void
serve_dirty(u_int envid, struct Fsreq_dirty *rq)
{
if (debug) {
writef("serve_dirty %08x %08x %08x\n", envid, rq->req_fileid, rq->req_offset);
}
// Your code here
struct Open *pOpen;
int r;
if ((r = open_lookup(envid, rq->req_fileid, &pOpen)) < 0) {
ipc_send(envid, r, 0, 0);
return;
}
if ((r = file_dirty(pOpen->o_file, rq->req_offset)) < 0) {
ipc_send(envid, r, 0, 0);
return;
}
ipc_send(envid, 0, 0, 0);
return;
// user_panic("serve_dirty not implemented");
}
void
serve_set_size(u_int envid, struct Fsreq_set_size *rq)
{
if (debug) {
writef("serve_set_size %08x %08x %08x\n", envid, rq->req_fileid, rq->req_size);
}
struct Open *pOpen;
int r;
// Your code here
if ((r = open_lookup(envid, rq->req_fileid, &pOpen)) < 0) {
ipc_send(envid, r, 0, 0);
return;
}
if ((r = file_set_size(pOpen->o_file, rq->req_size)) < 0) {
ipc_send(envid, r, 0, 0);
return;
}
ipc_send(envid, 0, 0, 0);//PTE_V);
return;
// user_panic("serve_set_size not implemented");
}
void
serve_map(u_int envid, struct Fsreq_map *rq)
{
if (debug) {
writef("serve_map %08x %08x %08x\n", envid, rq->req_fileid, rq->req_offset);
}
struct Open *pOpen;
u_int filebno;
void *blk;
int r;
// Your code here
if ((r = open_lookup(envid, rq->req_fileid, &pOpen)) < 0) {
ipc_send(envid, r, 0, 0);
return;
}
filebno = rq->req_offset / BY2BLK;
if ((r = file_get_block(pOpen->o_file, filebno, &blk)) < 0) {
ipc_send(envid, r, 0, 0);
return;
}
ipc_send(envid, 0, (u_int)blk, PTE_V | PTE_R | PTE_LIBRARY);
return;
// user_panic("serve_map not implemented");
}
void
serve_dirty(u_int envid, struct Fsreq_dirty *rq)
{
struct Open *o;
int r;
if (debug) printf("serve_dirty %08x %08x %08x\n", envid, rq->req_fileid, rq->req_offset);
if((r = open_lookup(envid, rq->req_fileid, &o)) < 0)
goto out_dirty;
r = file_dirty(&o->o_ff->f_file, rq->req_offset);
out_dirty:
ipc_send(envid, r, 0, 0);
// Your code here
// panic("serve_dirty not implemented");
}
void
serve_close(u_int envid, struct Fsreq_close *rq)
{
struct Open *o;
int r = 0;
if (debug) printf("serve_close %08x %08x\n", envid, rq->req_fileid);
if((r = open_lookup(envid, rq->req_fileid, &o)) < 0)
goto out_close;
file_close(&o->o_ff->f_file);
out_close:
ipc_send(envid, r, 0, 0);
// Your code here
// panic("serve_close not implemented");
}
void
serve_set_size(u_int envid, struct Fsreq_set_size *rq)
{
struct Open *o;
int r = 0;
if (debug) printf("serve_set_size %08x %08x %08x\n", envid, rq->req_fileid, rq->req_size);
if((r = open_lookup(envid, rq->req_fileid, &o)) < 0)
goto out_set_size;
r = file_set_size(&o->o_ff->f_file, rq->req_size);
if(r == 0)
o->o_file->f_size = rq->req_size;
out_set_size:
ipc_send(envid, r, 0, 0);
// Your code here
// panic("serve_set_size not implemented");
}
void
serve_map(u_int envid, struct Fsreq_map *rq)
{
struct Open *o;
void *blk;
int r = 0;
if (debug) printf("serve_map %08x %08x %08x\n", envid, rq->req_fileid, rq->req_offset);
if((r = open_lookup(envid, rq->req_fileid, &o)) < 0)
goto out_map;
if((r = file_get_block(&o->o_ff->f_file, rq->req_offset/BY2BLK, &blk)) < 0)
goto out_map;
ipc_send(envid, 0, (u_long)blk, PTE_P|PTE_U|PTE_W|PTE_LIBRARY);
return;
out_map:
ipc_send(envid, r, 0, 0);
// Your code here
// panic("serve_map not implemented");
}
void
serve_close(u_int envid, struct Fsreq_close *rq)
{
if (debug) {
writef("serve_close %08x %08x\n", envid, rq->req_fileid);
}
struct Open *pOpen;
int r;
if ((r = open_lookup(envid, rq->req_fileid, &pOpen)) < 0) {
ipc_send(envid, r, 0, 0);
return;
}
//writef("serve_close:pOpen = %x\n",pOpen);
file_close(pOpen->o_file);
ipc_send(envid, 0, 0, 0);//PTE_V);
// syscall_mem_unmap(0, (u_int)pOpen);
return;
// user_panic("serve_close not implemented");
}
