Subversion Repositories HelenOS

Compare Revisions

Ignore whitespace Rev 4389 → Rev 4691

/branches/dynload/kernel/generic/src/ipc/event.c
64,8 → 64,8
}
}
 
static int
event_subscribe(event_type_t evno, unative_t method, answerbox_t *answerbox)
static int event_subscribe(event_type_t evno, unative_t method,
answerbox_t *answerbox)
{
if (evno >= EVENT_END)
return ELIMIT;
122,8 → 122,7
}
}
 
void
event_notify(event_type_t evno, unative_t a1, unative_t a2, unative_t a3,
void event_notify(event_type_t evno, unative_t a1, unative_t a2, unative_t a3,
unative_t a4, unative_t a5)
{
ASSERT(evno < EVENT_END);
141,9 → 140,11
IPC_SET_ARG4(call->data, a4);
IPC_SET_ARG5(call->data, a5);
ipl_t ipl = interrupts_disable();
spinlock_lock(&events[evno].answerbox->irq_lock);
list_append(&call->link, &events[evno].answerbox->irq_notifs);
spinlock_unlock(&events[evno].answerbox->irq_lock);
interrupts_restore(ipl);
waitq_wakeup(&events[evno].answerbox->wq, WAKEUP_FIRST);
}
/branches/dynload/kernel/generic/src/ipc/ipcrsc.c
160,27 → 160,29
return result;
}
 
/** Allocate new phone slot in the current TASK structure.
/** Allocate new phone slot in the specified task.
*
* @param t Task for which to allocate a new phone.
*
* @return New phone handle or -1 if the phone handle limit is
* exceeded.
*/
int phone_alloc(void)
int phone_alloc(task_t *t)
{
int i;
 
spinlock_lock(&TASK->lock);
spinlock_lock(&t->lock);
for (i = 0; i < IPC_MAX_PHONES; i++) {
if (TASK->phones[i].state == IPC_PHONE_HUNGUP &&
atomic_get(&TASK->phones[i].active_calls) == 0)
TASK->phones[i].state = IPC_PHONE_FREE;
if (t->phones[i].state == IPC_PHONE_HUNGUP &&
atomic_get(&t->phones[i].active_calls) == 0)
t->phones[i].state = IPC_PHONE_FREE;
 
if (TASK->phones[i].state == IPC_PHONE_FREE) {
TASK->phones[i].state = IPC_PHONE_CONNECTING;
if (t->phones[i].state == IPC_PHONE_FREE) {
t->phones[i].state = IPC_PHONE_CONNECTING;
break;
}
}
spinlock_unlock(&TASK->lock);
spinlock_unlock(&t->lock);
 
if (i == IPC_MAX_PHONES)
return -1;
/branches/dynload/kernel/generic/src/ipc/kbox.c
248,7 → 248,7
return EINVAL;
}
 
newphid = phone_alloc();
newphid = phone_alloc(TASK);
if (newphid < 0) {
mutex_unlock(&ta->kb.cleanup_lock);
return ELIMIT;
/branches/dynload/kernel/generic/src/ipc/sysipc.c
93,6 → 93,8
static inline int method_is_forwardable(unative_t method)
{
switch (method) {
case IPC_M_CONNECTION_CLONE:
case IPC_M_CONNECT_ME:
case IPC_M_PHONE_HUNGUP:
/* This message is meant only for the original recipient. */
return 0;
140,6 → 142,8
static inline int answer_need_old(call_t *call)
{
switch (IPC_GET_METHOD(call->data)) {
case IPC_M_CONNECTION_CLONE:
case IPC_M_CONNECT_ME:
case IPC_M_CONNECT_TO_ME:
case IPC_M_CONNECT_ME_TO:
case IPC_M_SHARE_OUT:
182,9 → 186,48
if (!olddata)
return 0;
 
