Separate tests into separate files

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@788 42af7a65-404d-4744-a932-0658087f49c3

5 files changed, 534 insertions, 184 deletions

diff --git a/nuttx/examples/pipe/Makefile b/nuttx/examples/pipe/Makefile
index 1ed4f73b2..202a8d248 100644
--- a/nuttx/examples/pipe/Makefile
+++ b/nuttx/examples/pipe/Makefile
@@ -38,7 +38,7 @@
 
 ASRCS	= 
 AOBJS	= $(ASRCS:.S=$(OBJEXT))
-CSRCS	= pipe_main.c
+CSRCS	= pipe_main.c transfer_test.c interlock_test.c
 COBJS	= $(CSRCS:.c=$(OBJEXT))
 
 SRCS	= $(ASRCS) $(CSRCS)
diff --git a/nuttx/examples/pipe/interlock_test.c b/nuttx/examples/pipe/interlock_test.c
new file mode 100644
index 000000000..388bef100
--- /dev/null
+++ b/nuttx/examples/pipe/interlock_test.c
@@ -0,0 +1,215 @@
+/****************************************************************************
+ * examples/pipe/interlock_test.c
+ *
+ *   Copyright (C) 2008 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <sys/stat.h>
+
+#include <sys/types.h>
+
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include "pipe.h"
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: null_writer
+ ****************************************************************************/
+
+static void *null_writer(pthread_addr_t pvarg)
+{
+  int fd;
+
+  /* Wait a bit */
+
+  printf("null_writer: started -- sleeping\n");
+  sleep(5);
+
+  /* Then open the FIFO for write access */
+
+  printf("null_writer: Opening FIFO for write access\n");
+  fd = open(FIFO_PATH2, O_WRONLY);
+  if (fd < 0)
+    {
+      fprintf(stderr, "null_writer: Failed to open FIFO %s for writing, errno=%d\n",
+              FIFO_PATH2, errno);
+      return (void*)1;
+    }
+
+  /* Wait a bit more */
+
+  printf("null_writer: Opened %s for writing -- sleeping\n", FIFO_PATH2);
+  sleep(5);
+
+  /* Then close the FIFO */
+
+  printf("null_writer: Closing %s\n", FIFO_PATH2);
+  close(fd);
+  sleep(5);
+  
+  printf("null_writer: Returning success\n");
+  return (void*)0;
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: interlock_test
+ ****************************************************************************/
+
+int interlock_test(void)
+{
+  pthread_t writerid;
+  void *value;
+  char data[16];
+  ssize_t nbytes;
+  int fd;
+  int ret;
+
+  /* Create a FIFO */
+
+  ret = mkfifo(FIFO_PATH2, 0666);
+  if (ret < 0)
+    {
+      fprintf(stderr, "interlock_test: mkfifo failed with errno=%d\n", errno);
+      return 1;
+    }
+
+  /* Start the null_writer_thread */
+
+  printf("interlock_test: Starting null_writer thread\n");
+  ret = pthread_create(&writerid, NULL, null_writer, (pthread_addr_t)NULL);
+  if (ret != 0)
+    {
+      fprintf(stderr, "interlock_test: Failed to create null_writer thread, error=%d\n", ret);
+      ret = 2;
+      goto errout_with_fifo;
+    }
+ 
+  /* Open one end of the FIFO for reading.  This open call should block until the
+   * null_writer thread opens the other end of the FIFO for writing.
+   */
+
+  printf("interlock_test: Opening FIFO for read access\n");
