some formating, add variadic templ for logf()

include/ota.h

@@ -1,4 +1,5 @@
-#pragma once
+#ifndef __OTA_H
+#define __OTA_H
 
 #include <ArduinoOTA.h>
 #include <ESP8266WiFi.h>
@@ -46,3 +47,5 @@ void ota_setup() {
   ArduinoOTA.begin();
 
 }
+
+#endif // __OTA_H

lib/httpserver/filesys.cpp

@@ -2,7 +2,7 @@
 
 FSInfo fsinfo;
 
-bool mount_fs() {
+auto mount_fs() -> bool {
   if(!LittleFS.begin()) {
     Serial.println("[ERROR] LittleFS.info(), reset ...");
     return false;
@@ -25,7 +25,7 @@ bool mount_fs() {
   return true;
 }
 
-bool format_fs() {
+auto format_fs() -> bool {
   printf("Formatting FS ! \n\r");
   return LittleFS.format();
 }

lib/httpserver/httpserver.cpp

@@ -1,11 +1,11 @@
 #include "httpserver.h"
 
-
-bool HTTPServer::start() {
+auto HTTPServer::start() -> bool {
   if (!mount_fs()) {
     logf("cant mount filesystem, EXIT !\n\r");
     return false;
   }
+
   logf("LittleFS mounted !\n\r");
   logf("root:\n\r");
   this->listRoot();
@@ -35,27 +35,6 @@ bool HTTPServer::start() {
   return true;
 }
 
-void HTTPServer::logf(const char *format, ...) {
-    va_list args;
-    va_start(args, format);
-    char temp[64];
-    size_t len = vsnprintf(temp, sizeof(temp), format, args);
-    Serial.print(log_prefix);
-    Serial.write(temp, len);
-    va_end(args);
-}
-
-void HTTPServer::logt(const char *format, ...) {
-    va_list args;
-    va_start(args, format);
-    // append logging string to local buffer
-    if(tbuf_head < TBUF_LEN) {
-        size_t len = vsnprintf(tbuf+tbuf_head, TBUF_LEN-tbuf_head, format, args);
-        tbuf_head += len;
-    }
-    va_end(args);
-}
-
 void HTTPServer::start_apps() {
   // application handler
 
@@ -76,10 +55,25 @@ void HTTPServer::start_apps() {
     if (tbuf_head) {
       send(200, "text/plain", tbuf);
       tbuf_head = 0;
-        }
-        else {
+    } else {
       send(202, "text/plain", "");
     }
   });
-
+}
+
+template <class... Args>
+void HTTPServer::logf(const char *format, Args... args) const {
+  Serial.print(log_prefix);
+  Serial.printf(format, args...);
+}
+
+void HTTPServer::logt(const char *format, ...) {
+  va_list args;
+  va_start(args, format);
+  // append logging string to local buffer
+  if (tbuf_head < TBUF_LEN) {
+    tbuf_head +=
+        vsnprintf(tbuf + tbuf_head, TBUF_LEN - tbuf_head, format, args);
+  }
+  va_end(args);
 }

lib/httpserver/httpserver.h

@@ -2,17 +2,16 @@
 #define __HTTPSERVER_H
 // Wrapper for ESP8266WebServer with Filesystem as HTTP source
 
-#include <ESP8266WebServer.h>
-#include <stdarg.h>
 #include "filesys.h"
 #include "treppe.h"
+#include <ESP8266WebServer.h>
+#include <stdarg.h>
 
 // debug log <ESP8266WebServer.h>
 // #define DEBUGV(f,...) do { Serial.printf(PSTR(f), ##__VA_ARGS__); } while (0)
 
 #define TBUF_LEN 256
 
-
 class HTTPServer : public ESP8266WebServer {
 
 private:
@@ -22,24 +21,19 @@ private:
   size_t tbuf_head = 0;
   char tbuf[TBUF_LEN];
 
-    void listRoot() {
-        ls(rootDir);
-    }
+  void listRoot() { ls(rootDir); }
   Treppe *treppe;
 
 public:
-    HTTPServer(const int _port, const char* _rootDir, Treppe* _treppe) :
-       ESP8266WebServer(_port), rootDir(_rootDir), treppe(_treppe)
-    { }
-    ~HTTPServer()
-    {
-        Serial.printf("[HTTPServer] shut down ...\n\r");
-    }
+  HTTPServer(const int _port, const char *_rootDir, Treppe *_treppe)
+      : ESP8266WebServer(_port), rootDir(_rootDir), treppe(_treppe) {}
+  ~HTTPServer() { Serial.printf("[HTTPServer] shut down ...\n\r"); }
 
   bool start();
   void start_apps();
 
-    void logf(const char *format, ...);
+  template <class... Args> 
+  void logf(const char *format, Args... args) const;
   void logt(const char *format, ...);
 };