Subversion Repositories HelenOS

Rev

Rev 955 | Rev 965 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 955 Rev 959
Line 53... Line 53...
53 
        putchar(((char *) buf)[i]);
 53 
        putchar(((char *) buf)[i]);
54 
   
 54 
   
55 
    return count;
 55 
    return count;
56 
}
 56 
}
57 
 
 57 
 
58 
/** Send a call over syscall
 58 
/** Send a call over IPC, wait for reply, return to user
59 
 *
 59 
 *
60 
 * @return Call identification, returns -1 on fatal error,
 60 
 * @return Call identification, returns -1 on fatal error,
61 
           -2 on 'Too many async request, handle answers first
 61 
           -2 on 'Too many async request, handle answers first
62 
 */
 62 
 */
63 
static __native sys_ipc_call(__native phoneid, __native arg1, __native arg2)
 63 
static __native sys_ipc_call_sync(__native phoneid, __native arg1,
- 
 
 64 
                   __native arg2, __native *respdata)
- 
 
 65 
{
- 
 
 66 
    call_t *call;
- 
 
 67 
    phone_t *phone;
- 
 
 68 
    /* Special answerbox for synchronous messages */
- 
 
 69 
 
- 
 
 70 
    if (phoneid >= IPC_MAX_PHONES)
- 
 
 71 
        return -ENOENT;
- 
 
 72 
 
- 
 
 73 
    phone = &TASK->phones[phoneid];
- 
 
 74 
    if (!phone->callee)
- 
 
 75 
        return -ENOENT;
- 
 
 76 
 
- 
 
 77 
    call = ipc_call_alloc();
- 
 
 78 
    call->data[0] = arg1;
- 
 
 79 
    call->data[1] = arg2;
- 
 
 80 
   
- 
 
 81 
    ipc_call_sync(phone, call);
- 
 
 82 
 
- 
 
 83 
    copy_to_uspace(respdata, &call->data, sizeof(__native) * IPC_CALL_LEN);
- 
 
 84 
 
- 
 
 85 
    return 0;
- 
 
 86 
}
- 
 
 87 
 
- 
 
 88 
/** Send an asynchronous call over ipc
- 
 
 89 
 *
- 
 
 90 
 * @return Call identification, returns -1 on fatal error,
- 
 
 91 
           -2 on 'Too many async request, handle answers first
- 
 
 92 
 */
- 
 
 93 
static __native sys_ipc_call_async(__native phoneid, __native arg1,
- 
 
 94 
                   __native arg2)
64 
{
 95 
{
65 
    call_t *call;
 96 
    call_t *call;
66 
    phone_t *phone;
 97 
    phone_t *phone;
67 
 
 98 
 
68 
    if (phoneid >= IPC_MAX_PHONES)
 99 
    if (phoneid >= IPC_MAX_PHONES)
Line 122... Line 153...
122 
 
 153 
 
123 
 
 154 
 
124 
syshandler_t syscall_table[SYSCALL_END] = {
 155 
syshandler_t syscall_table[SYSCALL_END] = {
125 
    sys_ctl,
 156 
    sys_ctl,
126 
    sys_io,
 157 
    sys_io,
127 
    sys_ipc_call,
 158 
    sys_ipc_call_sync,
- 
 
 159 
    sys_ipc_call_async,
128 
    sys_ipc_answer,
 160 
    sys_ipc_answer,
129 
    sys_ipc_wait_for_call
 161 
    sys_ipc_wait_for_call
130 
};
 162 
};