hoxResult
hoxDbClient::initialize( const char* szHost,
int nPort )
{
const char* FNAME = "hoxDbClient::initialize";
hoxResult result = hoxRC_UNKNOWN;
hoxLog(LOG_INFO, "%s: ENTER. [%s:%d]", FNAME, szHost, nPort);
if ( s_bInitialized )
{
hoxLog(LOG_DEBUG, "%s: The module has already initialized.", FNAME);
return hoxRC_OK;
}
s_mutex = st_mutex_new(); // ... to provide exclusive assess
/* Open a "shared" client socket. */
s_nfd = _open_client_socket( szHost, nPort );
if ( s_nfd == NULL )
{
hoxLog(LOG_ERROR, "%s: Failed to open a client socket.", FNAME);
return hoxRC_OK;
}
s_bInitialized = true;
/* Send an "HELLO" request to make sure that the DB Agent is OK. */
result = send_HELLO();
if ( result != hoxRC_OK )
{
hoxLog(LOG_ERROR, "%s: Failed to send HELLO request.", FNAME);
return hoxRC_ERR;
}
/* Start a "write" thread to help avoiding blocking
* handlers of client requests.
*/
s_writeCond = st_cond_new();
s_writeThread = st_thread_create( _handle_db_write,
( void * ) NULL,
1 /* joinable */,
0 /* stack-size */ );
if ( s_writeThread == NULL )
{
hoxLog(LOG_ERROR, "%s: Failed to create write DB thread.", FNAME);
return hoxRC_ERR;
}
hoxLog(LOG_DEBUG, "%s: END. (OK)", FNAME);
return hoxRC_OK;
}
/*---------------------------------------------------------------------
* Method: pwospf_run_thread
*
* Main thread of pwospf subsystem.
*
*---------------------------------------------------------------------*/
static
void* pwospf_run_thread(void* arg)
{
struct sr_instance* sr = (struct sr_instance*)arg;
while(1)
{
/* -- PWOSPF subsystem functionality should start here! -- */
int i;
for(i = 0; i < OSPF_DEFAULT_LSUINT; i += OSPF_DEFAULT_HELLOINT)
{
send_HELLO(sr);
sleep(OSPF_DEFAULT_HELLOINT);
}
/*Send LSU updates*/
check_top_invalid(sr); /*Check for expired topo entries*/
send_lsu(sr);
}
} /* -- run_ospf_thread -- */