[FL-872] Furi, API-HAL, App-Loader cleanup and improvements (#334)

* Furi: replace obsolete furiac_exit with osThreadExit, drop obsolete apis and test. Rename systemd to flipper and move to separate file, cleanup. ApiHal: Rename timebase to os and move freertos hooks there, move insomnia api to power module.
* Furi: new thread helper
* Furi: cleanup thread documentation
* Flipper, AppLoader: update to use FuriThread. Update tasks signatures to match FuriThreadCallback signature.
* F4: rename API_HAL_TIMEBASE_DEBUG to API_HAL_OS_DEBUG
* Applications: rename FuriApplication to FlipperApplication, use FuriThreadCallback signature for apps.
* C++ app template sample, new exit method

applications/examples/blink.c

@@ -12,7 +12,7 @@ void rgb_set(
     gpio_write(led_b, !b);
 }
 
-void application_blink(void* p) {
+int32_t application_blink(void* p) {
     // TODO open record
     const GpioPin* led_r_record = &led_gpio[0];
     const GpioPin* led_g_record = &led_gpio[1];
@@ -41,4 +41,6 @@ void application_blink(void* p) {
         rgb_set(0, 0, 0, led_r_record, led_g_record, led_b_record);
         delay(500);
     }
+
+    return 0;
 }

applications/examples/input_dump.c

@@ -13,7 +13,7 @@ static void event_cb(const void* value, void* ctx) {
     printf("event: %02x %s\r\n", event->key, event->type ? "pressed" : "released");
 }
 
-void application_input_dump(void* p) {
+int32_t application_input_dump(void* p) {
     // open record
     PubSub* event_record = furi_record_open("input_events");
     subscribe_pubsub(event_record, event_cb, NULL);
@@ -23,4 +23,6 @@ void application_input_dump(void* p) {
     for(;;) {
         delay(100);
     }
+
+    return 0;
 }

applications/examples/u8g2_example.c

@@ -1,7 +1,7 @@
 #include "u8g2/u8g2.h"
 #include <furi.h>
 
-void u8g2_example(void* p) {
+int32_t u8g2_example(void* p) {
     // open record
     u8g2_t* fb = furi_record_open("u8g2_fb");
     u8g2_SetFont(fb, u8g2_font_6x10_mf);
@@ -10,5 +10,5 @@ void u8g2_example(void* p) {
     u8g2_DrawStr(fb, 2, 12, "hello world!");
     furi_record_close("u8g2_fb");
 
-    furiac_exit(NULL);
+    return 0;
 }

applications/examples/u8g2_qrcode.c

@@ -13,7 +13,7 @@ void u8g2_DrawPixelSize(u8g2_t* u8g2, uint8_t x, uint8_t y, uint8_t size) {
     }
 }
 
-void u8g2_qrcode(void* p) {
+int32_t u8g2_qrcode(void* p) {
     // open record
     FuriRecordSubscriber* fb_record =
         furi_open_deprecated("u8g2_fb", false, false, NULL, NULL, NULL);
@@ -38,7 +38,7 @@ void u8g2_qrcode(void* p) {
 
     if(fb_record == NULL) {
         printf("[view_port] cannot create fb record\r\n");
-        furiac_exit(NULL);
+        return 255;
     }
 
     u8g2_t* fb = furi_take(fb_record);
@@ -63,12 +63,14 @@ void u8g2_qrcode(void* p) {
                 }
             }
         } else {
-            furiac_exit(NULL);
+            return 255;
         }
 
         furi_commit(fb_record);
 
         delay(1);
     }
+
+    return 0;
 }
 */

applications/examples/uart_write.c

@@ -1,7 +1,7 @@
 #include <furi.h>
 #include <string.h>
 
-void application_uart_write(void* p) {
+int32_t application_uart_write(void* p) {
     // Red led for showing progress
     GpioPin led = {.pin = GPIO_PIN_8, .port = GPIOA};
     // TODO open record
@@ -29,4 +29,6 @@ void application_uart_write(void* p) {
         // delay with overall perion of 1s
         delay(950);
     }
+
+    return 0;
 }

applications/examples/vibro.c

@@ -21,7 +21,7 @@ static void button_handler(const void* value, void* _ctx) {
     }
 }
 
-void application_vibro(void* p) {
+int32_t application_vibro(void* p) {
     Ctx ctx = {.led = (GpioPin*)&led_gpio[1], .vibro = (GpioPin*)&vibro_gpio};
 
     gpio_init(ctx.led, GpioModeOutputOpenDrain);
@@ -37,4 +37,6 @@ void application_vibro(void* p) {
     while(1) {
         osDelay(osWaitForever);
     }
+
+    return 0;
 }