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authorZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
committerZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
commit5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch)
tree4470480d904b65cf14ca524f96f79eca818c3eaf /REORG.TODO/sysdeps/unix/sysv/linux/generic/bits/statfs.h
parent199fc19d3aaaf57944ef036e15904febe877fc93 (diff)
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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).
Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/generic/bits/statfs.h')
-rw-r--r--REORG.TODO/sysdeps/unix/sysv/linux/generic/bits/statfs.h86
1 files changed, 86 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/generic/bits/statfs.h b/REORG.TODO/sysdeps/unix/sysv/linux/generic/bits/statfs.h
new file mode 100644
index 0000000000..8dc8f0aa79
--- /dev/null
+++ b/REORG.TODO/sysdeps/unix/sysv/linux/generic/bits/statfs.h
@@ -0,0 +1,86 @@
+/* Copyright (C) 2011-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   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/>.  */
+
+#ifndef _SYS_STATFS_H
+# error "Never include <bits/statfs.h> directly; use <sys/statfs.h> instead."
+#endif
+
+#include <endian.h>
+#include <bits/types.h>
+#include <bits/wordsize.h>
+
+/* 64-bit libc uses the kernel's 'struct statfs', accessed via the
+   statfs() syscall; 32-bit libc uses the kernel's 'struct statfs64'
+   and accesses it via the statfs64() syscall.  All the various
+   APIs offered by libc use the kernel shape for their struct statfs
+   structure; the only difference is that 32-bit programs not
+   using __USE_FILE_OFFSET64 only see the low 32 bits of some
+   of the fields (the __fsblkcnt_t and __fsfilcnt_t fields).  */
+
+#if defined __USE_FILE_OFFSET64
+# define __field64(type, type64, name) type64 name
+#elif __WORDSIZE == 64
+# define __field64(type, type64, name) type name
+#elif __BYTE_ORDER == __LITTLE_ENDIAN
+# define __field64(type, type64, name) \
+  type name __attribute__((__aligned__ (__alignof__ (type64)))); int __##name##_pad
+#else
+# define __field64(type, type64, name) \
+  int __##name##_pad __attribute__((__aligned__ (__alignof__ (type64)))); type name
+#endif
+
+struct statfs
+  {
+    __SWORD_TYPE f_type;
+    __SWORD_TYPE f_bsize;
+    __field64(__fsblkcnt_t, __fsblkcnt64_t, f_blocks);
+    __field64(__fsblkcnt_t, __fsblkcnt64_t, f_bfree);
+    __field64(__fsblkcnt_t, __fsblkcnt64_t, f_bavail);
+    __field64(__fsfilcnt_t, __fsfilcnt64_t, f_files);
+    __field64(__fsfilcnt_t, __fsfilcnt64_t, f_ffree);
+    __fsid_t f_fsid;
+    __SWORD_TYPE f_namelen;
+    __SWORD_TYPE f_frsize;
+    __SWORD_TYPE f_flags;
+    __SWORD_TYPE f_spare[4];
+  };
+
+#undef __field64
+
+#ifdef __USE_LARGEFILE64
+struct statfs64
+  {
+    __SWORD_TYPE f_type;
+    __SWORD_TYPE f_bsize;
+    __fsblkcnt64_t f_blocks;
+    __fsblkcnt64_t f_bfree;
+    __fsblkcnt64_t f_bavail;
+    __fsfilcnt64_t f_files;
+    __fsfilcnt64_t f_ffree;
+    __fsid_t f_fsid;
+    __SWORD_TYPE f_namelen;
+    __SWORD_TYPE f_frsize;
+    __SWORD_TYPE f_flags;
+    __SWORD_TYPE f_spare[4];
+  };
+#endif
+
+/* Tell code we have these members.  */
+#define _STATFS_F_NAMELEN
+#define _STATFS_F_FRSIZE
+#define _STATFS_F_FLAGS