Added support for physical Ticket Dispenser / Coin Hopper

3rdparty/serial/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.15)
+
+project(serial CXX)
+
+# Platform-specific source files
+set(SERIAL_PLATFORM_SRCS)
+if(WINDOWS)
+    list(APPEND SERIAL_PLATFORM_SRCS
+        src/impl/win.cc
+        src/impl/list_ports/list_ports_win.cc
+    )
+elseif(UNIX)
+    list(APPEND SERIAL_PLATFORM_SRCS
+        src/impl/unix.cc
+        src/impl/list_ports/list_ports_linux.cc
+    )
+    if(APPLE)
+        list(APPEND SERIAL_PLATFORM_SRCS src/impl/list_ports/list_ports_osx.cc)
+    endif()
+endif()
+
+# Core serial library sources
+set(SERIAL_SRCS
+    src/serial.cc
+    ${SERIAL_PLATFORM_SRCS}
+)
+
+# Create static library
+add_library(serial STATIC ${SERIAL_SRCS})
+
+# Include directories
+target_include_directories(serial PUBLIC
+    ${CMAKE_CURRENT_SOURCE_DIR}/include
+)
+
+# Set C++ standard
+set_target_properties(serial PROPERTIES
+    CXX_STANDARD 11
+    CXX_STANDARD_REQUIRED ON
+)
+
+# Platform-specific libraries
+if(WINDOWS)
+    target_link_libraries(serial PRIVATE setupapi)
+elseif(UNIX)
+    if(APPLE)
+        find_library(IOKIT_LIBRARY IOKit)
+        find_library(FOUNDATION_LIBRARY Foundation)
+        target_link_libraries(serial PRIVATE ${FOUNDATION_LIBRARY} ${IOKIT_LIBRARY})
+    else()
+        target_link_libraries(serial PRIVATE rt pthread)
+    endif()
+endif()

3rdparty/serial/LICENSE

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+Copyright (c) 2012 William Woodall, John Harrison
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

3rdparty/serial/README.md

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+# Serial Communication Library
+
+[![Build Status](https://travis-ci.org/wjwwood/serial.svg?branch=master)](https://travis-ci.org/wjwwood/serial)*(Linux and OS X)* [![Build Status](https://ci.appveyor.com/api/projects/status/github/wjwwood/serial)](https://ci.appveyor.com/project/wjwwood/serial)*(Windows)*
+
+This is a cross-platform library for interfacing with rs-232 serial like ports written in C++. It provides a modern C++ interface with a workflow designed to look and feel like PySerial, but with the speed and control provided by C++. 
+
+This library is in use in several robotics related projects and can be built and installed to the OS like most unix libraries with make and then sudo make install, but because it is a catkin project it can also be built along side other catkin projects in a catkin workspace.
+
+Serial is a class that provides the basic interface common to serial libraries (open, close, read, write, etc..) and requires no extra dependencies. It also provides tight control over timeouts and control over handshaking lines. 
+
+### Documentation
+
+Website: http://wjwwood.github.io/serial/
+
+API Documentation: http://wjwwood.github.io/serial/doc/1.1.0/index.html
+
+### Dependencies
+
+Required:
+* [catkin](http://www.ros.org/wiki/catkin) - cmake and Python based buildsystem
+* [cmake](http://www.cmake.org) - buildsystem
+* [Python](http://www.python.org) - scripting language
+  * [empy](http://www.alcyone.com/pyos/empy/) - Python templating library
+  * [catkin_pkg](http://pypi.python.org/pypi/catkin_pkg/) - Runtime Python library for catkin
+
+Optional (for documentation):
+* [Doxygen](http://www.doxygen.org/) - Documentation generation tool
+* [graphviz](http://www.graphviz.org/) - Graph visualization software
+
+### Install
+
+Get the code:
+
+    git clone https://github.com/wjwwood/serial.git
+
+Build:
+
+    make
+
+Build and run the tests:
+
+    make test
+
+Build the documentation:
+
+    make doc
+
+Install:
+
+    make install
+
+### License
+
+[The MIT License](LICENSE)
+
+### Authors
+
+William Woodall <[email protected]>
+John Harrison <[email protected]>
+
+### Contact
+
+William Woodall <[email protected]>

