code clean , make buffers for signal. #10
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Signed-off-by: zhanluxianshen <zhanluxianshen@163.com>
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1 code clean for duplication
2 Package signal will not block sending to c: the caller must ensure that c has sufficient buffer space to keep up with the expected signal rate. For a channel used for notification of just one signal value, a buffer of size 1 is sufficient.
signal