diff -r 67898f122f53 -r fc9911b1d295 src/PosixMQ.h
--- a/src/PosixMQ.h	Fri Mar 04 01:11:27 2022 +0100
+++ b/src/PosixMQ.h	Fri Mar 04 01:40:50 2022 +0100
@@ -22,7 +22,7 @@
 #include <cstring>
 
 namespace relpipe {
-namespace in {
+namespace out {
 namespace posixmq {
 
 class PosixMQ {
@@ -41,11 +41,16 @@
 	}
 
 	static PosixMQ* open(std::string queueName) {
-		mqd_t handle = mq_open(queueName.c_str(), O_RDONLY | O_CREAT);
+		mqd_t handle = mq_open(queueName.c_str(), O_RDWR | O_CREAT);
 		if (handle >= 0) return new PosixMQ(queueName, handle);
 		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("mq_send() = " + std::to_string(result) + " error: " + strerror(errno));
+	}
+
 	std::string receive() {
 		char buffer[MSG_SIZE + 1];
 		memset(buffer, 0, MSG_SIZE + 1);