[2] | 1 | // Copyright (c) 2013 by István Váradi
|
---|
| 2 |
|
---|
| 3 | // This file is part of XPLRA, a remote-access plugin for X-Plane
|
---|
| 4 |
|
---|
| 5 | // Redistribution and use in source and binary forms, with or without
|
---|
| 6 | // modification, are permitted provided that the following conditions are met:
|
---|
| 7 |
|
---|
| 8 | // 1. Redistributions of source code must retain the above copyright notice, this
|
---|
| 9 | // list of conditions and the following disclaimer.
|
---|
| 10 | // 2. Redistributions in binary form must reproduce the above copyright notice,
|
---|
| 11 | // this list of conditions and the following disclaimer in the documentation
|
---|
| 12 | // and/or other materials provided with the distribution.
|
---|
| 13 |
|
---|
| 14 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
---|
| 15 | // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
---|
| 16 | // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
---|
| 17 | // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
|
---|
| 18 | // ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
---|
| 19 | // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
---|
| 20 | // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
---|
| 21 | // ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
---|
| 22 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
---|
| 23 | // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
---|
| 24 |
|
---|
| 25 | // The views and conclusions contained in the software and documentation are those
|
---|
| 26 | // of the authors and should not be interpreted as representing official policies,
|
---|
| 27 | // either expressed or implied, of the FreeBSD Project.
|
---|
| 28 |
|
---|
| 29 | //------------------------------------------------------------------------------
|
---|
| 30 |
|
---|
| 31 | #include "ServerThread.h"
|
---|
| 32 |
|
---|
[3] | 33 | #include "RequestQueue.h"
|
---|
[5] | 34 | #include "Protocol.h"
|
---|
[3] | 35 | #include "GetDataRefTask.h"
|
---|
| 36 | #include "TaskRequest.h"
|
---|
| 37 |
|
---|
| 38 | #include <xplcommon/Util.h>
|
---|
| 39 |
|
---|
| 40 | #include <cstdio>
|
---|
| 41 |
|
---|
[2] | 42 | //------------------------------------------------------------------------------
|
---|
| 43 |
|
---|
| 44 | using xplra::ServerThread;
|
---|
| 45 |
|
---|
| 46 | using xplcommon::LocalAcceptor;
|
---|
| 47 | using xplcommon::Mutex;
|
---|
[3] | 48 | using xplcommon::Util;
|
---|
| 49 |
|
---|
| 50 | using std::string;
|
---|
[2] | 51 |
|
---|
| 52 | //------------------------------------------------------------------------------
|
---|
| 53 |
|
---|
| 54 | Mutex ServerThread::instancesMutex;
|
---|
| 55 |
|
---|
| 56 | ServerThread::instances_t ServerThread::instances;
|
---|
| 57 |
|
---|
| 58 | //------------------------------------------------------------------------------
|
---|
| 59 |
|
---|
| 60 | void ServerThread::quitAll()
|
---|
| 61 | {
|
---|
| 62 | instancesMutex.lock();
|
---|
| 63 | for(instances_t::iterator i = instances.begin(); i!=instances.end(); ++i) {
|
---|
| 64 | (*i)->quit();
|
---|
| 65 | }
|
---|
| 66 | instancesMutex.unlock();
|
---|
| 67 | }
|
---|
| 68 |
|
---|
| 69 | //------------------------------------------------------------------------------
