2011-12-27 21:18:07 +00:00
commit 9f98ea7e22
192 changed files with 77747 additions and 0 deletions
@@ -0,0 +1,69 @@
+// File: crn_win32_file_utils.cpp
+// See Copyright Notice and license at the end of inc/crnlib.h
+#include "crn_core.h"
+#include "crn_win32_file_utils.h"
+#include "crn_winhdr.h"
+
+namespace crnlib
+{
+   bool win32_file_utils::does_file_exist(const wchar_t* pFilename)
+   {
+      const DWORD fullAttributes = GetFileAttributesW(pFilename);
+
+      if (fullAttributes == INVALID_FILE_ATTRIBUTES) 
+         return false;
+
+      if (fullAttributes & FILE_ATTRIBUTE_DIRECTORY)
+         return false;
+
+      return true;
+   }
+
+   bool win32_file_utils::does_dir_exist(const wchar_t* pDir)
+   {
+      //-- Get the file attributes.
+      DWORD fullAttributes = GetFileAttributesW(pDir);
+
+      if (fullAttributes == INVALID_FILE_ATTRIBUTES)
+         return false;
+
+      if (fullAttributes & FILE_ATTRIBUTE_DIRECTORY)
+         return true;
+
+      return false;
+   }
+
+   bool win32_file_utils::get_file_size(const wchar_t* pFilename, uint64& file_size)
+   {
+      file_size = 0;
+
+      WIN32_FILE_ATTRIBUTE_DATA attr;
+
+      if (0 == GetFileAttributesExW(pFilename, GetFileExInfoStandard, &attr))
+         return false;
+
+      if (attr.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
+         return false;
+
+      file_size = static_cast<uint64>(attr.nFileSizeLow) | (static_cast<uint64>(attr.nFileSizeHigh) << 32U);
+
+      return true;
+   }   
+   
+   bool win32_file_utils::get_file_size(const wchar_t* pFilename, uint32& file_size)
+   {
+      uint64 file_size64;
+      if (!get_file_size(pFilename, file_size64))
+      {
+         file_size = 0;
+         return false;
+      }
+
+      if (file_size64 > UINT32_MAX)
+         file_size64 = UINT32_MAX;
+
+      file_size = static_cast<uint32>(file_size64);
+      return true;
+   }
+ 
+} // namespace crnlib