摘要：typedef void (*IOTRDStateCB)(char *host, unsigned int state); void RDStateCB(char *host, unsigned int state) { OCStackResult ret = OC_STACK_OK; LOG_DEBUG("host[%s] state[%s]", host, state == 0? "... 阅读全文

摘要：定义 volatile keword indicates that a value may chang between different accesses, even if it does not appear to be modify.This keyword prevents an optim 阅读全文