1 files changed, 43 insertions, 0 deletions
diff --git a/support/win32/mmap.c b/support/win32/mmap.c
new file mode 100644
index 00000000..008ffa66
--- /dev/null
+++ b/support/win32/mmap.c
@@ -0,0 +1,43 @@
+#include <windows.h>
+#include "sys/mman.h"
+
+void * mmap_readonly_win32( const char* name, long* map_handle_ptr, long* map_file_ptr )
+{
+    void * mapped_ptr = NULL;
+#if defined(__CEGCC__)
+
+    wchar_t filename[MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, name, strlen(name), 0, 0)];
+    MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, name, strlen(name), filename, wcslen(filename)) ;
+
+    HANDLE hFile = CreateFile (filename, GENERIC_READ, FILE_SHARE_READ,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);
+#else
+    HANDLE hFile = CreateFile (name, GENERIC_READ, FILE_SHARE_READ,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);
+#endif
+    *map_file_ptr = (long)hFile;
+    *map_handle_ptr = 0;
+
+    if ( hFile != HFILE_ERROR )
+    {
+        HANDLE hMapping = CreateFileMapping( (HANDLE)hFile, NULL, PAGE_READONLY, 0, 0, NULL);
+        mapped_ptr = MapViewOfFile(hMapping, FILE_MAP_READ, 0 , 0, 0 );
+        *map_handle_ptr = (long)hMapping;
+    }
+
+    return mapped_ptr;
+}
+
+void mmap_unmap_win32( void* mem_ptr, long map_handle, long map_file )
+{
+    if ( mem_ptr != NULL )
+    {
+        UnmapViewOfFile( mem_ptr );
+    }
+    if ( map_handle != 0)
+    {
+        CloseHandle( (HANDLE)map_handle );
+    }
+    if ( map_file != 0  )
+    {
+        CloseHandle( (HANDLE)map_file );
+    }
+}