added artifacts

artifacts/include/msg_msg.h

@@ -0,0 +1,66 @@
+#pragma once
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <sys/ipc.h>
+#include <sys/msg.h>
+
+int make_queue(key_t key, int msgflg)
+{
+    int result;
+    if ((result = msgget(key, msgflg)) == -1) {
+        perror("msgget");
+        exit(-1);
+    }
+    return result;
+}
+
+int cleanup_queue_no_err(key_t key)
+{
+    return msgctl(key, IPC_RMID, 0);
+}
+
+int cleanup_queue(key_t key)
+{
+    int result;
+    if ((result = msgctl(key, IPC_RMID, 0)) == -1) {
+        perror("msgctl");
+        exit(-1);
+    }
+    return result;
+}
+
+typedef struct {
+  long mtype;
+  char mtext[1];
+} msg;
+
+void send_msg(int msqid, void *msgp, size_t msgsz, int msgflg)
+{
+    if (msgsnd(msqid, msgp, msgsz, msgflg) == -1) {
+        perror("msgsnd");
+        exit(-1);
+    }
+    return;
+}
+
+void send_msg_no_err(int msqid, void *msgp, size_t msgsz, int msgflg)
+{
+    msgsnd(msqid, msgp, msgsz, msgflg);
+}
+
+ssize_t get_msg(int msqid, void *msgp, size_t msgsz, long msgtyp, int msgflg)
+{
+    ssize_t ret;
+    ret = msgrcv(msqid, msgp, msgsz, msgtyp, msgflg);
+    if (ret < 0) {
+        perror("msgrcv");
+        exit(-1);
+    }
+    return ret;
+}
+
+ssize_t get_msg_no_err(int msqid, void *msgp, size_t msgsz, long msgtyp, int msgflg)
+{
+    return msgrcv(msqid, msgp, msgsz, msgtyp, msgflg);
+}