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Addition of DCB and Poll statistics in show status output

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This commit is contained in:
Mark Riddoch
2015-02-20 10:05:50 +00:00
parent df3a548be1
commit 8eb14235d1
7 changed files with 287 additions and 10 deletions
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55
server/core/dcb.c
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@ -1583,8 +1583,10 @@ va_list args;
int
dcb_isclient(DCB *dcb)
{
if(dcb->session) {
if (dcb->session->client) {
if (dcb->state != DCB_STATE_LISTENING && dcb->session)
{
if (dcb->session->client)
{
return (dcb->session && dcb == dcb->session->client);
}
}
@ -2168,3 +2170,52 @@ dcb_null_auth(DCB *dcb, SERVER *server, SESSION *session, GWBUF *buf)
{
return 0;
}
/**
* Return DCB counts optionally filtered by usage
*
* @param usage The usage of the DCB
* @return A count of DCBs in the desired state
*/
int
dcb_count_by_usage(DCB_USAGE usage)
{
int rval = 0;
DCB *ptr;
spinlock_acquire(&dcbspin);
ptr = allDCBs;
while (ptr)
{
switch (usage)
{
case DCB_USAGE_CLIENT:
if (dcb_isclient(ptr))
rval++;
break;
case DCB_USAGE_LISTENER:
if (ptr->state == DCB_STATE_LISTENING)
rval++;
break;
case DCB_USAGE_BACKEND:
if (dcb_isclient(ptr) == 0
&& ptr->dcb_role == DCB_ROLE_REQUEST_HANDLER)
rval++;
break;
case DCB_USAGE_INTERNAL:
if (ptr->dcb_role == DCB_ROLE_REQUEST_HANDLER)
rval++;
break;
case DCB_USAGE_ZOMBIE:
if (DCB_ISZOMBIE(ptr))
rval++;
break;
case DCB_USAGE_ALL:
rval++;
break;
}
ptr = ptr->next;
}
spinlock_release(&dcbspin);
return rval;
}