1.请问我在使用sl_Send()函数发送数据时,发现有时候会返回-11,查找了手册,发现说-11好像是资源不可用,需要重新发送,那么一般什么情况下会导致这种资源不可用呢?
2.在使用sl_Send()该API函数时,默认使用的socket是阻塞还是非阻塞呢?
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