Prepare for radical source tree reorganization.zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 245 insertions, 0 deletions

diff --git a/REORG.TODO/rt/aio.h b/REORG.TODO/rt/aio.h
new file mode 100644
index 0000000000..d72ad5d97d
--- /dev/null
+++ b/REORG.TODO/rt/aio.h
@@ -0,0 +1,245 @@
+/* Copyright (C) 1996-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/*
+ * ISO/IEC 9945-1:1996 6.7: Asynchronous Input and Output
+ */
+
+#ifndef _AIO_H
+#define _AIO_H	1
+
+#include <features.h>
+#include <sys/types.h>
+#include <bits/types/sigevent_t.h>
+#include <bits/sigevent-consts.h>
+#include <bits/types/struct_timespec.h>
+
+__BEGIN_DECLS
+
+/* Asynchronous I/O control block.  */
+struct aiocb
+{
+  int aio_fildes;		/* File desriptor.  */
+  int aio_lio_opcode;		/* Operation to be performed.  */
+  int aio_reqprio;		/* Request priority offset.  */
+  volatile void *aio_buf;	/* Location of buffer.  */
+  size_t aio_nbytes;		/* Length of transfer.  */
+  struct sigevent aio_sigevent;	/* Signal number and value.  */
+
+  /* Internal members.  */
+  struct aiocb *__next_prio;
+  int __abs_prio;
+  int __policy;
+  int __error_code;
+  __ssize_t __return_value;
+
+#ifndef __USE_FILE_OFFSET64
+  __off_t aio_offset;		/* File offset.  */
+  char __pad[sizeof (__off64_t) - sizeof (__off_t)];
+#else
+  __off64_t aio_offset;		/* File offset.  */
+#endif
+  char __glibc_reserved[32];
+};
+
+/* The same for the 64bit offsets.  Please note that the members aio_fildes
+   to __return_value have to be the same in aiocb and aiocb64.  */
+#ifdef __USE_LARGEFILE64
+struct aiocb64
+{
+  int aio_fildes;		/* File desriptor.  */
+  int aio_lio_opcode;		/* Operation to be performed.  */
+  int aio_reqprio;		/* Request priority offset.  */
+  volatile void *aio_buf;	/* Location of buffer.  */
+  size_t aio_nbytes;		/* Length of transfer.  */
+  struct sigevent aio_sigevent;	/* Signal number and value.  */
+
+  /* Internal members.  */
+  struct aiocb *__next_prio;
+  int __abs_prio;
+  int __policy;
+  int __error_code;
+  __ssize_t __return_value;
+
+  __off64_t aio_offset;		/* File offset.  */
+  char __glibc_reserved[32];
+};
+#endif
+
+
+#ifdef __USE_GNU
+/* To customize the implementation one can use the following struct.
+   This implementation follows the one in Irix.  */
+struct aioinit
+  {
+    int aio_threads;		/* Maximal number of threads.  */
+    int aio_num;		/* Number of expected simultanious requests. */
+    int aio_locks;		/* Not used.  */
+    int aio_usedba;		/* Not used.  */
+    int aio_debug;		/* Not used.  */
+    int aio_numusers;		/* Not used.  */
+    int aio_idle_time;		/* Number of seconds before idle thread
+				   terminates.  */
+    int aio_reserved;
+  };
+#endif
+
+
+/* Return values of cancelation function.  */
+enum
+{
+  AIO_CANCELED,
+#define AIO_CANCELED AIO_CANCELED
+  AIO_NOTCANCELED,
+#define AIO_NOTCANCELED AIO_NOTCANCELED
+  AIO_ALLDONE
+#define AIO_ALLDONE AIO_ALLDONE
+};
+
+
+/* Operation codes for `aio_lio_opcode'.  */
+enum
+{
+  LIO_READ,
+#define LIO_READ LIO_READ
+  LIO_WRITE,
+#define LIO_WRITE LIO_WRITE
+  LIO_NOP
+#define LIO_NOP LIO_NOP
+};
+
+
+/* Synchronization options for `lio_listio' function.  */
+enum
+{
+  LIO_WAIT,
+#define LIO_WAIT LIO_WAIT
+  LIO_NOWAIT
+#define LIO_NOWAIT LIO_NOWAIT
+};
+
+
+/* Allow user to specify optimization.  */
+#ifdef __USE_GNU
+extern void aio_init (const struct aioinit *__init) __THROW __nonnull ((1));
+#endif
+
+
+#ifndef __USE_FILE_OFFSET64
+/* Enqueue read request for given number of bytes and the given priority.  */
+extern int aio_read (struct aiocb *__aiocbp) __THROW __nonnull ((1));
+/* Enqueue write request for given number of bytes and the given priority.  */
+extern int aio_write (struct aiocb *__aiocbp) __THROW __nonnull ((1));
+
+/* Initiate list of I/O requests.  */
+extern int lio_listio (int __mode,
+		       struct aiocb *const __list[__restrict_arr],
+		       int __nent, struct sigevent *__restrict __sig)
+  __THROW __nonnull ((2));
+
+/* Retrieve error status associated with AIOCBP.  */
+extern int aio_error (const struct aiocb *__aiocbp) __THROW __nonnull ((1));
+/* Return status associated with AIOCBP.  */
+extern __ssize_t aio_return (struct aiocb *__aiocbp) __THROW __nonnull ((1));
+
+/* Try to cancel asynchronous I/O requests outstanding against file
+   descriptor FILDES.  */
+extern int aio_cancel (int __fildes, struct aiocb *__aiocbp) __THROW;
+
+/* Suspend calling thread until at least one of the asynchronous I/O
+   operations referenced by LIST has completed.