+  fd = open(FIFO_PATH2, O_RDONLY);
+  if (fd < 0)
+    {
+      fprintf(stderr, "interlock_test: Failed to open FIFO %s for reading, errno=%d\n",
+              FIFO_PATH2, errno);
+      ret = 3;
+      goto errout_with_thread;
+    }
+
+  /* Attempt to read one byte from the FIFO.  This should return end-of-file because
+   * the null_writer closes the FIFO without writing anything.
+   */
+
+  printf("interlock_test: Reading from %s\n", FIFO_PATH2);
+  nbytes = read(fd, data, 16);
+  if (nbytes < 0 )
+    {
+      fprintf(stderr, "interlock_test: read failed, errno=%d\n", errno);
+      ret = 4;
+      goto errout_with_file;
+    }
+  else if (ret != 0)
+    {
+      fprintf(stderr, "interlock_test: Read %d bytes of data -- aborting: %d\n", nbytes);
+      ret = 5;
+      goto errout_with_file;
+    }
+
+  /* Close the file */
+
+  printf("interlock_test: Closing %s\n", FIFO_PATH2);
+  close(fd);
+
+  /* Wait for null_writer thread to complete */
+
+  printf("interlock_test: Waiting for null_writer thread\n");
+  ret = pthread_join(writerid, &value);
+  if (ret != 0)
+    {
+      fprintf(stderr, "interlock_test: pthread_join failed, error=%d\n", ret);
+      ret = 6;
+      goto errout_with_fifo;
+    }
+  else
+    {
+      printf("interlock_test: writer returned %d\n", (int)value);
+      if (value != (void*)0)
+        {
+          ret = 7;
+          goto errout_with_fifo;
+        }
+    }
+
+  /* unlink(FIFO_PATH2); */
+  printf("interlock_test: Returning success\n");
+  return 0;
+
+errout_with_file:
+  close(fd);
+errout_with_thread:
+  pthread_detach(writerid);
+  pthread_cancel(writerid);
+errout_with_fifo:
+  /* unlink(FIFO_PATH2); */
+  printf("interlock_test: Returning %d\n", ret);
+  return ret;
+}
diff --git a/nuttx/examples/pipe/pipe.h b/nuttx/examples/pipe/pipe.h
new file mode 100644
index 000000000..9f5c8e591
--- /dev/null
+++ b/nuttx/examples/pipe/pipe.h
@@ -0,0 +1,69 @@
+/****************************************************************************
+ * examples/pipe/pipe.h
+ *
+ *   Copyright (C) 2008 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef __EXAMPLES_PIPE_PIPE_H
+#define __EXAMPLES_PIPE_PIPE_H
+
+/****************************************************************************
+ * Compilation Switches
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+#define FIFO_PATH1 "/tmp/testfifo-1"
+#define FIFO_PATH2 "/tmp/testfifo-2"
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+extern int transfer_test(int fdin, int fdout);
+extern int interlock_test(void);
+
+#endif /* __EXAMPLES_PIPE_PIPE_H */
diff --git a/nuttx/examples/pipe/pipe_main.c b/nuttx/examples/pipe/pipe_main.c
index 47815f00e..d6764c247 100644
--- a/nuttx/examples/pipe/pipe_main.c
+++ b/nuttx/examples/pipe/pipe_main.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * pipe_main.c
+ * examples/pipe/pipe_main.c
  *
  *   Copyright (C) 2008 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
@@ -37,34 +37,22 @@
  * Included Files
  ****************************************************************************/
 
