evlist *evlist)
@@ -316,6 +318,13 @@ void perf_evlist__enable(struct perf_evlist *evlist)
PERF_EVENT_IOC_ENABLE, 0);
}
}
+
+ evlist->enabled = true;
+}
+
+void perf_evlist__toggle_enable(struct perf_evlist *evlist)
+{
+ (evlist->enabled ? perf_evlist__disable : perf_evlist__enable)(evlist);
}
int perf_evlist__disable_event(struct perf_evlist *evlist,
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 955bf31..a8489b9 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -41,6 +41,7 @@ struct perf_evlist {
int nr_groups;
int nr_mmaps;
bool overwrite;
+ bool enabled;
size_t mmap_len;
int id_pos;
int is_pos;
@@ -139,6 +140,7 @@ void perf_evlist__munmap(struct perf_evlist *evlist);
void perf_evlist__disable(struct perf_evlist *evlist);
void perf_evlist__enable(struct perf_evlist *evlist);
+void perf_evlist__toggle_enable(struct perf_evlist *evlist);
int perf_evlist__disable_event(struct perf_evlist *evlist,
struct perf_evsel *evsel);