| 30,8 → 30,13 |
|---|
| #include <proc/thread.h> |
| #include <print.h> |
| #include <putchar.h> |
| #include <ipc/ipc.h> |
| #include <errno.h> |
| #include <proc/task.h> |
| #include <arch.h> |
| #include <debug.h> |
| |
| int sys_ctl(void) { |
| static __native sys_ctl(void) { |
| printf("Thread finished\n"); |
| thread_exit(); |
| /* Unreachable */ |
| 38,7 → 43,7 |
|---|
| return 0; |
| } |
| |
| int sys_io(int fd, const void * buf, size_t count) { |
| static __native sys_io(int fd, const void * buf, size_t count) { |
| |
| // TODO: buf sanity checks and a lot of other stuff ... |
| |
| 50,7 → 55,76 |
|---|
| return count; |
| } |
| |
| /** Send a call over syscall |
| * |
| * @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) |
| { |
| 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 |
| */ |
| call = ipc_call_alloc(); |
| call->data[0] = arg1; |
| call->data[1] = arg2; |
| ipc_call(phone, call); |
| |
| return (__native) call; |
| } |
| |
| /** Send IPC answer */ |
| static __native sys_ipc_answer(__native callid, __native arg1, __native arg2) |
| { |
| call_t *call; |
| |
| /* Check that the user is not sending us answer callid */ |
| ASSERT(! (callid & 1)); |
| /* TODO: Check that the callid is in the dispatch table */ |
| call = (call_t *) callid; |
| |
| call->data[0] = arg1; |
| call->data[1] = arg2; |
| |
| ipc_answer(&TASK->answerbox, call); |
| return 0; |
| } |
| |
| /** Wait for incoming ipc call or answer |
| * |
| * @param result |
| * @param flags |
| * @return Callid, if callid & 1, then the call is answer |
| */ |
| static __native sys_ipc_wait_for_call(__native *calldata, __native flags) |
| { |
| call_t *call; |
| |
| call = ipc_wait_for_call(&TASK->answerbox, flags); |
| copy_to_uspace(calldata, &call->data, sizeof(__native) * IPC_CALL_LEN); |
| |
| if (call->flags & IPC_CALL_ANSWERED) |
| return ((__native)call) | 1; |
| return (__native)call; |
| } |
| |
| |
| syshandler_t syscall_table[SYSCALL_END] = { |
| sys_ctl, |
| sys_io |
| sys_io, |
| sys_ipc_call, |
| sys_ipc_answer, |
| sys_ipc_wait_for_call |
| }; |