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Line 93... Line 93...
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93
 
94
#include <futex.h>
94
#include <futex.h>
95
#include <async.h>
95
#include <async.h>
96
#include <fibril.h>
96
#include <fibril.h>
97
#include <stdio.h>
97
#include <stdio.h>
98
#include <libadt/hash_table.h>
98
#include <adt/hash_table.h>
99
#include <libadt/list.h>
99
#include <adt/list.h>
100
#include <ipc/ipc.h>
100
#include <ipc/ipc.h>
101
#include <assert.h>
101
#include <assert.h>
102
#include <errno.h>
102
#include <errno.h>
103
#include <sys/time.h>
103
#include <sys/time.h>
104
#include <arch/barrier.h>
104
#include <arch/barrier.h>
Line 172... Line 172...
172
    /** Fibril function that will be used to handle the connection. */
172
    /** Fibril function that will be used to handle the connection. */
173
    void (*cfibril)(ipc_callid_t, ipc_call_t *);
173
    void (*cfibril)(ipc_callid_t, ipc_call_t *);
174
} connection_t;
174
} connection_t;
175
 
175
 
176
/** Identifier of the incoming connection handled by the current fibril. */
176
/** Identifier of the incoming connection handled by the current fibril. */
177
static __thread connection_t *FIBRIL_connection;
177
static fibril_local connection_t *FIBRIL_connection;
178
 
178
 
179
static void default_client_connection(ipc_callid_t callid, ipc_call_t *call);
179
static void default_client_connection(ipc_callid_t callid, ipc_call_t *call);
180
static void default_interrupt_received(ipc_callid_t callid, ipc_call_t *call);
180
static void default_interrupt_received(ipc_callid_t callid, ipc_call_t *call);
181
 
181
 
182
/**
182
/**
Line 188... Line 188...
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 * Pointer to a fibril function that will be used to handle interrupt
188
 * Pointer to a fibril function that will be used to handle interrupt
189
 * notifications.
189
 * notifications.
190
 */
190
 */
191
static async_client_conn_t interrupt_received = default_interrupt_received;
191
static async_client_conn_t interrupt_received = default_interrupt_received;
192
 
192
 
193
 
-
 
194
static hash_table_t conn_hash_table;
193
static hash_table_t conn_hash_table;
195
static LIST_INITIALIZE(timeout_list);
194
static LIST_INITIALIZE(timeout_list);
196
 
195
 
197
 
-
 
198
#define CONN_HASH_TABLE_CHAINS  32
196
#define CONN_HASH_TABLE_CHAINS  32
199
 
197
 
200
/** Compute hash into the connection hash table based on the source phone hash.
198
/** Compute hash into the connection hash table based on the source phone hash.
201
 *
199
 *
202
 * @param key Pointer to source phone hash.
200
 * @param key Pointer to source phone hash.
Line 498... Line 496...
498
    hash_table_remove(&conn_hash_table, &key, 1);
496
    hash_table_remove(&conn_hash_table, &key, 1);
499
    futex_up(&async_futex);
497
    futex_up(&async_futex);
500
   
498
   
501
    /* Answer all remaining messages with EHANGUP */
499
    /* Answer all remaining messages with EHANGUP */
502
    while (!list_empty(&FIBRIL_connection->msg_queue)) {
500
    while (!list_empty(&FIBRIL_connection->msg_queue)) {
503
        msg_t *msg
501
        msg_t *msg;
504
            = list_get_instance(FIBRIL_connection->msg_queue.next, msg_t, link);
-
 
505
       
502
       
-
 
503
        msg = list_get_instance(FIBRIL_connection->msg_queue.next,
-
 
504
            msg_t, link);
506
        list_remove(&msg->link);
505
        list_remove(&msg->link);
507
        ipc_answer_0(msg->callid, EHANGUP);
506
        ipc_answer_0(msg->callid, EHANGUP);
508
        free(msg);
507
        free(msg);
509
    }
508
    }
510
   
509
   
Line 561... Line 560...
561
            ipc_answer_0(callid, ENOMEM);
560
            ipc_answer_0(callid, ENOMEM);
562
        return NULL;
561
        return NULL;
563
    }
562
    }
564
   
563
   
565
    /* Add connection to the connection hash table */
564
    /* Add connection to the connection hash table */
566
    ipcarg_t key = conn->in_phone_hash;
565
    unsigned long key = conn->in_phone_hash;
567
   
566
   
568
    futex_down(&async_futex);
567
    futex_down(&async_futex);
569
    hash_table_insert(&conn_hash_table, &key, &conn->link);
568
    hash_table_insert(&conn_hash_table, &key, &conn->link);
570
    futex_up(&async_futex);
569
    futex_up(&async_futex);
571
   
570
   
Line 586... Line 585...
586
static void handle_call(ipc_callid_t callid, ipc_call_t *call)
585
static void handle_call(ipc_callid_t callid, ipc_call_t *call)
587
{
586
{
588
    /* Unrouted call - do some default behaviour */
587
    /* Unrouted call - do some default behaviour */
589
    if ((callid & IPC_CALLID_NOTIFICATION)) {
588
    if ((callid & IPC_CALLID_NOTIFICATION)) {
590
        process_notification(callid, call);
589
        process_notification(callid, call);
591
        return;
590
        goto out;
592
    }
591
    }
593
   
