Using QFile

viniltc

Hi all,

I have the following bit of code written in C:

        FILE *f=fopen(config_file_name, "rb");
        if(!f)
        {
            perror(config_file_name);
            printf("Could not open file '%s'\n", config_file_name);
            return;
        }
        size_t len=0;
        while(!feof(f))
        {
            len+=fread(config+len, 1, MAX_CONFIG_FILE_LENGTH-len, f); // to read bytes from file
        }
        fclose(f);
        if(len)
        {
            send_long_register((nv_config?STIM_LONG_REG_NV_STIM_CONFIG_FILE:STIM_LONG_REG_STIM_CONFIG_FILE), len, (uint8_t*)config); // send the content to another function
        }
        else
        {
            printf("Could not read any bytes from file.\n");
        }

How can I do the same operations using QFile??

Thank you :)

JonB

@viniltc
Unless you expect someone to spell out each equivalent QFile method corresponding to each of your FILE ones, have you read through https://doc.qt.io/qt-5/qfile.html ? The corresponding methods are really pretty obviously named....

VRonin

QFile f(config_file_name);
if(!f.open(QFile::ReadOnly))
qDebug() << "Could not open file " << config_file_name;
QByteArray config = f.readAll();
send_long_register(config);

viniltc

Thanks a lot @VRonin That's exactly what I was looking for