-#include <sys/types.h>
+#include <nuttx/config.h>
 #include <sys/stat.h>
 
+#include <sys/types.h>
+
 #include <stdio.h>
-#include <stdlib.h>
 #include <unistd.h>
-#include <pthread.h>
-#include <string.h>
 #include <fcntl.h>
 #include <errno.h>
 
+#include "pipe.h"
+
 /****************************************************************************
  * Definitions
  ****************************************************************************/
 
-#define FIFO_PATH1 "/tmp/testfifo-1"
-#define FIFO_PATH2 "/tmp/testfifo-2"
-
-#define MAX_BYTE      13
-
-#define WRITE_SIZE    MAX_BYTE
-#define NWRITES       1400
-#define NWRITE_BYTES (NWRITES * WRITE_SIZE)
-
-#define READ_SIZE    (2*MAX_BYTE)
-#define NREADS       (NWRITES / 2)
-#define NREAD_BYTES   NWRITE_BYTES
-
 /****************************************************************************
  * Private Types
  ****************************************************************************/
@@ -78,171 +66,6 @@
  ****************************************************************************/
 
 /****************************************************************************
- * Name: reader
- ****************************************************************************/
-
-static void *reader(pthread_addr_t pvarg)
-{
-  char buffer[READ_SIZE];
-  int fd = (int)pvarg;
-  int ret;
-  int nbytes;
-  int value;
-  int ndx;
-
-  printf("reader: started\n");
-  for (nbytes = 0, value = 0; nbytes < NREAD_BYTES;)
-    {
-      ret = read(fd, buffer, READ_SIZE);
-      if (ret < 0 )
-        {
-           fprintf(stderr, "reader: read failed, errno=%d\n", errno);
-           return (void*)1;
-        }
-      else if (ret == 0)
-        {
-          if (nbytes < NREAD_BYTES)
-            {
-              fprintf(stderr, "reader: Too few bytes read -- aborting: %d\n", nbytes);
-              return (void*)2;
-            }
-          break;
-        }
-      for (ndx = 0; ndx < ret; ndx++)
-        {
-          if (value >= WRITE_SIZE)
-            {
-              value = 0;
-            }
-          if (buffer[ndx] != value)
-            {
-              fprintf(stderr, "reader: Byte %d, expected %d, found %d\n",
-                      nbytes + ndx, value, buffer[ndx]);
-              return (void*)3;
-            }
-          value++;
-        }
-      nbytes += ret;
-      if (nbytes > NREAD_BYTES)
-        {
-          fprintf(stderr, "reader: Too many bytes read -- aborting: %d\n", nbytes);
-          return (void*)4;
-        }
-    }
-  printf("reader: %d bytes read\n", nbytes);
-  return (void*)0;
-}
-
-/****************************************************************************
- * Name: writer
- ****************************************************************************/
-
-static void *writer(pthread_addr_t pvarg)
-{
-  char buffer[WRITE_SIZE];
-  int fd = (int)pvarg;
-  int ret;
-  int i;
-
-  printf("writer: started\n");
-  for (i = 0; i < WRITE_SIZE; i++)
-    {
-      buffer[i] = i;
-    }
-
-  for (i = 0; i < NWRITES; i++)
-    {
-      ret = write(fd, buffer, WRITE_SIZE);
-      if (ret < 0 )
-        {
-           fprintf(stderr, "writer: write failed, errno=%d\n", errno);
-           return (void*)1;
-        }
-      else if (ret != WRITE_SIZE)
-        {
-           fprintf(stderr, "writer: Unexpected write size=%d\n", ret);
-           return (void*)2;
-        }
-    }
-  printf("writer: %d bytes written\n", NWRITE_BYTES);
-  return (void*)0;
-}
-
-/****************************************************************************
- * Name: transfer_test
- ****************************************************************************/
-
-static int transfer_test(int fdin, int fdout)
-{
-  pthread_t readerid;
-  pthread_t writerid;
-  void *value;
-  int tmp;
-  int ret;
-
-  /* Start reader thread */
-
-  printf("transfer_test: Starting reader thread\n");
-  ret = pthread_create(&readerid, NULL, reader, (pthread_addr_t)fdin);
-  if (ret != 0)
-    {
-      fprintf(stderr, "transfer_test: Failed to create reader thread, error=%d\n", ret);
-      return 1;
-    }
-
-  /* Start writer thread */
-
-  printf("transfer_test: Starting writer thread\n");
-  ret = pthread_create(&writerid, NULL, writer, (pthread_addr_t)fdout);
-  if (ret != 0)
-    {
-      fprintf(stderr, "transfer_test: Failed to create writer thread, error=%d\n", ret);
-      pthread_detach(readerid);
-      ret = pthread_cancel(readerid);
-      if (ret != 0)
-        {
-          fprintf(stderr, "transfer_test: Failed to cancel reader thread, error=%d\n", ret);
-        }
-      return 2;
-    }
-
-  /* Wait for writer thread to complete */
-
-  printf("transfer_test: Waiting for writer thread\n");
-  ret = pthread_join(writerid, &value);
-  if (ret != 0)
-    {
-      fprintf(stderr, "transfer_test: pthread_join failed, error=%d\n", ret);
-    }
-  else
-    {
-      ret = (int)value;
-      printf("transfer_test: writer returned %d\n", ret);
-    }
-
-  /* Wait for reader thread to complete */
-
-  printf("transfer_test: Waiting for reader thread\n");
-  tmp = pthread_join(readerid, &value);
-  if (tmp != 0)
-    {
-      fprintf(stderr, "transfer_test: pthread_join failed, error=%d\n", ret);
-    }
-  else
-    {
-      tmp = (int)value;
-      printf("transfer_test: reader returned %d\n", tmp);
-    }
-
-  if (ret == 0)
-    {
-      ret = tmp;
-    }
-  printf("transfer_test: returning %d\n", ret);
-  return ret;
-}
-
-/****************************************************************************
  * Name: null_writer
  ****************************************************************************/
 
