Merge pull request #393 from denizzzka/split_server_code
Split server code
This commit is contained in:
Brian Schott
GitHub
commit
6f387bf5cd
2
dub.json
2
dub.json
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@ -18,7 +18,7 @@
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"targetType": "library",
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"excludedSourceFiles": [
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"src/client/*",
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"src/server/server.d"
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"src/server/main.d"
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]
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},
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{
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@ -0,0 +1,384 @@
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/**
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* This file is part of DCD, a development tool for the D programming language.
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* Copyright (C) 2014 Brian Schott
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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module server.main;
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import core.sys.posix.sys.stat;
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import std.algorithm;
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import std.array;
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import std.conv;
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import std.datetime;
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import std.exception : enforce;
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import std.experimental.allocator;
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import std.experimental.allocator.mallocator;
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import std.experimental.logger;
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import std.file;
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import std.getopt;
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import std.path: buildPath;
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import std.process;
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import std.socket;
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import std.stdio;
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import msgpack;
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import common.dcd_version;
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import common.messages;
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import common.socket;
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import dsymbol.modulecache;
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import server.autocomplete;
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import server.server;
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int main(string[] args)
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{
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ushort port;
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bool help;
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bool printVersion;
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bool ignoreConfig;
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string[] importPaths;
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LogLevel level = globalLogLevel;
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version(Windows)
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{
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bool useTCP = true;
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string socketFile;
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}
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else
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{
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bool useTCP = false;
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string socketFile = generateSocketName();
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}
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sharedLog.fatalHandler = () {};
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try
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{
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getopt(args, "port|p", &port, "I", &importPaths, "help|h", &help,
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"version", &printVersion, "ignoreConfig", &ignoreConfig,
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"logLevel", &level, "tcp", &useTCP, "socketFile", &socketFile);
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}
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catch (ConvException e)
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{
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fatal(e.msg);
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printHelp(args[0]);
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return 1;
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}
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globalLogLevel = level;
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if (printVersion)
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{
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version (Windows)
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writeln(DCD_VERSION);
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else version (built_with_dub)
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writeln(DCD_VERSION);
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else
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write(DCD_VERSION, " ", GIT_HASH);
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return 0;
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}
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if (help)
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{
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printHelp(args[0]);
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return 0;
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}
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// If the user specified a port number, assume that they wanted a TCP
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// connection. Otherwise set the port number to the default and let the
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// useTCP flag deterimen what to do later.
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if (port != 0)
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useTCP = true;
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else
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port = DEFAULT_PORT_NUMBER;
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if (useTCP)
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socketFile = null;
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version (Windows) if (socketFile !is null)
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{
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fatal("UNIX domain sockets not supported on Windows");
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return 1;
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}
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if (serverIsRunning(useTCP, socketFile, port))
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{
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fatal("Another instance of DCD-server is already running");
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return 1;
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}
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info("Starting up...");
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StopWatch sw = StopWatch(AutoStart.yes);
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if (!ignoreConfig)
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importPaths ~= loadConfiguredImportDirs();
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Socket socket;
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if (useTCP)
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{
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socket = new TcpSocket(AddressFamily.INET);
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socket.blocking = true;
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socket.setOption(SocketOptionLevel.SOCKET, SocketOption.REUSEADDR, true);
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socket.bind(new InternetAddress("localhost", port));
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info("Listening on port ", port);
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}
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else
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{
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version(Windows)
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{
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fatal("UNIX domain sockets not supported on Windows");
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return 1;
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}
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else
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{
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socket = new Socket(AddressFamily.UNIX, SocketType.STREAM);
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if (exists(socketFile))
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{
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info("Cleaning up old socket file at ", socketFile);
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remove(socketFile);
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}
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socket.blocking = true;
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socket.setOption(SocketOptionLevel.SOCKET, SocketOption.REUSEADDR, true);
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socket.bind(new UnixAddress(socketFile));
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setAttributes(socketFile, S_IRUSR | S_IWUSR);
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info("Listening at ", socketFile);
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}
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}
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socket.listen(0);
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scope (exit)
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{
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info("Shutting down sockets...");
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socket.shutdown(SocketShutdown.BOTH);
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socket.close();
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if (!useTCP)
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remove(socketFile);
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info("Sockets shut down.");
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}
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ModuleCache cache = ModuleCache(new ASTAllocator);
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cache.addImportPaths(importPaths);
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infof("Import directories:\n %-(%s\n %)", cache.getImportPaths());
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ubyte[] buffer = cast(ubyte[]) Mallocator.instance.allocate(1024 * 1024 * 4); // 4 megabytes should be enough for anybody...
