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分享请教：socket 编程中，send ,recv 的作用和 write , read 是一样的，是吗？谢谢！
请教：
socket 编程中，send ,recv 的作用和 write , read 是一样的，是吗？
一般是使用 send ,recv 还是使用 write , read 呢？
谢谢！
socket 编程中，send ,recv 的作用和 write , read 是一样的，是吗？
一般是使用 send ,recv 还是使用 write , read 呢？
谢谢！
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vipzhouch 2006-10-17
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send recv 是面向套接口id
read write 需要的是文件描述符
read write 需要的是文件描述符
tcww88 2006-10-17
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What is the difference between read() and recv()?
From Andrew Gierth (andrew@erlenstar.demon.co.uk):
read() is equivalent to recv() with a flags parameter of 0. Other values for the flags parameter change the behaviour of recv(). Similarly, write() is equivalent to send() with flags == 0.
It is unlikely that send()/recv() would be dropped; perhaps someone with a copy of the POSIX drafts for socket calls can check...
Portability note: non-unix systems may not allow read()/write() on sockets, but recv()/send() are usually ok. This is true on Windows and OS/2, for example.
From Andrew Gierth (andrew@erlenstar.demon.co.uk):
read() is equivalent to recv() with a flags parameter of 0. Other values for the flags parameter change the behaviour of recv(). Similarly, write() is equivalent to send() with flags == 0.
It is unlikely that send()/recv() would be dropped; perhaps someone with a copy of the POSIX drafts for socket calls can check...
Portability note: non-unix systems may not allow read()/write() on sockets, but recv()/send() are usually ok. This is true on Windows and OS/2, for example.
jason69s 2006-10-17
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read和write也可以对socket的fd进行处理
二者在BSD4.4上是一致的，最终会调到统一的内核处理函数，只是recv和send多些选项(flag)，估计在linux上的主要功能也差不多吧
二者在BSD4.4上是一致的，最终会调到统一的内核处理函数，只是recv和send多些选项(flag)，估计在linux上的主要功能也差不多吧
