Integrating error code class in api definitions

Author: andreagilardoni

api/Client.h

@@ -27,8 +27,8 @@ namespace arduino {
 class Client : public Stream {
 
 public:
-  virtual int connect(IPAddress ip, uint16_t port) =0;
-  virtual int connect(const char *host, uint16_t port) =0;
+  virtual ErrorCode connect(IPAddress ip, uint16_t port) =0;
+  virtual ErrorCode connect(const char *host, uint16_t port) =0;
   virtual size_t write(uint8_t) =0;
   virtual size_t write(const uint8_t *buf, size_t size) =0;
   virtual int available() = 0;

api/HardwareCAN.h

@@ -26,6 +26,7 @@
 
 #include "CanMsg.h"
 #include "CanMsgRingbuffer.h"
+#include "ErrorCodes.h"
 
 /**************************************************************************************
  * TYPEDEF
@@ -62,7 +63,7 @@ class HardwareCAN
    * @param can_bitrate the bus bit rate
    * @return true if initialization succeeded and the controller is operational
    */
-  virtual bool begin(CanBitRate const can_bitrate) = 0;
+  virtual ErrorCode begin(CanBitRate const can_bitrate) = 0;
 
   /**
    * Disable the CAN controller.

api/HardwareI2C.h

@@ -27,8 +27,8 @@ namespace arduino {
 class HardwareI2C : public Stream
 {
   public:
-    virtual void begin() = 0;
-    virtual void begin(uint8_t address) = 0;
+    virtual ErrorCode begin() = 0;
+    virtual ErrorCode begin(uint8_t address) = 0;
     virtual void end() = 0;
 
     virtual void setClock(uint32_t freq) = 0;

api/HardwareSPI.h

@@ -121,7 +121,7 @@ class HardwareSPI
     virtual void attachInterrupt() = 0;
     virtual void detachInterrupt() = 0;
 
-    virtual void begin() = 0;
+    virtual ErrorCode begin() = 0;
     virtual void end() = 0;
 };
 

api/HardwareSerial.h

@@ -88,8 +88,8 @@ namespace arduino {
 class HardwareSerial : public Stream
 {
   public:
-    virtual void begin(unsigned long) = 0;
-    virtual void begin(unsigned long baudrate, uint16_t config) = 0;
+    virtual ErrorCode begin(unsigned long) = 0;
+    virtual ErrorCode begin(unsigned long baudrate, uint16_t config) = 0;
     virtual void end() = 0;
     virtual int available(void) = 0;
     virtual int peek(void) = 0;

api/Stream.h

@@ -23,6 +23,7 @@
 
 #include <inttypes.h>
 #include "Print.h"
+#include "ErrorCodes.h"
 
 // compatibility macros for testing
 /*