static int answer_preprocess(call_t *answer, ipc_data_t *olddata)
{
int rc = EOK;
if (!IPC_GET_RETVAL(answer->data)) {
/* The recipient authorized the change of state. */
phone_t *recipient_phone;
task_t *other_task_s;
task_t *other_task_r;
rc = phone_get(IPC_GET_ARG1(answer->data),
&recipient_phone);
if (rc != EOK) {
IPC_SET_RETVAL(answer->data, ENOENT);
return ENOENT;
}
mutex_lock(&recipient_phone->lock);
if (recipient_phone->state != IPC_PHONE_CONNECTED) {
mutex_unlock(&recipient_phone->lock);
IPC_SET_RETVAL(answer->data, EINVAL);
return EINVAL;
}
other_task_r = recipient_phone->callee->task;
other_task_s = (task_t *) IPC_GET_ARG5(*olddata);
/*
* See if both the sender and the recipient meant the
* same third party task.
*/
if (other_task_r != other_task_s) {
IPC_SET_RETVAL(answer->data, EINVAL);
rc = EINVAL;
} else {
rc = event_task_notify_5(other_task_r,
EVENT_TASK_STATE_CHANGE, false,
IPC_GET_ARG1(*olddata),
IPC_GET_ARG2(*olddata),
IPC_GET_ARG3(*olddata),
LOWER32(olddata->task_id),
UPPER32(olddata->task_id));
IPC_SET_RETVAL(answer->data, rc);
}
mutex_unlock(&recipient_phone->lock);
}
return rc;
}
static int loc_category_get_ids_once(sysarg_t method, sysarg_t arg1,
sysarg_t *id_buf, size_t buf_size, size_t *act_size)
{
async_exch_t *exch = loc_exchange_begin_blocking(LOC_PORT_CONSUMER);
ipc_call_t answer;
aid_t req = async_send_1(exch, method, arg1, &answer);
int rc = async_data_read_start(exch, id_buf, buf_size);
loc_exchange_end(exch);
if (rc != EOK) {
async_forget(req);
return rc;
}
sysarg_t retval;
async_wait_for(req, &retval);
if (retval != EOK) {
return retval;
}
*act_size = IPC_GET_ARG1(answer);
return EOK;
}
/** Register new service.
*
* The @p interface is used when forwarding connection to the server.
* If not 0, the first argument is the interface and the second argument
* is the service ID.
*
* When the interface is zero (default), the first argument is directly
* the handle (to ensure backward compatibility).
*
* @param fqsn Fully qualified service name
* @param[out] sid Service ID of new service
* @param interface Interface when forwarding
*
*/
int loc_service_register_with_iface(const char *fqsn,
service_id_t *sid, sysarg_t interface)
{
async_exch_t *exch = loc_exchange_begin_blocking(LOC_PORT_SUPPLIER);
ipc_call_t answer;
aid_t req = async_send_2(exch, LOC_SERVICE_REGISTER, interface, 0,
&answer);
sysarg_t retval = async_data_write_start(exch, fqsn, str_size(fqsn));
loc_exchange_end(exch);
if (retval != EOK) {
async_forget(req);
return retval;
}
async_wait_for(req, &retval);
if (retval != EOK) {
if (sid != NULL)
*sid = -1;
return retval;
}
if (sid != NULL)
*sid = (service_id_t) IPC_GET_ARG1(answer);
return retval;
}
static void kbd_port_events(ipc_callid_t iid, ipc_call_t *icall, void *arg)
{
/* Ignore parameters, the connection is already opened */
while (true) {
ipc_call_t call;
ipc_callid_t callid = async_get_call(&call);
int retval = EOK;
if (!IPC_GET_IMETHOD(call)) {
/* TODO: Handle hangup */
return;
}
switch (IPC_GET_IMETHOD(call)) {
case ADB_REG_NOTIF:
adb_kbd_reg0_data(IPC_GET_ARG1(call));
break;
default:
retval = ENOENT;
}
async_answer_0(callid, retval);
}
}
/** Handle one connection to APIC.
*
* @param iid Hash of the request that opened the connection.
