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");
}
