1 files changed, 64 insertions, 0 deletions
diff --git a/tests/mqtest.c b/tests/mqtest.c
new file mode 100644
index 0000000..f2808c8
--- /dev/null
+++ b/tests/mqtest.c
@@ -0,0 +1,64 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <mqueue.h>
+
+#include <assert.h>
+
+
+static mqd_t mq_test;
+static mqd_t mq_recv;
+static const size_t bufsiz = 256;
+
+int main(int argc, char **argv)
+{
+  int c_stat;
+  struct mq_attr m_attr;
+  char buf[bufsiz], recv[bufsiz];
+  unsigned int prio;
+  ssize_t sz_recv;
+
+  memset(buf, '\0', bufsiz);
+  memset(recv, '\0', bufsiz);
+  if (argc > 1)
+    strncpy(buf, argv[1], bufsiz-1);
+
+  m_attr.mq_flags = 0;
+  m_attr.mq_msgsize = bufsiz;
+  m_attr.mq_maxmsg = 10;
+  m_attr.mq_curmsgs = 0;
+
+  mq_unlink("/testmq");
+  assert( (mq_test = mq_open( "/testmq", O_NONBLOCK | O_CREAT | O_EXCL | O_RDWR, S_IRWXU | S_IRWXG, &m_attr )) != (mqd_t)-1 );
+  assert( mq_getattr(mq_test, &m_attr) == 0 );
+  printf("flags..........: %ld\n"
+         "maxmsg.........: %ld\n"
+         "msgsize........: %ld\n"
+         "curmsg.........: %ld\n",
+         m_attr.mq_flags, m_attr.mq_maxmsg, m_attr.mq_msgsize, m_attr.mq_curmsgs);
+
+  strcpy(buf, "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVQXYZ");
+  assert ( mq_send(mq_test, buf, bufsiz, 0) == 0 );
+  assert ( (sz_recv = mq_receive(mq_test, recv, bufsiz, &prio)) > 0 );
+
+  printf("SENT(%03lu bytes): %s\n", (long unsigned int) strlen(buf), buf);
+  printf("RECV(%03lu bytes): %s\n", (long unsigned int) sz_recv, recv);
+
+  memset(recv, '\0', bufsiz);
+  if (fork() > 0) {
+    assert( (mq_recv = mq_open( "/testmq", O_RDONLY, S_IRWXU | S_IRWXG, &m_attr )) != (mqd_t)-1 );
+    assert ( (sz_recv = mq_receive(mq_recv, recv, bufsiz, &prio)) > 0 );
+    printf("RECV(%03lu bytes): %s\n", (long unsigned int) sz_recv, recv);
+    return 0;
+  }
+  printf("SENT(%03lu bytes): %s\n", (long unsigned int) strlen(buf), buf);
+  assert ( mq_send(mq_test, buf, bufsiz, 0) == 0 );
+  wait(&c_stat);
+
+  return 0;
+}
+