(PHP 4 >= 4.0.1, PECL yaz >= 0.9.0)
yaz_wait — Wait for Z39.50 requests to complete
This function carries out networked (blocked) activity for outstanding requests which have been prepared by the functions yaz_connect(), yaz_search(), yaz_present(), yaz_scan() and yaz_itemorder().
yaz_wait() returns when all servers have either completed all requests or aborted (in case of errors).
options
An associative array of options:
Sets timeout in seconds. If a server has not responded within the timeout it is considered dead and yaz_wait() returns. The default value for timeout is 15 seconds.
A boolean.
成功时返回 TRUE， 或者在失败时返回 FALSE。
In event mode, returns resource 或者在失败时返回 FALSE.