install-reloc: Support multi-binary installation.

[gnulib.git] / lib / flock.c

diff --git a/lib/flock.c b/lib/flock.c
index 5aa7690..f15fe12 100644 (file)
--- a/lib/flock.c
+++ b/lib/flock.c
@@ -6,7 +6,7 @@
 
    Written by Richard W.M. Jones <rjones.at.redhat.com>
 
-   Copyright (C) 2008 Free Software Foundation, Inc.
+   Copyright (C) 2008-2013 Free Software Foundation, Inc.
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
@@ -18,7 +18,7 @@
    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 General Public License
+   You should have received a copy of the GNU Lesser General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <config.h>
@@ -26,14 +26,14 @@
 
 #if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
 
-/* _get_osfhandle */
-#include <io.h>
-
 /* LockFileEx */
-#define WIN32_LEAN_AND_MEAN
-#include <windows.h>
+# define WIN32_LEAN_AND_MEAN
+# include <windows.h>
 
-#include <errno.h>
+# include <errno.h>
+
+/* _get_osfhandle */
+# include "msvc-nothrow.h"
 
 /* Determine the current size of a file.  Because the other braindead
  * APIs we'll call need lower/upper 32 bit pairs, keep the file size
@@ -47,9 +47,9 @@ file_size (HANDLE h, DWORD * lower, DWORD * upper)
 }
 
 /* LOCKFILE_FAIL_IMMEDIATELY is undefined on some Windows systems. */
-#ifndef LOCKFILE_FAIL_IMMEDIATELY
-# define LOCKFILE_FAIL_IMMEDIATELY 1
-#endif
+# ifndef LOCKFILE_FAIL_IMMEDIATELY
+#  define LOCKFILE_FAIL_IMMEDIATELY 1
+# endif
 
 /* Acquire a lock. */
 static BOOL
@@ -130,27 +130,27 @@ flock (int fd, int operation)
     {
       DWORD err = GetLastError ();
       switch (err)
-       {
-         /* This means someone else is holding a lock. */
-       case ERROR_LOCK_VIOLATION:
-         errno = EAGAIN;
-         break;
-
-         /* Out of memory. */
-       case ERROR_NOT_ENOUGH_MEMORY:
-         errno = ENOMEM;
-         break;
-
-       case ERROR_BAD_COMMAND:
-         errno = EINVAL;
-         break;
-
-         /* Unlikely to be other errors, but at least don't lose the
-          * error code.
-          */
-       default:
-         errno = err;
-       }
+        {
+          /* This means someone else is holding a lock. */
+        case ERROR_LOCK_VIOLATION:
+          errno = EAGAIN;
+          break;
+
+          /* Out of memory. */
+        case ERROR_NOT_ENOUGH_MEMORY:
+          errno = ENOMEM;
+          break;
+
+        case ERROR_BAD_COMMAND:
+          errno = EINVAL;
+          break;
+
+          /* Unlikely to be other errors, but at least don't lose the
+           * error code.
+           */
+        default:
+          errno = err;
+        }
 
       return -1;
     }
@@ -160,16 +160,17 @@ flock (int fd, int operation)
 
 #else /* !Windows */
 
-#ifdef HAVE_FLOCK_L_TYPE
+# ifdef HAVE_STRUCT_FLOCK_L_TYPE
 /* We know how to implement flock in terms of fcntl. */
 
-#ifdef HAVE_FCNTL_H
-#include <fcntl.h>
-#endif
+#  include <fcntl.h>
+
+#  ifdef HAVE_UNISTD_H
+#   include <unistd.h>
+#  endif
 
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
+#  include <errno.h>
+#  include <string.h>
 
 int
 flock (int fd, int operation)
@@ -210,10 +211,10 @@ flock (int fd, int operation)
   return r;
 }
 
-#else /* !HAVE_FLOCK_L_TYPE */
+# else /* !HAVE_STRUCT_FLOCK_L_TYPE */
 
-#error "This platform lacks flock function, and Gnulib doesn't provide a replacement. This is a bug in Gnulib."
+#  error "This platform lacks flock function, and Gnulib doesn't provide a replacement. This is a bug in Gnulib."
 
-#endif /* !HAVE_FLOCK_L_TYPE */
+# endif /* !HAVE_STRUCT_FLOCK_L_TYPE */
 
 #endif /* !Windows */