592
   
594
    switch (IPC_GET_METHOD(*call)) {
593
    switch (IPC_GET_METHOD(*call)) {
-
 
594
    case IPC_M_CONNECT_ME:
595
    case IPC_M_CONNECT_ME_TO:
595
    case IPC_M_CONNECT_ME_TO:
596
        /* Open new connection with fibril etc. */
596
        /* Open new connection with fibril etc. */
597
        async_new_connection(IPC_GET_ARG5(*call), callid, call,
597
        async_new_connection(IPC_GET_ARG5(*call), callid, call,
598
            client_connection);
598
            client_connection);
599
        return;
599
        goto out;
600
    }
600
    }
601
   
601
   
602
    /* Try to route the call through the connection hash table */
602
    /* Try to route the call through the connection hash table */
603
    if (route_call(callid, call))
603
    if (route_call(callid, call))
604
        return;
604
        goto out;
605
   
605
   
606
    /* Unknown call from unknown phone - hang it up */
606
    /* Unknown call from unknown phone - hang it up */
607
    ipc_answer_0(callid, EHANGUP);
607
    ipc_answer_0(callid, EHANGUP);
-
 
608
    return;
-
 
609
   
-
 
610
out:
-
 
611
    ;
608
}
612
}
609
 
613
 
610
/** Fire all timeouts that expired. */
614
/** Fire all timeouts that expired. */
611
static void handle_expired_timeouts(void)
615
static void handle_expired_timeouts(void)
612
{
616
{
Line 660... Line 664...
660
       
664
       
661
        futex_down(&async_futex);
665
        futex_down(&async_futex);
662
       
666
       
663
        suseconds_t timeout;
667
        suseconds_t timeout;
664
        if (!list_empty(&timeout_list)) {
668
        if (!list_empty(&timeout_list)) {
665
            awaiter_t *waiter
669
            awaiter_t *waiter = list_get_instance(timeout_list.next,
666
                = list_get_instance(timeout_list.next, awaiter_t, link);
670
                awaiter_t, link);
667
           
671
           
668
            struct timeval tv;
672
            struct timeval tv;
669
            gettimeofday(&tv, NULL);
673
            gettimeofday(&tv, NULL);
670
           
674
           
671
            if (tv_gteq(&tv, &waiter->expires)) {
675
            if (tv_gteq(&tv, &waiter->expires)) {
Line 678... Line 682...
678
            timeout = SYNCH_NO_TIMEOUT;
682
            timeout = SYNCH_NO_TIMEOUT;
679
       
683
       
680
        futex_up(&async_futex);
684
        futex_up(&async_futex);
681
       
685
       
682
        ipc_call_t call;
686
        ipc_call_t call;
683
        ipc_callid_t callid
687
        ipc_callid_t callid = ipc_wait_cycle(&call, timeout,
684
            = ipc_wait_cycle(&call, timeout, SYNCH_FLAGS_NONE);
688
            SYNCH_FLAGS_NONE);
685
       
689
       
686
        if (!callid) {
690
        if (!callid) {
687
            handle_expired_timeouts();
691
            handle_expired_timeouts();
688
            continue;
692
            continue;
689
        }
693
        }
Line 732... Line 736...
732
 
736
 
733
/** Initialize the async framework.
737
/** Initialize the async framework.
734
 *
738
 *
735
 * @return Zero on success or an error code.
739
 * @return Zero on success or an error code.
736
 */
740
 */
737
int _async_init(void)
741
int __async_init(void)
738
{
742
{
739
    if (!hash_table_create(&conn_hash_table, CONN_HASH_TABLE_CHAINS, 1,
743
    if (!hash_table_create(&conn_hash_table, CONN_HASH_TABLE_CHAINS, 1,
740
        &conn_hash_table_ops)) {
744
        &conn_hash_table_ops)) {
741
        printf("%s: cannot create hash table\n", "async");
745
        printf("%s: cannot create hash table\n", "async");
742
        return ENOMEM;
746
        return ENOMEM;
Line 756... Line 760...
756
 * @param retval Value returned in the answer.
760
 * @param retval Value returned in the answer.
757
 * @param data   Call data of the answer.
761
 * @param data   Call data of the answer.
758
 */
762
 */
759
static void reply_received(void *arg, int retval, ipc_call_t *data)
763
static void reply_received(void *arg, int retval, ipc_call_t *data)
760
{
764
{
-
 
765
    futex_down(&async_futex);
-
 
766
   
761
    amsg_t *msg = (amsg_t *) arg;
767
    amsg_t *msg = (amsg_t *) arg;
762
    msg->retval = retval;
768
    msg->retval = retval;
763
   
769
   
764
    futex_down(&async_futex);
-
 
765
   
-
 
766
    /* Copy data after futex_down, just in case the call was detached */
770
    /* Copy data after futex_down, just in case the call was detached */
767
    if (msg->dataptr)
771
    if ((msg->dataptr) && (data))
768
        *msg->dataptr = *data;
772
        *msg->dataptr = *data;
769
   
773
   
770
    write_barrier();
774
    write_barrier();
771
   
775
   
772
    /* Remove message from timeout list */
776
    /* Remove message from timeout list */