我需要跨连接套接字传输缓冲区内容的帮助. [英] I need help with tranmitting content of buffer across connected socket.

问题描述

我尝试使用send函数发送缓冲区的内容，并使用recv函数接收，但是我发现没有发送整个缓冲区的内容/没有接收到整个缓冲区的内容.

I tried sending the content of a buffer with send function and receive with recv function but I found out that the entire buffer content was not transmitted/the entire buffer content was not received. What can be the reason and how do I rectify this?

推荐答案

原因可能是您尚未检查这两个函数的文档，您可能不要检查其返回值: send() [ ^ ]， recv () [ ^ ].始终检查返回值是否有错误，并且永远不要假定它们发送了整个缓冲区.如果它们仅发送/接收部分数据，则将指针增加到缓冲区中，并发出另一个send()或recv()调用以发送/接收其余数据.

The reason can be that you haven''t checked out the documentation of these two functions and you probably don''t check their return value: send()[^], recv()[^]. Always check the return value for errors, and never assume that they sent the whole buffer. If they sent/received only part of the data then increase the pointer into your buffer and issue another send() or recv() call to send/receive the remaining data.

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