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Handle EBADFD (ring fd in bad state) in enter()

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This commit is contained in:
Joran Dirk Greef 2020-10-03 14:34:01 +02:00
parent 5f99d2c240
commit 95def89c23
1 changed files with 7 additions and 4 deletions
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11
lib/std/os/linux/io_uring.zig
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@ -192,17 +192,20 @@ pub const IO_Uring = struct {
// The kernel was unable to allocate memory or ran out of resources for the request.
// The application should wait for some completions and try again:
linux.EAGAIN => return error.SystemResources,
// The SQE `fd` is invalid, or IOSQE_FIXED_FILE was set but no files were registered:
linux.EBADF => return error.FileDescriptorInvalid,
// The file descriptor is valid, but the ring is not in the right state.
// See io_uring_register(2) for how to enable the ring.
linux.EBADFD => return error.FileDescriptorInBadState,
// The application attempted to overcommit the number of requests it can have pending.
// The application should wait for some completions and try again:
linux.EBUSY => return error.CompletionQueueOvercommitted,
// The SQE `fd` is invalid, or IOSQE_FIXED_FILE was set but no files were registered:
linux.EBADF => return error.FileDescriptorInvalid,
// The SQE is invalid, or valid but the ring was setup with IORING_SETUP_IOPOLL:
linux.EINVAL => return error.SubmissionQueueEntryInvalid,
// The buffer is outside the process' accessible address space, or IORING_OP_READ_FIXED
// or IORING_OP_WRITE_FIXED was specified but no buffers were registered, or the range
// described by `addr` and `len` is not within the buffer registered at `buf_index`:
linux.EFAULT => return error.BufferInvalid,
// The SQE is invalid, or valid but the ring was setup with IORING_SETUP_IOPOLL:
linux.EINVAL => return error.SubmissionQueueEntryInvalid,
linux.ENXIO => return error.RingShuttingDown,
// The kernel believes our `self.fd` does not refer to an io_uring instance,
// or the opcode is valid but not supported by this kernel (more likely):