1 files changed, 126 insertions, 0 deletions
diff --git a/include/lib/ArduinoJson/StaticJsonBuffer.hpp b/include/lib/ArduinoJson/StaticJsonBuffer.hpp
new file mode 100644
index 0000000..267d9d0
--- /dev/null
+++ b/include/lib/ArduinoJson/StaticJsonBuffer.hpp
@@ -0,0 +1,126 @@
+// ArduinoJson - arduinojson.org
+// Copyright Benoit Blanchon 2014-2018
+// MIT License
+
+#pragma once
+
+#include "JsonBufferBase.hpp"
+
+namespace ArduinoJson {
+namespace Internals {
+
+class StaticJsonBufferBase : public JsonBufferBase<StaticJsonBufferBase> {
+ public:
+  class String {
+   public:
+    String(StaticJsonBufferBase* parent) : _parent(parent) {
+      _start = parent->_buffer + parent->_size;
+    }
+
+    void append(char c) {
+      if (_parent->canAlloc(1)) {
+        char* last = static_cast<char*>(_parent->doAlloc(1));
+        *last = c;
+      }
+    }
+
+    const char* c_str() const {
+      if (_parent->canAlloc(1)) {
+        char* last = static_cast<char*>(_parent->doAlloc(1));
+        *last = '\0';
+        return _start;
+      } else {
+        return NULL;
+      }
+    }
+
+   private:
+    StaticJsonBufferBase* _parent;
+    char* _start;
+  };
+
+  StaticJsonBufferBase(char* buffer, size_t capa)
+      : _buffer(buffer), _capacity(capa), _size(0) {}
+
+  // Gets the capacity of the buffer in bytes
+  size_t capacity() const {
+    return _capacity;
+  }
+
+  // Gets the current usage of the buffer in bytes
+  size_t size() const {
+    return _size;
+  }
+
+  // Allocates the specified amount of bytes in the buffer
+  virtual void* alloc(size_t bytes) {
+    alignNextAlloc();
+    if (!canAlloc(bytes)) return NULL;
+    return doAlloc(bytes);
+  }
+
+  // Resets the buffer.
+  // USE WITH CAUTION: this invalidates all previously allocated data
+  void clear() {
+    _size = 0;
+  }
+
+  String startString() {
+    return String(this);
+  }
+
+ protected:
+  ~StaticJsonBufferBase() {}
+
+ private:
+  void alignNextAlloc() {
+    _size = round_size_up(_size);
+  }
+
+  bool canAlloc(size_t bytes) const {
+    return _size + bytes <= _capacity;
+  }
+
+  void* doAlloc(size_t bytes) {
+    void* p = &_buffer[_size];
+    _size += bytes;
+    return p;
+  }
+
+  char* _buffer;
+  size_t _capacity;
+  size_t _size;
+};
+}
+
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wnon-virtual-dtor"
+#elif defined(__GNUC__)
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
+#pragma GCC diagnostic push
+#endif
+#pragma GCC diagnostic ignored "-Wnon-virtual-dtor"
+#endif
+
+// Implements a JsonBuffer with fixed memory allocation.
+// The template paramenter CAPACITY specifies the capacity of the buffer in
+// bytes.
+template <size_t CAPACITY>
+class StaticJsonBuffer : public Internals::StaticJsonBufferBase {
+ public:
+  explicit StaticJsonBuffer()
+      : Internals::StaticJsonBufferBase(_buffer, CAPACITY) {}
+
+ private:
+  char _buffer[CAPACITY];
+};
+}
+
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#elif defined(__GNUC__)
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
+#pragma GCC diagnostic pop
+#endif
+#endif