* @param icall Call data of the request that opened the connection.
* @param arg Local argument.
*/
static void apic_connection(ipc_callid_t iid, ipc_call_t *icall, void *arg)
{
ipc_callid_t callid;
ipc_call_t call;
/*
* Answer the first IPC_M_CONNECT_ME_TO call.
*/
async_answer_0(iid, EOK);
while (true) {
callid = async_get_call(&call);
if (!IPC_GET_IMETHOD(call)) {
/* The other side has hung up. */
async_answer_0(callid, EOK);
return;
}
switch (IPC_GET_IMETHOD(call)) {
case IRC_ENABLE_INTERRUPT:
async_answer_0(callid, apic_enable_irq(IPC_GET_ARG1(call)));
break;
case IRC_CLEAR_INTERRUPT:
/* Noop */
async_answer_0(callid, EOK);
break;
default:
async_answer_0(callid, EINVAL);
break;
}
}
}
static void tcp_sock_socket(tcp_client_t *client, ipc_callid_t callid, ipc_call_t call)
{
tcp_sockdata_t *sock;
int sock_id;
int rc;
ipc_call_t answer;
log_msg(LVL_DEBUG, "tcp_sock_socket()");
rc = tcp_sock_create(client, &sock);
if (rc != EOK) {
async_answer_0(callid, rc);
return;
}
sock->laddr.ipv4 = TCP_IPV4_ANY;
sock->lconn = NULL;
sock->backlog = 0;
sock_id = SOCKET_GET_SOCKET_ID(call);
rc = tcp_sock_finish_setup(sock, &sock_id);
if (rc != EOK) {
tcp_sock_uncreate(sock);
async_answer_0(callid, rc);
return;
}
SOCKET_SET_SOCKET_ID(answer, sock_id);
SOCKET_SET_DATA_FRAGMENT_SIZE(answer, TCP_SOCK_FRAGMENT_SIZE);
SOCKET_SET_HEADER_SIZE(answer, sizeof(tcp_header_t));
async_answer_3(callid, EOK, IPC_GET_ARG1(answer),
IPC_GET_ARG2(answer), IPC_GET_ARG3(answer));
}
static void kbdev_callback_conn(ipc_callid_t iid, ipc_call_t *icall, void *arg)
{
kbdev_t *kbdev;
int retval;
int type, key;
/* Kbdev device structure */
kbdev = arg;
while (true) {
ipc_call_t call;
ipc_callid_t callid;
callid = async_get_call(&call);
if (!IPC_GET_IMETHOD(call)) {
kbdev_destroy(kbdev);
return;
}
switch (IPC_GET_IMETHOD(call)) {
case KBDEV_EVENT:
/* Got event from keyboard device */
retval = 0;
type = IPC_GET_ARG1(call);
key = IPC_GET_ARG2(call);
kbd_push_event(kbdev->kbd_dev, type, key);
break;
default:
retval = ENOTSUP;
break;
}
async_answer_0(callid, retval);
}
}
int vbd_part_create(vbd_t *vbd, service_id_t disk, vbd_part_spec_t *pspec,
vbd_part_id_t *rpart)
{
async_exch_t *exch;
sysarg_t retval;
ipc_call_t answer;
exch = async_exchange_begin(vbd->sess);
aid_t req = async_send_1(exch, VBD_PART_CREATE, disk, &answer);
int rc = async_data_write_start(exch, pspec, sizeof(vbd_part_spec_t));
async_exchange_end(exch);
if (rc != EOK) {
async_forget(req);
return EIO;
}
async_wait_for(req, &retval);
if (retval != EOK)
return EIO;
*rpart = (vbd_part_id_t)IPC_GET_ARG1(answer);
return EOK;
}
/** Add new Wake-On-LAN virtue.
