WebSVN – HelenOS – Diff – /trunk/kernel/generic/src/ipc/sysipc.c



#include <syscall/copy.h>
#include <security/cap.h>
#include <mm/as.h>
#include <print.h>
 
#define GET_CHECK_PHONE(phone, phoneid, err) { \
      if (phoneid > IPC_MAX_PHONES) { err; } \
      phone = &TASK->phones[phoneid]; \
}
 
#define STRUCT_TO_USPACE(dst, src) copy_to_uspace(dst, src, sizeof(*(src)))
 
/** Return true if the method is a system method */
static inline int is_system_method(unative_t method)
{
    if (method <= IPC_M_LAST_SYSTEM)

 * - some system messages may be forwarded, for some of them
 *   it is useless
 */
static inline int is_forwardable(unative_t method)
{
    if (method == IPC_M_PHONE_HUNGUP || method == IPC_M_AS_AREA_SEND ||
        method == IPC_M_AS_AREA_RECV)
        return 0; /* This message is meant only for the receiver */
    return 1;
}
 
/****************************************************/

        if (IPC_GET_RETVAL(answer->data)) {
            /* The connection was not accepted */
            phone_dealloc(phoneid);
        } else {
            /* The connection was accepted */
            phone_connect(phoneid, &answer->sender->answerbox);
            /* Set 'phone identification' as arg3 of response */
            IPC_SET_ARG3(answer->data,
                (unative_t) &TASK->phones[phoneid]);
        }
    } else if (IPC_GET_METHOD(*olddata) == IPC_M_CONNECT_ME_TO) {
        /* If the users accepted call, connect */
        if (!IPC_GET_RETVAL(answer->data)) {
            ipc_phone_connect((phone_t *) IPC_GET_ARG3(*olddata),
                &TASK->answerbox);
        }
    } else if (IPC_GET_METHOD(*olddata) == IPC_M_AS_AREA_SEND) {
        if (!IPC_GET_RETVAL(answer->data)) {
            /* Accepted, handle as_area receipt */
            ipl_t ipl;
            int rc;
            as_t *as;
           
            ipl = interrupts_disable();
            spinlock_lock(&answer->sender->lock);
            as = answer->sender->as;
            spinlock_unlock(&answer->sender->lock);
            interrupts_restore(ipl);
           
            rc = as_area_share(as, IPC_GET_ARG1(*olddata),
                IPC_GET_ARG2(*olddata), AS,
                IPC_GET_ARG1(answer->data), IPC_GET_ARG3(*olddata));
            IPC_SET_RETVAL(answer->data, rc);
            return rc;
        }
    } else if (IPC_GET_METHOD(*olddata) == IPC_M_AS_AREA_RECV) {
        if (!IPC_GET_RETVAL(answer->data)) {

            spinlock_lock(&answer->sender->lock);
            as = answer->sender->as;
            spinlock_unlock(&answer->sender->lock);
            interrupts_restore(ipl);
           
            rc = as_area_share(AS, IPC_GET_ARG1(answer->data),
                IPC_GET_ARG2(*olddata), as, IPC_GET_ARG1(*olddata),
                IPC_GET_ARG2(answer->data));
            IPC_SET_RETVAL(answer->data, rc);
        }
    }
    return 0;
}

    case IPC_M_CONNECT_ME_TO:
        newphid = phone_alloc();
        if (newphid < 0)
            return ELIMIT;
        /* Set arg3 for server */
        IPC_SET_ARG3(call->data, (unative_t) &TASK->phones[newphid]);
        call->flags |= IPC_CALL_CONN_ME_TO;
        call->priv = newphid;
        break;
    case IPC_M_AS_AREA_SEND:
        size = as_get_size(IPC_GET_ARG1(call->data));

 */
 
/** Do basic kernel processing of received call answer */
static void process_answer(call_t *call)
{
    if (IPC_GET_RETVAL(call->data) == EHANGUP &&
        (call->flags & IPC_CALL_FORWARDED))
        IPC_SET_RETVAL(call->data, EFORWARD);
 
    if (call->flags & IPC_CALL_CONN_ME_TO) {
        if (IPC_GET_RETVAL(call->data))
            phone_dealloc(call->priv);

