From ef2c1793d943c43fa1ebe2aa632270aa308012a2 Mon Sep 17 00:00:00 2001
From: Tahsincan Köse
Date: Tue, 30 Nov 2021 20:46:24 +0300
Subject: Refresh in place capability.

---
 README.md            |  2 +-
 makefile             |  2 +-
 src/zenmonitor-cli.c | 29 +++++++++++++++++++++++++----
 3 files changed, 27 insertions(+), 6 deletions(-)

diff --git a/README.md b/README.md
index 7e7d82a..9c33365 100644
--- a/README.md
+++ b/README.md
@@ -55,7 +55,7 @@ Then:
 ```sh
 sudo modprobe msr
 sudo bash -c 'echo "msr" > /etc/modules-load.d/msr.conf'
-sudo apt install build-essential libgtk-3-dev git
+sudo apt install build-essential libgtk-3-dev libncurses5-dev git
 cd ~
 git clone https://github.com/Ta180m/zenmonitor3
 cd zenmonitor3
diff --git a/makefile b/makefile
index 21cc9e4..282d7ef 100755
--- a/makefile
+++ b/makefile
@@ -22,7 +22,7 @@ build:
 	$(CC) -Isrc/include `pkg-config --cflags gtk+-3.0` $(BUILD_FILES_GUI) -o zenmonitor `pkg-config --libs gtk+-3.0` -lm -no-pie -Wall $(CFLAGS)
 
 build-cli:
-	$(CC) -Isrc/include `pkg-config --cflags glib-2.0` $(BUILD_FILES_CLI) -o zenmonitor-cli `pkg-config --libs glib-2.0` -lm -no-pie -Wall $(CFLAGS)
+	$(CC) -Isrc/include `pkg-config --cflags glib-2.0` $(BUILD_FILES_CLI) -o zenmonitor-cli `pkg-config --libs glib-2.0` -lm -lncurses -no-pie -Wall $(CFLAGS)
 
 install:
 	mkdir -p $(DESTDIR)$(PREFIX)/bin
diff --git a/src/zenmonitor-cli.c b/src/zenmonitor-cli.c
index 6792d02..a89c14b 100644
--- a/src/zenmonitor-cli.c
+++ b/src/zenmonitor-cli.c
@@ -4,6 +4,7 @@
 #include <time.h>
 #include <unistd.h>
 #include <signal.h>
+#include <ncurses.h>
 #include "msr.h"
 #include "os.h"
 #include "zenpower.h"
@@ -14,6 +15,7 @@ gdouble delay = 0.5;
 gchar *file = "";
 SensorDataStore *store;
 int quit = 0;
+int refresh_in_place = 0;
 int output_once = 0;
 
 static GOptionEntry options[] = {
@@ -23,6 +25,8 @@ static GOptionEntry options[] = {
      "Interval of refreshing informations", "SECONDS"},
     {"coreid", 'c', 0, G_OPTION_ARG_NONE, &display_coreid,
      "Display core_id instead of core index", NULL},
+    {"refresh-in-place", 'r', 0, G_OPTION_ARG_NONE, &refresh_in_place,
+     "Whether to flush stdout block in-place.", NULL},
     {"output-once", 'o', 0, G_OPTION_ARG_NONE, &output_once,
      "Output CPU information once and quit", NULL},
     {NULL}};
@@ -141,7 +145,7 @@ void update_data()
     const SensorInit *sensorData;
 
     sensor_data_store_keep_time(store);
-
+    int i = 1; //ncurses uses 1-based indexing.
     for(source = sensor_sources; source->drv; source++)
     {
         if(source->enabled)
@@ -151,11 +155,19 @@ void update_data()
             {
                 node = source->sensors;
 
-                while(node)
+                while (node)
                 {
-                    sensorData = (SensorInit*)node->data;
+                    sensorData = (SensorInit *)node->data;
                     sensor_data_store_add_data(store, sensorData->label, *sensorData->value);
-                    printf("%s\t%f\n", sensorData->label, *sensorData->value);
+                    if (refresh_in_place)
+                    {
+                        mvprintw(i++, 0, "%s\t%f", sensorData->label, *sensorData->value);
+                        refresh();
+                    }
+                    else
+                    {
+                        printf("%s\t%f\n", sensorData->label, *sensorData->value);
+                    }
                     node = node->next;
                 }
             }
@@ -196,7 +208,16 @@ int main(int argc, char *argv[])
     store = sensor_data_store_new();
 
     init_sensors();
+    if (refresh_in_place)
+    {
+        initscr();
+        curs_set(0);
+    }
     start_watching();
+    if (refresh_in_place)
+    {
+        endwin();
+    }
     sensor_data_store_free(store);
 
     return EXIT_SUCCESS;
-- 
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