From 03cb3c2145603c3c4795014739bf5f2974bae7c3 Mon Sep 17 00:00:00 2001
From: geeksville <kevinh@geeksville.com>
Date: Fri, 12 Jun 2020 16:37:03 -0700
Subject: [PATCH] basic stack debugging - we are okay for now

---
 src/WorkerThread.cpp | 12 ++++++++++--
 src/WorkerThread.h   |  2 ++
 src/main.cpp         |  9 +++++++++
 3 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/src/WorkerThread.cpp b/src/WorkerThread.cpp
index f84d83be..bf38a926 100644
--- a/src/WorkerThread.cpp
+++ b/src/WorkerThread.cpp
@@ -1,4 +1,5 @@
 #include "WorkerThread.h"
+#include "debug.h"
 #include <assert.h>
 
 void Thread::start(const char *name, size_t stackSize, uint32_t priority)
@@ -16,6 +17,15 @@ void WorkerThread::doRun()
 {
     while (!wantExit) {
         block();
+
+#ifdef DEBUG_STACK
+        static uint32_t lastPrint = 0;
+        if (millis() - lastPrint > 10 * 1000L) {
+            lastPrint = millis();
+            meshtastic::printThreadInfo("net");
+        }
+#endif
+
         loop();
     }
 }
@@ -28,8 +38,6 @@ void NotifiedWorkerThread::notify(uint32_t v, eNotifyAction action)
     xTaskNotify(taskHandle, v, action);
 }
 
-
-
 void NotifiedWorkerThread::block()
 {
     xTaskNotifyWait(0,                                          // don't clear notification on entry
diff --git a/src/WorkerThread.h b/src/WorkerThread.h
index 86ec08e1..655e316f 100644
--- a/src/WorkerThread.h
+++ b/src/WorkerThread.h
@@ -15,6 +15,8 @@ class Thread
 
     virtual ~Thread() { vTaskDelete(taskHandle); }
 
+    uint32_t getStackHighwaterMark() { return uxTaskGetStackHighWaterMark(taskHandle); }
+
   protected:
     /**
      * The method that will be called when start is called.
diff --git a/src/main.cpp b/src/main.cpp
index d7fb21bd..0c9fe5ca 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -33,6 +33,7 @@
 #include "power.h"
 // #include "rom/rtc.h"
 #include "DSRRouter.h"
+#include "debug.h"
 #include "main.h"
 #include "screen.h"
 #include "sleep.h"
@@ -314,6 +315,14 @@ void loop()
         showingBootScreen = false;
     }
 
+#ifdef DEBUG_STACK
+    static uint32_t lastPrint = 0;
+    if (millis() - lastPrint > 10 * 1000L) {
+        lastPrint = millis();
+        meshtastic::printThreadInfo("main");
+    }
+#endif
+
     // Update the screen last, after we've figured out what to show.
     screen.debug()->setNodeNumbersStatus(nodeDB.getNumOnlineNodes(), nodeDB.getNumNodes());
     screen.debug()->setChannelNameStatus(channelSettings.name);