*
* @param[in] dev_sess
* @param[in] type Type of the virtue
* @param[in] data Data required for this virtue
* (depends on type)
* @param[in] length Length of the data
* @param[out] id Identifier of the new virtue
*
* @return EOK If the operation was successfully completed
*
*/
int nic_wol_virtue_add(async_sess_t *dev_sess, nic_wv_type_t type,
const void *data, size_t length, nic_wv_id_t *id)
{
assert(id);
bool send_data = ((data != NULL) && (length != 0));
async_exch_t *exch = async_exchange_begin(dev_sess);
ipc_call_t result;
aid_t message_id = async_send_3(exch, DEV_IFACE_ID(NIC_DEV_IFACE),
NIC_WOL_VIRTUE_ADD, (sysarg_t) type, send_data, &result);
sysarg_t res;
if (send_data) {
int rc = async_data_write_start(exch, data, length);
if (rc != EOK) {
async_exchange_end(exch);
async_wait_for(message_id, &res);
return rc;
}
}
async_exchange_end(exch);
async_wait_for(message_id, &res);
*id = IPC_GET_ARG1(result);
return (int) res;
}
/** Get information about the next received message from UDP service.
*
* @param udp UDP client
* @param rmsg Place to store message information
*
* @return EOK on success or negative error code
*/
static int udp_rmsg_info(udp_t *udp, udp_rmsg_t *rmsg)
{
async_exch_t *exch;
inet_ep_t ep;
ipc_call_t answer;
exch = async_exchange_begin(udp->sess);
aid_t req = async_send_0(exch, UDP_RMSG_INFO, &answer);
int rc = async_data_read_start(exch, &ep, sizeof(inet_ep_t));
async_exchange_end(exch);
if (rc != EOK) {
async_forget(req);
return rc;
}
sysarg_t retval;
async_wait_for(req, &retval);
if (retval != EOK)
return retval;
rmsg->udp = udp;
rmsg->assoc_id = IPC_GET_ARG1(answer);
rmsg->size = IPC_GET_ARG2(answer);
rmsg->remote_ep = ep;
return EOK;
}
/** Get list of IDs into a buffer of fixed size.
*
* @param vbd Virtual Block Device
* @param method IPC method
* @param arg1 First argument
* @param id_buf Buffer to store IDs
* @param buf_size Buffer size
* @param act_size Place to store actual size of complete data.
*
* @return EOK on success or negative error code.
*/
static int vbd_get_ids_once(vbd_t *vbd, sysarg_t method, sysarg_t arg1,
sysarg_t *id_buf, size_t buf_size, size_t *act_size)
{
async_exch_t *exch = async_exchange_begin(vbd->sess);
ipc_call_t answer;
aid_t req = async_send_1(exch, method, arg1, &answer);
int rc = async_data_read_start(exch, id_buf, buf_size);
async_exchange_end(exch);
if (rc != EOK) {
async_forget(req);
return rc;
}
sysarg_t retval;
async_wait_for(req, &retval);
if (retval != EOK) {
return retval;
}
*act_size = IPC_GET_ARG1(answer);
return EOK;
}
/** Handle data requests.
*
* @param fun ddf_fun_t function.
* @param id callid
* @param call IPC request.
*
*/
void default_handler(ddf_fun_t *fun, ipc_callid_t id, ipc_call_t *call)
{
const sysarg_t method = IPC_GET_IMETHOD(*call);
const size_t size = IPC_GET_ARG1(*call);
switch (method) {
case IPC_CHAR_READ:
if (size <= 4 * sizeof(sysarg_t)) {
sysarg_t message[4] = {};
i8042_read(fun, (char *) message, size);
async_answer_4(id, size, message[0], message[1],
message[2], message[3]);
} else
async_answer_0(id, ELIMIT);
break;
case IPC_CHAR_WRITE:
if (size <= 3 * sizeof(sysarg_t)) {
const sysarg_t message[3] = {
IPC_GET_ARG2(*call),
IPC_GET_ARG3(*call),
IPC_GET_ARG4(*call)
};
i8042_write(fun, (char *) message, size);
async_answer_0(id, size);
} else
async_answer_0(id, ELIMIT);
default:
async_answer_0(id, EINVAL);
}
}
/** Default handler for IPC methods not handled by DDF.
*
* @param fun Device function handling the call.
* @param icallid Call id.
* @param icall Call data.
