Pipe test

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@775 42af7a65-404d-4744-a932-0658087f49c3

4 files changed, 409 insertions, 0 deletions

diff --git a/nuttx/examples/pipe/.depend b/nuttx/examples/pipe/.depend
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/nuttx/examples/pipe/.depend
diff --git a/nuttx/examples/pipe/Make.dep b/nuttx/examples/pipe/Make.dep
new file mode 100644
index 000000000..310f7f100
--- /dev/null
+++ b/nuttx/examples/pipe/Make.dep
@@ -0,0 +1,30 @@
+pipe_main.o: pipe_main.c \
+  /home/Owner/projects/nuttx/nuttx/include/sys/types.h \
+  /home/Owner/projects/nuttx/nuttx/include/nuttx/config.h \
+  /home/Owner/projects/nuttx/nuttx/include/arch/types.h \
+  /home/Owner/projects/nuttx/nuttx/include/nuttx/compiler.h \
+  /home/Owner/projects/nuttx/nuttx/include/sys/stat.h \
+  /home/Owner/projects/nuttx/nuttx/include/time.h \
+  /home/Owner/projects/nuttx/nuttx/include/stdio.h \
+  /usr/lib/gcc/i686-pc-cygwin/3.4.4/include/stdarg.h \
+  /home/Owner/projects/nuttx/nuttx/include/sched.h \
+  /home/Owner/projects/nuttx/nuttx/include/nuttx/sched.h \
+  /home/Owner/projects/nuttx/nuttx/include/queue.h \
+  /home/Owner/projects/nuttx/nuttx/include/signal.h \
+  /home/Owner/projects/nuttx/nuttx/include/semaphore.h \
+  /home/Owner/projects/nuttx/nuttx/include/limits.h \
+  /home/Owner/projects/nuttx/nuttx/include/arch/limits.h \
+  /home/Owner/projects/nuttx/nuttx/include/pthread.h \
+  /home/Owner/projects/nuttx/nuttx/include/mqueue.h \
+  /home/Owner/projects/nuttx/nuttx/include/queue.h \
+  /home/Owner/projects/nuttx/nuttx/include/nuttx/irq.h \
+  /home/Owner/projects/nuttx/nuttx/include/assert.h \
+  /home/Owner/projects/nuttx/nuttx/include/arch/irq.h \
+  /home/Owner/projects/nuttx/nuttx/include/nuttx/net.h \
+  /home/Owner/projects/nuttx/nuttx/include/nuttx/fs.h \
+  /home/Owner/projects/nuttx/nuttx/include/stdlib.h \
+  /home/Owner/projects/nuttx/nuttx/include/unistd.h \
+  /home/Owner/projects/nuttx/nuttx/include/string.h \
+  /home/Owner/projects/nuttx/nuttx/include/stddef.h \
+  /home/Owner/projects/nuttx/nuttx/include/fcntl.h \
+  /home/Owner/projects/nuttx/nuttx/include/errno.h
diff --git a/nuttx/examples/pipe/Makefile b/nuttx/examples/pipe/Makefile
new file mode 100644
index 000000000..1ed4f73b2
--- /dev/null
+++ b/nuttx/examples/pipe/Makefile
@@ -0,0 +1,75 @@
+############################################################################
+# Makefile
+#
+#   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.
+#
+############################################################################
+
+-include $(TOPDIR)/.config
+-include $(TOPDIR)/Make.defs
+
+ASRCS	= 
+AOBJS	= $(ASRCS:.S=$(OBJEXT))
+CSRCS	= pipe_main.c
+COBJS	= $(CSRCS:.c=$(OBJEXT))
+
+SRCS	= $(ASRCS) $(CSRCS)
+OBJS	= $(AOBJS) $(COBJS)
+
+BIN	= lib$(CONFIG_EXAMPLE)$(LIBEXT)
+
+all:	$(BIN)
+
+$(AOBJS): %$(OBJEXT): %.S
+	$(call ASSEMBLE, $<, $@)
+
+$(COBJS): %$(OBJEXT): %.c
+	$(call COMPILE, $<, $@)
+
+$(BIN):	$(OBJS)
+	@( for obj in $(OBJS) ; do \
+		$(call ARCHIVE, $@, $${obj}); \
+	done ; )
+
+.depend: Makefile $(SRCS)
+	@$(MKDEP) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
+	@touch $@
+
+depend: .depend
+
+clean:
+	@rm -f $(BIN) *~ .*.swp
+	$(call CLEAN)
+
+distclean: clean
+	@rm -f Make.dep .depend
+
+-include Make.dep
diff --git a/nuttx/examples/pipe/pipe_main.c b/nuttx/examples/pipe/pipe_main.c
new file mode 100644
index 000000000..eea6a67a6
--- /dev/null
+++ b/nuttx/examples/pipe/pipe_main.c
@@ -0,0 +1,304 @@
+/****************************************************************************
+ * pipe_main.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 <sys/types.h>
+#include <sys/stat.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <pthread.h>
+#include <string.h>
+#include <fcntl.h>
+#include <errno.h>
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+#ifndef CONFIG_EXAMPLES_FIFO_PATH
