[dpdk-dev] [PATCH v2 4/7] app/test: introduce dynamic commands list

[David Marchand <david.marchand@6wind.com>]

This patch adds a way to dynamically add a test without modifying commands.c.
Move all current tests in a builtin_commands[] list, next patch will convert
them to this new system.

Signed-off-by: David Marchand <david.marchand@6wind.com>
---
 app/test/commands.c |  118 ++++++++++++++++++++++++++++++++++-----------------
 app/test/test.c     |    3 ++
 app/test/test.h     |   21 +++++++++
 3 files changed, 103 insertions(+), 39 deletions(-)

diff --git a/app/test/commands.c b/app/test/commands.c
index 4a0cc05..a1ffd43 100644
--- a/app/test/commands.c
+++ b/app/test/commands.c
@@ -78,6 +78,15 @@
 
 /****************/
 
+static struct test_commands_list commands_list =
+	TAILQ_HEAD_INITIALIZER(commands_list);
+
+void
+add_test_command(struct test_command *t)
+{
+	TAILQ_INSERT_TAIL(&commands_list, t, next);
+}
+
 struct cmd_autotest_result {
 	cmdline_fixed_string_t autotest;
 };
@@ -86,9 +95,15 @@ static void cmd_autotest_parsed(void *parsed_result,
 				__attribute__((unused)) struct cmdline *cl,
 				__attribute__((unused)) void *data)
 {
+	struct test_command *t;
 	struct cmd_autotest_result *res = parsed_result;
 	int ret = 0;
 
+	TAILQ_FOREACH(t, &commands_list, next) {
+		if (!strcmp(res->autotest, t->command))
+			ret = t->callback();
+	}
+
 	if (!strcmp(res->autotest, "version_autotest"))
 		ret = test_version();
 	if (!strcmp(res->autotest, "eal_fs_autotest"))
@@ -214,45 +229,7 @@ static void cmd_autotest_parsed(void *parsed_result,
 
 cmdline_parse_token_string_t cmd_autotest_autotest =
 	TOKEN_STRING_INITIALIZER(struct cmd_autotest_result, autotest,
-			"pci_autotest#memory_autotest#"
-			"per_lcore_autotest#spinlock_autotest#"
-			"rwlock_autotest#atomic_autotest#"
-			"byteorder_autotest#prefetch_autotest#"
-			"cycles_autotest#logs_autotest#"
-			"memzone_autotest#ring_autotest#"
-			"mempool_autotest#mbuf_autotest#"
-			"timer_autotest#malloc_autotest#"
-			"memcpy_autotest#hash_autotest#"
-			"lpm_autotest#debug_autotest#"
-			"lpm6_autotest#"
-			"errno_autotest#tailq_autotest#"
-			"string_autotest#multiprocess_autotest#"
-			"cpuflags_autotest#eal_flags_autotest#"
-			"alarm_autotest#interrupt_autotest#"
-			"version_autotest#eal_fs_autotest#"
-			"cmdline_autotest#func_reentrancy_autotest#"
-#ifdef RTE_LIBRTE_PMD_BOND
-			"link_bonding_autotest#"
-#endif
-			"mempool_perf_autotest#hash_perf_autotest#"
-			"memcpy_perf_autotest#ring_perf_autotest#"
-			"red_autotest#meter_autotest#sched_autotest#"
-			"memcpy_perf_autotest#kni_autotest#"
-			"ivshmem_autotest#"
-			"devargs_autotest#table_autotest#"
-#ifdef RTE_LIBRTE_ACL
-			"acl_autotest#"
-#endif
-			"power_autotest#"
-			"timer_perf_autotest#"
-#ifdef RTE_LIBRTE_PMD_RING
-			"ring_pmd_autotest#"
-#endif
-#ifdef RTE_LIBRTE_KVARGS
-			"kvargs_autotest#"
-#endif
-			"common_autotest#"
-			"distributor_autotest#distributor_perf_autotest");
+				 "");
 
 cmdline_parse_inst_t cmd_autotest = {
 	.f = cmd_autotest_parsed,  /* function to call */
@@ -460,3 +437,66 @@ cmdline_parse_ctx_t main_ctx[] = {
 	NULL,
 };
 