 
/** Do basic kernel processing of received call request
 *
 * @return 0 - the call should be passed to userspace, 1 - ignore call
 */
static int process_request(answerbox_t *box, call_t *call)
{
    int phoneid;
 
    if (IPC_GET_METHOD(call->data) == IPC_M_CONNECT_TO_ME) {
        phoneid = phone_alloc();

/** Send a call over IPC, wait for reply, return to user
 *
 * @return Call identification, returns -1 on fatal error,
           -2 on 'Too many async request, handle answers first
 */
unative_t sys_ipc_call_sync_fast(unative_t phoneid, unative_t method,
    unative_t arg1, ipc_data_t *data)
{
    call_t call;
    phone_t *phone;
    int res;
 

 
    return 0;
}
 
/** Synchronous IPC call allowing to send whole message */
unative_t sys_ipc_call_sync(unative_t phoneid, ipc_data_t *question,
    ipc_data_t *reply)
{
    call_t call;
    phone_t *phone;
    int res;
    int rc;
 
    ipc_call_static_init(&call);
    rc = copy_from_uspace(&call.data.args, &question->args,
        sizeof(call.data.args));
    if (rc != 0)
        return (unative_t) rc;
 
    GET_CHECK_PHONE(phone, phoneid, return ENOENT);
 

/** Send an asynchronous call over ipc
 *
 * @return Call identification, returns -1 on fatal error,
           -2 on 'Too many async request, handle answers first
 */
unative_t sys_ipc_call_async_fast(unative_t phoneid, unative_t method,
    unative_t arg1, unative_t arg2)
{
    call_t *call;
    phone_t *phone;
    int res;
 

    IPC_SET_METHOD(call->data, method);
    IPC_SET_ARG1(call->data, arg1);
    IPC_SET_ARG2(call->data, arg2);
    IPC_SET_ARG3(call->data, 0);
 
    if (!(res = request_preprocess(call)))
        ipc_call(phone, call);
    else
        ipc_backsend_err(phone, call, res);
 
    return (unative_t) call;

        return IPC_CALLRET_TEMPORARY;
 
    GET_CHECK_PHONE(phone, phoneid, return IPC_CALLRET_FATAL);
 
    call = ipc_call_alloc(0);
    rc = copy_from_uspace(&call->data.args, &data->args,
        sizeof(call->data.args));
    if (rc != 0) {
        ipc_call_free(call);
        return (unative_t) rc;
    }
    if (!(res = request_preprocess(call)))
        ipc_call(phone, call);
    else
        ipc_backsend_err(phone, call, res);
 
    return (unative_t) call;

 *
 * Warning: If implementing non-fast version, make sure that
 *          arg3 is not rewritten for certain system IPC
 */
unative_t sys_ipc_forward_fast(unative_t callid, unative_t phoneid,
    unative_t method, unative_t arg1)
{
    call_t *call;
    phone_t *phone;
 
    call = get_call(callid);

 
    return ipc_forward(call, phone, &TASK->answerbox);
}
 
/** Send IPC answer */
unative_t sys_ipc_answer_fast(unative_t callid, unative_t retval,
    unative_t arg1, unative_t arg2)
{
    call_t *call;
    ipc_data_t saved_data;
    int saveddata = 0;
    int rc;

    if (answer_need_old(call)) {
        memcpy(&saved_data, &call->data, sizeof(call->data));
        saveddata = 1;
    }
    rc = copy_from_uspace(&call->data.args, &data->args,
        sizeof(call->data.args));
    if (rc != 0)
        return rc;
 
    rc = answer_preprocess(call, saveddata ? &saved_data : NULL);
   

    return 0;
}
 
/** Wait for incoming ipc call or answer
 *
 * @param calldata  Pointer to buffer where the call/answer data is stored.
 * @param usec      Timeout. See waitq_sleep_timeout() for explanation.
 * @param flags     Select mode of sleep operation. See waitq_sleep_timeout()
 *          for explanation.
 *
 * @return Callid, if callid & 1, then the call is answer
 */
unative_t sys_ipc_wait_for_call(ipc_data_t *calldata, uint32_t usec, int flags)
{
    call_t *call;
 
restart:   
    call = ipc_wait_for_call(&TASK->answerbox, usec,
        flags | SYNCH_FLAGS_INTERRUPTIBLE);
    if (!call)
        return 0;
 
    if (call->flags & IPC_CALL_NOTIF) {
        ASSERT(! (call->flags & IPC_CALL_STATIC_ALLOC));

