Commit 8ab705b5 authored by Alexey Budankov's avatar Alexey Budankov Committed by Arnaldo Carvalho de Melo
Browse files

perf evlist: Introduce control file descriptors 



Define and initialize control file descriptors.

Signed-off-by: default avatarAlexey Budankov <alexey.budankov@linux.intel.com>
Acked-by: default avatarJiri Olsa <jolsa@redhat.com>
Acked-by: default avatarNamhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/0dd4f544-2610-96d6-1bdb-6582bdc3dc2c@linux.intel.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent d3da1f09

tools/perf/util/evlist.c

+3 −0
Original line number Diff line number Diff line
@@ -63,6 +63,9 @@ void evlist__init(struct evlist *evlist, struct perf_cpu_map *cpus, 
	perf_evlist__set_maps(&evlist->core, cpus, threads);

	evlist->workload.pid = -1;

	evlist->bkw_mmap_state = BKW_MMAP_NOTREADY;

	evlist->ctl_fd.fd = -1;

	evlist->ctl_fd.ack = -1;

	evlist->ctl_fd.pos = -1;

}



struct evlist *evlist__new(void)

tools/perf/util/evlist.h

+5 −0
Original line number Diff line number Diff line
@@ -74,6 +74,11 @@ struct evlist { 
		pthread_t		th;

		volatile int		done;

	} thread;

	struct {

		int	fd;	/* control file descriptor */

		int	ack;	/* ack file descriptor for control commands */

		int	pos;	/* index at evlist core object to check signals */

	} ctl_fd;

};



struct evsel_str_handler {