message: Fix global value
diff: @@ -678,6 +678,7 @@ bool http_client::send()
  zval *zvalue = NULL;
  uint32_t header_flag = 0x0;
  zval *zmethod, *zheaders, *zbody, *zupload_files, *zcookies, *z_download_file;
  + size_t send_bytes;
  if (path.length() == 0)
  {
  @@ -1031,7 +1032,8 @@ bool http_client::send()
  SW_HASHTABLE_FOREACH_END();
  }
  - if (socket->send_all(http_client_buffer->str, http_client_buffer->length) != (ssize_t) http_client_buffer->length)
  + send_bytes = http_client_buffer->length;
  + if (socket->send_all(http_client_buffer->str, http_client_buffer->length) != (ssize_t) send_bytes)
  {
  goto _send_fail;
  }
  @@ -1097,7 +1099,9 @@ bool http_client::send()
  swString_append_ptr(http_client_buffer, header_buf, n);
  swString_append_ptr(http_client_buffer, Z_STRVAL_P(zcontent), Z_STRLEN_P(zcontent));
  swString_append_ptr(http_client_buffer, "\r\n", 2);
  - if (socket->send_all(http_client_buffer->str, http_client_buffer->length) != (ssize_t) http_client_buffer->length)
  +
  + send_bytes = http_client_buffer->length;
  + if (socket->send_all(http_client_buffer->str, http_client_buffer->length) != (ssize_t) send_bytes)
  {
  goto _send_fail;
  }
  @@ -1185,7 +1189,8 @@ bool http_client::send()
  http_client_buffer->length, (int) http_client_buffer->length, http_client_buffer->str
  );
  - if (socket->send_all(http_client_buffer->str, http_client_buffer->length) != (ssize_t) http_client_buffer->length)
  + send_bytes = http_client_buffer->length;
  + if (socket->send_all(http_client_buffer->str, http_client_buffer->length) != (ssize_t) send_bytes)
  {
  _send_fail:
  zend_update_property_long(swoole_http_client_coro_ce, zobject, ZEND_STRL("errCode"), socket->errCode);
  @@ -1388,7 +1393,8 @@ bool http_client::push(zval *zdata, zend_long opcode, bool fin)
  return false;
  }
  - if (socket->send_all(http_client_buffer->str, http_client_buffer->length) != (ssize_t) http_client_buffer->length)
  + size_t send_bytes = http_client_buffer->length;
  + if (socket->send_all(http_client_buffer->str, http_client_buffer->length) != (ssize_t) send_bytes)
  {
  zend_update_property_long(swoole_http_client_coro_ce, zobject, ZEND_STRL("errCode"), socket->errCode);
  zend_update_property_string(swoole_http_client_coro_ce, zobject, ZEND_STRL("errMsg"), socket->errMsg);
  