[PATCH 2/3 roland/scandir] Break __scandir_cancel_handler out into its own file.

[Roland McGrath <roland at hack dot frob dot com>]

If there are no objections, I'll commit this shortly.

Thanks,
Roland


2015-05-12  Roland McGrath  <roland@hack.frob.com>

	* dirent/scandirat.c (__scandir_cancel_handler): Function moved ...
	* dirent/scandir-cancel.c: ... to this new file.
	* dirent/Makefile (routines): Add it.
	* dirent/scandirat64.c (SKIP_SCANDIR_CANCEL): Macro removed.
	* sysdeps/unix/sysv/linux/i386/scandir64.c
	(SKIP_SCANDIR_CANCEL): Macro removed.
	* include/dirent.h (__scandir_cancel_handler): Add attribute_hidden.

diff --git a/dirent/Makefile b/dirent/Makefile
index 3c71ccf..2a97649 100644
--- a/dirent/Makefile
+++ b/dirent/Makefile
@@ -27,7 +27,7 @@ routines	:= opendir closedir readdir readdir_r rewinddir \
 		   seekdir telldir scandir alphasort versionsort \
 		   getdents getdents64 dirfd readdir64 readdir64_r scandir64 \
 		   alphasort64 versionsort64 fdopendir \
-		   scandirat scandirat64
+		   scandirat scandirat64 scandir-cancel
 
 tests	   := list tst-seekdir opendir-tst1 bug-readdir1 tst-fdopendir \
 	      tst-fdopendir2 tst-scandir tst-scandir64
diff --git a/dirent/scandir-cancel.c b/dirent/scandir-cancel.c
new file mode 100644
index 0000000..549a4f8
--- /dev/null
+++ b/dirent/scandir-cancel.c
@@ -0,0 +1,31 @@
+/* Cancellation handler used in scandir* implementations.
+   Copyright (C) 1992-2015 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/>.  */
+
+#include <dirent.h>
+
+void
+__scandir_cancel_handler (void *arg)
+{
+  struct scandir_cancel_struct *cp = arg;
+  void **v = cp->v;
+
+  for (size_t i = 0; i < cp->cnt; ++i)
+    free (v[i]);
+  free (v);
+  (void) __closedir (cp->dp);
+}
diff --git a/dirent/scandirat.c b/dirent/scandirat.c
index 004b152..d7ae5e5 100644
--- a/dirent/scandirat.c
+++ b/dirent/scandirat.c
@@ -36,21 +36,6 @@
 # define SCANDIRAT_WEAK_ALIAS
 #endif
 
-#ifndef SKIP_SCANDIR_CANCEL
-void
-__scandir_cancel_handler (void *arg)
-{
-  struct scandir_cancel_struct *cp = arg;
-  size_t i;
-  void **v = cp->v;
-
-  for (i = 0; i < cp->cnt; ++i)
-    free (v[i]);
-  free (v);
-  (void) __closedir (cp->dp);
-}
-#endif
-
 
 int
 SCANDIRAT (dfd, dir, namelist, select, cmp)
diff --git a/dirent/scandirat64.c b/dirent/scandirat64.c
index c9a6186..fcdd1a9 100644
--- a/dirent/scandirat64.c
+++ b/dirent/scandirat64.c
@@ -23,7 +23,6 @@
 #define SCANDIRAT scandirat64
 #define READDIR __readdir64
 #define DIRENT_TYPE struct dirent64
-#define SKIP_SCANDIR_CANCEL 1
 
 #include "scandirat.c"
 
diff --git a/include/dirent.h b/include/dirent.h
index 2e797ae..c50bd23 100644
--- a/include/dirent.h
+++ b/include/dirent.h
@@ -46,9 +46,10 @@ extern int __versionsort64 (const struct dirent64 **a,
 extern DIR *__alloc_dir (int fd, bool close_fd, int flags,
 			 const struct stat64 *statp)
      internal_function;
-extern void __scandir_cancel_handler (void *arg);
 extern __typeof (rewinddir) __rewinddir;
 
+extern void __scandir_cancel_handler (void *arg) attribute_hidden;
+
 libc_hidden_proto (__rewinddir)
 extern __typeof (scandirat) __scandirat;
 libc_hidden_proto (__scandirat)
diff --git a/sysdeps/unix/sysv/linux/i386/scandir64.c b/sysdeps/unix/sysv/linux/i386/scandir64.c
index 6dafa84..824bf84 100644
--- a/sysdeps/unix/sysv/linux/i386/scandir64.c
+++ b/sysdeps/unix/sysv/linux/i386/scandir64.c
@@ -21,7 +21,6 @@
 #define SCANDIRAT scandirat64
 #define READDIR __readdir64
 #define DIRENT_TYPE struct dirent64
-#define SKIP_SCANDIR_CANCEL 1
 
 #include <dirent/scandir.c>