| 56,25 → 56,35 |
|---|
| return count; |
| } |
| |
| static phone_t * get_phone(__native phoneid) |
| { |
| phone_t *phone; |
| |
| if (phoneid >= IPC_MAX_PHONES) |
| return NULL; |
| |
| phone = &TASK->phones[phoneid]; |
| if (!phone->callee) |
| return NULL; |
| return phone; |
| } |
| |
| /** 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_sync(__native phoneid, __native method, |
| __native arg1, __native *data) |
| static __native sys_ipc_call_sync_fast(__native phoneid, __native method, |
| __native arg1, __native *data) |
| { |
| call_t call; |
| phone_t *phone; |
| /* Special answerbox for synchronous messages */ |
| |
| if (phoneid >= IPC_MAX_PHONES) |
| phone = get_phone(phoneid); |
| if (!phone) |
| return IPC_CALLRET_FATAL; |
| |
| phone = &TASK->phones[phoneid]; |
| if (!phone->callee) |
| return IPC_CALLRET_FATAL; |
| |
| ipc_call_init(&call); |
| IPC_SET_METHOD(call.data, method); |
| IPC_SET_ARG1(call.data, arg1); |
| 86,19 → 96,17 |
|---|
| return 0; |
| } |
| |
| static __native sys_ipc_call_sync_medium(__native phoneid, __native *data) |
| /** Synchronous IPC call allowing to send whole message */ |
| static __native sys_ipc_call_sync(__native phoneid, __native *data) |
| { |
| call_t call; |
| phone_t *phone; |
| /* Special answerbox for synchronous messages */ |
| |
| if (phoneid >= IPC_MAX_PHONES) |
| phone = get_phone(phoneid); |
| if (!phone) |
| return IPC_CALLRET_FATAL; |
| |
| phone = &TASK->phones[phoneid]; |
| if (!phone->callee) |
| return IPC_CALLRET_FATAL; |
| |
| ipc_call_init(&call); |
| copy_from_uspace(&call.data, data, sizeof(call.data)); |
| |
| 109,6 → 117,18 |
|---|
| return 0; |
| } |
| |
| /** Check that the task did not exceed allowed limit |
| * |
| * @return 0 - Limit OK, -1 - limit exceeded |
| */ |
| static int check_call_limit(void) |
| { |
| if (atomic_inc_post(&TASK->active_calls) > IPC_MAX_ASYNC_CALLS) { |
| atomic_dec(&TASK->active_calls); |
| return -1; |
| } |
| return 0; |
| } |
| |
| /** Send an asynchronous call over ipc |
| * |
| 115,23 → 135,19 |
|---|
| * @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 method, |
| __native arg1, __native arg2) |
| static __native sys_ipc_call_async_fast(__native phoneid, __native method, |
| __native arg1, __native arg2) |
| { |
| call_t *call; |
| phone_t *phone; |
| |
| if (phoneid >= IPC_MAX_PHONES) |
| phone = get_phone(phoneid); |
| if (!phone) |
| return IPC_CALLRET_FATAL; |
| |
| phone = &TASK->phones[phoneid]; |
| if (!phone->callee) |
| return IPC_CALLRET_FATAL; |
| if (check_call_limit()) |
| return IPC_CALLRET_TEMPORARY; |
| |
| /* TODO: Check that we did not exceed system imposed maximum |
| * of asynchrnously sent messages |
| * - the userspace should be able to handle it correctly |
| */ |
| call = ipc_call_alloc(); |
| IPC_SET_METHOD(call->data, method); |
| IPC_SET_ARG1(call->data, arg1); |
| 142,6 → 158,31 |
|---|
| return (__native) call; |
| } |
| |
| /** Synchronous IPC call allowing to send whole message |
| * |
| * @return The same as sys_ipc_call_async |
| */ |
| static __native sys_ipc_call_async(__native phoneid, __native *data) |
| { |
| call_t *call; |
| phone_t *phone; |
| |
| phone = get_phone(phoneid); |
| if (!phone) |
| return IPC_CALLRET_FATAL; |
| |
| if (check_call_limit()) |
| return IPC_CALLRET_TEMPORARY; |
| |
| call = ipc_call_alloc(); |
| copy_from_uspace(&call->data, data, sizeof(call->data)); |
| |
| ipc_call(phone, call); |
| |
| return (__native) call; |
| } |
| |
| |
| /** Send IPC answer */ |
| static __native sys_ipc_answer(__native callid, __native retval, __native arg1, |
| __native arg2) |
| 174,9 → 215,11 |
|---|
| call = ipc_wait_for_call(&TASK->answerbox, flags); |
| |
| copy_to_uspace(calldata, &call->data, sizeof(call->data)); |
| |
| if (call->flags & IPC_CALL_ANSWERED) { |
| ASSERT(! (call->flags & IPC_CALL_STATIC_ALLOC)); |
| ipc_call_free(call); |
| atomic_dec(&TASK->active_calls); |
| return ((__native)call) | IPC_CALLID_ANSWERED; |
| } |
| return (__native)call; |
| 191,8 → 234,9 |
|---|
| sys_ctl, |
| sys_io, |
| sys_mremap, |
| sys_ipc_call_sync_fast, |
| sys_ipc_call_sync, |
| sys_ipc_call_sync_medium, |
| sys_ipc_call_async_fast, |
| sys_ipc_call_async, |
| sys_ipc_answer, |
| sys_ipc_wait_for_call |