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Refactored YunClient and YunServer classes.
Added YunClient.connect() methods.
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8c9a06056e
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@ -26,6 +26,7 @@
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#ifndef IPAddress_h
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#define IPAddress_h
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#include <stdint.h>
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#include <Printable.h>
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// A class to make it easier to handle and pass around IP addresses
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167
hardware/arduino/avr/libraries/Bridge/YunClient.cpp
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167
hardware/arduino/avr/libraries/Bridge/YunClient.cpp
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@ -0,0 +1,167 @@
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/*
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Copyright (c) 2013 Arduino LLC. All right reserved.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <YunClient.h>
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YunClient::YunClient(int _h, BridgeClass &_b) :
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bridge(_b), handle(_h), opened(true), buffered(0) {
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}
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YunClient::YunClient(BridgeClass &_b) :
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bridge(_b), handle(0), opened(false), buffered(0) {
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}
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YunClient::~YunClient() {
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}
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YunClient& YunClient::operator=(const YunClient &_x) {
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opened = _x.opened;
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handle = _x.handle;
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return *this;
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}
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void YunClient::stop() {
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if (opened) {
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uint8_t cmd[] = {'j', handle};
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bridge.transfer(cmd, 2);
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}
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opened = false;
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}
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void YunClient::doBuffer() {
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// If there are already char in buffer exit
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if (buffered > 0)
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return;
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// Try to buffer up to 32 characters
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readPos = 0;
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uint8_t cmd[] = {'K', handle, sizeof(buffer)};
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buffered = bridge.transfer(cmd, 3, buffer, sizeof(buffer));
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}
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int YunClient::available() {
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// Look if there is new data available
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doBuffer();
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return buffered;
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}
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int YunClient::read() {
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doBuffer();
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if (buffered == 0)
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return -1; // no chars available
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else {
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buffered--;
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return buffer[readPos++];
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}
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}
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int YunClient::read(uint8_t *buff, size_t size) {
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int readed = 0;
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do {
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if (buffered == 0) {
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doBuffer();
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if (buffered == 0)
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return readed;
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}
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buff[readed++] = buffer[readPos++];
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buffered--;
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} while (readed < size);
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return readed;
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}
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int YunClient::peek() {
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doBuffer();
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if (buffered == 0)
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return -1; // no chars available
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else
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return buffer[readPos];
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}
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size_t YunClient::write(uint8_t c) {
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if (!opened)
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return 0;
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uint8_t cmd[] = {'l', handle, c};
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bridge.transfer(cmd, 3);
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return 1;
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}
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size_t YunClient::write(const uint8_t *buf, size_t size) {
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if (!opened)
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return 0;
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uint8_t cmd[] = {'l', handle};
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bridge.transfer(cmd, 2, buf, size, NULL, 0);
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return size;
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}
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void YunClient::flush() {
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}
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uint8_t YunClient::connected() {
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if (!opened)
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return false;
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uint8_t cmd[] = {'L', handle};
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uint8_t res[1];
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bridge.transfer(cmd, 2, res, 1);
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return (res[0] == 1);
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}
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int YunClient::connect(IPAddress ip, uint16_t port) {
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String address;
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address.reserve(18);
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address += ip[0];
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address += '.';
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address += ip[1];
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address += '.';
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address += ip[2];
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address += '.';
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address += ip[3];
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return connect(address.c_str(), port);
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}
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int YunClient::connect(const char *host, uint16_t port) {
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uint8_t tmp[] = {
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'C',
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(port >> 8) & 0xFF,
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port & 0xFF
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};
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uint8_t res[1];
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int l = bridge.transfer(tmp, 3, (const uint8_t *)host, strlen(host), res, 1);
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if (l==0)
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return 0;
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handle = res[0];
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// wait for connection
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uint8_t tmp2[] = { 'c', handle };
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uint8_t res2[1];
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while (true) {
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bridge.transfer(tmp2, 2, res2, 1);
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if (res2[0] == 0)
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break;
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delay(1);
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}
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opened = true;
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// check for successful connection
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if (connected())
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return 1;
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opened = false;
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handle = 0;
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return 0;
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}
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68
hardware/arduino/avr/libraries/Bridge/YunClient.h
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68
hardware/arduino/avr/libraries/Bridge/YunClient.h
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@ -0,0 +1,68 @@
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/*
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Copyright (c) 2013 Arduino LLC. All right reserved.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _YUN_CLIENT_H_
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#define _YUN_CLIENT_H_
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#include <Bridge.h>
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#include <Client.h>
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class YunClient : public Client {
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public:
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// Constructor with a user provided BridgeClass instance
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YunClient(int _h, BridgeClass &_b = Bridge);
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YunClient(BridgeClass &_b = Bridge);
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~YunClient();
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// Stream methods
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// (read message)
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virtual int available();
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virtual int read();
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virtual int read(uint8_t *buf, size_t size);
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virtual int peek();
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// (write response)
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virtual size_t write(uint8_t);
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virtual size_t write(const uint8_t *buf, size_t size);
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virtual void flush();