 * @param method Method to be associated with the notification.
 * @param ucode Uspace pointer to the top-half pseudocode.
 *
 * @return EPERM or a return code returned by ipc_irq_register().
 */
unative_t sys_ipc_register_irq(inr_t inr, devno_t devno, unative_t method,
    irq_code_t *ucode)
{
    if (!(cap_get(TASK) & CAP_IRQ_REG))
        return EPERM;
 
    return ipc_irq_register(&TASK->answerbox, inr, devno, method, ucode);

Rev 2098	Rev 2359
Line 47...	Line 47...
47	#include <syscall/copy.h>	47	#include <syscall/copy.h>
48	#include <security/cap.h>	48	#include <security/cap.h>
49	#include <mm/as.h>	49	#include <mm/as.h>
50	#include <print.h>	50	#include <print.h>
51		51
52	#define GET_CHECK_PHONE(phone,phoneid,err) { \	52	#define GET_CHECK_PHONE(phone, phoneid, err) { \
53	if (phoneid > IPC_MAX_PHONES) { err; } \	53	if (phoneid > IPC_MAX_PHONES) { err; } \
54	phone = &TASK->phones[phoneid]; \	54	phone = &TASK->phones[phoneid]; \
55	}	55	}
56		56
57	#define STRUCT_TO_USPACE(dst,src) copy_to_uspace(dst,src,sizeof(*(src)))	57	#define STRUCT_TO_USPACE(dst, src) copy_to_uspace(dst, src, sizeof(*(src)))
58		58
59	/** Return true if the method is a system method */	59	/** Return true if the method is a system method */
60	static inline int is_system_method(unative_t method)	60	static inline int is_system_method(unative_t method)
61	{	61	{
62	if (method <= IPC_M_LAST_SYSTEM)	62	if (method <= IPC_M_LAST_SYSTEM)
Line 69...	Line 69...
69	* - some system messages may be forwarded, for some of them	69	* - some system messages may be forwarded, for some of them
70	* it is useless	70	* it is useless
71	*/	71	*/
72	static inline int is_forwardable(unative_t method)	72	static inline int is_forwardable(unative_t method)
73	{	73	{
74	if (method == IPC_M_PHONE_HUNGUP \|\| method == IPC_M_AS_AREA_SEND \	74	if (method == IPC_M_PHONE_HUNGUP \|\| method == IPC_M_AS_AREA_SEND \|\|
75	\|\| method == IPC_M_AS_AREA_RECV)	75	method == IPC_M_AS_AREA_RECV)
76	return 0; /* This message is meant only for the receiver */	76	return 0; /* This message is meant only for the receiver */
77	return 1;	77	return 1;
78	}	78	}
79		79
80	/****************************************************/	80	/****************************************************/
Line 128...	Line 128...
128	if (IPC_GET_RETVAL(answer->data)) {	128	if (IPC_GET_RETVAL(answer->data)) {
129	/* The connection was not accepted */	129	/* The connection was not accepted */
130	phone_dealloc(phoneid);	130	phone_dealloc(phoneid);
131	} else {	131	} else {
132	/* The connection was accepted */	132	/* The connection was accepted */
133	phone_connect(phoneid,&answer->sender->answerbox);	133	phone_connect(phoneid, &answer->sender->answerbox);
134	/* Set 'phone identification' as arg3 of response */	134	/* Set 'phone identification' as arg3 of response */
-		135	IPC_SET_ARG3(answer->data,
135	IPC_SET_ARG3(answer->data, (unative_t)&TASK->phones[phoneid]);	136	(unative_t) &TASK->phones[phoneid]);
136	}	137	}
137	} else if (IPC_GET_METHOD(*olddata) == IPC_M_CONNECT_ME_TO) {	138	} else if (IPC_GET_METHOD(*olddata) == IPC_M_CONNECT_ME_TO) {
138	/* If the users accepted call, connect */	139	/* If the users accepted call, connect */
