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IL2Cpp free space checking #4

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IL2Cpp free space checking #4

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13 changes: 13 additions & 0 deletions Platform/SystemIO/ModIO.Implementation.Platform/SystemIODataService.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -252,6 +252,12 @@ public bool TryCreateParentDirectory(string path)
return SystemIOWrapper.TryCreateParentDirectory(path, out Result _);
}

#if UNITY_STANDALONE_WIN || UNITY_EDITOR_WIN
[System.Runtime.InteropServices.DllImport("kernel32.dll", SetLastError = true, CharSet = System.Runtime.InteropServices.CharSet.Auto)]
[return: System.Runtime.InteropServices.MarshalAs(System.Runtime.InteropServices.UnmanagedType.Bool)]
static extern bool GetDiskFreeSpaceEx(string lpDirectoryName, out ulong lpFreeBytesAvailable, out ulong lpTotalNumberOfBytes, out ulong lpTotalNumberOfFreeBytes);
#endif

public async Task<bool> IsThereEnoughDiskSpaceFor(long bytes)
{
try
Expand All @@ -265,8 +271,15 @@ public async Task<bool> IsThereEnoughDiskSpaceFor(long bytes)
#else
FileInfo f = new FileInfo(PersistentDataRootDirectory);
string drive = Path.GetPathRoot(f.FullName);
#if UNITY_STANDALONE_WIN || UNITY_EDITOR_WIN
var success = GetDiskFreeSpaceEx(drive, out var freeBytesAvailable, out _, out _);
if (!success)
throw new IOException("Failed to check disk space");
return (ulong)bytes < freeBytesAvailable;
#else
var d = new DriveInfo(drive);
return bytes < d.AvailableFreeSpace;
#endif
#endif
}
catch(Exception e)
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