void
serve(void)
{
u_int req, whom, perm;
for (;;) {
perm = 0;
req = ipc_recv(&whom, REQVA, &perm);
// All requests must contain an argument page
if (!(perm & PTE_V)) {
writef("Invalid request from %08x: no argument page\n",
whom);
continue; // just leave it hanging...
}
switch (req) {
case FSREQ_OPEN:
serve_open(whom, (struct Fsreq_open *)REQVA);
break;
case FSREQ_MAP:
serve_map(whom, (struct Fsreq_map *)REQVA);
break;
case FSREQ_SET_SIZE:
serve_set_size(whom, (struct Fsreq_set_size *)REQVA);
break;
case FSREQ_CLOSE:
serve_close(whom, (struct Fsreq_close *)REQVA);
break;
case FSREQ_DIRTY:
serve_dirty(whom, (struct Fsreq_dirty *)REQVA);
break;
case FSREQ_REMOVE:
serve_remove(whom, (struct Fsreq_remove *)REQVA);
break;
case FSREQ_SYNC:
serve_sync(whom);
break;
default:
writef("Invalid request code %d from %08x\n", whom, req);
break;
}
syscall_mem_unmap(0, REQVA);
}
}
void
serve(void)
{
uint32_t req, whom;
int perm;
while (1) {
perm = 0;
req = ipc_recv((int32_t *) &whom, (void *) REQVA, &perm);
if (debug)
cprintf("fs req %d from %08x [page %08x: %s]\n",
req, whom, vpt[VPN(REQVA)], REQVA);
// All requests must contain an argument page
if (!(perm & PTE_P)) {
cprintf("Invalid request from %08x: no argument page\n",
whom);
continue; // just leave it hanging...
}
switch (req) {
case FSREQ_OPEN:
serve_open(whom, (struct Fsreq_open*)REQVA);
break;
case FSREQ_MAP:
serve_map(whom, (struct Fsreq_map*)REQVA);
break;
case FSREQ_SET_SIZE:
serve_set_size(whom, (struct Fsreq_set_size*)REQVA);
break;
case FSREQ_CLOSE:
serve_close(whom, (struct Fsreq_close*)REQVA);
break;
case FSREQ_DIRTY:
serve_dirty(whom, (struct Fsreq_dirty*)REQVA);
break;
case FSREQ_REMOVE:
serve_remove(whom, (struct Fsreq_remove*)REQVA);
break;
case FSREQ_SYNC:
serve_sync(whom);
break;
default:
cprintf("Invalid request code %d from %08x\n",
whom, req);
break;
}
sys_page_unmap(0, (void*) REQVA);
}
}