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The Client Recovery Library includes the following convenience functions you can use in your applications to transparently restore client/server connections in the event of failures:
| Function | Description |
|---|---|
| ha_attach() | Attach a recovery function to a connection to make it HA-aware. |
| ha_close() | Detach an attached HA fd, then close it. |
| ha_connection_ctrl() | Control the operation of a HA-aware connection. |
| ha_ConnectAttach(), ha_ConnectAttach_r() | Create a connection using ConnectAttach() and attach it to the HA lib. |
| ha_ConnectDetach(), ha_ConnectDetach_r() | Detach an attached fd, then close the connection using ConnectDetach(). |
| ha_creat(), ha_creat64() | Create a connection and attach it to the HA lib. |
| ha_detach() | Detach a connection previously attached via ha_attach(). |
| ha_dup() | Duplicate an HA connection. |
| ha_fclose() | Detach an attached HA fd for a file stream, then close it. |
| ha_fopen() | Open a file stream and attach it to the HA lib. |
| ha_open(), ha_open64() | Open a connection and attach it to the HA lib. |
| ha_ReConnectAttach() | Reopen a connection while performing recovery. |
| ha_reopen() | Reopen a connection while performing recovery. |
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For information on using these ha_*() functions, see the chapter Using the Client Recovery Library in this guide. |
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