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// TODO: add optimized function for block write
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virtual operator bool () { return opened; }
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YunClient& operator=(const YunClient &_x);
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virtual void stop();
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virtual uint8_t connected();
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virtual int connect(IPAddress ip, uint16_t port);
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virtual int connect(const char *host, uint16_t port);
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private:
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BridgeClass &bridge;
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unsigned int handle;
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boolean opened;
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private:
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void doBuffer();
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uint8_t buffered;
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uint8_t readPos;
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static const int BUFFER_SIZE = 64;
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uint8_t buffer[BUFFER_SIZE];
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};
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#endif // _YUN_CLIENT_H_
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@ -17,6 +17,7 @@
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*/
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#include <YunServer.h>
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#include <YunClient.h>
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YunServer::YunServer(uint16_t _p, BridgeClass &_b) :
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bridge(_b), port(_p), listening(false), useLocalhost(false) {
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@ -45,104 +46,3 @@ YunClient YunServer::accept() {
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return YunClient(res[0]);
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}
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YunClient::YunClient(int _h, BridgeClass &_b) :
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bridge(_b), handle(_h), opened(true), buffered(0) {
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}
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YunClient::YunClient(BridgeClass &_b) :
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bridge(_b), handle(0), opened(false), buffered(0) {
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}
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YunClient::~YunClient() {
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}
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YunClient& YunClient::operator=(const YunClient &_x) {
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opened = _x.opened;
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handle = _x.handle;
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return *this;
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}
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void YunClient::stop() {
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if (opened) {
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uint8_t cmd[] = {'j', handle};
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bridge.transfer(cmd, 2);
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}
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opened = false;
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}
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void YunClient::doBuffer() {
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// If there are already char in buffer exit
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if (buffered > 0)
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return;
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// Try to buffer up to 32 characters
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readPos = 0;
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uint8_t cmd[] = {'K', handle, sizeof(buffer)};
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buffered = bridge.transfer(cmd, 3, buffer, sizeof(buffer));
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}
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int YunClient::available() {
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// Look if there is new data available
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doBuffer();
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return buffered;
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}
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int YunClient::read() {
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doBuffer();
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if (buffered == 0)
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return -1; // no chars available
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else {
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buffered--;
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return buffer[readPos++];
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}
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}
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int YunClient::read(uint8_t *buff, size_t size) {
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int readed = 0;
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do {
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if (buffered == 0) {
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doBuffer();
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if (buffered == 0)
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return readed;
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}
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buff[readed++] = buffer[readPos++];
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buffered--;
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} while (readed < size);
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return readed;
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}
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int YunClient::peek() {
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doBuffer();
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if (buffered == 0)
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return -1; // no chars available
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else
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return buffer[readPos];
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}
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size_t YunClient::write(uint8_t c) {
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if (!opened)
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return 0;
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uint8_t cmd[] = {'l', handle, c};
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bridge.transfer(cmd, 3);
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return 1;
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}
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size_t YunClient::write(const uint8_t *buf, size_t size) {
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if (!opened)
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return 0;
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uint8_t cmd[] = {'l', handle};
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bridge.transfer(cmd, 2, buf, size, NULL, 0);
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return size;
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}
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void YunClient::flush() {
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}
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uint8_t YunClient::connected() {
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if (!opened)
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return false;
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uint8_t cmd[] = {'L', handle};
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uint8_t res[1];
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bridge.transfer(cmd, 2, res, 1);
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return (res[0] == 1);
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}
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@ -16,12 +16,11 @@
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef CONNECTOR_H_
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#define CONNECTOR_H_
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#ifndef _YUN_SERVER_H_
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#define _YUN_SERVER_H_
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#include <Bridge.h>
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#include <Server.h>
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#include <Client.h>
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class YunClient;
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@ -45,47 +44,4 @@ private:
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BridgeClass &bridge;
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};
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class YunClient : public Client {
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public:
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// Constructor with a user provided BridgeClass instance
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YunClient(int _h, BridgeClass &_b = Bridge);
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YunClient(BridgeClass &_b = Bridge);
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~YunClient();
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// Stream methods
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// (read message)
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virtual int available();
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virtual int read();
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virtual int read(uint8_t *buf, size_t size);
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virtual int peek();
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// (write response)
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virtual size_t write(uint8_t);
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virtual size_t write(const uint8_t *buf, size_t size);
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virtual void flush();
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// TODO: add optimized function for block write
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virtual operator bool () { return opened; }
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YunClient& operator=(const YunClient &_x);
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virtual void stop();
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virtual uint8_t connected();
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virtual int connect(IPAddress ip, uint16_t port) { /* TODO */ };
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virtual int connect(const char *host, uint16_t port) { /* TODO */ };
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private:
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BridgeClass &bridge;
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unsigned int handle;
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boolean opened;
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private:
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void doBuffer();
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uint8_t buffered;
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uint8_t readPos;
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static const int BUFFER_SIZE = 64;
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uint8_t buffer[BUFFER_SIZE];
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};
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#endif // CONNECTOR_H_
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#endif // _YUN_SERVER_H_
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