src/ZeroMQ.h
branchv_0
changeset 1 27c11cea34de
parent 0 e5d547ab0c51
child 2 f724d805c34a
--- a/src/ZeroMQ.h	Sun May 01 18:23:45 2022 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,70 +0,0 @@
-/**
- * Relational pipes
- * Copyright © 2022 František Kučera (Frantovo.cz, GlobalCode.info)
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, version 3 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-#pragma once
-
-#include <mqueue.h>
-#include <string>
-#include <stdexcept>
-#include <cstring>
-
-namespace relpipe {
-namespace in {
-namespace zeromq {
-
-class ZeroMQ {
-private:
-	const static size_t MSG_SIZE = 8192; // TODO: configurable/dynamic
-	std::string queueName;
-	mqd_t handle = -2;
-	bool unlinkOnClose = false;
-
-	ZeroMQ(std::string queueName, mqd_t handle, bool unlinkOnClose) : queueName(queueName), handle(handle), unlinkOnClose(unlinkOnClose) {
-	}
-
-public:
-
-	virtual ~ZeroMQ() {
-		if (handle >= 0) mq_close(handle);
-		if (unlinkOnClose) mq_unlink(queueName.c_str());
-	}
-
-	static ZeroMQ* open(std::string queueName, bool unlinkOnClose = false) {
-		mqd_t handle = mq_open(queueName.c_str(), O_RDONLY | O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
-		if (handle >= 0) return new ZeroMQ(queueName, handle, unlinkOnClose);
-		else throw std::logic_error("Unable to open ZeroMQ: " + queueName + " error: " + strerror(errno));
-	}
-
-	void send(std::string message) {
-		int result = mq_send(handle, message.c_str(), message.size(), 0);
-		if (result) throw std::logic_error("Unable to send message to" + queueName + " error: " + strerror(errno));
-	}
-
-	std::string receive() {
-		char buffer[MSG_SIZE + 1];
-		memset(buffer, 0, MSG_SIZE + 1);
-		ssize_t msgSize = mq_receive(handle, buffer, MSG_SIZE, nullptr);
-
-		if (msgSize > sizeof (buffer))throw std::logic_error("Invalid ZeroMQ message size.");
-		else if (msgSize >= 0) return std::string(buffer, msgSize);
-		else throw std::logic_error("Unable to receive ZeroMQ message from " + queueName + " error: " + strerror(errno));
-	}
-
-};
-
-}
-}
-}