从套接字读取直到缓冲区中有某个字符
我正在尝试从套接字读取到缓冲区，直到使用 read(fd, buf, BUFFLEN) 到达某个字符。
例如，套接字将在一次读取调用中接收由空行分隔的两批信息。
是否可以将读取调用放入循环中，以便在到达此空白行时停止，然后在需要时可以稍后读取其余信息？
I am trying to read from a socket into a buffer until a certain character is reached using read(fd, buf, BUFFLEN).
For example, the socket will receive two lots of information separated by a blank line in one read call.
Is it possible to put the read call in a loop so it stops when it reaches this blank line, then it can read the rest of the information later if it is required?
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一种简单的方法是一次读取一个字节，直到前一个字节和当前字节是换行符，因为两个连续的换行符是一个空行：
任何未读的数据都必须在某个时刻被读取如果要读取新发送的数据。
A simple approach would be to read a single byte at a time until the previous byte and the current byte are new-line characters, as two consecutive new-line characters is a blank line:
Any unread data will have to be read at some point if newly sent data is to be read.
如果以后想访问这些信息，仍然需要从套接字中读取，否则会丢失。我认为最好的实现是继续从套接字循环读取，同时启动另一个进程/线程以在收到空白时执行您想要的任何操作。
You still need to read from the socket if you want to access this information later, otherwise it will be lost. I think best implementation would be to keep looping reading from the socket, while another process/thread is launched to perform any operation you want when a blank like is received.