有一些简单的规则，从POSIX约定开始:
Methods that create objects return NULL if they fail.
Methods that process data may return the number of bytes processed, or -1 on an error or failure.
Other methods return 0 on success and -1 on an error or failure.
The error code is provided in errno or zmq_errno().
此内容由惯性聚合(RSS阅读器)自动聚合整理，仅供阅读参考。 原文来自 — 版权归原作者所有。