| 39,23 → 39,16 |
|---|
| #include "ega.h" |
| #include "main.h" |
| |
| void receive_comm_area(ipc_callid_t callid, ipc_call_t *call, void **area, |
| size_t maxsize) |
| void receive_comm_area(ipc_callid_t callid, ipc_call_t *call, void **area) |
| { |
| void *dest; |
| |
| if (*area) { |
| ipc_answer_fast(callid, ELIMIT, 0, 0); |
| return; |
| dest = as_get_mappable_page(IPC_GET_ARG2(*call)); |
| if (ipc_answer_fast(callid, 0, (sysarg_t)dest, 0) == 0) { |
| if (*area) |
| as_area_destroy(*area); |
| *area = dest; |
| } |
| if (IPC_GET_ARG2(*call) > ALIGN_UP(maxsize, PAGE_SIZE)) { |
| ipc_answer_fast(callid, EINVAL, 0, 0); |
| return; |
| } |
| |
| dest = as_get_mappable_page(maxsize); |
| if (ipc_answer_fast(callid, 0, (sysarg_t)dest, 0) == 0) |
| *area = dest; |
| } |
| |
| int main(int argc, char *argv[]) |