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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.
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?
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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