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Properly close the branch session of the tee filter.

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This commit is contained in:
Markus Makela
2015-08-28 19:49:03 +03:00
parent 5338318900
commit d29c5909a6
1 changed files with 28 additions and 33 deletions
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61
server/modules/filter/tee.c
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@ -212,6 +212,7 @@ int route_single_query(TEE_INSTANCE* my_instance,
GWBUF* buffer,
GWBUF* clone);
int reset_session_state(TEE_SESSION* my_session, GWBUF* buffer);
void create_orphan(SESSION* ses);
static void
orphan_free(void* data)
@ -557,6 +558,7 @@ char *remote, *userName;
if ((ses = session_alloc(my_instance->service, dcb)) == NULL)
{
filter_free(dummy);
dcb_close(dcb);
freeSession(instance, (void *)my_session);
my_session = NULL;
@ -572,39 +574,27 @@ char *remote, *userName;
dummy->obj = GetModuleObject();
dummy->filter = NULL;
my_session->branch_session = ses;
my_session->branch_dcb = dcb;
my_session->dummy_filterdef = dummy;
if((dummy_upstream = filterUpstream(
if(true || (dummy_upstream = filterUpstream(
dummy, my_session, &ses->tail)) == NULL)
{
spinlock_acquire(&ses->ses_lock);
ses->state = SESSION_STATE_STOPPING;
spinlock_release(&ses->ses_lock);
ses->service->router->closeSession(
ses->service->router_instance,
ses->router_session);
ses->client = NULL;
dcb->session = NULL;
session_free(ses);
filter_free(dummy);
closeSession(instance,(void*)my_session);
dcb_close(dcb);
freeSession(instance, (void *) my_session);
my_session = NULL;
free(my_session);
LOGIF(LE, (skygw_log_write_flush(
LOGFILE_ERROR,
"Error : tee: Allocating memory for"
"dummy upstream failed."
" Terminating session.")));
goto retblock;
return NULL;
}
ses->tail = *dummy_upstream;
my_session->branch_session = ses;
my_session->branch_dcb = dcb;
my_session->dummy_filterdef = dummy;
MySQLProtocol* protocol = (MySQLProtocol*)session->client->protocol;
my_session->use_ok = protocol->client_capabilities & (1 << 6);
free(dummy_upstream);
@ -712,19 +702,7 @@ skygw_log_write(LOGFILE_TRACE,"Tee free: %d", atomic_add(&debug_seq,1));
}
else if(state == SESSION_STATE_STOPPING)
{
orphan_session_t* orphan;
if((orphan = malloc(sizeof(orphan_session_t))) == NULL)
{
skygw_log_write(LOGFILE_ERROR,"Error : Failed to "
"allocate memory for orphan session struct, "
"child session might leak memory.");
}else{
orphan->session = ses;
spinlock_acquire(&orphanLock);
orphan->next = allOrphans;
allOrphans = orphan;
spinlock_release(&orphanLock);
}
create_orphan(ses);
}
}
if (my_session->dummy_filterdef)
@ -1400,4 +1378,21 @@ int reset_session_state(TEE_SESSION* my_session, GWBUF* buffer)
my_session->command = command;
return 1;
}
void create_orphan(SESSION* ses)
{
orphan_session_t* orphan;
if((orphan = malloc(sizeof(orphan_session_t))) == NULL)
{
skygw_log_write(LOGFILE_ERROR,"Error : Failed to "
"allocate memory for orphan session struct, "
"child session might leak memory.");
}else{
orphan->session = ses;
spinlock_acquire(&orphanLock);
orphan->next = allOrphans;
allOrphans = orphan;
spinlock_release(&orphanLock);
}
}