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| author |   David Ahern <dsahern@gmail.com> | 2013-09-28 13:12:58 -0600 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-10-11 12:17:51 -0300 |
| commit | 35feee19f9fda7447f51073b5be3f6d082b508f5 (patch) | |
| tree | 53a42e1713716a05659a7f4866b3141f10194927 | |
| parent | perf trace: Add record option (diff) | |
| download | linux-dev-35feee19f9fda7447f51073b5be3f6d082b508f5.tar.xz linux-dev-35feee19f9fda7447f51073b5be3f6d082b508f5.zip | |
perf machine: Add method to loop over threads and invoke handler
Loop over all threads within a machine - including threads moved to the
dead threads list -- and invoked a function.
This allows commands to run some specific function on each thread (eg.,
dump statistics) yet hides how the threads are maintained within the
machine.
Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1380395584-9025-2-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/util/machine.c | 23 | ||||
| -rw-r--r-- | tools/perf/util/machine.h | 4 |
2 files changed, 27 insertions, 0 deletions
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index fc14f9bf82c8..901397ae82be 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -1393,3 +1393,26 @@ int machine__resolve_callchain(struct machine *machine, sample); } + +int machine__for_each_thread(struct machine *machine, + int (*fn)(struct thread *thread, void *p), + void *priv) +{ + struct rb_node *nd; + struct thread *thread; + int rc = 0; + + for (nd = rb_first(&machine->threads); nd; nd = rb_next(nd)) { + thread = rb_entry(nd, struct thread, rb_node); + rc = fn(thread, priv); + if (rc != 0) + return rc; + } + + list_for_each_entry(thread, &machine->dead_threads, node) { + rc = fn(thread, priv); + if (rc != 0) + return rc; + } + return rc; +} diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h index 5150d5e1db67..d44c09bdc45e 100644 --- a/tools/perf/util/machine.h +++ b/tools/perf/util/machine.h @@ -166,4 +166,8 @@ void machines__destroy_kernel_maps(struct machines *machines); size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp); +int machine__for_each_thread(struct machine *machine, + int (*fn)(struct thread *thread, void *p), + void *priv); + #endif /* __PERF_MACHINE_H */ |