[Qemu-devel] qemu qemu-img.c

[Fabrice Bellard]

CVSROOT:        /sources/qemu
Module name:    qemu
Changes by:     Fabrice Bellard <bellard>       06/06/14 15:32:10

Modified files:
        .              : qemu-img.c 

Log message:
        show real allocated disk image size on Windows (Frediano Ziglio)

CVSWeb URLs:
http://cvs.savannah.gnu.org/viewcvs/qemu/qemu-img.c?cvsroot=qemu&r1=1.8&r2=1.9

Patches:
Index: qemu-img.c
===================================================================
RCS file: /sources/qemu/qemu/qemu-img.c,v
retrieving revision 1.8
retrieving revision 1.9
diff -u -b -r1.8 -r1.9
--- qemu-img.c  24 Jul 2005 18:44:55 -0000      1.8
+++ qemu-img.c  14 Jun 2006 15:32:10 -0000      1.9
@@ -23,6 +23,10 @@
  */
 #include "vl.h"
 
+#ifdef _WIN32
+#include <windows.h>
+#endif
+
 void *get_mmap_addr(unsigned long size)
 {
     return NULL;
@@ -598,7 +602,19 @@
 #ifdef _WIN32
 static int64_t get_allocated_file_size(const char *filename)
 {
+    typedef DWORD (WINAPI * get_compressed_t)(const char *filename, DWORD 
*high);
+    get_compressed_t get_compressed;
     struct _stati64 st;
+
+    /* WinNT support GetCompressedFileSize to determine allocate size */
+    get_compressed = (get_compressed_t) 
GetProcAddress(GetModuleHandle("kernel32"), "GetCompressedFileSizeA");
+    if (get_compressed) {
+       DWORD high, low;
+       low = get_compressed(filename, &high);
+       if (low != 0xFFFFFFFFlu || GetLastError() == NO_ERROR)
+           return (((int64_t) high) << 32) + low;
+    }
+
     if (_stati64(filename, &st) < 0) 
         return -1;
     return st.st_size;