if (IPC_GET_METHOD(*olddata) == IPC_M_CONNECT_TO_ME) {
if (IPC_GET_METHOD(*olddata) == IPC_M_CONNECTION_CLONE) {
phoneid = IPC_GET_ARG1(*olddata);
phone_t *phone = &TASK->phones[phoneid];
if (IPC_GET_RETVAL(answer->data) != EOK) {
/*
* The recipient of the cloned phone rejected the offer.
* In this case, the connection was established at the
* request time and therefore we need to slam the phone.
* We don't merely hangup as that would result in
* sending IPC_M_HUNGUP to the third party on the
* other side of the cloned phone.
*/
mutex_lock(&phone->lock);
if (phone->state == IPC_PHONE_CONNECTED) {
spinlock_lock(&phone->callee->lock);
list_remove(&phone->link);
phone->state = IPC_PHONE_SLAMMED;
spinlock_unlock(&phone->callee->lock);
}
mutex_unlock(&phone->lock);
}
} else if (IPC_GET_METHOD(*olddata) == IPC_M_CONNECT_ME) {
phone_t *phone = (phone_t *)IPC_GET_ARG5(*olddata);
if (IPC_GET_RETVAL(answer->data) != EOK) {
/*
* The other party on the cloned phoned rejected our
* request for connection on the protocol level.
* We need to break the connection without sending
* IPC_M_HUNGUP back.
*/
mutex_lock(&phone->lock);
if (phone->state == IPC_PHONE_CONNECTED) {
spinlock_lock(&phone->callee->lock);
list_remove(&phone->link);
phone->state = IPC_PHONE_SLAMMED;
spinlock_unlock(&phone->callee->lock);
}
mutex_unlock(&phone->lock);
}
} else if (IPC_GET_METHOD(*olddata) == IPC_M_CONNECT_TO_ME) {
phoneid = IPC_GET_ARG5(*olddata);
if (IPC_GET_RETVAL(answer->data)) {
if (IPC_GET_RETVAL(answer->data) != EOK) {
/* The connection was not accepted */
phone_dealloc(phoneid);
} else {
196,7 → 239,7
}
} else if (IPC_GET_METHOD(*olddata) == IPC_M_CONNECT_ME_TO) {
/* If the users accepted call, connect */
if (!IPC_GET_RETVAL(answer->data)) {
if (IPC_GET_RETVAL(answer->data) == EOK) {
ipc_phone_connect((phone_t *) IPC_GET_ARG5(*olddata),
&TASK->answerbox);
}
293,6 → 336,26
return 0;
}
 
static void phones_lock(phone_t *p1, phone_t *p2)
{
if (p1 < p2) {
mutex_lock(&p1->lock);
mutex_lock(&p2->lock);
} else if (p1 > p2) {
mutex_lock(&p2->lock);
mutex_lock(&p1->lock);
} else {
mutex_lock(&p1->lock);
}
}
 
static void phones_unlock(phone_t *p1, phone_t *p2)
{
mutex_unlock(&p1->lock);
if (p1 != p2)
mutex_unlock(&p2->lock);
}
 
/** Called before the request is sent.
*
* @param call Call structure with the request.
308,8 → 371,39
int rc;
 
switch (IPC_GET_METHOD(call->data)) {
case IPC_M_CONNECTION_CLONE: {
phone_t *cloned_phone;
GET_CHECK_PHONE(cloned_phone, IPC_GET_ARG1(call->data),
return ENOENT);
phones_lock(cloned_phone, phone);
if ((cloned_phone->state != IPC_PHONE_CONNECTED) ||
phone->state != IPC_PHONE_CONNECTED) {
phones_unlock(cloned_phone, phone);
return EINVAL;
}
/*
* We can be pretty sure now that both tasks exist and we are
* connected to them. As we continue to hold the phone locks,
* we are effectively preventing them from finishing their
* potential cleanup.
*/
newphid = phone_alloc(phone->callee->task);
if (newphid < 0) {
phones_unlock(cloned_phone, phone);
return ELIMIT;
}
ipc_phone_connect(&phone->callee->task->phones[newphid],
cloned_phone->callee);
phones_unlock(cloned_phone, phone);
/* Set the new phone for the callee. */
IPC_SET_ARG1(call->data, newphid);
break;
}
case IPC_M_CONNECT_ME:
IPC_SET_ARG5(call->data, (unative_t) phone);
break;
case IPC_M_CONNECT_ME_TO:
newphid = phone_alloc();
newphid = phone_alloc(TASK);
if (newphid < 0)
return ELIMIT;
/* Set arg5 for server */
399,7 → 493,7
int phoneid;
 
if (IPC_GET_METHOD(call->data) == IPC_M_CONNECT_TO_ME) {
phoneid = phone_alloc();
phoneid = phone_alloc(TASK);
if (phoneid < 0) { /* Failed to allocate phone */
IPC_SET_RETVAL(call->data, ELIMIT);
ipc_answer(box, call);
/branches/dynload/kernel/generic/src/ipc/ipc.c
328,12 → 328,10
list_remove(&phone->link);
spinlock_unlock(&box->lock);
 
if (phone->state != IPC_PHONE_SLAMMED) {
call = ipc_call_alloc(0);
IPC_SET_METHOD(call->data, IPC_M_PHONE_HUNGUP);
call->flags |= IPC_CALL_DISCARD_ANSWER;
_ipc_call(phone, box, call);
}
call = ipc_call_alloc(0);
IPC_SET_METHOD(call->data, IPC_M_PHONE_HUNGUP);
call->flags |= IPC_CALL_DISCARD_ANSWER;
_ipc_call(phone, box, call);
}
 
phone->state = IPC_PHONE_HUNGUP;