+# define CONFIG_EXAMPLES_FIFO_PATH "/tmp/testfifo"
+#endif
+
+#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: 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)
+        {
+#warning BUG: pipe should return zero when writer closes
+           fprintf(stderr, "reader: Received zero bytes\n");
+           return (void*)2;
+        }
+      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;
+    }
+  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: perform_test
+ ****************************************************************************/
+
+static int perform_test(int fdin, int fdout)
+{
+  pthread_t readerid;
+  pthread_t writerid;
+  void *value;
+  int tmp;
+  int ret;
+
+  /* Start reader thread */
+
+  printf("perform_test: Starting reader thread\n");
+  ret = pthread_create(&readerid, NULL, reader, (pthread_addr_t)fdin);
+  if (ret != 0)
+    {
+      fprintf(stderr, "perform_test: Failed to create reader thread, error=%d\n", ret);
+      return -1;
+    }
+
+  /* Start writer thread */
+
+  printf("perform_test: Starting writer thread\n");
+  ret = pthread_create(&writerid, NULL, writer, (pthread_addr_t)fdout);
+  if (ret != 0)
+    {
+      fprintf(stderr, "perform_test: Failed to create writer thread, error=%d\n", ret);
+      ret = pthread_cancel(readerid);
+      if (ret != 0)
+        {
+          fprintf(stderr, "perform_test: Failed to cancel reader thread, error=%d\n", ret);
+        }
+      return -1;
+    }
+
+  /* Wait for writer thread to complete */
+
+  printf("perform_test: Waiting for writer thread\n");
+  ret = pthread_join(writerid, &value);
+  if (ret != 0)
+    {
+      fprintf(stderr, "perform_test: pthread_join failed, error=%d\n", ret);
+    }
+  else
+    {
+      ret = (int)value;
+      printf("perform_test: writer returned %d\n", ret);
+    }
+
+  /* Wait for reader thread to complete */
+
+  printf("perform_test: Waiting for reader thread\n");
+  tmp = pthread_join(readerid, &value);
+  if (tmp != 0)
+    {
+      fprintf(stderr, "perform_test: pthread_join failed, error=%d\n", ret);
+    }
+  else
+    {
+      tmp = (int)value;
+      printf("perform_test: reader returned %d\n", tmp);
+    }
+
+  if (ret == 0)
+    {
+      ret = tmp;
+    }
+  printf("perform_test: returning %d\n", ret);
+  return ret;
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: user_initialize
+ ****************************************************************************/
+
+void user_initialize(void)
+{
+}
+
+/****************************************************************************
+ * Name: user_start
+ ****************************************************************************/
+
+int user_start(int argc, char *argv[])
+{
+  int fdin;
+  int fdout;
+  int ret;
+
+  /* Test FIFO logic */
+
+  printf("user_start: Performing FIFO test\n");
+  ret = mkfifo(CONFIG_EXAMPLES_FIFO_PATH, 0666);
+  if (ret < 0)
+    {
+      fprintf(stderr, "user_start: mkfifo failed with errno=%d\n", errno);
+      return 1;
+    }
+
+  fdin = open(CONFIG_EXAMPLES_FIFO_PATH, O_RDONLY);
+  if (fdin < 0)
+    {
+      fprintf(stderr, "user_start: Failed to open FIFO %s for reading, errno=%d\n",
+              CONFIG_EXAMPLES_FIFO_PATH, errno);
+      return 2;
+    }
+
+  fdout = open(CONFIG_EXAMPLES_FIFO_PATH, O_WRONLY);
+  if (fdout < 0)
+    {
+      fprintf(stderr, "user_start: Failed to open FIFO %s for writing, errno=%d\n",
+              CONFIG_EXAMPLES_FIFO_PATH, errno);
+      close(fdin);
+      return 3;
+    }
+
+  ret = perform_test(fdin, fdout);
+  close(fdin);
+  close(fdout);
+  unlink(CONFIG_EXAMPLES_FIFO_PATH);
+  if (ret != 0)
+    {
+      fprintf(stderr, "user_start: FIFO test FAILED\n");
+      return 4;
+    }
+  printf("user_start: FIFO test PASSED\n");
+
+  /* Test PIPE logic */
+
+  printf("user_start: Performing pipe test\n");
+  /* Not yet implemented */
+
+  fflush(stdout);
+  return 0;
+}