Initial commit

storage_server

@@ -0,0 +1,36 @@
+#!/usr/bin/env php
+<?php
+
+is_dir($rootDir = rtrim($argv[1] ?? __DIR__ . '/documents', '/')) or mkdir($rootDir, 0777, true);
+$zmq = new ZMQContext();
+$pullSocket = $zmq->getSocket(ZMQ::SOCKET_PULL)->bind('ipc:///tmp/storage_server_sink.ipc');
+$replySocket = $zmq->getSocket(ZMQ::SOCKET_REP)->bind('ipc:///tmp/storage_server_query.ipc');
+$poll = new ZMQPoll();
+$poll->add($pullSocket, ZMQ::POLL_IN);
+$poll->add($replySocket, ZMQ::POLL_IN);
+$readable = $writable = [];
+while (true) {
+	$poll->poll($readable, $writable);
+	foreach ($readable as $socket) {
+		$socket === $pullSocket and handleIncomingFile();
+		$socket === $replySocket and handleIncomingRequest();
+	}
+}
+
+function handleIncomingFile(): void
+{
+	global $pullSocket, $rootDir;
+	$namespace = $pullSocket->recv(ZMQ::MODE_SNDMORE);
+	$name = $pullSocket->recv(ZMQ::MODE_SNDMORE);
+	$contents = $pullSocket->recv();
+	is_dir($targetDir = "$rootDir/$namespace") or @mkdir($targetDir, 0777, true);
+	file_put_contents("$targetDir/$name", $contents) and print('S');
+}
+
+function handleIncomingRequest(): void
+{
+	global $replySocket, $rootDir;
+	$namespace = $replySocket->recv(ZMQ::MODE_SNDMORE);
+	$name = $replySocket->recv();
+	$replySocket->send(@file_get_contents("$rootDir/{$namespace}/{$name}") ?: 'NOT_FOUND') and print('R');
+}