[PATCH 1/3] android/tester: Init profiles in separate thread

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This is needed to not block mainloop while initializing stack.
In some cases, bluetooth->init blocks mainloop and bluetoothd
cannot properly initialize controller, because HCI frames are
not serviced in hciemu.
Because pthread_join() is blocking, it is added to mainloop
from thread right before pthread_exit() is called. Therefore
this time is extremely short.
---
 android/tester-main.c | 230 +++++++++++++++++++++++++++-----------------------
 android/tester-main.h |   2 +
 2 files changed, 127 insertions(+), 105 deletions(-)

diff --git a/android/tester-main.c b/android/tester-main.c
index f5f46fb..ce13bf7 100644
--- a/android/tester-main.c
+++ b/android/tester-main.c
@@ -15,8 +15,10 @@
  *
  */
 #include <stdbool.h>
+#include <pthread.h>
 
 #include "emulator/bthost.h"
+#include "src/shared/util.h"
 #include "tester-main.h"
 
 #include "monitor/bt.h"
@@ -1332,237 +1334,255 @@ static bool setup_base(struct test_data *data)
 	return true;
 }
 
-static void setup(const void *test_data)
+static int init_bluetooth(void)
 {
 	struct test_data *data = tester_get_data();
-	bt_status_t status;
-
-	if (!setup_base(data)) {
-		tester_setup_failed();
-		return;
-	}
-
-	status = data->if_bluetooth->init(&bt_callbacks);
-	if (status != BT_STATUS_SUCCESS) {
-		data->if_bluetooth = NULL;
-		tester_setup_failed();
-		return;
-	}
 
-	tester_setup_complete();
+	return data->if_bluetooth->init(&bt_callbacks);
 }
 
-static void setup_socket(const void *test_data)
+static int init_socket(void)
 {
 	struct test_data *data = tester_get_data();
-	bt_status_t status;
 	const void *sock;
-
-	if (!setup_base(data)) {
-		tester_setup_failed();
-		return;
-	}
+	int status;
 
 	status = data->if_bluetooth->init(&bt_callbacks);
 	if (status != BT_STATUS_SUCCESS) {
 		data->if_bluetooth = NULL;
-		tester_setup_failed();
-		return;
+		return status;
 	}
 
 	sock = data->if_bluetooth->get_profile_interface(BT_PROFILE_SOCKETS_ID);
-	if (!sock) {
-		tester_setup_failed();
-		return;
-	}
+	if (!sock)
+		return BT_STATUS_FAIL;
 
 	data->if_sock = sock;
 
-	tester_setup_complete();
+	return BT_STATUS_SUCCESS;
 }
 
-static void setup_hidhost(const void *test_data)
+static int init_hidhost(void)
 {
 	struct test_data *data = tester_get_data();
 	bt_status_t status;
 	const void *hid;
 
-	if (!setup_base(data)) {
-		tester_setup_failed();
-		return;
-	}
-
 	status = data->if_bluetooth->init(&bt_callbacks);
 	if (status != BT_STATUS_SUCCESS) {
 		data->if_bluetooth = NULL;
 		tester_setup_failed();
-		return;
+		return status;
 	}
 
 	hid = data->if_bluetooth->get_profile_interface(BT_PROFILE_HIDHOST_ID);
 	if (!hid) {
 		tester_setup_failed();
-		return;
+		return BT_STATUS_FAIL;
 	}
 
 	data->if_hid = hid;
 
 	status = data->if_hid->init(&bthh_callbacks);
-	if (status != BT_STATUS_SUCCESS) {
+	if (status != BT_STATUS_SUCCESS)
 		data->if_hid = NULL;
-		tester_setup_failed();
-		return;
-	}
 
-	tester_setup_complete();
+	return status;
 }
 
-static void setup_pan(const void *test_data)
+static int init_pan(void)
 {
 	struct test_data *data = tester_get_data();
 	bt_status_t status;
 	const void *pan;
 
-	if (!setup_base(data)) {
-		tester_setup_failed();
-		return;
-	}
-
 	status = data->if_bluetooth->init(&bt_callbacks);
 	if (status != BT_STATUS_SUCCESS) {
 		data->if_bluetooth = NULL;
-		tester_setup_failed();
-		return;
+		return status;
 	}
 
 	pan = data->if_bluetooth->get_profile_interface(BT_PROFILE_PAN_ID);
 	if (!pan) {
-		tester_setup_failed();
-		return;
+		return BT_STATUS_FAIL;
 	}
 
 	data->if_pan = pan;
 
 	status = data->if_pan->init(&btpan_callbacks);
-	if (status != BT_STATUS_SUCCESS) {
+	if (status != BT_STATUS_SUCCESS)
 		data->if_pan = NULL;
-		tester_setup_failed();
-		return;
-	}
 
-	tester_setup_complete();
+	return status;
 }
 
-static void setup_hdp(const void *test_data)
+static int init_hdp(void)
 {
 	struct test_data *data = tester_get_data();
 	bt_status_t status;
 	const void *hdp;
 
