QSerialPort and std::bad_alloc
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Hi,
I have a serial line which might receive a large quantity of data. Sometimes happens the application crashes with the following output:@
terminate called after throwing an instance of 'std::bad_alloc'
what(): std::bad_alloc
@it's hard to debug but after a lot of trials it seems it happens during the "readAll" execution:
@
void mySerial::readyRead() {
QByteArray buffer = serial()->readAll();
[...]
}
@The data received is composed of short strings (about 50 byte each) every 10/15 ms.
If I try to slow down the transmitter (say a string every 50 ms) the crash never happens.It's not mandatory to process each single message. I might live with some loss of packets. But I cannot live with such a crash!
What would you suggest?
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Whenever you want to read or write large amount of data. then u have to do in parts. means u have to mention that u'll read/write such amount of data in one time and this process will be happened till it is not completed.