/* allocate and initialize console structure */
static vntsd_cons_t *
alloc_cons(vntsd_group_t *groupp, vcc_console_t *consolep)
{
vntsd_cons_t *consp;
int rv;
/* allocate console */
consp = (vntsd_cons_t *)malloc(sizeof (vntsd_cons_t));
if (consp == NULL) {
vntsd_log(VNTSD_ERR_NO_MEM, "alloc_cons");
return (NULL);
}
/* intialize console */
bzero(consp, sizeof (vntsd_cons_t));
(void) mutex_init(&consp->lock, USYNC_THREAD|LOCK_ERRORCHECK, NULL);
(void) cond_init(&consp->cvp, USYNC_THREAD, NULL);
consp->cons_no = consolep->cons_no;
(void) strlcpy(consp->domain_name, consolep->domain_name, MAXPATHLEN);
(void) strlcpy(consp->dev_name, consolep->dev_name, MAXPATHLEN);
consp->wr_tid = (thread_t)-1;
consp->vcc_fd = (thread_t)-1;
/* join the group */
(void) mutex_lock(&groupp->lock);
if ((rv = vntsd_que_append(&groupp->conspq, consp)) !=
VNTSD_SUCCESS) {
(void) mutex_unlock(&groupp->lock);
vntsd_log(rv, "alloc_cons");
free_cons(consp);
return (NULL);
}
groupp->num_cons++;
consp->group = groupp;
(void) mutex_unlock(&groupp->lock);
D1(stderr, "t@%d alloc_cons@%d %s %s\n", thr_self(),
consp->cons_no, consp->domain_name, consp->dev_name);
return (consp);
}
/*
* Initialize a console, if console is associated with with a
* new group, intialize the group.
*/
static int
alloc_cons_with_group(vntsd_t *vntsdp, vcc_console_t *consp,
vntsd_group_t **new_groupp)
{
vntsd_group_t *groupp = NULL;
int rv;
*new_groupp = NULL;
/* match group by tcp port */
(void) mutex_lock(&vntsdp->lock);
groupp = vntsd_que_find(vntsdp->grouppq,
(compare_func_t)grp_by_tcp, (void *)&(consp->tcp_port));
(void) mutex_unlock(&vntsdp->lock);
if (groupp != NULL) {
/* group with same tcp port found */
if (strcmp(groupp->group_name, consp->group_name)) {
/* conflict group name */
vntsd_log(VNTSD_ERR_VCC_GRP_NAME,
"group name is different from existing group");
return (VNTSD_ERR_VCC_CTRL_DATA);
}
} else {
/* new group */
groupp = alloc_group(vntsdp, consp->group_name,
consp->tcp_port);
if (groupp == NULL) {
return (VNTSD_ERR_NO_MEM);
}
assert(groupp->conspq == NULL);
/* queue group to vntsdp */
(void) mutex_lock(&vntsdp->lock);
rv = vntsd_que_append(&vntsdp->grouppq, groupp);
(void) mutex_unlock(&vntsdp->lock);
if (rv != VNTSD_SUCCESS) {
return (rv);
}
*new_groupp = groupp;
}
/* intialize console */
if (alloc_cons(groupp, consp) == NULL) {
/* no memory */
if (new_groupp != NULL) {
/* clean up new group */
(void) cond_destroy(&groupp->cvp);
(void) mutex_destroy(&groupp->lock);
free(groupp);
}
return (VNTSD_ERR_NO_MEM);
}
return (VNTSD_SUCCESS);
}
/* ceate console selection thread */
static int
create_console_thread(vntsd_group_t *groupp, int sockfd)
{
vntsd_client_t *clientp;
vntsd_thr_arg_t *thr_arg;
int rv;
assert(groupp);
D1(stderr, "t@%d create_console_thread@%lld:client@%d\n", thr_self(),
groupp->tcp_port, sockfd);
/* allocate a new client */
clientp = (vntsd_client_t *)malloc(sizeof (vntsd_client_t));
if (clientp == NULL) {
return (VNTSD_ERR_NO_MEM);
}
/* initialize the client */
bzero(clientp, sizeof (vntsd_client_t));
clientp->sockfd = sockfd;
clientp->cons_tid = (thread_t)-1;
(void) mutex_init(&clientp->lock, USYNC_THREAD|LOCK_ERRORCHECK, NULL);
/* append client to group */
(void) mutex_lock(&groupp->lock);
/* check if the group is [being] removed */
if (groupp->status & VNTSD_GROUP_IN_CLEANUP) {
(void) mutex_unlock(&groupp->lock);
vntsd_free_client(clientp);
return (VNTSD_STATUS_NO_CONS);
}
if ((rv = vntsd_que_append(&groupp->no_cons_clientpq, clientp))
!= VNTSD_SUCCESS) {
(void) mutex_unlock(&groupp->lock);
vntsd_free_client(clientp);
return (rv);
}
(void) mutex_unlock(&groupp->lock);
/*
* allocate thr_arg from heap for console thread so
* that thr_arg is still valid after this function exits.
* console thread will free thr_arg.
*/
thr_arg = (vntsd_thr_arg_t *)malloc(sizeof (vntsd_thr_arg_t));
if (thr_arg == NULL) {
vntsd_free_client(clientp);
return (VNTSD_ERR_NO_MEM);
}
thr_arg->handle = groupp;
thr_arg->arg = clientp;
(void) mutex_lock(&clientp->lock);
/* create console selection thread */
if (thr_create(NULL, 0, (thr_func_t)vntsd_console_thread,
thr_arg, THR_DETACHED, &clientp->cons_tid)) {
free(thr_arg);
(void) mutex_unlock(&clientp->lock);
(void) mutex_lock(&groupp->lock);
(void) vntsd_que_rm(&groupp->no_cons_clientpq, clientp);
(void) mutex_unlock(&groupp->lock);
vntsd_free_client(clientp);
return (VNTSD_ERR_CREATE_CONS_THR);
}
(void) mutex_unlock(&clientp->lock);
return (VNTSD_SUCCESS);
}