+int commands_init(void)
+{
+	struct test_command *t;
+	char builtin_commands[] =
+			"pci_autotest#memory_autotest#"
+			"per_lcore_autotest#spinlock_autotest#"
+			"rwlock_autotest#atomic_autotest#"
+			"byteorder_autotest#prefetch_autotest#"
+			"cycles_autotest#logs_autotest#"
+			"memzone_autotest#ring_autotest#"
+			"mempool_autotest#mbuf_autotest#"
+			"timer_autotest#malloc_autotest#"
+			"memcpy_autotest#hash_autotest#"
+			"lpm_autotest#debug_autotest#"
+			"lpm6_autotest#"
+			"errno_autotest#tailq_autotest#"
+			"string_autotest#multiprocess_autotest#"
+			"cpuflags_autotest#eal_flags_autotest#"
+			"alarm_autotest#interrupt_autotest#"
+			"version_autotest#eal_fs_autotest#"
+			"cmdline_autotest#func_reentrancy_autotest#"
+#ifdef RTE_LIBRTE_PMD_BOND
+			"link_bonding_autotest#"
+#endif
+			"mempool_perf_autotest#hash_perf_autotest#"
+			"memcpy_perf_autotest#ring_perf_autotest#"
+			"red_autotest#meter_autotest#sched_autotest#"
+			"memcpy_perf_autotest#kni_autotest#"
+			"ivshmem_autotest#"
+			"devargs_autotest#table_autotest#"
+#ifdef RTE_LIBRTE_ACL
+			"acl_autotest#"
+#endif
+			"power_autotest#"
+			"timer_perf_autotest#"
+#ifdef RTE_LIBRTE_PMD_RING
+			"ring_pmd_autotest#"
+#endif
+#ifdef RTE_LIBRTE_KVARGS
+			"kvargs_autotest#"
+#endif
+			"common_autotest#"
+			"distributor_autotest#distributor_perf_autotest";
+	char *commands, *ptr;
+	int commands_len = strlen(builtin_commands) + 1;
+
+	TAILQ_FOREACH(t, &commands_list, next) {
+		commands_len += strlen(t->command) + 1;
+	}
+
+	commands = malloc(commands_len);
+	if (!commands)
+		return -1;
+
+	ptr = commands;
+	TAILQ_FOREACH(t, &commands_list, next) {
+		ptr += sprintf(ptr, "%s#", t->command);
+	}
+	ptr += sprintf(ptr, "%s", builtin_commands);
+
+	cmd_autotest_autotest.string_data.str = commands;
+	return 0;
+}
diff --git a/app/test/test.c b/app/test/test.c
index 589a168..a33b2b5 100644
--- a/app/test/test.c
+++ b/app/test/test.c
@@ -126,6 +126,9 @@ main(int argc, char **argv)
 	rte_timer_subsystem_init();
 #endif
 
+	if (commands_init() < 0)
+		return -1;
+
 	argv += ret;
 
 	prgname = argv[0];
diff --git a/app/test/test.h b/app/test/test.h
index 181c38e..bba0ec5 100644
--- a/app/test/test.h
+++ b/app/test/test.h
@@ -34,6 +34,8 @@
 #ifndef _TEST_H_
 #define _TEST_H_
 
+#include <sys/queue.h>
+
 #define TEST_ASSERT(cond, msg, ...) do {						\
 		if (!(cond)) {											\
 			printf("TestCase %s() line %d failed: "			\
@@ -125,6 +127,8 @@ int unit_test_suite_runner(struct unit_test_suite *suite);
 
 extern const char *prgname;
 
+int commands_init(void);
+
 int main(int argc, char **argv);
 
 int test_pci(void);
@@ -183,4 +187,21 @@ int test_link_bonding(void);
 
 int test_pci_run;
 
+typedef int (test_callback)(void);
+TAILQ_HEAD(test_commands_list, test_command);
+struct test_command {
+	TAILQ_ENTRY(test_command) next;
+	const char *command;
+	test_callback *callback;
+};
+
+void add_test_command(struct test_command *t);
+
+#define REGISTER_TEST_COMMAND(t) \
+static void testfn_##t(void);\
+void __attribute__((constructor, used)) testfn_##t(void)\
+{\
+	add_test_command(&t);\
+}
+
 #endif
-- 
1.7.10.4