*
*/
static void default_connection_handler(ddf_fun_t *fun,
ipc_callid_t icallid, ipc_call_t *icall)
{
const sysarg_t method = IPC_GET_IMETHOD(*icall);
xt_kbd_t *kbd = ddf_dev_data_get(ddf_fun_get_dev(fun));
switch (method) {
case KBDEV_SET_IND: {
/*
* XT keyboards do not support setting mods,
* assume AT keyboard with Scan Code Set 1.
*/
const unsigned mods = IPC_GET_ARG1(*icall);
const uint8_t status = 0 |
((mods & KM_CAPS_LOCK) ? LI_CAPS : 0) |
((mods & KM_NUM_LOCK) ? LI_NUM : 0) |
((mods & KM_SCROLL_LOCK) ? LI_SCROLL : 0);
uint8_t cmds[] = { KBD_CMD_SET_LEDS, status };
async_exch_t *exch = async_exchange_begin(kbd->parent_sess);
const ssize_t size = chardev_write(exch, cmds, sizeof(cmds));
async_exchange_end(exch);
async_answer_0(icallid, size < 0 ? size : EOK);
break;
}
/*
* This might be ugly but async_callback_receive_start makes no
* difference for incorrect call and malloc failure.
*/
case IPC_M_CONNECT_TO_ME: {
async_sess_t *sess =
async_callback_receive_start(EXCHANGE_SERIALIZE, icall);
/* Probably ENOMEM error, try again. */
if (sess == NULL) {
ddf_msg(LVL_WARN,
"Failed creating callback session");
async_answer_0(icallid, EAGAIN);
break;
}
if (kbd->client_sess == NULL) {
kbd->client_sess = sess;
ddf_msg(LVL_DEBUG, "Set client session");
async_answer_0(icallid, EOK);
} else {
ddf_msg(LVL_ERROR, "Client session already set");
async_answer_0(icallid, ELIMIT);
}
break;
}
default:
ddf_msg(LVL_ERROR, "Unknown method: %d.", (int)method);
async_answer_0(icallid, EINVAL);
break;
}
}
/** Character device connection handler */
static void cuda_connection(ipc_callid_t iid, ipc_call_t *icall, void *arg)
{
ipc_callid_t callid;
ipc_call_t call;
sysarg_t method;
service_id_t dsid;
int dev_addr, i;
/* Get the device handle. */
dsid = IPC_GET_ARG1(*icall);
/* Determine which disk device is the client connecting to. */
dev_addr = -1;
for (i = 0; i < ADB_MAX_ADDR; i++) {
if (adb_dev[i].service_id == dsid)
dev_addr = i;
}
if (dev_addr < 0) {
async_answer_0(iid, EINVAL);
return;
}
/* Answer the IPC_M_CONNECT_ME_TO call. */
async_answer_0(iid, EOK);
while (true) {
callid = async_get_call(&call);
method = IPC_GET_IMETHOD(call);
if (!method) {
/* The other side has hung up. */
async_answer_0(callid, EOK);
return;
}
async_sess_t *sess =
async_callback_receive_start(EXCHANGE_SERIALIZE, &call);
if (sess != NULL) {
if (adb_dev[dev_addr].client_sess == NULL) {
adb_dev[dev_addr].client_sess = sess;
/*
* A hack so that we send the data to the session
* regardless of which address the device is on.
*/
for (i = 0; i < ADB_MAX_ADDR; ++i) {
if (adb_dev[i].service_id == dsid)
adb_dev[i].client_sess = sess;
}
async_answer_0(callid, EOK);
} else
async_answer_0(callid, ELIMIT);
} else
async_answer_0(callid, EINVAL);
}
}
static void iplink_addr_remove_srv(iplink_srv_t *srv, ipc_callid_t callid,
ipc_call_t *call)
{
int rc;
iplink_srv_addr_t addr;
addr.ipv4 = IPC_GET_ARG1(*call);
rc = srv->ops->addr_remove(srv, &addr);
async_answer_0(callid, rc);
}
/** Callback when client connects to a telnet terminal. */
static void client_connection(ipc_callid_t iid, ipc_call_t *icall, void *arg)
{
/* Find the user. */
telnet_user_t *user = telnet_user_get_for_client_connection(IPC_GET_ARG1(*icall));
if (user == NULL) {
async_answer_0(iid, ENOENT);
return;
}
/* Handle messages. */
con_conn(iid, icall, &user->srvs);
}
/** Interrupt handler routine.
