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Subject[PATCH 087/161] perf evlist: Introduce perf_evlist__new_default function
Date
From: Jiri Olsa <jolsa@redhat.com>

Adding new common function to create evlist with default event. It
spares some code lines in automated tests.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1378031796-17892-4-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/tests/perf-record.c | 12 +-----------
tools/perf/tests/task-exit.c | 14 ++------------
tools/perf/util/evlist.c | 12 ++++++++++++
tools/perf/util/evlist.h | 1 +
4 files changed, 16 insertions(+), 23 deletions(-)

diff --git a/tools/perf/tests/perf-record.c b/tools/perf/tests/perf-record.c
index b8a7056519ac..82ac71550091 100644
--- a/tools/perf/tests/perf-record.c
+++ b/tools/perf/tests/perf-record.c
@@ -45,7 +45,7 @@ int test__PERF_RECORD(void)
};
cpu_set_t cpu_mask;
size_t cpu_mask_size = sizeof(cpu_mask);
- struct perf_evlist *evlist = perf_evlist__new();
+ struct perf_evlist *evlist = perf_evlist__new_default();
struct perf_evsel *evsel;
struct perf_sample sample;
const char *cmd = "sleep";
@@ -66,16 +66,6 @@ int test__PERF_RECORD(void)
}

/*
- * We need at least one evsel in the evlist, use the default
- * one: "cycles".
- */
- err = perf_evlist__add_default(evlist);
- if (err < 0) {
- pr_debug("Not enough memory to create evsel\n");
- goto out_delete_evlist;
- }
-
- /*
* Create maps of threads and cpus to monitor. In this case
* we start with all threads and cpus (-1, -1) but then in
* perf_evlist__prepare_workload we'll fill in the only thread
diff --git a/tools/perf/tests/task-exit.c b/tools/perf/tests/task-exit.c
index 28fe5894b061..b07f8a14e15d 100644
--- a/tools/perf/tests/task-exit.c
+++ b/tools/perf/tests/task-exit.c
@@ -37,20 +37,11 @@ int test__task_exit(void)
signal(SIGCHLD, sig_handler);
signal(SIGUSR1, sig_handler);

- evlist = perf_evlist__new();
+ evlist = perf_evlist__new_default();
if (evlist == NULL) {
- pr_debug("perf_evlist__new\n");
+ pr_debug("perf_evlist__new_default\n");
return -1;
}
- /*
- * We need at least one evsel in the evlist, use the default
- * one: "cycles".
- */
- err = perf_evlist__add_default(evlist);
- if (err < 0) {
- pr_debug("Not enough memory to create evsel\n");
- goto out_free_evlist;
- }

/*
* Create maps of threads and cpus to monitor. In this case
@@ -117,7 +108,6 @@ out_close_evlist:
perf_evlist__close(evlist);
out_delete_maps:
perf_evlist__delete_maps(evlist);
-out_free_evlist:
perf_evlist__delete(evlist);
return err;
}
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index d21ab0812926..f0d71a9d49f4 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -50,6 +50,18 @@ struct perf_evlist *perf_evlist__new(void)
return evlist;
}

+struct perf_evlist *perf_evlist__new_default(void)
+{
+ struct perf_evlist *evlist = perf_evlist__new();
+
+ if (evlist && perf_evlist__add_default(evlist)) {
+ perf_evlist__delete(evlist);
+ evlist = NULL;
+ }
+
+ return evlist;
+}
+
/**
* perf_evlist__set_id_pos - set the positions of event ids.
* @evlist: selected event list
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 4edb5008fd36..871b55ab5dee 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -53,6 +53,7 @@ struct perf_evsel_str_handler {
};

struct perf_evlist *perf_evlist__new(void);
+struct perf_evlist *perf_evlist__new_default(void);
void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus,
struct thread_map *threads);
void perf_evlist__exit(struct perf_evlist *evlist);
--
1.8.1.4


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