139	if (!IPC_GET_RETVAL(answer->data)) {	140	if (!IPC_GET_RETVAL(answer->data)) {
140	ipc_phone_connect((phone_t )IPC_GET_ARG3(olddata),	141	ipc_phone_connect((phone_t ) IPC_GET_ARG3(olddata),
141	&TASK->answerbox);	142	&TASK->answerbox);
142	}	143	}
143	} else if (IPC_GET_METHOD(*olddata) == IPC_M_AS_AREA_SEND) {	144	} else if (IPC_GET_METHOD(*olddata) == IPC_M_AS_AREA_SEND) {
-		145	if (!IPC_GET_RETVAL(answer->data)) {
144	if (!IPC_GET_RETVAL(answer->data)) { /* Accepted, handle as_area receipt */	146	/* Accepted, handle as_area receipt */
145	ipl_t ipl;	147	ipl_t ipl;
146	int rc;	148	int rc;
147	as_t *as;	149	as_t *as;
148		150
149	ipl = interrupts_disable();	151	ipl = interrupts_disable();
150	spinlock_lock(&answer->sender->lock);	152	spinlock_lock(&answer->sender->lock);
151	as = answer->sender->as;	153	as = answer->sender->as;
152	spinlock_unlock(&answer->sender->lock);	154	spinlock_unlock(&answer->sender->lock);
153	interrupts_restore(ipl);	155	interrupts_restore(ipl);
154		156
155	rc = as_area_share(as, IPC_GET_ARG1(olddata), IPC_GET_ARG2(olddata),	157	rc = as_area_share(as, IPC_GET_ARG1(*olddata),
-		158	IPC_GET_ARG2(*olddata), AS,
156	AS, IPC_GET_ARG1(answer->data), IPC_GET_ARG3(*olddata));	159	IPC_GET_ARG1(answer->data), IPC_GET_ARG3(*olddata));
157	IPC_SET_RETVAL(answer->data, rc);	160	IPC_SET_RETVAL(answer->data, rc);
158	return rc;	161	return rc;
159	}	162	}
160	} else if (IPC_GET_METHOD(*olddata) == IPC_M_AS_AREA_RECV) {	163	} else if (IPC_GET_METHOD(*olddata) == IPC_M_AS_AREA_RECV) {
161	if (!IPC_GET_RETVAL(answer->data)) {	164	if (!IPC_GET_RETVAL(answer->data)) {
Line 167...	Line 170...
167	spinlock_lock(&answer->sender->lock);	170	spinlock_lock(&answer->sender->lock);
168	as = answer->sender->as;	171	as = answer->sender->as;
169	spinlock_unlock(&answer->sender->lock);	172	spinlock_unlock(&answer->sender->lock);
170	interrupts_restore(ipl);	173	interrupts_restore(ipl);
171		174
172	rc = as_area_share(AS, IPC_GET_ARG1(answer->data), IPC_GET_ARG2(*olddata),	175	rc = as_area_share(AS, IPC_GET_ARG1(answer->data),
173	as, IPC_GET_ARG1(*olddata), IPC_GET_ARG2(answer->data));	176	IPC_GET_ARG2(olddata), as, IPC_GET_ARG1(olddata),
-		177	IPC_GET_ARG2(answer->data));
174	IPC_SET_RETVAL(answer->data, rc);	178	IPC_SET_RETVAL(answer->data, rc);
175	}	179	}
176	}	180	}
177	return 0;	181	return 0;
178	}	182	}
Line 190...	Line 194...
190	case IPC_M_CONNECT_ME_TO:	194	case IPC_M_CONNECT_ME_TO:
191	newphid = phone_alloc();	195	newphid = phone_alloc();
192	if (newphid < 0)	196	if (newphid < 0)
193	return ELIMIT;	197	return ELIMIT;
194	/* Set arg3 for server */	198	/* Set arg3 for server */
195	IPC_SET_ARG3(call->data, (unative_t)&TASK->phones[newphid]);	199	IPC_SET_ARG3(call->data, (unative_t) &TASK->phones[newphid]);
196	call->flags \|= IPC_CALL_CONN_ME_TO;	200	call->flags \|= IPC_CALL_CONN_ME_TO;
197	call->priv = newphid;	201	call->priv = newphid;
198	break;	202	break;
199	case IPC_M_AS_AREA_SEND:	203	case IPC_M_AS_AREA_SEND:
200	size = as_get_size(IPC_GET_ARG1(call->data));	204	size = as_get_size(IPC_GET_ARG1(call->data));
Line 215...	Line 219...
215	*/	219	*/
216		220
217	/** Do basic kernel processing of received call answer */	221	/** Do basic kernel processing of received call answer */