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scope(exit) Mallocator.instance.deallocate(buffer);
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sw.stop();
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info(cache.symbolsAllocated, " symbols cached.");
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info("Startup completed in ", sw.peek().to!("msecs", float), " milliseconds.");
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// No relative paths
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version (Posix) chdir("/");
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version (LittleEndian)
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immutable expectedClient = IPv4Union([1, 0, 0, 127]);
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else
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immutable expectedClient = IPv4Union([127, 0, 0, 1]);
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serverLoop: while (true)
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{
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auto s = socket.accept();
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s.blocking = true;
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if (useTCP)
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{
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// Only accept connections from localhost
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IPv4Union actual;
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InternetAddress clientAddr = cast(InternetAddress) s.remoteAddress();
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actual.i = clientAddr.addr;
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// Shut down if somebody tries connecting from outside
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if (actual.i != expectedClient.i)
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{
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fatal("Connection attempted from ", clientAddr.toAddrString());
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return 1;
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}
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}
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scope (exit)
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{
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s.shutdown(SocketShutdown.BOTH);
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s.close();
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}
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ptrdiff_t bytesReceived = s.receive(buffer);
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auto requestWatch = StopWatch(AutoStart.yes);
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size_t messageLength;
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// bit magic!
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(cast(ubyte*) &messageLength)[0..size_t.sizeof] = buffer[0..size_t.sizeof];
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while (bytesReceived < messageLength + size_t.sizeof)
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{
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immutable b = s.receive(buffer[bytesReceived .. $]);
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if (b == Socket.ERROR)
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{
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bytesReceived = Socket.ERROR;
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break;
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}
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bytesReceived += b;
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}
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if (bytesReceived == Socket.ERROR)
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{
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warning("Socket recieve failed");
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break;
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}
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AutocompleteRequest request;
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msgpack.unpack(buffer[size_t.sizeof .. bytesReceived], request);
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if (request.kind & RequestKind.clearCache)
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{
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info("Clearing cache.");
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cache.clear();
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}
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else if (request.kind & RequestKind.shutdown)
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{
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info("Shutting down.");
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break serverLoop;
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}
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else if (request.kind & RequestKind.query)
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{
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AutocompleteResponse response;
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response.completionType = "ack";
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ubyte[] responseBytes = msgpack.pack(response);
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s.send(responseBytes);
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continue;
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}
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if (request.kind & RequestKind.addImport)
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{
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cache.addImportPaths(request.importPaths);
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}
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if (request.kind & RequestKind.listImports)
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{
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AutocompleteResponse response;
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response.importPaths = cache.getImportPaths().map!(a => cast() a).array();