diff --git a/nuttx/examples/pipe/transfer_test.c b/nuttx/examples/pipe/transfer_test.c
new file mode 100644
index 000000000..43bd284cc
--- /dev/null
+++ b/nuttx/examples/pipe/transfer_test.c
@@ -0,0 +1,243 @@
+/****************************************************************************
+ * examples/pipe/transfer_test.c
+ *
+ *   Copyright (C) 2008 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <sys/types.h>
+
+#include <stdio.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include "pipe.h"
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+#define MAX_BYTE      13
+
+#define WRITE_SIZE    MAX_BYTE
+#define NWRITES       1400
+#define NWRITE_BYTES (NWRITES * WRITE_SIZE)
+
+#define READ_SIZE    (2*MAX_BYTE)
+#define NREADS       (NWRITES / 2)
+#define NREAD_BYTES   NWRITE_BYTES
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: transfer_reader
+ ****************************************************************************/
+
+static void *transfer_reader(pthread_addr_t pvarg)
+{
+  char buffer[READ_SIZE];
+  int fd = (int)pvarg;
+  int ret;
+  int nbytes;
+  int value;
+  int ndx;
+
+  printf("transfer_reader: started\n");
+  for (nbytes = 0, value = 0; nbytes < NREAD_BYTES;)
+    {
+      ret = read(fd, buffer, READ_SIZE);
+      if (ret < 0 )
+        {
+           fprintf(stderr, "transfer_reader: read failed, errno=%d\n", errno);
+           return (void*)1;
+        }
+      else if (ret == 0)
+        {
+          if (nbytes < NREAD_BYTES)
+            {
+              fprintf(stderr, "transfer_reader: Too few bytes read -- aborting: %d\n", nbytes);
+              return (void*)2;
+            }
+          break;
+        }
+      for (ndx = 0; ndx < ret; ndx++)
+        {
+          if (value >= WRITE_SIZE)
+            {
+              value = 0;
+            }
+          if (buffer[ndx] != value)
+            {
+              fprintf(stderr, "transfer_reader: Byte %d, expected %d, found %d\n",
+                      nbytes + ndx, value, buffer[ndx]);
+              return (void*)3;
+            }
+          value++;
+        }
+      nbytes += ret;
+      if (nbytes > NREAD_BYTES)
+        {
+          fprintf(stderr, "transfer_reader: Too many bytes read -- aborting: %d\n", nbytes);
+          return (void*)4;
+        }
+    }
+  printf("transfer_reader: %d bytes read\n", nbytes);
+  return (void*)0;
+}
+
+/****************************************************************************
+ * Name: transfer_writer
+ ****************************************************************************/
+
+static void *transfer_writer(pthread_addr_t pvarg)
+{
+  char buffer[WRITE_SIZE];
+  int fd = (int)pvarg;
+  int ret;
+  int i;
+
+  printf("transfer_writer: started\n");
+  for (i = 0; i < WRITE_SIZE; i++)
+    {
+      buffer[i] = i;
+    }
+
+  for (i = 0; i < NWRITES; i++)
+    {
+      ret = write(fd, buffer, WRITE_SIZE);
+      if (ret < 0 )
+        {
+           fprintf(stderr, "transfer_writer: write failed, errno=%d\n", errno);
+           return (void*)1;
+        }
+      else if (ret != WRITE_SIZE)
+        {
+           fprintf(stderr, "transfer_writer: Unexpected write size=%d\n", ret);
+           return (void*)2;
+        }
+    }
+  printf("transfer_writer: %d bytes written\n", NWRITE_BYTES);
+  return (void*)0;
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: transfer_test
+ ****************************************************************************/
+
+int transfer_test(int fdin, int fdout)
+{
+  pthread_t readerid;
+  pthread_t writerid;
+  void *value;
+  int tmp;
+  int ret;
+
+  /* Start transfer_reader thread */
+
+  printf("transfer_test: Starting transfer_reader thread\n");
+  ret = pthread_create(&readerid, NULL, transfer_reader, (pthread_addr_t)fdin);
+  if (ret != 0)
+    {
+      fprintf(stderr, "transfer_test: Failed to create transfer_reader thread, error=%d\n", ret);
+      return 1;
+    }
+
+  /* Start transfer_writer thread */
+
+  printf("transfer_test: Starting transfer_writer thread\n");
+  ret = pthread_create(&writerid, NULL, transfer_writer, (pthread_addr_t)fdout);
+  if (ret != 0)
+    {
+      fprintf(stderr, "transfer_test: Failed to create transfer_writer thread, error=%d\n", ret);
+      pthread_detach(readerid);
+      ret = pthread_cancel(readerid);
+      if (ret != 0)
+        {
+          fprintf(stderr, "transfer_test: Failed to cancel transfer_reader thread, error=%d\n", ret);
+        }
+      return 2;
+    }
+
+  /* Wait for transfer_writer thread to complete */
+
+  printf("transfer_test: Waiting for transfer_writer thread\n");
+  ret = pthread_join(writerid, &value);
+  if (ret != 0)
+    {
+      fprintf(stderr, "transfer_test: pthread_join failed, error=%d\n", ret);
+    }
+  else
+    {
+      ret = (int)value;
+      printf("transfer_test: transfer_writer returned %d\n", ret);
+    }
+
+  /* Wait for transfer_reader thread to complete */
+
+  printf("transfer_test: Waiting for transfer_reader thread\n");
+  tmp = pthread_join(readerid, &value);
+  if (tmp != 0)
+    {
+      fprintf(stderr, "transfer_test: pthread_join failed, error=%d\n", ret);
+    }
+  else
+    {
+      tmp = (int)value;
+      printf("transfer_test: transfer_reader returned %d\n", tmp);
+    }
+
+  if (ret == 0)
+    {
+      ret = tmp;
+    }
+  printf("transfer_test: returning %d\n", ret);
+  return ret;
+}
+