stdin reading

[amleto]

why not use cin and `operator >> ` ?

for the socket trick you have to make sure the buffer is not used. I didn't know that trick was linux only.

you can try this,

QTextStream qtin(stdin); 
QString line = qtin.readLine();  // This is how you read the entire line
 
QString word;
qtin >> word;    // This is how you read a word (separated by space) at a time.

QTextStream qtin(stdin); 
QString line = qtin.readLine();  // This is how you read the entire line

QString word;
qtin >> word;    // This is how you read a word (separated by space) at a time.

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as suggested here http://stackoverflow.com/questions/2...use-cin-and-qt

[gmc]

Thanks.
i've already tried that, still waits until data is written to stdin

[amleto]

in that case get the rdbuf from cin.

[gmc]

still waits... could you write some more details how to do that?

i've tried this too:

std::string line;
std::getline( std::cin, line );

std::string line;
std::getline( std::cin, line );

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But still hangs and waits for data... it's so annoying. Why can't just read an empty line if nothing is there? or at least .bytesAvailable could be non-zero when i write to the stdin so i could check before reading..

[amleto]

I said try and use rdbuf. I don't see you use rdbuf anywhere. It is a member of cin

http://www.cplusplus.com/reference/iostream/ios/rdbuf/


I have just tried it, and it does not block.

[Corvin7]

to
amleto

Could you show an example how you used rdbuf to read from stdin and not block main event loop, please? Thanks in advance