* Makefile.in (PLATFORM_DIR): add a variable for `win32` directory.

* Makefile.in (clean-platform): add new target.
  It cleans `win32` directory.

* common.mk (clean): add a dependency for `win32` directory.
* common.mk (distclean): ditto.
* common.mk (distclean-platform): add new target.
  It cleans `win32` directory.
* common.mk ($(PLATFORM_D)): add new target to make `win32` directory.
* common.mk (win32/win32.$(OBJEXT)): move win32.o into `win32`
  directory.
* common.mk (win32/file.$(OBJEXT)): add new target for win32/file.c.

* configure.in: move win32.o into `win32` directory and add
  win32/file.o to MISSING.

* file.c (file_load_ok, rb_file_load_ok): replace static
  file_load_ok() with public rb_file_load_ok().
  It's to link Windows implementation in win32/file.c.
* file.c (rb_find_file_ext_safe): ditto.
* file.c (rb_find_file_safe): ditto.

* win32/file.c (rb_file_load_ok): new file. Add Windows specific
  optimized implementation of rb_file_load_ok(). We created a
  separated file to avoid too many #ifdef macro which is unreadable.

* win32/Makefile.sub (PLATFORM_DIR): add a variable for `win32`
  directory.
* win32/Makefile.sub (MISSING): move win32.obj into `win32`
  directory and add win32/file.obj to MISSING.
* win32/Makefile.sub (MAKEDIRS): replace MINIRUBY with BASERUBY.
  It's because miniruby doesn't exist when making `win32` directory.
* win32/Makefile.sub (clean-platform): add new target to clean `win32`
  directory.
* win32/Makefile.sub ({$(srcdir)}.c{}.obj): make it not match
  win32/file.c to build properly.
* win32/Makefile.sub (win32/win32.$(OBJEXT)): move win32.obj into
 `win32` directory.

  Patch created with Luis Lavena.
  [ruby-core:42480] [Feature #5999]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@34849 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 25 insertions, 0 deletions

diff --git a/win32/file.c b/win32/file.c
new file mode 100644
index 0000000000..cd89da24f5
--- /dev/null
+++ b/win32/file.c
@@ -0,0 +1,25 @@
+#include "ruby/ruby.h"
+#include <winbase.h>
+
+int
+rb_file_load_ok(const char *path)
+{
+     int ret = 1;
+     DWORD attr = GetFileAttributes(path);
+     if (attr == INVALID_FILE_ATTRIBUTES ||
+	attr & FILE_ATTRIBUTE_DIRECTORY) {
+	ret = 0;
+     }
+     else {
+	HANDLE h = CreateFile(path, GENERIC_READ,
+	     FILE_SHARE_READ | FILE_SHARE_WRITE,
+	     NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+	if (h != INVALID_HANDLE_VALUE) {
+	     CloseHandle(h);
+	}
+	else {
+	     ret = 0;
+	}
+     }
+     return ret;
+}