From b2fa1b50edaea43007d692d24391c6f3aa4d15ca Mon Sep 17 00:00:00 2001
From: Damien George <damien.p.george@gmail.com>
Date: Thu, 31 May 2018 23:11:08 +1000
Subject: [PATCH] ports: Call gc_sweep_all() when doing a soft reset.

This calls finalisers of things like files and sockets to cleanly close
them.
---
 ports/esp32/main.c   | 2 ++
 ports/esp8266/main.c | 1 +
 ports/stm32/main.c   | 2 ++
 ports/unix/main.c    | 4 ++++
 4 files changed, 9 insertions(+)

diff --git a/ports/esp32/main.c b/ports/esp32/main.c
index e7290c7eb8..acbbfdccce 100644
--- a/ports/esp32/main.c
+++ b/ports/esp32/main.c
@@ -116,6 +116,8 @@ soft_reset:
     mp_thread_deinit();
     #endif
 
+    gc_sweep_all();
+
     mp_hal_stdout_tx_str("PYB: soft reboot\r\n");
 
     // deinitialise peripherals
diff --git a/ports/esp8266/main.c b/ports/esp8266/main.c
index 975262fd16..7e5034b04a 100644
--- a/ports/esp8266/main.c
+++ b/ports/esp8266/main.c
@@ -88,6 +88,7 @@ STATIC void mp_reset(void) {
 }
 
 void soft_reset(void) {
+    gc_sweep_all();
     mp_hal_stdout_tx_str("PYB: soft reboot\r\n");
     mp_hal_delay_us(10000); // allow UART to flush output
     mp_reset();
diff --git a/ports/stm32/main.c b/ports/stm32/main.c
index 19c77453f9..c018d2de2a 100644
--- a/ports/stm32/main.c
+++ b/ports/stm32/main.c
@@ -756,5 +756,7 @@ soft_reset_exit:
     pyb_thread_deinit();
     #endif
 
+    gc_sweep_all();
+
     goto soft_reset;
 }
diff --git a/ports/unix/main.c b/ports/unix/main.c
index b68fe92797..1cf237a2b2 100644
--- a/ports/unix/main.c
+++ b/ports/unix/main.c
@@ -647,6 +647,10 @@ MP_NOINLINE int main_(int argc, char **argv) {
     }
     #endif
 
+    #if defined(MICROPY_UNIX_COVERAGE)
+    gc_sweep_all();
+    #endif
+
     mp_deinit();
 
 #if MICROPY_ENABLE_GC && !defined(NDEBUG)