218	static void process_answer(call_t *call)	222	static void process_answer(call_t *call)
219	{	223	{
220	if (IPC_GET_RETVAL(call->data) == EHANGUP && \	224	if (IPC_GET_RETVAL(call->data) == EHANGUP &&
221	call->flags & IPC_CALL_FORWARDED)	225	(call->flags & IPC_CALL_FORWARDED))
222	IPC_SET_RETVAL(call->data, EFORWARD);	226	IPC_SET_RETVAL(call->data, EFORWARD);
223		227
224	if (call->flags & IPC_CALL_CONN_ME_TO) {	228	if (call->flags & IPC_CALL_CONN_ME_TO) {
225	if (IPC_GET_RETVAL(call->data))	229	if (IPC_GET_RETVAL(call->data))
226	phone_dealloc(call->priv);	230	phone_dealloc(call->priv);
Line 231...	Line 235...
231		235
232	/** Do basic kernel processing of received call request	236	/** Do basic kernel processing of received call request
233	*	237	*
234	* @return 0 - the call should be passed to userspace, 1 - ignore call	238	* @return 0 - the call should be passed to userspace, 1 - ignore call
235	*/	239	*/
236	static int process_request(answerbox_t box,call_t call)	240	static int process_request(answerbox_t box, call_t call)
237	{	241	{
238	int phoneid;	242	int phoneid;
239		243
240	if (IPC_GET_METHOD(call->data) == IPC_M_CONNECT_TO_ME) {	244	if (IPC_GET_METHOD(call->data) == IPC_M_CONNECT_TO_ME) {
241	phoneid = phone_alloc();	245	phoneid = phone_alloc();
Line 252...	Line 256...
252	/** Send a call over IPC, wait for reply, return to user	256	/** Send a call over IPC, wait for reply, return to user
253	*	257	*
254	* @return Call identification, returns -1 on fatal error,	258	* @return Call identification, returns -1 on fatal error,
255	-2 on 'Too many async request, handle answers first	259	-2 on 'Too many async request, handle answers first
256	*/	260	*/
257	unative_t sys_ipc_call_sync_fast(unative_t phoneid, unative_t method,	261	unative_t sys_ipc_call_sync_fast(unative_t phoneid, unative_t method,
258	unative_t arg1, ipc_data_t *data)	262	unative_t arg1, ipc_data_t *data)
259	{	263	{
260	call_t call;	264	call_t call;
261	phone_t *phone;	265	phone_t *phone;
262	int res;	266	int res;
263		267
Line 276...	Line 280...
276		280
277	return 0;	281	return 0;
278	}	282	}
279		283
280	/** Synchronous IPC call allowing to send whole message */	284	/** Synchronous IPC call allowing to send whole message */
281	unative_t sys_ipc_call_sync(unative_t phoneid, ipc_data_t *question,	285	unative_t sys_ipc_call_sync(unative_t phoneid, ipc_data_t *question,
282	ipc_data_t *reply)	286	ipc_data_t *reply)
283	{	287	{
284	call_t call;	288	call_t call;
285	phone_t *phone;	289	phone_t *phone;
286	int res;	290	int res;
287	int rc;	291	int rc;
288		292
289	ipc_call_static_init(&call);	293	ipc_call_static_init(&call);
290	rc = copy_from_uspace(&call.data.args, &question->args, sizeof(call.data.args));	294	rc = copy_from_uspace(&call.data.args, &question->args,
-		295	sizeof(call.data.args));
291	if (rc != 0)	296	if (rc != 0)
292	return (unative_t) rc;	297	return (unative_t) rc;
293		298
294	GET_CHECK_PHONE(phone, phoneid, return ENOENT);	299	GET_CHECK_PHONE(phone, phoneid, return ENOENT);
295		300
Line 322...	Line 327...
322	/** Send an asynchronous call over ipc	327	/** Send an asynchronous call over ipc
323	*	328	*
324	* @return Call identification, returns -1 on fatal error,	329	* @return Call identification, returns -1 on fatal error,