-	if (!setup_base(data)) {
-		tester_setup_failed();
-		return;
-	}
-
 	status = data->if_bluetooth->init(&bt_callbacks);
 	if (status != BT_STATUS_SUCCESS) {
 		data->if_bluetooth = NULL;
-		tester_setup_failed();
-		return;
+		return status;
 	}
 
 	hdp = data->if_bluetooth->get_profile_interface(BT_PROFILE_HEALTH_ID);
-	if (!hdp) {
-		tester_setup_failed();
-		return;
-	}
+	if (!hdp)
+		return BT_STATUS_FAIL;
 
 	data->if_hdp = hdp;
 
 	status = data->if_hdp->init(&bthl_callbacks);
-	if (status != BT_STATUS_SUCCESS) {
+	if (status != BT_STATUS_SUCCESS)
 		data->if_hdp = NULL;
-		tester_setup_failed();
-		return;
-	}
 
-	tester_setup_complete();
+	return status;
 }
 
-static void setup_a2dp(const void *test_data)
+static int init_a2dp(void)
 {
 	struct test_data *data = tester_get_data();
 	const bt_interface_t *if_bt;
 	bt_status_t status;
 	const void *a2dp;
 
-	if (!setup_base(data)) {
-		tester_setup_failed();
-		return;
-	}
-
 	if_bt = data->if_bluetooth;
 
 	status = if_bt->init(&bt_callbacks);
 	if (status != BT_STATUS_SUCCESS) {
 		data->if_bluetooth = NULL;
-		tester_setup_failed();
-		return;
+		return status;
 	}
 
 	a2dp = if_bt->get_profile_interface(BT_PROFILE_ADVANCED_AUDIO_ID);
-	if (!a2dp) {
-		tester_setup_failed();
-		return;
-	}
+	if (!a2dp)
+		return  BT_STATUS_FAIL;
 
 	data->if_a2dp = a2dp;
 
 	status = data->if_a2dp->init(&bta2dp_callbacks);
-	if (status != BT_STATUS_SUCCESS) {
+	if (status != BT_STATUS_SUCCESS)
 		data->if_a2dp = NULL;
-		tester_setup_failed();
-		return;
-	}
 
-	tester_setup_complete();
+	return status;
 }
 
-static void setup_gatt(const void *test_data)
+static int init_gatt(void)
 {
 	struct test_data *data = tester_get_data();
 	bt_status_t status;
 	const void *gatt;
 
-	if (!setup_base(data)) {
-		tester_setup_failed();
-		return;
-	}
-
 	status = data->if_bluetooth->init(&bt_callbacks);
 	if (status != BT_STATUS_SUCCESS) {
 		data->if_bluetooth = NULL;
-		tester_setup_failed();
-		return;
+		return status;
 	}
 
 	gatt = data->if_bluetooth->get_profile_interface(BT_PROFILE_GATT_ID);
-	if (!gatt) {
-		tester_setup_failed();
-		return;
-	}
+	if (!gatt)
+		return BT_STATUS_FAIL;
 
 	data->if_gatt = gatt;
 
 	status = data->if_gatt->init(&btgatt_callbacks);
-	if (status != BT_STATUS_SUCCESS) {
+	if (status != BT_STATUS_SUCCESS)
 		data->if_gatt = NULL;
 
+	return status;
+}
+
+static gboolean join_init_thread(gpointer user_data)
+{
+	struct test_data *data = tester_get_data();
+	int status;
+
+	/* Note that pthread_join is blocking mainloop,
+	 * therefore thread we want to join must
+	 * exit imediatelly. This is done in init_thread()*/
+	status = pthread_join(data->thread, NULL);
+	if (status != 0)
+		tester_warn("Failed to join init thread, status %d", status);
+
+	if (PTR_TO_INT(user_data) == BT_STATUS_SUCCESS)
+		tester_setup_complete();
+	else
+		tester_setup_failed();
+
+	return FALSE;
+}
+
+static void *init_thread(void *user_data)
+{
+	int (*setup_func)(void) = user_data;
+	int status;
+
+	status = setup_func();
+
+	g_idle_add(join_init_thread, INT_TO_PTR(status));
+
+	pthread_exit(NULL);
+}
+
+static bool start_init_thread(int (*init)(void))
+{
+	struct test_data *data = tester_get_data();
+
+	if (pthread_create(&data->thread, NULL, init_thread, init) != 0)
+		return false;
+
+	return true;
+}
+
+static void setup_generic(int (*setup)(void))
+{
+	struct test_data *data = tester_get_data();
+
+	if (!setup_base(data)) {
 		tester_setup_failed();
 		return;
 	}
 
-	tester_setup_complete();
+	if (!start_init_thread(setup))
+		tester_setup_failed();
+}
+
+static void setup(const void *test_data)
+{
+	setup_generic(init_bluetooth);
+}
+
+static void setup_socket(const void *test_data)
+{
+
+	setup_generic(init_socket);
+}
+
+static void setup_hidhost(const void *test_data)
+{
+	setup_generic(init_hidhost);
+}
+
+static void setup_pan(const void *test_data)
+{
+	setup_generic(init_pan);
+}
+
+static void setup_hdp(const void *test_data)
+{
+	setup_generic(init_hdp);
+}
+
+static void setup_a2dp(const void *test_data)
+{
+	setup_generic(init_a2dp);
+}
+
+static void setup_gatt(const void *test_data)
+{
+	setup_generic(init_gatt);
 }
 
 static void teardown(const void *test_data)
diff --git a/android/tester-main.h b/android/tester-main.h
index 46aacce..f90cf86 100644
--- a/android/tester-main.h
+++ b/android/tester-main.h
@@ -331,6 +331,8 @@ struct test_data {
 	pid_t bluetoothd_pid;
 
 	struct queue *pdus;
+
+	pthread_t thread;
 };
 
 /*
-- 
1.9.0

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