fixed support for 64bit big allocations

[libucw.git] / lib / lfs.h

diff --git a/lib/lfs.h b/lib/lfs.h
index ee9b71b11c3d5f4aa2eeb3e8791b6bf3b0deebc3..3896c0e61d2655d4b1b0224f54a1593ad04495dd 100644 (file)
--- a/lib/lfs.h
+++ b/lib/lfs.h
@@ -1,5 +1,5 @@
 /*
 /*

- *     Sherlock Library -- Large File Support
+ *     UCW Library -- Large File Support

  *
  *     (c) 1999--2002 Martin Mares <mj@ucw.cz>
  *
  *
  *     (c) 1999--2002 Martin Mares <mj@ucw.cz>
  *


@@ -7,8 +7,8 @@
  *     of the GNU Lesser General Public License.
  */
 
  *     of the GNU Lesser General Public License.
  */
 

-#ifndef _SHERLOCK_LFS_H
-#define _SHERLOCK_LFS_H
+#ifndef _UCW_LFS_H
+#define _UCW_LFS_H

 
 #include <fcntl.h>
 #include <unistd.h>
 
 #include <fcntl.h>
 #include <unistd.h>


@@ -23,6 +23,9 @@
 #define sh_mmap(a,l,p,f,d,o) mmap64(a,l,p,f,d,o)
 #define sh_pread pread64
 #define sh_pwrite pwrite64
 #define sh_mmap(a,l,p,f,d,o) mmap64(a,l,p,f,d,o)
 #define sh_pread pread64
 #define sh_pwrite pwrite64

+#define sh_stat stat64
+#define sh_fstat fstat64
+typedef struct stat64 sh_stat_t;

 
 #else  /* !CONFIG_LFS */
 
 
 #else  /* !CONFIG_LFS */
 


@@ -32,9 +35,29 @@
 #define sh_mmap(a,l,p,f,d,o) mmap(a,l,p,f,d,o)
 #define sh_pread pread
 #define sh_pwrite pwrite
 #define sh_mmap(a,l,p,f,d,o) mmap(a,l,p,f,d,o)
 #define sh_pread pread
 #define sh_pwrite pwrite

+#define sh_stat stat
+#define sh_fstat fstat
+typedef struct stat sh_stat_t;

 
 #endif /* !CONFIG_LFS */
 
 
 #endif /* !CONFIG_LFS */
 

-#define SHERLOCK_HAVE_PREAD
-
-#endif /* !_SHERLOCK_LFS_H */
+#if defined(_POSIX_SYNCHRONIZED_IO) && (_POSIX_SYNCHRONIZED_IO > 0)
+#define sh_fdatasync fdatasync
+#else
+#define sh_fdatasync fsync
+#endif
+
+#define HAVE_PREAD
+
+static inline sh_off_t
+sh_file_size(byte *name)
+{
+  int fd = sh_open(name, O_RDONLY);
+  if (fd < 0)
+    die("Cannot open %s: %m", name);
+  sh_off_t len = sh_seek(fd, 0, SEEK_END);
+  close(fd);
+  return len;
+}
+
+#endif /* !_UCW_LFS_H */