3rdparty/serial/include/serial/impl/unix.h

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+/*!
+ * \file serial/impl/unix.h
+ * \author  William Woodall <[email protected]>
+ * \author  John Harrison <[email protected]>
+ * \version 0.1
+ *
+ * \section LICENSE
+ *
+ * The MIT License
+ *
+ * Copyright (c) 2012 William Woodall, John Harrison
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * \section DESCRIPTION
+ *
+ * This provides a unix based pimpl for the Serial class. This implementation is
+ * based off termios.h and uses select for multiplexing the IO ports.
+ *
+ */
+
+#if !defined(_WIN32)
+
+#ifndef SERIAL_IMPL_UNIX_H
+#define SERIAL_IMPL_UNIX_H
+
+#include "serial/serial.h"
+
+#include <pthread.h>
+
+namespace serial {
+
+using std::size_t;
+using std::string;
+using std::invalid_argument;
+
+using serial::SerialException;
+using serial::IOException;
+
+class MillisecondTimer {
+public:
+  MillisecondTimer(const uint32_t millis);         
+  int64_t remaining();
+
+private:
+  static timespec timespec_now();
+  timespec expiry;
+};
+
+class serial::Serial::SerialImpl {
+public:
+  SerialImpl (const string &port,
+              unsigned long baudrate,
+              bytesize_t bytesize,
+              parity_t parity,
+              stopbits_t stopbits,
+              flowcontrol_t flowcontrol);
+
+  virtual ~SerialImpl ();
+
+  void
+  open ();
+
+  void
+  close ();
+
+  bool
+  isOpen () const;
+
+  size_t
+  available ();
+
+  bool
+  waitReadable (uint32_t timeout);
+
+  void
+  waitByteTimes (size_t count);
+
+  size_t
+  read (uint8_t *buf, size_t size = 1);
+
+  size_t
+  write (const uint8_t *data, size_t length);
+
+  void
+  flush ();
+
+  void
+  flushInput ();
+
+  void
+  flushOutput ();
+
+  void
+  sendBreak (int duration);
+
+  void
+  setBreak (bool level);
+
+  void
+  setRTS (bool level);
+
+  void
+  setDTR (bool level);
+
+  bool
+  waitForChange ();
+
+  bool
+  getCTS ();
+
+  bool
+  getDSR ();
+
+  bool
+  getRI ();
+
+  bool
+  getCD ();
+
+  void
+  setPort (const string &port);
+
+  string
+  getPort () const;
+
+  void
+  setTimeout (Timeout &timeout);
+
+  Timeout
+  getTimeout () const;
+
+  void
+  setBaudrate (unsigned long baudrate);
+
+  unsigned long
+  getBaudrate () const;
+
+  void
+  setBytesize (bytesize_t bytesize);
+
+  bytesize_t
+  getBytesize () const;
+
+  void
+  setParity (parity_t parity);
+
+  parity_t
+  getParity () const;
+
+  void
+  setStopbits (stopbits_t stopbits);
+
+  stopbits_t
+  getStopbits () const;
+
+  void
+  setFlowcontrol (flowcontrol_t flowcontrol);
+
+  flowcontrol_t
+  getFlowcontrol () const;
+
+  void
+  readLock ();
+
+  void
+  readUnlock ();
+
+  void
+  writeLock ();
+
+  void
+  writeUnlock ();
+
+protected:
+  void reconfigurePort ();
+
+private:
+  string port_;               // Path to the file descriptor
+  int fd_;                    // The current file descriptor
+
+  bool is_open_;
+  bool xonxoff_;
+  bool rtscts_;
+
+  Timeout timeout_;           // Timeout for read operations
+  unsigned long baudrate_;    // Baudrate
+  uint32_t byte_time_ns_;     // Nanoseconds to transmit/receive a single byte
+
+  parity_t parity_;           // Parity
+  bytesize_t bytesize_;       // Size of the bytes
+  stopbits_t stopbits_;       // Stop Bits
+  flowcontrol_t flowcontrol_; // Flow Control
+
+  // Mutex used to lock the read functions
+  pthread_mutex_t read_mutex;
+  // Mutex used to lock the write functions
+  pthread_mutex_t write_mutex;
+};
+
+}
+
+#endif // SERIAL_IMPL_UNIX_H
+
+#endif // !defined(_WIN32)