src/PosixMQ.h
branchv_0
changeset 3 b71fc3b5e56b
parent 1 291bdd97fcff
child 6 65abb0376a0d
--- a/src/PosixMQ.h	Tue Mar 01 00:49:46 2022 +0100
+++ b/src/PosixMQ.h	Fri Mar 04 19:43:16 2022 +0100
@@ -27,25 +27,32 @@
 
 class PosixMQ {
 private:
-	size_t MSG_SIZE = 8192; // TODO: configurable/dynamic
+	const static size_t MSG_SIZE = 8192; // TODO: configurable/dynamic
 	std::string queueName;
 	mqd_t handle = -2;
+	bool unlinkOnClose = false;
 
-	PosixMQ(std::string queueName, mqd_t handle) : queueName(queueName), handle(handle) {
+	PosixMQ(std::string queueName, mqd_t handle, bool unlinkOnClose) : queueName(queueName), handle(handle), unlinkOnClose(unlinkOnClose) {
 	}
 
 public:
 
 	virtual ~PosixMQ() {
 		if (handle >= 0) mq_close(handle);
+		if (unlinkOnClose) mq_unlink(queueName.c_str());
 	}
 
-	static PosixMQ* open(std::string queueName) {
-		mqd_t handle = mq_open(queueName.c_str(), O_RDONLY | O_CREAT);
-		if (handle >= 0) return new PosixMQ(queueName, handle);
+	static PosixMQ* 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 PosixMQ(queueName, handle, unlinkOnClose);
 		else throw std::logic_error("Unable to open PosixMQ: " + 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);
@@ -55,10 +62,6 @@
 		else throw std::logic_error("Unable to receive PosixMQ message from " + queueName + " error: " + strerror(errno));
 	}
 
-	void unlink() {
-		mq_unlink(queueName.c_str());
-	}
-
 };
 
 }