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Implement ThreadedFileEventDriver.truncate on Windows.

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This commit is contained in:
Sönke Ludwig 2021-01-12 11:49:05 +01:00
parent 5e060d2d0b
commit 55cd860ea3
1 changed files with 20 additions and 0 deletions
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20
source/eventcore/drivers/threadedfile.d
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@ -224,6 +224,26 @@ final class ThreadedFileEventDriver(Events : EventDriverEvents) : EventDriverFil
return;
}
on_finish(file, IOStatus.ok, 0);
} else version (Windows) {
import core.sys.windows.windows : FILE_BEGIN, HANDLE, INVALID_HANDLE_VALUE,
LARGE_INTEGER, SetFilePointerEx, SetEndOfFile;
import core.stdc.stdio : _get_osfhandle;
auto h = () @trusted { return cast(HANDLE)_get_osfhandle(cast(int)file); } ();
if (h == INVALID_HANDLE_VALUE) {
on_finish(file, IOStatus.error, 0);
return;
}
LARGE_INTEGER ls = { QuadPart: size };
if (!() @trusted { return SetFilePointerEx(h, ls, null, FILE_BEGIN); } ()) {
on_finish(file, IOStatus.error, 0);
return;
}
if (!() @trusted { return SetEndOfFile(h); } ()) {
on_finish(file, IOStatus.error, 0);
return;
}
on_finish(file, IOStatus.ok, 0);
} else {
on_finish(file, IOStatus.error, 0);
}