Rename fletch -> dartino

platforms/stm/disco_fletch/src/circular_buffer.cc

-// Copyright (c) 2015, the Dartino project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE.md file.
-
-#include "platforms/stm/disco_fletch/src/circular_buffer.h"
-
-#include <stdlib.h>
-#include <string.h>
-
-CircularBuffer::CircularBuffer(size_t capacity) {
-  monitor_ = fletch::Platform::CreateMonitor();
-  // One additional byte needed to distinguish between empty and full.
-  capacity_ = capacity + 1;
-  buffer_ = new uint8_t[capacity_];
-  head_ = tail_ = 0;
-}
-
-CircularBuffer::~CircularBuffer() {
-  delete[] buffer_;
-}
-
-bool CircularBuffer::IsEmpty() {
-  fletch::ScopedMonitorLock locker(monitor_);
-  return head_ == tail_;
-}
-
-bool CircularBuffer::IsFull() {
-  fletch::ScopedMonitorLock locker(monitor_);
-  return ((head_ + 1) % capacity_) == tail_;
-}
-
-size_t CircularBuffer::Read(uint8_t* data, size_t count, Blocking block) {
-  fletch::ScopedMonitorLock locker(monitor_);
-
-  // If buffer is empty wait for data.
-  if (block == kBlock) {
-    if (head_ == tail_) {
-      monitor_->Wait();
-    }
-  }
-
-  int bytes;
-  int read = 0;
-
-  if (tail_ > head_) {
-    bytes = MIN(capacity_ - tail_, count);
-    memcpy(data, buffer_ + tail_, bytes);
-    read = bytes;
-    tail_ = (tail_ + bytes) % capacity_;
-  }
-
-  if (tail_ < head_) {
-    bytes = MIN(head_ - tail_, count - read);
-    memcpy(data + read, buffer_ + tail_, bytes);
-    read += bytes;
-    tail_ = (tail_ + bytes) % capacity_;
-  }
-
-  monitor_->Notify();
-
-  return read;
-}
-
-size_t CircularBuffer::Write(
-    const uint8_t* data, size_t count, Blocking block) {
-  fletch::ScopedMonitorLock locker(monitor_);
-
-  // If buffer is full wait for room.
-  if (block == kBlock) {
-    if (((head_ + 1) % capacity_) == tail_) {
-      monitor_->Wait();
-    }
-  }
-
-  int bytes;
-  int written = 0;
-
-  if (head_ >= tail_) {
-    bytes = (capacity_ - head_) - (tail_ == 0 ? 1 : 0);
-    bytes = MIN(bytes, count);
-    memcpy(buffer_ + head_, data, bytes);
-    written = bytes;
-    head_ = (head_ + bytes) % capacity_;
-  }
-
-  if (head_ < tail_) {
-    bytes =  MIN(tail_ - head_ - 1, count - written);
-    memcpy(buffer_ + head_, data + written, bytes);
-    written += bytes;
-    head_ = (head_ + bytes) % capacity_;
-  }
-
-  monitor_->Notify();
-
-  return written;
-}