|
---|
| 70 |
|
---|
[3] | 71 | ServerThread::ServerThread(RequestQueue& requestQueue, LocalAcceptor& acceptor) :
|
---|
[2] | 72 | Thread(true),
|
---|
[3] | 73 | requestQueue(requestQueue),
|
---|
[2] | 74 | bufferedStream(acceptor.getSocket(&waiter)),
|
---|
| 75 | stream(*bufferedStream)
|
---|
| 76 | {
|
---|
| 77 | instancesMutex.lock();
|
---|
| 78 | instances.insert(this);
|
---|
| 79 | instancesMutex.unlock();
|
---|
| 80 | }
|
---|
| 81 |
|
---|
| 82 | //------------------------------------------------------------------------------
|
---|
| 83 |
|
---|
| 84 | ServerThread::~ServerThread()
|
---|
| 85 | {
|
---|
| 86 | delete bufferedStream;
|
---|
| 87 |
|
---|
| 88 | instancesMutex.lock();
|
---|
| 89 | instances.erase(this);
|
---|
| 90 | instancesMutex.unlock();
|
---|
| 91 | }
|
---|
| 92 |
|
---|
| 93 | //------------------------------------------------------------------------------
|
---|
| 94 |
|
---|
| 95 | void ServerThread::quit()
|
---|
| 96 | {
|
---|
| 97 | stream.interrupt();
|
---|
| 98 | }
|
---|
| 99 |
|
---|
| 100 | //------------------------------------------------------------------------------
|
---|
| 101 |
|
---|
| 102 | void ServerThread::run()
|
---|
| 103 | {
|
---|
[3] | 104 | Util::debug("hu.varadiistvan.xplra.ServerThread[%p]::run\n", this);
|
---|
| 105 | while(stream) {
|
---|
| 106 | uint8_t command = stream.readU8();
|
---|
| 107 | if (!stream) continue;
|
---|
| 108 |
|
---|
| 109 | // Util::debug("hu.varadiistvan.xplra.ServerThread[%p]::run: command=0x%02x\n",
|
---|
| 110 | // this, command);
|
---|
| 111 |
|
---|
[6] | 112 | if (command==Protocol::COMMAND_GET_SINGLE) {
|
---|
| 113 | if (!handleGetSingle(stream)) break;
|
---|
[3] | 114 | } else {
|
---|
[5] | 115 | stream.writeU8(Protocol::RESULT_INVALID_COMMAND);
|
---|
[3] | 116 | }
|
---|
| 117 | stream.flush();
|
---|
| 118 | }
|
---|
| 119 |
|
---|
| 120 | Util::debug("hu.varadiistvan.xplra.ServerThread[%p]::run: quitting\n", this);
|
---|
[2] | 121 | }
|
---|
| 122 |
|
---|
| 123 | //------------------------------------------------------------------------------
|
---|
| 124 |
|
---|
[6] | 125 | bool ServerThread::handleGetSingle(xplcommon::DataStream& stream)
|
---|
| 126 | {
|
---|
| 127 | uint8_t result = Protocol::RESULT_OK;
|
---|
| 128 |
|
---|
| 129 | GetDataRefTask* task = GetDataRefTask::create(result, stream);
|
---|
| 130 |
|
---|
| 131 | if (!stream) return false;
|
---|
| 132 | else if (task==0) {
|
---|
| 133 | stream.writeU8(Protocol::RESULT_INVALID_TYPE);
|
---|
| 134 | return true;
|
---|
| 135 | }
|
---|
| 136 |
|
---|
| 137 | TaskRequest request(task);
|
---|
| 138 | if (!requestQueue.execute(&request)) return false;
|
---|
| 139 |
|
---|
| 140 | if (task->isValid()) {
|
---|
| 141 | stream.writeU8(Protocol::RESULT_OK);
|
---|
| 142 | task->writeValue(stream);
|
---|
| 143 | } else {
|
---|
| 144 | stream.writeU8(Protocol::RESULT_UNKNOWN_DATAREF);
|
---|
| 145 | }
|
---|
| 146 |
|
---|
| 147 | return true;
|
---|
| 148 | }
|
---|
| 149 |
|
---|
| 150 | //------------------------------------------------------------------------------
|
---|
| 151 |
|
---|
[2] | 152 | // Local Variables:
|
---|
| 153 | // mode: C++
|
---|
| 154 | // c-basic-offset: 4
|
---|
| 155 | // indent-tabs-mode: nil
|
---|
| 156 | // End:
|
---|