*
* Write new data to the corresponding buffer.
*
* @param dev Device that caued the interrupt.
* @param iid Call id.
* @param call pointerr to call data.
*
*/
static void i8042_irq_handler(ddf_dev_t *dev, ipc_callid_t iid,
ipc_call_t *call)
{
i8042_t *controller = dev_i8042(dev);
const uint8_t status = IPC_GET_ARG1(*call);
const uint8_t data = IPC_GET_ARG2(*call);
buffer_t *buffer = (status & i8042_AUX_DATA) ?
&controller->aux_buffer : &controller->kbd_buffer;
buffer_write(buffer, data);
}
static void notification_received(ipc_callid_t callid, ipc_call_t *call)
{
switch (IPC_GET_IMETHOD(*call)) {
case VFS_TASK_STATE_CHANGE:
if (IPC_GET_ARG1(*call) == VFS_PASS_HANDLE)
vfs_pass_handle(
(task_id_t) MERGE_LOUP32(IPC_GET_ARG4(*call),
IPC_GET_ARG5(*call)), call->in_task_id,
(int) IPC_GET_ARG2(*call));
break;
default:
break;
}
}
/** Forward a received call to another destination - slow version.
*
* This function is the slow verision of the sys_ipc_forward_fast interface.
* It can copy all five new arguments and the new interface and method from
* the userspace. It naturally extends the functionality of the fast version.
* For system methods, it additionally stores the new value of arg3 to ARG4.
* For non-system methods, it additionally stores the new value of arg3, arg4
* and arg5, respectively, to ARG3, ARG4 and ARG5, respectively.
*
* @param callid Hash of the call to forward.
* @param phoneid Phone handle to use for forwarding.
* @param data Userspace address of the new IPC data.
* @param mode Flags that specify mode of the forward operation.
*
* @return 0 on succes, otherwise an error code.
*
*/
sysarg_t sys_ipc_forward_slow(sysarg_t callid, sysarg_t phoneid,
ipc_data_t *data, unsigned int mode)
{
ipc_data_t newdata;
int rc = copy_from_uspace(&newdata.args, &data->args,
sizeof(newdata.args));
if (rc != 0)
return (sysarg_t) rc;
return sys_ipc_forward_common(callid, phoneid,
IPC_GET_IMETHOD(newdata), IPC_GET_ARG1(newdata),
IPC_GET_ARG2(newdata), IPC_GET_ARG3(newdata),
IPC_GET_ARG4(newdata), IPC_GET_ARG5(newdata), mode, true);
}
static void ethip_client_conn(ipc_callid_t iid, ipc_call_t *icall, void *arg)
{
ethip_nic_t *nic;
service_id_t sid;
sid = (service_id_t)IPC_GET_ARG1(*icall);
log_msg(LOG_DEFAULT, LVL_DEBUG, "ethip_client_conn(%u)", (unsigned)sid);
nic = ethip_nic_find_by_iplink_sid(sid);
if (nic == NULL) {
log_msg(LOG_DEFAULT, LVL_WARN, "Uknown service ID.");
return;
}
iplink_conn(iid, icall, &nic->iplink);
}
static void connection_handler(ipc_callid_t iid, ipc_call_t *icall, void *arg)
{
logger_interface_t iface = IPC_GET_ARG1(*icall);
switch (iface) {
case LOGGER_INTERFACE_CONTROL:
logger_connection_handler_control(iid);
break;
case LOGGER_INTERFACE_WRITER:
logger_connection_handler_writer(iid);
break;
default:
async_answer_0(iid, EINVAL);
break;
}
}
/** Close the file in the endpoint FS server. */
static int vfs_file_close_remote(vfs_file_t *file)
{
assert(!file->refcnt);
async_exch_t *exch = vfs_exchange_grab(file->node->fs_handle);
ipc_call_t answer;
aid_t msg = async_send_2(exch, VFS_OUT_CLOSE, file->node->service_id,
file->node->index, &answer);
