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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>
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@ -297,6 +297,8 @@ void perf_evlist__disable(struct perf_evlist *evlist)
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PERF_EVENT_IOC_DISABLE, 0);
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}
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}
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evlist->enabled = false;
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}
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void perf_evlist__enable(struct perf_evlist *evlist)
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@ -316,6 +318,13 @@ void perf_evlist__enable(struct perf_evlist *evlist)
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PERF_EVENT_IOC_ENABLE, 0);
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}
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}
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evlist->enabled = true;
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}
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void perf_evlist__toggle_enable(struct perf_evlist *evlist)
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{
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(evlist->enabled ? perf_evlist__disable : perf_evlist__enable)(evlist);
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}
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int perf_evlist__disable_event(struct perf_evlist *evlist,
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@ -41,6 +41,7 @@ struct perf_evlist {
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int nr_groups;
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int nr_mmaps;
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bool overwrite;
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bool enabled;
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size_t mmap_len;
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int id_pos;
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int is_pos;
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@ -139,6 +140,7 @@ void perf_evlist__munmap(struct perf_evlist *evlist);
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void perf_evlist__disable(struct perf_evlist *evlist);
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void perf_evlist__enable(struct perf_evlist *evlist);
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void perf_evlist__toggle_enable(struct perf_evlist *evlist);
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int perf_evlist__disable_event(struct perf_evlist *evlist,
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struct perf_evsel *evsel);
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