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ubyte[] responseBytes = msgpack.pack(response);
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info("Returning import path list");
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s.send(responseBytes);
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}
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else if (request.kind & RequestKind.autocomplete)
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{
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info("Getting completions");
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AutocompleteResponse response = complete(request, cache);
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ubyte[] responseBytes = msgpack.pack(response);
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s.send(responseBytes);
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}
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else if (request.kind & RequestKind.doc)
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{
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info("Getting doc comment");
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try
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{
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AutocompleteResponse response = getDoc(request, cache);
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ubyte[] responseBytes = msgpack.pack(response);
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s.send(responseBytes);
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}
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catch (Exception e)
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{
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warning("Could not get DDoc information", e.msg);
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}
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}
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else if (request.kind & RequestKind.symbolLocation)
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{
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try
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{
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AutocompleteResponse response = findDeclaration(request, cache);
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ubyte[] responseBytes = msgpack.pack(response);
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s.send(responseBytes);
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}
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catch (Exception e)
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{
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warning("Could not get symbol location", e.msg);
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}
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}
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else if (request.kind & RequestKind.search)
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{
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AutocompleteResponse response = symbolSearch(request, cache);
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ubyte[] responseBytes = msgpack.pack(response);
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s.send(responseBytes);
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}
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else if (request.kind & RequestKind.localUse)
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{
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try
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{
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AutocompleteResponse response = findLocalUse(request, cache);
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ubyte[] responseBytes = msgpack.pack(response);
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s.send(responseBytes);
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}
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catch (Exception e)
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{
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warning("Could not find local usage", e.msg);
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}
|
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}
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info("Request processed in ", requestWatch.peek().to!("msecs", float), " milliseconds");
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}
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return 0;
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}
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/// IP v4 address as bytes and a uint
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union IPv4Union
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{
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/// the bytes
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ubyte[4] b;
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/// the uint
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uint i;
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}
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import std.regex : ctRegex;
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alias envVarRegex = ctRegex!(`\$\{([_a-zA-Z][_a-zA-Z 0-9]*)\}`);
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private unittest
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{
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import std.regex : replaceAll;
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enum input = `${HOME}/aaa/${_bb_b}/ccc`;
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assert(replaceAll!(m => m[1])(input, envVarRegex) == `HOME/aaa/_bb_b/ccc`);
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}
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|
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/**
|
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* Implements the --help switch.
|
||||
*/
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||||
void printHelp(string programName)
|
||||
{
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writefln(
|
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`