vfs_exchange_release(exch);
sysarg_t rc;
async_wait_for(msg, &rc);
return IPC_GET_ARG1(answer);
}
static void inet_ev_recv(ipc_callid_t callid, ipc_call_t *call)
{
int rc;
inet_dgram_t dgram;
dgram.src.ipv4 = IPC_GET_ARG1(*call);
dgram.dest.ipv4 = IPC_GET_ARG2(*call);
dgram.tos = IPC_GET_ARG3(*call);
rc = async_data_write_accept(&dgram.data, false, 0, 0, 0, &dgram.size);
if (rc != EOK) {
async_answer_0(callid, rc);
return;
}
rc = inet_ev_ops->recv(&dgram);
async_answer_0(callid, rc);
}
static void iplink_send_srv(iplink_srv_t *srv, ipc_callid_t callid,
ipc_call_t *call)
{
iplink_srv_sdu_t sdu;
int rc;
sdu.lsrc.ipv4 = IPC_GET_ARG1(*call);
sdu.ldest.ipv4 = IPC_GET_ARG2(*call);
rc = async_data_write_accept(&sdu.data, false, 0, 0, 0, &sdu.size);
if (rc != EOK) {
async_answer_0(callid, rc);
return;
}
rc = srv->ops->send(srv, &sdu);
free(sdu.data);
async_answer_0(callid, rc);
}
imagemap_handle_t fb_imagemap_create(async_sess_t *sess, imgmap_t *imgmap)
{
async_exch_t *exch = async_exchange_begin(sess);
ipc_call_t answer;
aid_t req = async_send_0(exch, FB_IMAGEMAP_CREATE, &answer);
int rc = async_share_out_start(exch, imgmap, AS_AREA_READ
| AS_AREA_WRITE | AS_AREA_CACHEABLE);
async_exchange_end(exch);
sysarg_t ret;
async_wait_for(req, &ret);
if ((rc != EOK) || (ret != EOK))
return 0;
return (imagemap_handle_t) IPC_GET_ARG1(answer);
}
/** Create new UDP association.
*
* Create a UDP association that allows sending and receiving messages.
*
* @a epp may specify remote address and port, in which case only messages
* from that remote endpoint will be received. Also, that remote endpoint
* is used as default when @c NULL is passed as destination to
* udp_assoc_send_msg.
*
* @a epp may specify a local link or address. If it does not, the association
* will listen on all local links/addresses. If @a epp does not specify
* a local port number, a free dynamic port number will be allocated.
*
* The caller is informed about incoming data by invoking @a cb->recv_msg
*
* @param udp UDP client
* @param epp Internet endpoint pair
* @param cb Callbacks
* @param arg Argument to callbacks
* @param rassoc Place to store pointer to new association
*
* @return EOK on success or negative error code.
*/
int udp_assoc_create(udp_t *udp, inet_ep2_t *epp, udp_cb_t *cb, void *arg,
udp_assoc_t **rassoc)
{
async_exch_t *exch;
udp_assoc_t *assoc;
ipc_call_t answer;
assoc = calloc(1, sizeof(udp_assoc_t));
if (assoc == NULL)
return ENOMEM;
exch = async_exchange_begin(udp->sess);
aid_t req = async_send_0(exch, UDP_ASSOC_CREATE, &answer);
sysarg_t rc = async_data_write_start(exch, (void *)epp,
sizeof(inet_ep2_t));
async_exchange_end(exch);
if (rc != EOK) {
sysarg_t rc_orig;
async_wait_for(req, &rc_orig);
if (rc_orig != EOK)
rc = rc_orig;
goto error;
}
async_wait_for(req, &rc);
if (rc != EOK)
goto error;
assoc->udp = udp;
assoc->id = IPC_GET_ARG1(answer);
assoc->cb = cb;
assoc->cb_arg = arg;
list_append(&assoc->ludp, &udp->assoc);
*rassoc = assoc;
return EOK;
error:
free(assoc);
return (int) rc;
}
static void fault_event(ipc_callid_t callid, ipc_call_t *call)
{
const char *fname;
char *s_taskid;
int rc;
task_id_t taskid;
