static size_t read_cb()

in EMASCurl/EMASCurlProtocol.m [849:879]

• 24 lines of code
• 7 McCabe index (conditional complexity)

static size_t read_cb(char *buffer, size_t size, size_t nitems, void *userp) {
    EMASCurlProtocol *protocol = (__bridge EMASCurlProtocol *)userp;

    if (!protocol || !protocol.inputStream) {
        return CURL_READFUNC_ABORT;
    }

    if (protocol.shouldCancel) {
        return CURL_READFUNC_ABORT;
    }

    if ([protocol.inputStream streamStatus] == NSStreamStatusNotOpen) {
        [protocol.inputStream open];
    }

    NSInteger bytesRead = [protocol.inputStream read:(uint8_t *)buffer maxLength:size * nitems];
    if (bytesRead < 0) {
        return CURL_READFUNC_ABORT;
    }

    protocol.totalBytesSent += bytesRead;

    if (protocol.uploadProgressUpdateBlock) {
        protocol.uploadProgressUpdateBlock(protocol.request,
                                           bytesRead,
                                           protocol.totalBytesSent,
                                           protocol.totalBytesExpected);
    }

    return bytesRead;
}