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Subject[tip:perf/core] perf tests: Introduce iterator function for tests
Commit-ID:  e8210cefb7e1ec0760a6fe581ad0727a2dcf8dd1
Gitweb: http://git.kernel.org/tip/e8210cefb7e1ec0760a6fe581ad0727a2dcf8dd1
Author: Matt Fleming <matt.fleming@intel.com>
AuthorDate: Sat, 5 Sep 2015 20:02:20 +0100
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 14 Sep 2015 12:50:18 -0300

perf tests: Introduce iterator function for tests

In preparation for introducing more arrays of tests, e.g. "arch tests"
(architecture-specific tests), abstract the code to iterate over the
list of tests into a helper function.

This way, code that uses a 'struct test' doesn't need to worry about how
the tests are grouped together and changes to the list of tests doesn't
require changes to the code using it.

Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Kanaka Juvva <kanaka.d.juvva@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Vikas Shivappa <vikas.shivappa@intel.com>
Cc: Vince Weaver <vince@deater.net>
Link: http://lkml.kernel.org/r/1441479742-15402-2-git-send-email-matt@codeblueprint.co.uk
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/tests/builtin-test.c | 32 ++++++++++++++++----------------
1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 98b0b24..d9bf51d 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -195,7 +195,7 @@ static struct test {
},
};

-static bool perf_test__matches(int curr, int argc, const char *argv[])
+static bool perf_test__matches(struct test *test, int curr, int argc, const char *argv[])
{
int i;

@@ -212,7 +212,7 @@ static bool perf_test__matches(int curr, int argc, const char *argv[])
continue;
}

- if (strstr(tests[curr].desc, argv[i]))
+ if (strstr(test->desc, argv[i]))
return true;
}

@@ -249,27 +249,28 @@ static int run_test(struct test *test)
return err;
}

+#define for_each_test(t) for (t = &tests[0]; t->func; t++)
+
static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
{
+ struct test *t;
int i = 0;
int width = 0;

- while (tests[i].func) {
- int len = strlen(tests[i].desc);
+ for_each_test(t) {
+ int len = strlen(t->desc);

if (width < len)
width = len;
- ++i;
}

- i = 0;
- while (tests[i].func) {
+ for_each_test(t) {
int curr = i++, err;

- if (!perf_test__matches(curr, argc, argv))
+ if (!perf_test__matches(t, curr, argc, argv))
continue;

- pr_info("%2d: %-*s:", i, width, tests[curr].desc);
+ pr_info("%2d: %-*s:", i, width, t->desc);

if (intlist__find(skiplist, i)) {
color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n");
@@ -277,8 +278,8 @@ static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
}

pr_debug("\n--- start ---\n");
- err = run_test(&tests[curr]);
- pr_debug("---- end ----\n%s:", tests[curr].desc);
+ err = run_test(t);
+ pr_debug("---- end ----\n%s:", t->desc);

switch (err) {
case TEST_OK:
@@ -299,15 +300,14 @@ static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)

static int perf_test__list(int argc, const char **argv)
{
+ struct test *t;
int i = 0;

- while (tests[i].func) {
- int curr = i++;
-
- if (argc > 1 && !strstr(tests[curr].desc, argv[1]))
+ for_each_test(t) {
+ if (argc > 1 && !strstr(t->desc, argv[1]))
continue;

- pr_info("%2d: %s\n", i, tests[curr].desc);
+ pr_info("%2d: %s\n", ++i, t->desc);
}

return 0;

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