From 4e4dc8e16ebdcaa1e8a2fe8fdc529bc8a9565c42 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mario=20H=C3=BCttel?= <mario.huettel@gmx.net>
Date: Mon, 20 Apr 2020 01:05:48 +0200
Subject: [PATCH] Add dynamic memory info to meminfo command

---
 stm-firmware/shell.c | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/stm-firmware/shell.c b/stm-firmware/shell.c
index 548fdd1..b4cd5da 100644
--- a/stm-firmware/shell.c
+++ b/stm-firmware/shell.c
@@ -24,6 +24,7 @@
 #include <reflow-controller/adc-meas.h>
 #include <reflow-controller/digio.h>
 #include <stdlib.h>
+#include <malloc.h>
 #include <helper-macros/helper-macros.h>
 #include <reflow-controller/systick.h>
 #include <stm-periph/unique-id.h>
@@ -200,12 +201,13 @@ static shellmatta_retCode_t shell_cmd_cal(const shellmatta_handle_t   handle,
 	return SHELLMATTA_OK;
 }
 
-static shellmatta_retCode_t shell_get_sp(const shellmatta_handle_t   handle,
+static shellmatta_retCode_t shell_meminfo(const shellmatta_handle_t   handle,
 					 const char                  *arguments,
 					 uint32_t length)
 {
 	(void)arguments;
 	(void)length;
+	struct mallinfo mi;
 
 	shellmatta_printf(handle,
 			  "Stack pointer: %p\r\n"
@@ -214,6 +216,15 @@ static shellmatta_retCode_t shell_get_sp(const shellmatta_handle_t   handle,
 			  read_stack_pointer(),
 			  stack_check_get_usage(),
 			  stack_check_get_free());
+
+	mi = mallinfo();
+	shellmatta_printf(handle, "\r\nDynamic Memory Management\r\n");
+	shellmatta_printf(handle, "Allocated bytes: %d\r\n", mi.arena, mi.arena);
+	shellmatta_printf(handle, "Number of free chunks: %d\r\n", mi.ordblks);
+	shellmatta_printf(handle, "Top-most, releasable space: %d\r\n", mi.keepcost);
+	shellmatta_printf(handle, "Total free space: %d\r\n", mi.fordblks);
+	shellmatta_printf(handle, "Total allocated space: %d\r\n", mi.uordblks);
+
 	return SHELLMATTA_OK;
 }
 
@@ -352,11 +363,11 @@ static shellmatta_cmd_t cmd[10] = {
 		.next = &cmd[8],
 	},
 	{
-		.cmd = "get-stack-pointer",
-		.cmdAlias = "sp",
-		.helpText = "Get the stack pointer",
+		.cmd = "meminfo",
+		.cmdAlias = NULL,
+		.helpText = "Get information about memory usage",
 		.usageText = "",
-		.cmdFct = shell_get_sp,
+		.cmdFct = shell_meminfo,
 		.next = &cmd[9],
 	},
 	{