Merge branch 'master' of github.com:espressif/arduino-esp32

Author: vicatcu

CMakeLists.txt

@@ -209,3 +209,8 @@ set(COMPONENT_REQUIRES spi_flash mbedtls mdns ethernet)
 set(COMPONENT_PRIV_REQUIRES fatfs nvs_flash app_update spiffs bootloader_support openssl bt)
 
 register_component()
+
+set_source_files_properties(libraries/AzureIoT/src/az_iot/iothub_client/src/iothubtransport_mqtt_common.c
+    PROPERTIES COMPILE_FLAGS
+    -Wno-maybe-uninitialized
+)

boards.txt

@@ -68,12 +68,6 @@
 #define __STRINGIFY(a) #a
 #endif
 
-// undefine stdlib's abs if encountered
-#ifdef abs
-#undef abs
-#endif
-
-#define abs(x) ((x)>0?(x):-(x))
 #define constrain(amt,low,high) ((amt)<(low)?(low):((amt)>(high)?(high):(amt)))
 #define radians(deg) ((deg)*DEG_TO_RAD)
 #define degrees(rad) ((rad)*RAD_TO_DEG)
@@ -160,6 +154,7 @@ void shiftOut(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder, uint8_t val);
 #include "HardwareSerial.h"
 #include "Esp.h"
 
+using std::abs;
 using std::isinf;
 using std::isnan;
 using std::max;

cores/esp32/Arduino.h

@@ -97,8 +97,8 @@ class Stream: public Print
 
     float parseFloat();               // float version of parseInt
 
-    size_t readBytes(char *buffer, size_t length); // read chars from stream into buffer
-    size_t readBytes(uint8_t *buffer, size_t length)
+    virtual size_t readBytes(char *buffer, size_t length); // read chars from stream into buffer
+    virtual size_t readBytes(uint8_t *buffer, size_t length)
     {
         return readBytes((char *) buffer, length);
     }
@@ -114,7 +114,7 @@ class Stream: public Print
     // returns the number of characters placed in the buffer (0 means no valid data found)
 
     // Arduino String functions to be added here
-    String readString();
+    virtual String readString();
     String readStringUntil(char terminator);
 
 protected:

cores/esp32/Stream.h

@@ -2,6 +2,7 @@
  StreamString.cpp
 
  Copyright (c) 2015 Markus Sattler. All rights reserved.
+ This file is part of the esp8266 core for Arduino environment.
 
  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
@@ -22,31 +23,28 @@
 #include <Arduino.h>
 #include "StreamString.h"
 
-size_t StreamString::write(const uint8_t *data, size_t size)
-{
+size_t StreamString::write(const uint8_t *data, size_t size) {
     if(size && data) {
-        if(reserve(length() + size + 1)) {
-            memcpy((void *) (buffer + len), (const void *) data, size);
-            len += size;
-            *(buffer + len) = 0x00; // add null for string end
+        const unsigned int newlen = length() + size;
+        if(reserve(newlen + 1)) {
+            memcpy((void *) (wbuffer() + len()), (const void *) data, size);
+            setLen(newlen);
+            *(wbuffer() + newlen) = 0x00; // add null for string end
             return size;
         }
     }
     return 0;
 }
 
-size_t StreamString::write(uint8_t data)
-{
+size_t StreamString::write(uint8_t data) {
     return concat((char) data);
 }
 
-int StreamString::available()
-{
+int StreamString::available() {
     return length();
 }
 
-int StreamString::read()
-{
+int StreamString::read() {
     if(length()) {
         char c = charAt(0);
         remove(0, 1);
@@ -56,16 +54,14 @@ int StreamString::read()
     return -1;
 }
 
-int StreamString::peek()
-{
+int StreamString::peek() {
     if(length()) {
         char c = charAt(0);
         return c;
     }
     return -1;
 }
 
-void StreamString::flush()
-{
+void StreamString::flush() {
 }
 

cores/esp32/StreamString.cpp

@@ -65,9 +65,12 @@ long random(long howsmall, long howbig)
     return random(diff) + howsmall;
 }
 
-long map(long x, long in_min, long in_max, long out_min, long out_max)
-{
-    return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
+long map(long x, long in_min, long in_max, long out_min, long out_max) {
+    long divisor = (in_max - in_min);
+    if(divisor == 0){
+        return -1; //AVR returns -1, SAM returns 0
+    }
+    return (x - in_min) * (out_max - out_min) / divisor + out_min;
 }
 
 unsigned int makeWord(unsigned int w)