tcp lighting connected

Translation: Hua Liang from: Http://stackoverflow.com/questions/1511129/boostasioiptcpsocket-is-connected Problem: I want to verify the connection status before realize my operations (read/write ). Is there a way to make an isconnect () method? I sawThis, But it seems "ugly ". I testedIs_open () function also, but doesn't have the expected behavior. Thanks The general content is: How do I know the current connection status before network communicatio

bound, and in the 2.6.18 kernel it is replaced by 256 if the value is less than 256 bytes. (2) What is the relationship between the SO_SNDBUF, So_rcvbuf cache usage caps and actual memory that can be set up? The memory used by TCP connections is primarily determined by the read-write cache, while the size of the read-write cache is only relevant to the actual use of the scene, and So_sndbuf and so_rcvbuf are useless when the actual use is not reach

The following error occurred while PHP was connecting to MySQL: Warning:mysql_connect () [Function.mysql-connect]: [2002] A connection attempt failed because the connected party did not (Trying to connect via tcp://localhost:3306) into E:\apache\www\mysql.php on line warning:mysql_connect () [function.mysq L-connect]: A connection attempt failed because the connected