Add aio.h header file

1 files changed, 137 insertions, 0 deletions

diff --git a/nuttx/include/aio.h b/nuttx/include/aio.h
new file mode 100644
index 0000000000..f945cd717c
--- /dev/null
+++ b/nuttx/include/aio.h
@@ -0,0 +1,137 @@
+/****************************************************************************
+ * include/aio.h
+ *
+ *   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.
+ *
+ ****************************************************************************/
+
+#ifndef __INCLUDE_AIO_H
+#define __INCLUDE_AIO_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+#include <signal.h>
+#include <time.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+/* aio_cancel return values
+ *
+ * AIO_ALLDONE     - Indicates that none of the requested operations could
+ *                   be cancelled since they are already complete.
+ * AIO_CANCELED    - Indicates that all requested operations have been
+ *                   cancelled.
+ * AIO_NOTCANCELED - Indicates that some of the requested operations could
+ *                   not be cancelled since they are in progress.
+ */
+
+#define AIO_CANCELED    0
+#define AIO_ALLDONE     1
+#define AIO_NOTCANCELED 2
+
+/* lio_listio element operations
+ *
+ * LIO_NOP         - Indicates that no transfer is requested.
+ * LIO_READ        - Requests a read operation.
+ * LIO_WRITE       - Requests a write operation.
+ */
+
+#define LIO_NOP         0
+#define LIO_READ        1
+#define LIO_WRITE       2
+
+/* lio_listio modes
+ *
+ * LIO_NOWAIT      - Indicates that the calling thread is to continue
+ *                   execution while the lio_listio() operation is being
+ *                   performed, and no notification is given when the
+ *                   operation is complete.
+ * LIO_WAIT        - Indicates that the calling thread is to suspend until
+ *                   the lio_listio() operation is complete.
+ */
+
+#define LIO_NOWAIT      0
+#define LIO_WAIT        1
+
+/****************************************************************************
+ * Type Definitions
+ ****************************************************************************/
+
+struct aiocb
+{
+  struct sigevent aio_sigevent;  /* Signal number and value */
+  FAR volatile void *aio_buf;    /* Location of buffer */
+  off_t aio_offset;              /* File offset */
+  size_t aio_nbytes;             /* Length of transfer */
+  int aio_fildes;                /* File descriptor */
+  int aio_reqprio;               /* Request priority offset */
+  int aio_lio_opcode;            /* Operation to be performed */
+};
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+#ifdef __cplusplus
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+int aio_cancel(int, FAR struct aiocb *aiocbp);
+int aio_error(FAR const struct aiocb *aiocbp);
+int aio_fsync(int, FAR struct aiocb *aiocbp);
+int aio_read(FAR struct aiocb *aiocbp);
+ssize_t aio_return(FAR struct aiocb *aiocbp);
+int aio_suspend(FAR const struct aiocb *const list[], int nent,
+                FAR const struct timespec *timeout);
+int aio_write(FAR struct aiocb *aiocbp);
+int lio_listio(int mode, FAR struct aiocb *const list[], int nent,
+               FAR struct sigevent *sig);
+
+#undef EXTERN
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __INCLUDE_AIO_H */