void output(envid_t ns_envid) { binaryname = "ns_output"; // LAB 6: Your code here: // - read a packet from the network server // - send the packet to the device driver int perm; envid_t eid; while(1) { if(ipc_recv(&eid, &nsipcbuf, &perm) != NSREQ_OUTPUT) continue; while(sys_transmit(nsipcbuf.pkt.jp_data, nsipcbuf.pkt.jp_len) < 0) sys_yield(); } }
// Dispatches to the correct kernel function, passing the arguments. int32_t syscall(uint32_t syscallno, uint32_t a1, uint32_t a2, uint32_t a3, uint32_t a4, uint32_t a5) { // Call the function corresponding to the 'syscallno' parameter. // Return any appropriate return value. // LAB 3: Your code here. //panic("syscall not implemented"); int32_t rslt; switch (syscallno) { case SYS_cputs: sys_cputs((char *)a1, a2); rslt = 0; break; case SYS_cgetc: rslt = sys_cgetc(); break; case SYS_getenvid: rslt = sys_getenvid(); break; case SYS_env_destroy: rslt = sys_env_destroy(a1); break; case SYS_yield: sys_yield(); rslt = 0; break; case SYS_exofork: rslt = sys_exofork(); break; case SYS_page_alloc: rslt = sys_page_alloc(a1, (void*)a2, a3); break; case SYS_page_map: rslt = sys_page_map(a1, (void *)a2, a3, (void *)a4, a5); break; case SYS_page_unmap: rslt = sys_page_unmap(a1, (void *)a2); break; case SYS_env_set_status: rslt = sys_env_set_status(a1, a2); break; case SYS_env_set_pgfault_upcall: rslt = sys_env_set_pgfault_upcall(a1, (void *)a2); break; case SYS_ipc_try_send: rslt = sys_ipc_try_send(a1, a2, (void *)a3, a4); break; case SYS_ipc_recv: rslt = sys_ipc_recv((void *)a1); break; case SYS_env_set_trapframe: rslt = sys_env_set_trapframe(a1, (void *)a2); break; case SYS_time_msec: rslt = sys_time_msec(); break; case SYS_transmit: rslt = sys_transmit((void *)a1); break; case SYS_recv: rslt = sys_recv((void *)a1); break; default: return -E_INVAL; } return rslt; }
//======= //>>>>>>> new_lab5 // Dispatches to the correct kernel function, passing the arguments. int32_t syscall(uint32_t syscallno, uint32_t a1, uint32_t a2, uint32_t a3, uint32_t a4, uint32_t a5) { // Call the function corresponding to the 'syscallno' parameter. // Return any appropriate return value. // LAB 3: Your code here. /*stone's solution for lab3-B*/ int32_t ret = -E_INVAL; switch (syscallno){ case SYS_cputs: sys_cputs((char*)a1, a2); ret = 0; break; case SYS_cgetc: ret = sys_cgetc(); break; case SYS_getenvid: ret = sys_getenvid(); break; case SYS_env_destroy: ret = sys_env_destroy(a1); break; case SYS_map_kernel_page: ret = sys_map_kernel_page((void*)a1, (void*)a2); break; case SYS_sbrk: ret = sys_sbrk(a1); break; /*stone's solution for lab4-A*/ case SYS_yield: sys_yield(); ret = 0; break; case SYS_exofork: ret = sys_exofork(); break; case SYS_env_set_status: ret = sys_env_set_status(a1, a2); break; case SYS_env_set_pgfault_upcall: ret = sys_env_set_pgfault_upcall((envid_t)a1, (void*)a2); break; case SYS_page_alloc: ret = sys_page_alloc((envid_t)a1, (void*)a2, (int)a3); break; case SYS_page_map: /*stone: see lib/syscall.c for modification details*/ ret = sys_page_map(*((uint32_t*)a1), (void*)*((uint32_t*)a1 + 1), *((uint32_t*)a1 + 2), (void*)*((uint32_t*)a1 + 3), *((uint32_t*)a1 + 4)); //ret = sys_page_map(a1, (void*)a2, a3, (void*)a4, a5); break; case SYS_page_unmap: ret = sys_page_unmap(a1, (void*)a2); break; case SYS_ipc_recv: ret = sys_ipc_recv((void*)a1); break; case SYS_ipc_try_send: ret = sys_ipc_try_send((envid_t)a1, a2, (void*)a3, (int)a4); break; /*stone's solution for lab5*/ case SYS_env_set_trapframe: ret = sys_env_set_trapframe((envid_t)a1, (struct Trapframe*)a2); break; /*stone's solution for lab6-A*/ case SYS_time_msec: ret = sys_time_msec(); break; case SYS_transmit: ret = sys_transmit((uint8_t*)a1, (uint32_t)a2); break; case SYS_receive: ret = sys_receive((uint8_t*)a1, (uint32_t*)a2); break; default: break; } return ret; //panic("syscall not implemented"); }