public Ring(int entries, RingOptions?ringOptions = default)
{
if (!RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
throw new PlatformNotSupportedException();
}
if (entries < 1)
{
throw new ArgumentOutOfRangeException(nameof(entries), "must be non-zero positive value");
}
io_uring_params p = default;
int fd = Setup((uint)entries, &p, ringOptions);
_ringFd = new CloseHandle();
_ringFd.SetHandle(fd);
_flags = p.flags;
_features = p.features;
var(sqSize, cqSize) = GetSize(&p);
try
{
_sq = MapSq(fd, sqSize, &p, out _sqHandle, out _sqeHandle);
_cq = MapCq(fd, cqSize, &p, _sqHandle, out _cqHandle);
}
catch (ErrnoException)
{
// Ensure we don't leak file handles on error
Dispose();
throw;
}
SubmissionQueueSize = (int)sqSize;
CompletionQueueSize = (int)cqSize;
}
Ring(int entries, object?hack, RingOptions? ringOptions = default)
#endif
{
if (!RuntimeInformation.IsOSPlatform(OSPlatform.Linux) || !KernelVersion.Supports.IoUring)
{
ThrowPlatformNotSupportedException();
}
if (entries < 1)
{
ThrowArgumentOutOfRangeException(ExceptionArgument.entries);
}
io_uring_params p = default;
int fd = Setup((uint)entries, &p, ringOptions);
_ringFd = new CloseHandle();
_ringFd.SetHandle(fd);
_flags = p.flags;
_features = p.features;
var(sqSize, cqSize) = GetSize(&p);
try
{
_sq = MapSq(fd, sqSize, &p, SubmissionPollingEnabled, IoPollingEnabled, out _sqHandle, out _sqeHandle);
_cq = MapCq(fd, cqSize, &p, _sqHandle, IoPollingEnabled, out _cqHandle);
_supportedOperations = FetchSupportedOperations(fd);
}
catch (ErrnoException)
{
// Ensure we don't leak file handles on error
Dispose();
throw;
}
}