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Usage: %s options
|
||||
|
||||
options:
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||||
-I PATH
|
||||
Includes PATH in the listing of paths that are searched for file
|
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imports.
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|
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--help | -h
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Prints this help message.
|
||||
|
||||
--version
|
||||
Prints the version number and then exits.
|
||||
|
||||
--port PORTNUMBER | -pPORTNUMBER
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Listens on PORTNUMBER instead of the default port 9166 when TCP sockets
|
||||
are used.
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||||
|
||||
--logLevel LEVEL
|
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The logging level. Valid values are 'all', 'trace', 'info', 'warning',
|
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'error', 'critical', 'fatal', and 'off'.
|
||||
|
||||
--tcp
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Listen on a TCP socket instead of a UNIX domain socket. This switch
|
||||
has no effect on Windows.
|
||||
|
||||
--socketFile FILENAME
|
||||
Use the given FILENAME as the path to the UNIX domain socket. Using
|
||||
this switch is an error on Windows.`, programName);
|
||||
}
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||||
|
|
@ -18,33 +18,16 @@
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module server.server;
|
||||
|
||||
import core.sys.posix.sys.stat;
|
||||
import std.algorithm;
|
||||
import std.array;
|
||||
import std.conv;
|
||||
import std.datetime;
|
||||
import std.exception : enforce;
|
||||
import std.experimental.allocator;
|
||||
import std.experimental.allocator.mallocator;
|
||||
import std.experimental.logger;
|
||||
import std.file;
|
||||
import std.file;
|
||||
import std.getopt;
|
||||
import std.path;
|
||||
import std.process;
|
||||
import std.socket;
|
||||
import std.stdio;
|
||||
import std.process: environment;
|
||||
import std.stdio: File;
|
||||
import std.stdio: KeepTerminator;
|
||||
|
||||
import msgpack;
|
||||
|
||||
import dsymbol.string_interning;
|
||||
|
||||
import common.dcd_version;
|
||||
import common.messages;
|
||||
import common.socket;
|
||||
import dsymbol.modulecache;
|
||||
import dsymbol.symbol;
|
||||
import server.autocomplete;
|
||||
|
||||
/// Name of the server configuration file
|
||||
enum CONFIG_FILE_NAME = "dcd.conf";
|
||||
|
|
@ -54,288 +37,6 @@ version(BSD) version = useXDG;
|
|||
version(FreeBSD) version = useXDG;
|
||||
version(OSX) version = useXDG;
|
||||
|
||||
int main(string[] args)
|
||||
{
|
||||
ushort port;
|
||||
bool help;
|
||||
bool printVersion;
|
||||
bool ignoreConfig;
|
||||
string[] importPaths;
|
||||
LogLevel level = globalLogLevel;
|
||||
version(Windows)
|
||||
{
|
||||
bool useTCP = true;
|
||||
string socketFile;
|
||||
}
|
||||
else
|
||||
{
|
||||
bool useTCP = false;
|
||||
string socketFile = generateSocketName();
|
||||
}
|
||||
|
||||
sharedLog.fatalHandler = () {};
|
||||
|
||||
try
|
||||
{
|
||||
getopt(args, "port|p", &port, "I", &importPaths, "help|h", &help,
|
||||
"version", &printVersion, "ignoreConfig", &ignoreConfig,
|
||||
"logLevel", &level, "tcp", &useTCP, "socketFile", &socketFile);
|
||||
}
|
||||
catch (ConvException e)
|
||||
{
|
||||
fatal(e.msg);
|
||||
printHelp(args[0]);
|
||||
return 1;
|
||||
}
|
||||
|
||||
globalLogLevel = level;
|
||||
|
||||
if (printVersion)
|
||||
{
|
||||
version (Windows)
|
||||
writeln(DCD_VERSION);
|
||||
else version (built_with_dub)
|
||||
writeln(DCD_VERSION);
|
||||
else
|
||||
write(DCD_VERSION, " ", GIT_HASH);
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (help)
|
||||
{
|
||||
printHelp(args[0]);
|
||||
return 0;
|
||||
}
|
||||
|
||||
// If the user specified a port number, assume that they wanted a TCP
|
||||
// connection. Otherwise set the port number to the default and let the
|
||||
// useTCP flag deterimen what to do later.
|
||||
if (port != 0)
|
||||
useTCP = true;
|
||||
else
|
||||
port = DEFAULT_PORT_NUMBER;
|
||||
|
||||
if (useTCP)
|
||||
socketFile = null;
|
||||
|
||||
version (Windows) if (socketFile !is null)
|
||||
{
|
||||
fatal("UNIX domain sockets not supported on Windows");
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (serverIsRunning(useTCP, socketFile, port))
|
||||
{
|
||||
fatal("Another instance of DCD-server is already running");
|
||||
return 1;
|
||||
}
|
||||
|
||||
info("Starting up...");
|
||||
StopWatch sw = StopWatch(AutoStart.yes);
|
||||
|
||||
if (!ignoreConfig)
|
||||
importPaths ~= loadConfiguredImportDirs();
|
||||
|
||||
Socket socket;
|
||||
if (useTCP)
|
||||
{
|
||||
socket = new TcpSocket(AddressFamily.INET);
|
||||
socket.blocking = true;
|
||||
socket.setOption(SocketOptionLevel.SOCKET, SocketOption.REUSEADDR, true);
|
||||
socket.bind(new InternetAddress("localhost", port));
|
||||
info("Listening on port ", port);
|
||||
}
|
||||
else
|
||||
{
|
||||
version(Windows)
|
||||
{
|
||||
fatal("UNIX domain sockets not supported on Windows");
|
||||
return 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
socket = new Socket(AddressFamily.UNIX, SocketType.STREAM);
|
||||
if (exists(socketFile))
|
||||
{
|
||||
info("Cleaning up old socket file at ", socketFile);
|
||||
remove(socketFile);
|
||||
}
|
||||
socket.blocking = true;
|
||||
socket.setOption(SocketOptionLevel.SOCKET, SocketOption.REUSEADDR, true);
|
||||
socket.bind(new UnixAddress(socketFile));
|
||||
setAttributes(socketFile, S_IRUSR | S_IWUSR);
|
||||
info("Listening at ", socketFile);
|
||||
}
|
||||
}
|
||||
socket.listen(0);
|
||||
|
||||
scope (exit)
|
||||
{
|
||||
info("Shutting down sockets...");
|
||||
socket.shutdown(SocketShutdown.BOTH);
|
||||
socket.close();
|
||||
if (!useTCP)
|
||||
remove(socketFile);
|
||||
info("Sockets shut down.");
|
||||
}
|
||||
|
||||
ModuleCache cache = ModuleCache(new ASTAllocator);
|
||||
cache.addImportPaths(importPaths);
|
||||
infof("Import directories:\n %-(%s\n %)", cache.getImportPaths());
|
||||
|
||||
ubyte[] buffer = cast(ubyte[]) Mallocator.instance.allocate(1024 * 1024 * 4); // 4 megabytes should be enough for anybody...