+
+   This function is a cancellation point and therefore not marked with
+   __THROW.  */
+extern int aio_suspend (const struct aiocb *const __list[], int __nent,
+			const struct timespec *__restrict __timeout)
+  __nonnull ((1));
+
+/* Force all operations associated with file desriptor described by
+   `aio_fildes' member of AIOCBP.  */
+extern int aio_fsync (int __operation, struct aiocb *__aiocbp)
+  __THROW __nonnull ((2));
+#else
+# ifdef __REDIRECT_NTH
+extern int __REDIRECT_NTH (aio_read, (struct aiocb *__aiocbp), aio_read64)
+  __nonnull ((1));
+extern int __REDIRECT_NTH (aio_write, (struct aiocb *__aiocbp), aio_write64)
+  __nonnull ((1));
+
+extern int __REDIRECT_NTH (lio_listio,
+			   (int __mode,
+			    struct aiocb *const __list[__restrict_arr],
+			    int __nent, struct sigevent *__restrict __sig),
+			   lio_listio64) __nonnull ((2));
+
+extern int __REDIRECT_NTH (aio_error, (const struct aiocb *__aiocbp),
+			   aio_error64) __nonnull ((1));
+extern __ssize_t __REDIRECT_NTH (aio_return, (struct aiocb *__aiocbp),
+				 aio_return64) __nonnull ((1));
+
+extern int __REDIRECT_NTH (aio_cancel,
+			   (int __fildes, struct aiocb *__aiocbp),
+			   aio_cancel64);
+
+extern int __REDIRECT_NTH (aio_suspend,
+			   (const struct aiocb *const __list[], int __nent,
+			    const struct timespec *__restrict __timeout),
+			   aio_suspend64) __nonnull ((1));
+
+extern int __REDIRECT_NTH (aio_fsync,
+			   (int __operation, struct aiocb *__aiocbp),
+			   aio_fsync64) __nonnull ((2));
+
+# else
+#  define aio_read aio_read64
+#  define aio_write aio_write64
+#  define lio_listio lio_listio64
+#  define aio_error aio_error64
+#  define aio_return aio_return64
+#  define aio_cancel aio_cancel64
+#  define aio_suspend aio_suspend64
+#  define aio_fsync aio_fsync64
+# endif
+#endif
+
+#ifdef __USE_LARGEFILE64
+extern int aio_read64 (struct aiocb64 *__aiocbp) __THROW __nonnull ((1));
+extern int aio_write64 (struct aiocb64 *__aiocbp) __THROW __nonnull ((1));
+
+extern int lio_listio64 (int __mode,
+			 struct aiocb64 *const __list[__restrict_arr],
+			 int __nent, struct sigevent *__restrict __sig)
+  __THROW __nonnull ((2));
+
+extern int aio_error64 (const struct aiocb64 *__aiocbp)
+  __THROW __nonnull ((1));
+extern __ssize_t aio_return64 (struct aiocb64 *__aiocbp)
+  __THROW __nonnull ((1));
+
+extern int aio_cancel64 (int __fildes, struct aiocb64 *__aiocbp) __THROW;
+
+extern int aio_suspend64 (const struct aiocb64 *const __list[], int __nent,
+			  const struct timespec *__restrict __timeout)
+  __THROW __nonnull ((1));
+
+extern int aio_fsync64 (int __operation, struct aiocb64 *__aiocbp)
+  __THROW __nonnull ((2));
+#endif
+
+__END_DECLS
+
+#endif /* aio.h */