first commit using PsychicHttp

lib/PsychicHttp/src/ChunkPrinter.h

@@ -0,0 +1,52 @@
+#ifndef ChunkPrinter_h
+#define ChunkPrinter_h
+
+#include "PsychicCore.h"
+#include "PsychicResponse.h"
+#include <Print.h>
+
+class ChunkPrinter : public Print {
+  private:
+    PsychicResponse * _response;
+    uint8_t *         _buffer;
+    size_t            _length;
+    size_t            _pos;
+
+  public:
+    ChunkPrinter(PsychicResponse * response, uint8_t * buffer, size_t len)
+        : _response(response)
+        , _buffer(buffer)
+        , _length(len)
+        , _pos(0) {
+    }
+
+    virtual ~ChunkPrinter() {
+    }
+
+    size_t write(uint8_t c) {
+        esp_err_t err;
+
+        _buffer[_pos] = c;
+        _pos++;
+
+        //if we're full, send a chunk
+        if (_pos == _length) {
+            _pos = 0;
+
+            err = _response->sendChunk(_buffer, _length);
+            if (err != ESP_OK)
+                return 0;
+        }
+
+        return 1;
+    }
+
+    virtual void flush() override {
+        if (_pos) {
+            _response->sendChunk(_buffer, _pos);
+            _pos = 0;
+        }
+    }
+};
+
+#endif