uintptr_t thread;
taskid = MERGE_LOUP32(IPC_GET_ARG1(*call), IPC_GET_ARG2(*call));
thread = IPC_GET_ARG3(*call);
if (asprintf(&s_taskid, "%" PRIu64, taskid) < 0) {
printf("Memory allocation failed.\n");
return;
}
printf(NAME ": Task %" PRIu64 " fault in thread %p.\n", taskid,
(void *) thread);
fname = "/app/taskdump";
#ifdef CONFIG_WRITE_CORE_FILES
char *dump_fname;
if (asprintf(&dump_fname, "/data/core%" PRIu64, taskid) < 0) {
printf("Memory allocation failed.\n");
return;
}
printf(NAME ": Executing %s -c %s -t %s\n", fname, dump_fname, s_taskid);
rc = task_spawnl(NULL, fname, fname, "-c", dump_fname, "-t", s_taskid,
NULL);
#else
printf(NAME ": Executing %s -t %s\n", fname, s_taskid);
rc = task_spawnl(NULL, fname, fname, "-t", s_taskid, NULL);
#endif
if (rc != EOK) {
printf("%s: Error spawning %s (%s).\n", NAME, fname,
str_error(rc));
}
}
frontbuf_handle_t fb_frontbuf_create(async_sess_t *sess,
screenbuffer_t *frontbuf)
{
async_exch_t *exch = async_exchange_begin(sess);
ipc_call_t answer;
aid_t req = async_send_0(exch, FB_FRONTBUF_CREATE, &answer);
int rc = async_share_out_start(exch, frontbuf, AS_AREA_READ
| AS_AREA_WRITE | AS_AREA_CACHEABLE);
async_exchange_end(exch);
sysarg_t ret;
async_wait_for(req, &ret);
if ((rc != EOK) || (ret != EOK))
return 0;
return (frontbuf_handle_t) IPC_GET_ARG1(answer);
}
/** Get category ID.
*
* Provided name of a category, return its ID.
*
* @param name Category name
* @param cat_id Place to store ID
* @param flags IPC_FLAG_BLOCKING to wait for location service to start
* @return EOK on success or negative error code
*/
int loc_category_get_id(const char *name, category_id_t *cat_id,
unsigned int flags)
{
async_exch_t *exch;
if (flags & IPC_FLAG_BLOCKING)
exch = loc_exchange_begin_blocking(LOC_PORT_CONSUMER);
else {
exch = loc_exchange_begin(LOC_PORT_CONSUMER);
if (exch == NULL)
return errno;
}
ipc_call_t answer;
aid_t req = async_send_0(exch, LOC_CATEGORY_GET_ID,
&answer);
sysarg_t retval = async_data_write_start(exch, name, str_size(name));
loc_exchange_end(exch);
if (retval != EOK) {
async_forget(req);
return retval;
}
async_wait_for(req, &retval);
if (retval != EOK) {
if (cat_id != NULL)
*cat_id = (category_id_t) -1;
return retval;
}
if (cat_id != NULL)
*cat_id = (category_id_t) IPC_GET_ARG1(answer);
return retval;
}
/**
* Register a named application context to the audio server.
* @param sess Valid audio session.
* @param name Valid string identifier
* @param record True if the application context wishes to receive data.
* @return Valid ID on success, Error code on failure.
*/
hound_context_id_t hound_service_register_context(hound_sess_t *sess,
const char *name, bool record)
{
assert(sess);
assert(name);
ipc_call_t call;
async_exch_t *exch = async_exchange_begin(sess);
aid_t mid =
async_send_1(exch, IPC_M_HOUND_CONTEXT_REGISTER, record, &call);
int ret = mid ? EOK : EPARTY;
if (ret == EOK)
ret = async_data_write_start(exch, name, str_size(name));
else
async_forget(mid);
if (ret == EOK)
async_wait_for(mid, (sysarg_t *)&ret);
async_exchange_end(exch);
return ret == EOK ? (hound_context_id_t)IPC_GET_ARG1(call) : ret;
}