325	-2 on 'Too many async request, handle answers first	330	-2 on 'Too many async request, handle answers first
326	*/	331	*/
327	unative_t sys_ipc_call_async_fast(unative_t phoneid, unative_t method,	332	unative_t sys_ipc_call_async_fast(unative_t phoneid, unative_t method,
328	unative_t arg1, unative_t arg2)	333	unative_t arg1, unative_t arg2)
329	{	334	{
330	call_t *call;	335	call_t *call;
331	phone_t *phone;	336	phone_t *phone;
332	int res;	337	int res;
333		338
Line 340...	Line 345...
340	IPC_SET_METHOD(call->data, method);	345	IPC_SET_METHOD(call->data, method);
341	IPC_SET_ARG1(call->data, arg1);	346	IPC_SET_ARG1(call->data, arg1);
342	IPC_SET_ARG2(call->data, arg2);	347	IPC_SET_ARG2(call->data, arg2);
343	IPC_SET_ARG3(call->data, 0);	348	IPC_SET_ARG3(call->data, 0);
344		349
345	if (!(res=request_preprocess(call)))	350	if (!(res = request_preprocess(call)))
346	ipc_call(phone, call);	351	ipc_call(phone, call);
347	else	352	else
348	ipc_backsend_err(phone, call, res);	353	ipc_backsend_err(phone, call, res);
349		354
350	return (unative_t) call;	355	return (unative_t) call;
Line 365...	Line 370...
365	return IPC_CALLRET_TEMPORARY;	370	return IPC_CALLRET_TEMPORARY;
366		371
367	GET_CHECK_PHONE(phone, phoneid, return IPC_CALLRET_FATAL);	372	GET_CHECK_PHONE(phone, phoneid, return IPC_CALLRET_FATAL);
368		373
369	call = ipc_call_alloc(0);	374	call = ipc_call_alloc(0);
370	rc = copy_from_uspace(&call->data.args, &data->args, sizeof(call->data.args));	375	rc = copy_from_uspace(&call->data.args, &data->args,
-		376	sizeof(call->data.args));
371	if (rc != 0) {	377	if (rc != 0) {
372	ipc_call_free(call);	378	ipc_call_free(call);
373	return (unative_t) rc;	379	return (unative_t) rc;
374	}	380	}
375	if (!(res=request_preprocess(call)))	381	if (!(res = request_preprocess(call)))
376	ipc_call(phone, call);	382	ipc_call(phone, call);
377	else	383	else
378	ipc_backsend_err(phone, call, res);	384	ipc_backsend_err(phone, call, res);
379		385
380	return (unative_t) call;	386	return (unative_t) call;
Line 386...	Line 392...
386	*	392	*
387	* Warning: If implementing non-fast version, make sure that	393	* Warning: If implementing non-fast version, make sure that
388	* arg3 is not rewritten for certain system IPC	394	* arg3 is not rewritten for certain system IPC
389	*/	395	*/
390	unative_t sys_ipc_forward_fast(unative_t callid, unative_t phoneid,	396	unative_t sys_ipc_forward_fast(unative_t callid, unative_t phoneid,
391	unative_t method, unative_t arg1)	397	unative_t method, unative_t arg1)
392	{	398	{
393	call_t *call;	399	call_t *call;
394	phone_t *phone;	400	phone_t *phone;
395		401
396	call = get_call(callid);	402	call = get_call(callid);
Line 427...	Line 433...
427		433
428	return ipc_forward(call, phone, &TASK->answerbox);	434	return ipc_forward(call, phone, &TASK->answerbox);
429	}	435	}
430		436
431	/** Send IPC answer */	437	/** Send IPC answer */
432	unative_t sys_ipc_answer_fast(unative_t callid, unative_t retval,	438	unative_t sys_ipc_answer_fast(unative_t callid, unative_t retval,
433	unative_t arg1, unative_t arg2)	439	unative_t arg1, unative_t arg2)
434	{	440	{
435	call_t *call;	441	call_t *call;
436	ipc_data_t saved_data;	442	ipc_data_t saved_data;
437	int saveddata = 0;	443	int saveddata = 0;
