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std.posix: read on timerfd can return error.Canceled
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6976a5da19
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@ -185,6 +185,7 @@ const FmtError = error{
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BrokenPipe,
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Unexpected,
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WouldBlock,
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Canceled,
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FileClosed,
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DestinationAddressRequired,
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DiskQuota,
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@ -791,6 +791,10 @@ pub const ReadError = error{
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/// and reading from the file descriptor would block.
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WouldBlock,
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/// reading a timerfd with CANCEL_ON_SET will lead to this error
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/// when the clock goes through a discontinuous change
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Canceled,
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/// In WASI, this error occurs when the file descriptor does
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/// not hold the required rights to read from it.
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AccessDenied,
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@ -851,6 +855,7 @@ pub fn read(fd: fd_t, buf: []u8) ReadError!usize {
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.INVAL => unreachable,
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.FAULT => unreachable,
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.AGAIN => return error.WouldBlock,
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.CANCELED => return error.Canceled,
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.BADF => return error.NotOpenForReading, // Can be a race condition.
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.IO => return error.InputOutput,
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.ISDIR => return error.IsDir,
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@ -1141,6 +1141,7 @@ fn preadAtLeast(file: fs.File, buf: []u8, offset: u64, min_read_len: usize) !usi
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const len = file.pread(buf[i..], offset + i) catch |err| switch (err) {
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error.OperationAborted => unreachable, // Windows-only
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error.WouldBlock => unreachable, // Did not request blocking mode
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error.Canceled => unreachable, // timerfd is unseekable
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error.NotOpenForReading => unreachable,
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error.SystemResources => return error.SystemResources,
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error.IsDir => return error.UnableToReadElfFile,
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@ -350,6 +350,7 @@ pub const File = struct {
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SocketNotConnected,
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NotOpenForReading,
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WouldBlock,
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Canceled,
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AccessDenied,
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Unexpected,
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DiskQuota,
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