diff options
Diffstat (limited to 'winsup/cygwin/fhandler_disk_file.cc')
| -rw-r--r-- | winsup/cygwin/fhandler_disk_file.cc | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/winsup/cygwin/fhandler_disk_file.cc b/winsup/cygwin/fhandler_disk_file.cc index 27e621708..f0971e9d2 100644 --- a/winsup/cygwin/fhandler_disk_file.cc +++ b/winsup/cygwin/fhandler_disk_file.cc @@ -260,7 +260,20 @@ fhandler_disk_file::fstat_helper (struct __stat64 *buf, path_conv *pc, } buf->st_blksize = S_BLKSIZE; - buf->st_blocks = (buf->st_size + S_BLKSIZE - 1) / S_BLKSIZE; + + /* GetCompressedFileSize() gets autoloaded. It returns INVALID_FILE_SIZE + if it doesn't exist. Since that's also a valid return value on 64bit + capable file systems, we must additionally check for the win32 error. */ + nFileSizeLow = GetCompressedFileSizeA (pc->get_win32 (), &nFileSizeHigh); + if (nFileSizeLow != INVALID_FILE_SIZE || GetLastError () == NO_ERROR) + /* On systems supporting compressed (and sparsed) files, + GetCompressedFileSize() returns the actual amount of + bytes allocated on disk. */ + buf->st_blocks = (((__off64_t)nFileSizeHigh << 32) + + nFileSizeLow + S_BLKSIZE - 1) / S_BLKSIZE; + else + /* Just compute no. of blocks from file size. */ + buf->st_blocks = (buf->st_size + S_BLKSIZE - 1) / S_BLKSIZE; buf->st_mode = 0; /* Using a side effect: get_file_attibutes checks for |