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authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /io/lockf.c
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
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(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'io/lockf.c')
-rw-r--r--io/lockf.c74
1 files changed, 0 insertions, 74 deletions
diff --git a/io/lockf.c b/io/lockf.c
deleted file mode 100644
index 7b23f66bc9..0000000000
--- a/io/lockf.c
+++ /dev/null
@@ -1,74 +0,0 @@
-/* Copyright (C) 1994,1996,1997,1998,2000,2003 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, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#include <sys/types.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <string.h>
-
-/* lockf is a simplified interface to fcntl's locking facilities.  */
-
-int
-lockf (int fd, int cmd, off_t len)
-{
-  struct flock fl;
-
-  memset ((char *) &fl, '\0', sizeof (fl));
-
-  /* lockf is always relative to the current file position.  */
-  fl.l_whence = SEEK_CUR;
-  fl.l_start = 0;
-  fl.l_len = len;
-
-  switch (cmd)
-    {
-    case F_TEST:
-      /* Test the lock: return 0 if FD is unlocked or locked by this process;
-	 return -1, set errno to EACCES, if another process holds the lock.  */
-      fl.l_type = F_RDLCK;
-      if (__fcntl (fd, F_GETLK, &fl) < 0)
-	return -1;
-      if (fl.l_type == F_UNLCK || fl.l_pid == __getpid ())
-	return 0;
-      __set_errno (EACCES);
-      return -1;
-
-    case F_ULOCK:
-      fl.l_type = F_UNLCK;
-      cmd = F_SETLK;
-      break;
-    case F_LOCK:
-      fl.l_type = F_WRLCK;
-      cmd = F_SETLKW;
-      break;
-    case F_TLOCK:
-      fl.l_type = F_WRLCK;
-      cmd = F_SETLK;
-      break;
-
-    default:
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  /* lockf() is a cancellation point but so is fcntl() if F_SETLKW is
-     used.  Therefore we don't have to care about cancellation here,
-     the fcntl() function will take care of it.  */
-  return __fcntl (fd, cmd, &fl);
-}