1 files changed, 127 insertions, 127 deletions
diff --git a/nuttx/mm/shm/shmat.c b/nuttx/mm/shm/shmat.c
index 4f4cf89e9..a76327e13 100755
--- a/nuttx/mm/shm/shmat.c
+++ b/nuttx/mm/shm/shmat.c
@@ -1,127 +1,127 @@
-/****************************************************************************
- * mm/shm/shmat.c
- *
- *   Copyright (C) 2014 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>
-
-#include <sys/shm.h>
-#include <errno.h>
-
-#ifdef CONFIG_MM_SHM
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: shmat
- *
- * Description:
- *   The shmat() function attaches the shared memory segment associated with
- *   the shared memory identifier specified by shmid to the address space of
- *   the calling process. The segment is attached at the address specified
- *   by one of the following criteria:
- *
- *     - If shmaddr is a null pointer, the segment is attached at the first
- *       available address as selected by the system.
- *     - If shmaddr is not a null pointer and (shmflg & SHM_RND) is non-
- *       zero, the segment is attached at the address given by
- *       (shmaddr - ((uintptr_t)shmaddr % SHMLBA)).
- *     - If shmaddr is not a null pointer and (shmflg & SHM_RND) is 0, the
- *       segment is attached at the address given by shmaddr.
- *     - The segment is attached for reading if (shmflg & SHM_RDONLY) is
- *       non-zero and the calling process has read permission; otherwise, if
- *       it is 0 and the calling process has read and write permission, the
- *       segment is attached for reading and writing.
- *
- * Input Parameters:
- *   shmid  - Shared memory identifier
- *   smaddr - Determines mapping of the shared memory region
- *   shmflg - See SHM_* definitions in include/sys/shm.h.  Only SHM_RDONLY
- *            and SHM_RND are supported.
- *
- * Returned Value:
- *   Upon successful completion, shmat() will increment the value of
- *   shm_nattch in the data structure associated with the shared memory ID
- *   of the attached shared memory segment and return the segment's start address.
- *
- *   Otherwise, the shared memory segment will not be attached, shmat() will
- *   return -1, and errno will be set to indicate the error.
- *
- *     - EACCES
- *       Operation permission is denied to the calling process
- *     - EINVAL
- *       The value of shmid is not a valid shared memory identifier, the
- *       shmaddr is not a null pointer, and the value of
- *       (shmaddr -((uintptr_t)shmaddr % SHMLBA)) is an illegal address for
- *       attaching shared memory; or the shmaddr is not a null pointer,
- *       (shmflg & SHM_RND) is 0, and the value of shmaddr is an illegal
- *       address for attaching shared memory.
- *     - EMFILE
- *       The number of shared memory segments attached to the calling
- *       process would exceed the system-imposed limit.
- *     - ENOMEM
- *       The available data space is not large enough to accommodate the
- *       shared memory segment.
- *
- ****************************************************************************/
-
-FAR void *shmat(int shmid, FAR const void *shmaddr, int shmflg)
-{
-#warning Not implemented
-  set_errno(ENOSYS);
-  return (FAR void *)ERROR;
-}
-
-#endif /* CONFIG_MM_SHM */
+/****************************************************************************
+ * mm/shm/shmat.c
+ *
+ *   Copyright (C) 2014 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>
+
+#include <sys/shm.h>
+#include <errno.h>
+
+#ifdef CONFIG_MM_SHM
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: shmat
+ *
+ * Description:
+ *   The shmat() function attaches the shared memory segment associated with
+ *   the shared memory identifier specified by shmid to the address space of
+ *   the calling process. The segment is attached at the address specified
+ *   by one of the following criteria:
+ *
+ *     - If shmaddr is a null pointer, the segment is attached at the first
+ *       available address as selected by the system.
+ *     - If shmaddr is not a null pointer and (shmflg & SHM_RND) is non-
+ *       zero, the segment is attached at the address given by
+ *       (shmaddr - ((uintptr_t)shmaddr % SHMLBA)).
+ *     - If shmaddr is not a null pointer and (shmflg & SHM_RND) is 0, the
+ *       segment is attached at the address given by shmaddr.
+ *     - The segment is attached for reading if (shmflg & SHM_RDONLY) is
+ *       non-zero and the calling process has read permission; otherwise, if
+ *       it is 0 and the calling process has read and write permission, the
+ *       segment is attached for reading and writing.
+ *
+ * Input Parameters:
+ *   shmid  - Shared memory identifier
+ *   smaddr - Determines mapping of the shared memory region
+ *   shmflg - See SHM_* definitions in include/sys/shm.h.  Only SHM_RDONLY
+ *            and SHM_RND are supported.
+ *
+ * Returned Value:
+ *   Upon successful completion, shmat() will increment the value of
+ *   shm_nattch in the data structure associated with the shared memory ID
+ *   of the attached shared memory segment and return the segment's start address.
+ *
+ *   Otherwise, the shared memory segment will not be attached, shmat() will
+ *   return -1, and errno will be set to indicate the error.
+ *
+ *     - EACCES
+ *       Operation permission is denied to the calling process
+ *     - EINVAL
+ *       The value of shmid is not a valid shared memory identifier, the
+ *       shmaddr is not a null pointer, and the value of
+ *       (shmaddr -((uintptr_t)shmaddr % SHMLBA)) is an illegal address for
+ *       attaching shared memory; or the shmaddr is not a null pointer,
+ *       (shmflg & SHM_RND) is 0, and the value of shmaddr is an illegal
+ *       address for attaching shared memory.
+ *     - EMFILE
+ *       The number of shared memory segments attached to the calling
+ *       process would exceed the system-imposed limit.
+ *     - ENOMEM
+ *       The available data space is not large enough to accommodate the
+ *       shared memory segment.
+ *
+ ****************************************************************************/
+
+FAR void *shmat(int shmid, FAR const void *shmaddr, int shmflg)
+{
+#warning Not implemented
+  set_errno(ENOSYS);
+  return (FAR void *)ERROR;
+}
+
+#endif /* CONFIG_MM_SHM */