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mingw32: Make NTFS sparse file on --file-allocation=trunc

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This commit is contained in:
Tatsuhiro Tsujikawa 2013-01-11 18:35:54 +09:00
parent 357e4b1a77
commit e0ea88ebcf
6 changed files with 20 additions and 7 deletions
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14
src/AbstractDiskWriter.cc
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@ -463,11 +463,23 @@ void AbstractDiskWriter::truncate(int64_t length)
}
}
void AbstractDiskWriter::allocate(int64_t offset, int64_t length)
void AbstractDiskWriter::allocate(int64_t offset, int64_t length, bool sparse)
{
if(fd_ == A2_BAD_FD) {
throw DL_ABORT_EX("File not yet opened.");
}
if(sparse) {
#ifdef __MINGW32__
DWORD bytesReturned;
if(!DeviceIoControl(fd_, FSCTL_SET_SPARSE, 0, 0, 0, 0,
&bytesReturned, 0)) {
A2_LOG_WARN(fmt("Making file sparse failed or pending: %s",
fileStrerror(GetLastError()).c_str()));
}
#endif // __MINGW32__
truncate(offset+length);
return;
}
#ifdef HAVE_SOME_FALLOCATE
# ifdef __MINGW32__
truncate(offset+length);