Messages in this thread Patch in this message | | | From | David Ahern <> | Subject | [PATCH 1/7] perf util: Add machine method to loop over threads and invoke handler | Date | Sat, 28 Sep 2013 13:12:58 -0600 |
| |
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 and
Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Stephane Eranian <eranian@google.com> --- tools/perf/util/machine.c | 23 +++++++++++++++++++++++ tools/perf/util/machine.h | 4 ++++ 2 files changed, 27 insertions(+)
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index 40083df..d5055be 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -1376,3 +1376,26 @@ 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 58a6be1..dc9c57e 100644 --- a/tools/perf/util/machine.h +++ b/tools/perf/util/machine.h @@ -165,4 +165,8 @@ 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 */ -- 1.7.10.1
| |