bryancall commented on a change in pull request #7818:
URL: https://github.com/apache/trafficserver/pull/7818#discussion_r632141079
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File path: iocore/aio/AIO.cc
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@@ -379,18 +379,15 @@ aio_queue_req(AIOCallbackInternal *op, int fromAPI = 0)
static inline int
cache_op(AIOCallbackInternal *op)
{
- bool read = (op->aiocb.aio_lio_opcode == LIO_READ);
+ using ActionFunc = decltype(&pread);
+ ActionFunc action = op->aiocb.aio_lio_opcode == LIO_READ ? &pread :
reinterpret_cast<ActionFunc>(&pwrite);
Review comment:
I am sorry, but I don't think the code is an improvement. It has a
decltype and a reinterpret_cast to save a bool conditional before doing a
syscall. It isn't going to effect performance.
Also, it now makes debugging harder since you can't break easily on the read
or write.
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