438	int rc;	444	int rc;
Line 478...	Line 484...
478	if (answer_need_old(call)) {	484	if (answer_need_old(call)) {
479	memcpy(&saved_data, &call->data, sizeof(call->data));	485	memcpy(&saved_data, &call->data, sizeof(call->data));
480	saveddata = 1;	486	saveddata = 1;
481	}	487	}
482	rc = copy_from_uspace(&call->data.args, &data->args,	488	rc = copy_from_uspace(&call->data.args, &data->args,
483	sizeof(call->data.args));	489	sizeof(call->data.args));
484	if (rc != 0)	490	if (rc != 0)
485	return rc;	491	return rc;
486		492
487	rc = answer_preprocess(call, saveddata ? &saved_data : NULL);	493	rc = answer_preprocess(call, saveddata ? &saved_data : NULL);
488		494
Line 506...	Line 512...
506	return 0;	512	return 0;
507	}	513	}
508		514
509	/** Wait for incoming ipc call or answer	515	/** Wait for incoming ipc call or answer
510	*	516	*
511	* @param calldata Pointer to buffer where the call/answer data is stored	517	* @param calldata Pointer to buffer where the call/answer data is stored.
512	* @param usec Timeout. See waitq_sleep_timeout() for explanation.	518	* @param usec Timeout. See waitq_sleep_timeout() for explanation.
513	* @param flags Select mode of sleep operation. See waitq_sleep_timeout() for explanation.	519	* @param flags Select mode of sleep operation. See waitq_sleep_timeout()
-		520	* for explanation.
514	*	521	*
515	* @return Callid, if callid & 1, then the call is answer	522	* @return Callid, if callid & 1, then the call is answer
516	*/	523	*/
517	unative_t sys_ipc_wait_for_call(ipc_data_t *calldata, uint32_t usec, int flags)	524	unative_t sys_ipc_wait_for_call(ipc_data_t *calldata, uint32_t usec, int flags)
518	{	525	{
519	call_t *call;	526	call_t *call;
520		527
521	restart:	528	restart:
522	call = ipc_wait_for_call(&TASK->answerbox, usec, flags \| SYNCH_FLAGS_INTERRUPTIBLE);	529	call = ipc_wait_for_call(&TASK->answerbox, usec,
-		530	flags \| SYNCH_FLAGS_INTERRUPTIBLE);
523	if (!call)	531	if (!call)
524	return 0;	532	return 0;
525		533
526	if (call->flags & IPC_CALL_NOTIF) {	534	if (call->flags & IPC_CALL_NOTIF) {
527	ASSERT(! (call->flags & IPC_CALL_STATIC_ALLOC));	535	ASSERT(! (call->flags & IPC_CALL_STATIC_ALLOC));
Line 572...	Line 580...
572	* @param method Method to be associated with the notification.	580	* @param method Method to be associated with the notification.
573	* @param ucode Uspace pointer to the top-half pseudocode.	581	* @param ucode Uspace pointer to the top-half pseudocode.
574	*	582	*
575	* @return EPERM or a return code returned by ipc_irq_register().	583	* @return EPERM or a return code returned by ipc_irq_register().
576	*/	584	*/
577	unative_t sys_ipc_register_irq(inr_t inr, devno_t devno, unative_t method, irq_code_t *ucode)	585	unative_t sys_ipc_register_irq(inr_t inr, devno_t devno, unative_t method,
-		586	irq_code_t *ucode)
578	{	587	{
579	if (!(cap_get(TASK) & CAP_IRQ_REG))	588	if (!(cap_get(TASK) & CAP_IRQ_REG))
580	return EPERM;	589	return EPERM;
581		590
582	return ipc_irq_register(&TASK->answerbox, inr, devno, method, ucode);	591	return ipc_irq_register(&TASK->answerbox, inr, devno, method, ucode);

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(root)/trunk/kernel/generic/src/ipc/sysipc.c – Rev 2098 → 2359