C++ (Cpp) const_iterator::data示例

示例#1

文件： connection.cpp 项目： ccjinyang/cpp-driver

void Connection::PendingWriteSsl::flush() {
  if (!is_flushed_ && !buffers_.empty()) {
    SslSession* ssl_session = connection_->ssl_session_.get();

    uv_bufs_.reserve(buffers_.size());

    for (BufferVec::const_iterator it = buffers_.begin(),
         end = buffers_.end(); it != end; ++it) {
      uv_bufs_.push_back(uv_buf_init(const_cast<char*>(it->data()), it->size()));
    }

    rb::RingBuffer::Position prev_pos = ssl_session->outgoing().write_position();

    encrypt();

    FixedVector<uv_buf_t, SSL_ENCRYPTED_BUFS_COUNT> bufs;
    encrypted_size_ = ssl_session->outgoing().peek_multiple(prev_pos, &bufs);

    LOG_TRACE("Sending %u encrypted bytes", static_cast<unsigned int>(encrypted_size_));

    uv_stream_t* sock_stream = copy_cast<uv_tcp_t*, uv_stream_t*>(&connection_->socket_);
    uv_write(&req_, sock_stream, bufs.data(), bufs.size(), PendingWriteSsl::on_write);

    is_flushed_ = true;
  }
}

示例#2

文件： collection.cpp 项目： mody/cpp-driver

void Collection::encode_items_uint16(char* buf) const {
  for (BufferVec::const_iterator i = items_.begin(),
       end = items_.end(); i != end; ++i) {
    encode_uint16(buf, i->size());
    buf += sizeof(uint16_t);
    memcpy(buf, i->data(), i->size());
    buf += i->size();
  }
}

示例#3

文件： tuple.cpp 项目： NeelamAggarwal/cpp-driver

void Tuple::encode_buffers(size_t pos, Buffer* buf) const {
  for (BufferVec::const_iterator i = items_.begin(),
       end = items_.end(); i != end; ++i) {
    if (i->size() != 0) {
      pos = buf->copy(pos, i->data(), i->size());
    } else {
      pos = buf->encode_int32(pos, -1); // null
    }
  }
}

示例#4

文件： buffer_collection.cpp 项目： Ilceren/cpp-driver

void BufferCollection::encode(int version, char* buf) const {
  assert(version == 1 || version == 2);
  char* pos = buf;
  for (BufferVec::const_iterator it = bufs_.begin(),
      end = bufs_.end(); it != end; ++it) {
    encode_uint16(pos, it->size());
    pos += sizeof(uint16_t);

    memcpy(pos, it->data(), it->size());
    pos += it->size();
  }
}

示例#5

文件： connection.cpp 项目： PlexChat/cpp-driver

void Connection::PendingWriteSsl::encrypt() {
  char buf[SSL_WRITE_SIZE];

  size_t copied = 0;
  size_t offset = 0;
  size_t total = 0;

  SslSession* ssl_session = connection_->ssl_session_.get();

  BufferVec::const_iterator it = buffers_.begin(),
      end = buffers_.end();

  LOG_TRACE("Copying %u bufs", static_cast<unsigned int>(buffers_.size()));

  bool is_done = (it == end);

  while (!is_done) {
    assert(it->size() > 0);
    size_t size = it->size();

    size_t to_copy = size - offset;
    size_t available = SSL_WRITE_SIZE - copied;
    if (available < to_copy) {
      to_copy = available;
    }

    memcpy(buf + copied, it->data() + offset, to_copy);

    copied += to_copy;
    offset += to_copy;
    total += to_copy;

    if (offset == size) {
      ++it;
      offset = 0;
    }

    is_done = (it == end);

    if (is_done || copied == SSL_WRITE_SIZE) {
      int rc = ssl_session->encrypt(buf, copied);
      if (rc <= 0 && ssl_session->has_error()) {
        connection_->notify_error("Unable to encrypt data: " + ssl_session->error_message(), CONNECTION_ERROR_SSL);
        return;
      }
      copied = 0;
    }
  }

  LOG_TRACE("Copied %u bytes for encryption", static_cast<unsigned int>(total));
}

示例#6

文件： connection.cpp 项目： PlexChat/cpp-driver

void Connection::PendingWrite::flush() {
  if (!is_flushed_ && !buffers_.empty()) {
    UvBufVec bufs;

    bufs.reserve(buffers_.size());

    for (BufferVec::const_iterator it = buffers_.begin(),
         end = buffers_.end(); it != end; ++it) {
      bufs.push_back(uv_buf_init(const_cast<char*>(it->data()), it->size()));
    }

    is_flushed_ = true;
    uv_stream_t* sock_stream = copy_cast<uv_tcp_t*, uv_stream_t*>(&connection_->socket_);
    uv_write(&req_, sock_stream, bufs.data(), bufs.size(), PendingWrite::on_write);
  }
}