jonnxu commented on a change in pull request #65: Realization C asynSend
URL: https://github.com/apache/rocketmq-client-cpp/pull/65#discussion_r246975331
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File path: include/CProducer.h
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@@ -30,7 +31,7 @@ extern "C" {
typedef struct CProducer CProducer;
typedef int(*QueueSelectorCallback)(int size, CMessage *msg, void *arg);
Review comment:
why need the parameter size, what's it function?
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