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Old 04-17-2004, 09:04 AM   #1
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C Popen

Dear all,
Now, I want to change the command in C++ Linux "popen" into another command with the same function.
Because when I use "popen", it spends a lot of time to load.

Please suggest something, help me!!!
Old 04-17-2004, 12:02 PM   #2
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I guess the problem is not in popen(), but maybe in the command you are running, or maybe you are using it incorrectly. Could post the relevant piece of code?
Old 04-17-2004, 07:07 PM   #3
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popen() buffers i/o by default, which could be the problem. Change it to unbuffered using setvbuf() (or something like that), or just do it manually with fork()/exec()/{read()|write()}


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