|
||||
scope(exit) Mallocator.instance.deallocate(buffer);
|
||||
|
||||
sw.stop();
|
||||
info(cache.symbolsAllocated, " symbols cached.");
|
||||
info("Startup completed in ", sw.peek().to!("msecs", float), " milliseconds.");
|
||||
|
||||
// No relative paths
|
||||
version (Posix) chdir("/");
|
||||
|
||||
version (LittleEndian)
|
||||
immutable expectedClient = IPv4Union([1, 0, 0, 127]);
|
||||
else
|
||||
immutable expectedClient = IPv4Union([127, 0, 0, 1]);
|
||||
|
||||
serverLoop: while (true)
|
||||
{
|
||||
auto s = socket.accept();
|
||||
s.blocking = true;
|
||||
|
||||
if (useTCP)
|
||||
{
|
||||
// Only accept connections from localhost
|
||||
IPv4Union actual;
|
||||
InternetAddress clientAddr = cast(InternetAddress) s.remoteAddress();
|
||||
actual.i = clientAddr.addr;
|
||||
// Shut down if somebody tries connecting from outside
|
||||
if (actual.i != expectedClient.i)
|
||||
{
|
||||
fatal("Connection attempted from ", clientAddr.toAddrString());
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
||||
scope (exit)
|
||||
{
|
||||
s.shutdown(SocketShutdown.BOTH);
|
||||
s.close();
|
||||
}
|
||||
ptrdiff_t bytesReceived = s.receive(buffer);
|
||||
|
||||
auto requestWatch = StopWatch(AutoStart.yes);
|
||||
|
||||
size_t messageLength;
|
||||
// bit magic!
|
||||
(cast(ubyte*) &messageLength)[0..size_t.sizeof] = buffer[0..size_t.sizeof];
|
||||
while (bytesReceived < messageLength + size_t.sizeof)
|
||||
{
|
||||
immutable b = s.receive(buffer[bytesReceived .. $]);
|
||||
if (b == Socket.ERROR)
|
||||
{
|
||||
bytesReceived = Socket.ERROR;
|
||||
break;
|
||||
}
|
||||
bytesReceived += b;
|
||||
}
|
||||
|
||||
if (bytesReceived == Socket.ERROR)
|
||||
{
|
||||
warning("Socket recieve failed");
|
||||
break;
|
||||
}
|
||||
|
||||
AutocompleteRequest request;
|
||||
msgpack.unpack(buffer[size_t.sizeof .. bytesReceived], request);
|
||||
if (request.kind & RequestKind.clearCache)
|
||||
{
|
||||
info("Clearing cache.");
|
||||
cache.clear();
|
||||
}
|
||||
else if (request.kind & RequestKind.shutdown)
|
||||
{
|
||||
info("Shutting down.");
|
||||
break serverLoop;
|
||||
}
|
||||
else if (request.kind & RequestKind.query)
|
||||
{
|
||||
AutocompleteResponse response;
|
||||
response.completionType = "ack";
|
||||
ubyte[] responseBytes = msgpack.pack(response);
|
||||
s.send(responseBytes);
|
||||
continue;
|
||||
}
|
||||
if (request.kind & RequestKind.addImport)
|
||||
{
|
||||
cache.addImportPaths(request.importPaths);
|
||||
}
|
||||
if (request.kind & RequestKind.listImports)
|
||||
{
|
||||
AutocompleteResponse response;
|
||||
response.importPaths = cache.getImportPaths().map!(a => cast() a).array();
|
||||
ubyte[] responseBytes = msgpack.pack(response);
|
||||
info("Returning import path list");
|
||||
s.send(responseBytes);
|
||||
}
|
||||
else if (request.kind & RequestKind.autocomplete)
|
||||
{
|
||||
info("Getting completions");
|
||||
AutocompleteResponse response = complete(request, cache);
|
||||
ubyte[] responseBytes = msgpack.pack(response);
|
||||
s.send(responseBytes);
|
||||
}
|
