Add uptime route

src/components/state.cpp

@@ -0,0 +1,36 @@
+///////////////////////////////////////////////////////////////////////////////
+// Tyler Perkins
+// 29-4-22
+// System functions implementation
+//
+
+#include "state.hpp"
+
+bool state::getUptime(crow::json::wvalue& ret){
+    std::ifstream f ("/proc/uptime");
+    std::string line;
+    if(f.is_open()){
+        int space = -1;
+        std::getline(f, line);
+
+        for(int i = 0; line[i] != '\0'; ++i){
+            if(line[i] == ' '){
+                space = i;
+                break;
+            }
+        }
+
+        ret["uptime"] = std::stof(line.substr(0, space));
+        ret["idle"] = std::stof(line.substr(space+1));
+
+    } else {
+        ret["message"] = "Failed to open proc filesystem";
+        return false;
+    }
+
+    return true;
+}
+
+bool state::getRawUptime(std::string& ret){
+    return true;
+}

src/components/state.hpp

@@ -0,0 +1,17 @@
+///////////////////////////////////////////////////////////////////////////////
+// Tyler Perkins
+// 29-4-22
+// System functions definitions
+//
+
+#pragma once
+
+#include <crow.h>
+
+#include <string>
+#include <fstream>
+
+namespace state{
+    bool getUptime(crow::json::wvalue&);
+    bool getRawUptime(std::string&);
+}

src/routes.cpp

@@ -24,7 +24,17 @@ void setRoutes(crow::SimpleApp& app){
         }
     });
 
+    CROW_ROUTE(app, "/proc/uptime")([](){
+        crow::json::wvalue json;
+        bool status;
+
+        status = state::getUptime(json);
+        return crow::response(status ? 200: 503, json.dump());
+
+    });
+
     CROW_ROUTE(app, "/mem")([]{
         return "mem";
     });
+
 }

src/routes.hpp

@@ -11,5 +11,6 @@
 
 #include <crow.h>
 #include "components/memory.hpp"
+#include "components/state.hpp"
 
 void setRoutes(crow::SimpleApp&);