| 55,15 → 55,17 |
|---|
| return count; |
| } |
| |
| /** Send a call over syscall |
| /** 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 |
| */ |
| static __native sys_ipc_call(__native phoneid, __native arg1, __native arg2) |
| static __native sys_ipc_call_sync(__native phoneid, __native arg1, |
| __native arg2, __native *respdata) |
| { |
| call_t *call; |
| phone_t *phone; |
| /* Special answerbox for synchronous messages */ |
| |
| if (phoneid >= IPC_MAX_PHONES) |
| return -ENOENT; |
| 72,7 → 74,36 |
|---|
| if (!phone->callee) |
| return -ENOENT; |
| |
| call = ipc_call_alloc(); |
| call->data[0] = arg1; |
| call->data[1] = arg2; |
| |
| ipc_call_sync(phone, call); |
| |
| copy_to_uspace(respdata, &call->data, sizeof(__native) * IPC_CALL_LEN); |
| |
| return 0; |
| } |
| |
| /** Send an asynchronous call over ipc |
| * |
| * @return Call identification, returns -1 on fatal error, |
| -2 on 'Too many async request, handle answers first |
| */ |
| static __native sys_ipc_call_async(__native phoneid, __native arg1, |
| __native arg2) |
| { |
| call_t *call; |
| phone_t *phone; |
| |
| if (phoneid >= IPC_MAX_PHONES) |
| return -ENOENT; |
| |
| phone = &TASK->phones[phoneid]; |
| if (!phone->callee) |
| return -ENOENT; |
| |
| |
| /* TODO: Check that we did not exceed system imposed maximum |
| * of asynchrnously sent messages |
| * - the userspace should be able to handle it correctly |
| 124,7 → 155,8 |
|---|
| syshandler_t syscall_table[SYSCALL_END] = { |
| sys_ctl, |
| sys_io, |
| sys_ipc_call, |
| sys_ipc_call_sync, |
| sys_ipc_call_async, |
| sys_ipc_answer, |
| sys_ipc_wait_for_call |
| }; |