||||
else if (request.kind & RequestKind.doc)
|
||||
{
|
||||
info("Getting doc comment");
|
||||
try
|
||||
{
|
||||
AutocompleteResponse response = getDoc(request, cache);
|
||||
ubyte[] responseBytes = msgpack.pack(response);
|
||||
s.send(responseBytes);
|
||||
}
|
||||
catch (Exception e)
|
||||
{
|
||||
warning("Could not get DDoc information", e.msg);
|
||||
}
|
||||
}
|
||||
else if (request.kind & RequestKind.symbolLocation)
|
||||
{
|
||||
try
|
||||
{
|
||||
AutocompleteResponse response = findDeclaration(request, cache);
|
||||
ubyte[] responseBytes = msgpack.pack(response);
|
||||
s.send(responseBytes);
|
||||
}
|
||||
catch (Exception e)
|
||||
{
|
||||
warning("Could not get symbol location", e.msg);
|
||||
}
|
||||
}
|
||||
else if (request.kind & RequestKind.search)
|
||||
{
|
||||
AutocompleteResponse response = symbolSearch(request, cache);
|
||||
ubyte[] responseBytes = msgpack.pack(response);
|
||||
s.send(responseBytes);
|
||||
}
|
||||
else if (request.kind & RequestKind.localUse)
|
||||
{
|
||||
try
|
||||
{
|
||||
AutocompleteResponse response = findLocalUse(request, cache);
|
||||
ubyte[] responseBytes = msgpack.pack(response);
|
||||
s.send(responseBytes);
|
||||
}
|
||||
catch (Exception e)
|
||||
{
|
||||
warning("Could not find local usage", e.msg);
|
||||
}
|
||||
}
|
||||
info("Request processed in ", requestWatch.peek().to!("msecs", float), " milliseconds");
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Locates the configuration file
|
||||
*/
|
||||
|
|
@ -364,15 +65,6 @@ string getConfigurationLocation()
|
|||
}
|
||||
}
|
||||
|
||||
/// IP v4 address as bytes and a uint
|
||||
union IPv4Union
|
||||
{
|
||||
/// the bytes
|
||||
ubyte[4] b;
|
||||
/// the uint
|
||||
uint i;
|
||||
}
|
||||
|
||||
/**
|
||||
* Prints a warning message to the user when an old config file is detected.
|
||||
*/
|
||||
|
|
@ -425,40 +117,3 @@ string[] loadConfiguredImportDirs()
|
|||
.filter!(a => existanceCheck(a))
|
||||
.array();
|
||||
}
|
||||
|
||||
/**
|
||||
* Implements the --help switch.
|
||||
*/
|
||||
void printHelp(string programName)
|
||||
{
|
||||
writefln(
|
||||
`
|
||||
Usage: %s options
|
||||
|
||||
options:
|
||||
-I PATH
|
||||
Includes PATH in the listing of paths that are searched for file
|
||||
imports.
|
||||
|
||||
--help | -h
|
||||
Prints this help message.
|
||||
|
||||
--version
|
||||
Prints the version number and then exits.
|
||||
|
||||
--port PORTNUMBER | -pPORTNUMBER
|
||||
Listens on PORTNUMBER instead of the default port 9166 when TCP sockets
|
||||
are used.
|
||||
|
||||
--logLevel LEVEL
|
||||
The logging level. Valid values are 'all', 'trace', 'info', 'warning',
|
||||
'error', 'critical', 'fatal', and 'off'.
|
||||
|
||||
--tcp
|
||||
Listen on a TCP socket instead of a UNIX domain socket. This switch
|
||||
has no effect on Windows.
|
||||
|
||||
--socketFile FILENAME
|
||||
Use the given FILENAME as the path to the UNIX domain socket. Using
|
||||
this switch is an error on Windows.`, programName);
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue