Add stub files for sending and receiving on FIFOs

6 files changed, 267 insertions, 7 deletions

diff --git a/nuttx/net/local/Make.defs b/nuttx/net/local/Make.defs
index 670cc9550..35dc643cc 100644
--- a/nuttx/net/local/Make.defs
+++ b/nuttx/net/local/Make.defs
@@ -38,7 +38,8 @@
 ifeq ($(CONFIG_NET_LOCAL),y)
 
 NET_CSRCS += local_conn.c local_connect.c local_release.c local_bind.c
-NET_CSRCS += local_listen.c local_accept.c local_fifo.c
+NET_CSRCS += local_listen.c local_accept.c local_fifo.c local_recvfrom.c
+NET_CSRCS += local_send.c local_sendto.c
 
 # Include UDP build support
 
diff --git a/nuttx/net/local/local.h b/nuttx/net/local/local.h
index 66ee6f417..8b7fb994c 100644
--- a/nuttx/net/local/local.h
+++ b/nuttx/net/local/local.h
@@ -79,10 +79,10 @@ enum local_state_s
   /* SOCK_STREAM only */
 
   LOCAL_STATE_LISTENING,       /* Server listening for connections */
-  LOCAL_STATE_CLOSED,          /* Server closed, no longer connected */
+  LOCAL_STATE_CLOSED,          /* Server closed, no longer connecting */
   LOCAL_STATE_ACCEPT,          /* Client waiting for a connection */
-  LOCAL_STATE_CONNECTED,       /* Client (or server) connected */
-  LOCAL_STATE_DISCONNECTED     /* Client disconnected */
+  LOCAL_STATE_CONNECTED,       /* Peer connected */
+  LOCAL_STATE_DISCONNECTED     /* Peer disconnected */
 };
 
 /* Representation of a local connection */
@@ -102,8 +102,8 @@ struct local_conn_s
   uint8_t lc_family;           /* SOCK_STREAM or SOCK_DGRAM */
   uint8_t lc_type;             /* See enum local_type_e */
   uint8_t lc_state;            /* See enum local_state_e */
-  int16_t lc_infd;             /* File descriptor of read-only FIFO */
-  int16_t lc_outfd;            /* File descriptor of write-only FIFO */
+  int16_t lc_infd;             /* File descriptor of read-only FIFO (peers) */
+  int16_t lc_outfd;            /* File descriptor of write-only FIFO (peers) */
   char lc_path[UNIX_PATH_MAX]; /* Path assigned by bind() */
 
   /* SOCK_STREAM fields common to both client and server */
@@ -124,7 +124,7 @@ struct local_conn_s
       dq_queue_t lc_conns;     /* List of connections */
     } server;
 
-    /* Fields unique to the client side */
+    /* Fields unique to the connecting client side */
 
     struct
     {
diff --git a/nuttx/net/local/local_accept.c b/nuttx/net/local/local_accept.c
index 3afe652c7..e3ce2f577 100644
--- a/nuttx/net/local/local_accept.c
+++ b/nuttx/net/local/local_accept.c
@@ -151,6 +151,8 @@ int psock_local_accept(FAR struct socket *psock, FAR struct sockaddr *addr,
                 }
             }
 
+          /* Do we have a connection?  Is the write-side FIFO opened? */
+
           if (ret == OK)
             {
               DEBUGASSERT(conn->lc_outfd >= 0);
@@ -168,6 +170,8 @@ int psock_local_accept(FAR struct socket *psock, FAR struct sockaddr *addr,
                 }
             }
 
+          /* Do we have a connection?  Are the FIFOs opened? */
+
           if (ret == OK)
             {
               DEBUGASSERT(conn->lc_infd >= 0);
diff --git a/nuttx/net/local/local_recvfrom.c b/nuttx/net/local/local_recvfrom.c
new file mode 100644
index 000000000..c31bec1f2
--- /dev/null
+++ b/nuttx/net/local/local_recvfrom.c
@@ -0,0 +1,91 @@
+/****************************************************************************
+ * net/local/local_recvfrom.c
+ *
+ *   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * 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>
+#if defined(CONFIG_NET) && defined(CONFIG_NET_LOCAL)
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <errno.h>
+
+#include <nuttx/net/net.h>
+
+#include "local/local.h"
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Function: psock_recvfrom
+ *
+ * Description:
+ *   recvfrom() receives messages from a local socket, and may be used to
+ *   receive data on a socket whether or not it is connection-oriented.
+ *
+ *   If from is not NULL, and the underlying protocol provides the source
+ *   address, this source address is filled in. The argument fromlen
+ *   initialized to the size of the buffer associated with from, and modified
+ *   on return to indicate the actual size of the address stored there.
+ *
+ * Parameters:
+ *   psock    A pointer to a NuttX-specific, internal socket structure
+ *   buf      Buffer to receive data
+ *   len      Length of buffer
+ *   flags    Receive flags
+ *   from     Address of source (may be NULL)
+ *   fromlen  The length of the address structure
+ *
+ * Returned Value:
+ *   On success, returns the number of characters sent.  If no data is
+ *   available to be received and the peer has performed an orderly shutdown,
+ *   recv() will return 0.  Otherwise, on errors, -1 is returned, and errno
+ *   is set appropriately (see receivefrom for the complete list).
+ *
+ ****************************************************************************/
+
+ssize_t psock_local_recvfrom(FAR struct socket *psock, FAR void *buf,
+                             size_t len, int flags, FAR struct sockaddr *from,
+                             FAR socklen_t *fromlen)
+{
+#warning Missing logic
+  return -ENOSYS;
+}
+
+#endif /* CONFIG_NET && CONFIG_NET_LOCAL */
diff --git a/nuttx/net/local/local_send.c b/nuttx/net/local/local_send.c
new file mode 100644
index 000000000..b0cb1d22f
--- /dev/null
+++ b/nuttx/net/local/local_send.c
@@ -0,0 +1,80 @@
+/****************************************************************************
+ * net/local/local_send.c
+ *
+ *   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * 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>
+#if defined(CONFIG_NET) && defined(CONFIG_NET_LOCAL)
+
+#include <sys/types.h>
+#include <errno.h>
+
+#include <nuttx/net/net.h>
+
+#include "local/local.h"
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: psock_local_send
+ *
+ * Description:
+ *   Send a local packet as a stream.
+ *
+ * Parameters:
+ *   psock    An instance of the internal socket structure.
+ *   buf      Data to send
+ *   len      Length of data to send
+ *   flags    Send flags
+ *
+ * Return:
+ *   On success, returns the number of characters sent.  On  error,
+ *   -1 is returned, and errno is set appropriately (see send() for the
+ *   list of errno numbers).
+ *
+ ****************************************************************************/
+
+ssize_t psock_local_send(FAR struct socket *psock, FAR const void *buf,
+                         size_t len, int flags)
+{
+#warning Missing logic
+  return -ENOSYS;
+}
+
+#endif /* CONFIG_NET && CONFIG_NET_LOCAL */
diff --git a/nuttx/net/local/local_sendto.c b/nuttx/net/local/local_sendto.c
new file mode 100644
index 000000000..a44333d6f
--- /dev/null
+++ b/nuttx/net/local/local_sendto.c
@@ -0,0 +1,84 @@
+/****************************************************************************
+ * net/local/local_sendto.c
+ *
+ *   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * 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>
+#if defined(CONFIG_NET) && defined(CONFIG_NET_LOCAL)
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <errno.h>
+
+#include <nuttx/net/net.h>
+
+#include "local/local.h"
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Function: psock_sendto
+ *
+ * Description:
+ *   Send a local packet as a datagram.
+ *
+ * Parameters:
+ *   psock    A pointer to a NuttX-specific, internal socket structure
+ *   buf      Data to send
+ *   len      Length of data to send
+ *   flags    Send flags
+ *   to       Address of recipient
+ *   tolen    The length of the address structure
+ *
+ * Returned Value:
+ *   On success, returns the number of characters sent.  On  error,
+ *   -1 is returned, and errno is set appropriately (see sendto() for the
+ *   list of errno numbers).
+ *
+ ****************************************************************************/
+
+ssize_t psock_local_sendto(FAR struct socket *psock, FAR const void *buf,
+                           size_t len, int flags, FAR const struct sockaddr *to,
+                           socklen_t tolen)
+{
+#warning Missing logic
+  return -ENOSYS;
+}
+
+#endif /* CONFIG_NET && CONFIG_NET_LOCAL */